CN205528365U - Drying sludge sieves grinding system - Google Patents

Abstract

The utility model belongs to the sludge treatment field, concretely relates to drying sludge sieves grinding system, include: a scraper conveyor, a pants formula tee bend tripper, two drum sieves, feeding belt machine, a bar type grinds the machine, scraper conveyor's emptying point is located the matter entrance top of pants formula tee bend tripper, two materials export of pants formula tee bend tripper sets up with the matter entrance cooperation of two drum sieves respectively, the oversize bin outlet of drum sieve sets up with the material loading mouth cooperation of feeding belt machine, the discharge zone below of feeding belt machine sets up the matter entrance that the bar type ground the machine. Drying sludge sieves grinding system degree of automation is high, and link integration such as screening material, distribution material, grinding material are accomplished, safe and reliable, and degree of automation is high, has consequently practiced thrift the manpower, and is not only still more economical more safely.

Description

It is dried mud screening grinding system

Technical field

The invention belongs to field of sludge treatment, be specifically related to a kind of mud that is dried and sieve grinding system.

Background technology

The construction of wastewater treatment plant of domestic large-and-medium size cities relatively early, due to the most domestic sludge disposal technology also not having mature and feasible, so the mud temporary heap that sewage treatment plant produces is placed on backup land.Elapsing over time, sludge is high-volume continuously increased, and is containing, shovels heap, is filling out in ditch processing procedure, and the foreign material in mud increase the most therewith, and building waste, plant rubbish, house refuse are all adulterated wherein, processes disposal difficulty big；Meanwhile, the character of mud determines that it cannot dry, the highest (average moisture content after testing of moisture content of banking up for a long time 81.48% ), presenting marsh shape, part fruit jelly is block, low bearing capacity, and difficulty of construction is high.

The long-term of mud is arbitrarily banked up, and takies a large amount of soil, reduces land resources utilization efficiency；Give out foul gas, affect nearby residents living environment；The stacking of mud simultaneously produces percolate and can pollute soil and groundwater environment.Storage mud is carried out minimizing, innoxious, disposal of resources, is not only and implements Chinese Ministry of Environmental Protection, the Important Action that rectification requires is correlated with in province's environmental protection Room, be also the environmental risk thus brought of thorough elimination, optimize the objective requirement of garden integrated environment.

In prior art, Patent No. 201320058014.X Utility model disclose a kind of mud lime stabilization gasifying device, be mainly made up of dewatered sludge pond, feeding spiral conveyer, mixing device, Calx warehouse, firming agent warehouse, metered charge conveyer, rotary drum dryer, prilling granulator, discharging incline conveyer, dust arrester and exhaust gas treating tower.This utility model provides the benefit that: mud is heated rapidly by the chemical heat utilizing the firming agent generation hydrolysis added at blending bunker to release, the required energy consumption of effective relatively low mud evaporation；Effectively eliminating bacteria substance, and without the risk of antibacterial substance regeneration；In sludge drying processing procedure, the calcium of increase, ferrum, aluminium element are received by many plastics products for building, and it is of many uses that resource recycles, and make sewage sludge harmlessness, minimizing and resource recycling be formed and circulate benignly.

But inventor is in practice, it has been found that process the mud that domestic sewage factory produces, and to yet suffer from granular size after drying process processes uneven, even it be dried mud and desiccant is combined into agglomerate and volume is excessive.Therefore, inventor combine oneself at association area practical experience for many years, summarize and a kind of be dried mud screening grinding system.

Summary of the invention

Goal of the invention of the present utility model is to provide a kind of mud that is dried and sieves grinding system, it is provided that the dry mud screening grinding system that a kind of economic and environment-friendly and automaticity is high.

In order to realize foregoing invention purpose, the technical scheme is that a kind of mud that is dried sieves grinding system, including: a drag conveyor, a underpants type style three-way distributor, two rotary screens, a charging belt machine, a bar type grinder；The emptying point of described drag conveyor is located at above the material inlet of described underpants type style three-way distributor, two material outlets of described underpants type style three-way distributor material inlet with two rotary screens respectively is equipped with, the oversize discharge gate of described rotary screen is equipped with the feeding port of charging belt machine, arranges the material inlet of bar type grinder below the discharge zone of described charging belt machine.

In technique scheme, one end of described drag conveyor is provided with material inlet, and the tail end of described drag conveyor is emptying point, and the emptying point of described drag conveyor coordinates with the material inlet of described underpants type style three-way distributor.In order to the dry mud that receives through dried, (moisture content can regulate the material inlet of described drag conveyor according to demand, and general moisture content is 40% Below), then dry mud is delivered to discharging at the material inlet of underpants type tripper along the direction tilted upward by drag conveyor.

In technique scheme, under two material outlets of described underpants type style three-way distributor, it is respectively equipped with a rotary screen.Described underpants type style three-way distributor has valve function, can control the circulation of material, i.e. can control the fill process to rotary screen.

In technique scheme, described rotary screen is mainly made up of motor, reductor, drum apparatus, frame, sealing lid, charging aperture, discharging opening and discharge gate；And arranging described charging belt machine under the discharge gate of described rotary screen, the tail end of described charging belt machine is emptying point.After material enters drum apparatus, inclination and rotation due to drum apparatus, making the materials overturning on compass screen surface and rolling, make the qualified material (undersize) discharging opening bottom cylinder rear end discharge, underproof material (oversize) is discharged through the discharge gate of cylinder afterbody.The oversize discharge gate of described rotary screen is equipped with the feeding port of charging belt machine, arranges the material inlet of bar type grinder below the discharge zone of described charging belt machine.

In technique scheme, described dry mud screening grinding system also includes a conveying worm, and the feeding mouth of described conveying worm is arranged at below the discharging opening of described bar type grinder.

In technique scheme, described dry mud screening grinding system also includes that one second drag conveyor, described second drag conveyor are arranged at the discharging opening of described rotary screen and the lower section of the discharging opening of described conveying worm.

Described dry mud screening grinding system can coordinate with other system, such as: sewage sludge feed screening system, mud dosing drying system and dry mud movement system, collectively forms a kind of sludge dewatering dried system.

Described sewage sludge feed screening system includes: a sewage sludge feed bucket, a push-pull valve, a chain mat machine, a vibrosieve, a drag conveyor；Described sewage sludge feed bucket is provided with discharging opening, and this discharge outlet arranges and is provided with chain mat machine below push-pull valve, and this discharging opening, arranges vibrosieve, arrange a drag conveyor below the discharging opening of described vibrosieve below the discharging opening of described chain mat machine.

Described mud dosing drying system includes: a medicament doser, an agitating device, wherein, described medicament doser includes: at least one pharmacy jar and at least one conveying worm, and the bottom of each pharmacy jar is provided with discharging opening, this discharging opening arranges a feed valve, arranges the feeding mouth of conveying worm below the discharging opening of described pharmacy jar；Described agitating device includes: one-level blender, a scrapper conveyor, secondary blender；And the discharging opening of the drag conveyor in the discharging opening of the conveying worm being provided above in described medicament doser of the feeding mouth of described one-level blender and above-mentioned sewage sludge feed screening system, the feeding port of scrapper conveyor is set below the discharging opening of described one-level blender, the charging aperture of secondary blender is set below the discharging opening of this scrapper conveyor.

Described dry mud transportation system includes: a bucket elevator, an electric three passes material distributing valve, a feed bin and a close type leather belt machine；The feeding mouth of described bucket elevator is arranged at below the discharging opening of the conveying worm in above-mentioned dry mud screening grinding system, arranging the feeding mouth of described electric three passes material distributing valve below the discharge port of described fighter's elevator, two discharging openings of described electric three passes material distributing valve coordinate with the feeding mouth of described feed bin, the feeding mouth of close type leather belt machine respectively.

In technique scheme, in described sewage sludge feed screening system, sewage sludge feed bucket is a steel feed bin, be provided with grid ( 5cm × 5cm , can guarantee that the rapid blanking of mud to blender and takes out the material that granule is bigger) and topple over the mud got off for receiving haulage vehicle；Described push-pull valve is an electric gate valve；Described sewage sludge feed system also includes: oversize outward transport belt feeder, a hopper；Described outward transport belt feeder, hopper coordinate with electric vibrating sieve, are provided with the feeding area of drag conveyor below hopper.

In technique scheme, in described mud dosing drying system, above-mentioned medicament doser is located on platform.Arrange the feeding mouth of one-level conveying worm, one-level conveying worm and deuterostrophies conveyer below the discharging opening of the bottom of each pharmacy jar to coordinate；Described blender is two grades of blade forced mixers of twin shaft.

In technique scheme, in described dry mud transportation system, the bottom of described feed bin is provided with electro-hydraulic gate valve；The go on board tail end of belt feeder of described closing is provided with a closing elephant trunk.

In technique scheme, described sludge dewatering dried system is arranged in airtight Factory Building, and airtight factory roof is transparent plane skylight, and vehicle discharge zone uses two storied gate design, and Factory Building designs for tiny structure, is configured with tail gas treatment device；Described tail gas treatment device includes: be laid in the collection and confinement of gases pipeline of Factory Building headroom, aerator, spray scrubber, low temperature plasma gas purifier.Ensure that mud gas in Factory Building when dehydrate will not leak and affect surrounding enviroment.

The method using the sludge dewatering dried system simultaneously provided described in the utility model to process mud comprises the following steps:

(1) Sewage sludge feed screening step: the haulage vehicle loading mud is opened to steel-structure factory building two storied gate discharge zone, open in turn through two storied gate, mud is poured in sewage sludge feed bucket by haulage vehicle, the discharging opening of described sewage sludge feed bucket is provided with push-pull valve, after mud enters sewage sludge feed bucket, open push-pull valve and mud can be discharged from sewage sludge feed bucket；The discharging opening of described sewage sludge feed bucket connects the feeding mouth of described vibrosieve by a chain mat machine, mud is transported in vibrosieve by chain mat machine after discharging from sewage sludge feed bucket, being sifted out from mud by impurity particle in mud, the mud after vibrosieve is screened enters the discharging opening of described vibrosieve；

(2) Mud dosing drying steps: the discharging opening of described vibrosieve connects the receiving hopper of described biaxial rneader by a drag conveyor, the mud after vibrosieve is screened enters the receiving hopper of a biaxial rneader by drag conveyor；The switch of the feed valve of regulating agent pot bottom, dry medicament is transferred to conveying worm, deliver to the receiving hopper of biaxial rneader, mud and Calx with conveying worm and simultaneously enter two grades of blade forced mixer stirrings of twin shaft, obtain the mixture of mud and Calx；

(3) Mud paving shines drying steps: by step (2) The mixture of gained mud and Calx uniform spreading in Factory Building 20~60cm Thick earth conversion zone, reacting drying 12~36 Hour, treat that earth moisture content is down to 40% Following dry mud, is then transferred to be dried mud screening grinding system；

(4) It is dried mud screening grinding steps: by step (3) Gained is dried mud and is delivered to drag conveyor lifting, the mixture of mud and Calx is delivered to underpants type feeding-distribution device, by a kind of rhyme scheme in Chinese operas serving as the prelude to a complete score for voices in adjusting means, the mixture of mud and Calx is divided into two, sieving subsequently into rotary screen, siftage is product, enters rotary screen lower scraping plate conveyer；Oversize is delivered to bar type grinder by drag conveyor or belt conveyor, after bar type grinder is pulverized, enters drag conveyor under grinder；

(5) Be dried mud transhipment step: dry mud is delivered to the feeding mouth of bucket elevator by drag conveyor, and then dry mud be delivered to the feeding mouth of electric three passes material distributing valve by fighter's elevator, then dry mud is distributed as required to feed bin or / And close type leather belt machine.

In technique scheme, mud with the weight ratio of Calx is 10:2~5 , and can be according to the moisture content of mud and need the degree being dried go the weight ratio of mud and Calx, time of stirring reaction is, and pilling up time etc..Preferably in technical scheme, the THICKNESS CONTROL of mud mixture is existed by mud mixture forklift in heaps 20~60cm , reacting drying 24 Hour, mud mixture can be tedded by dry run, and the moisture content of mud mixture is down to about the most at last 40% , obtain dried mud mixture.

Due to the application of technique scheme, compared to the prior art this utility model has the advantage that

1. Dry mud described in the utility model screening grinding system automaticity is high, and material screening, the distribution link integration such as material, grinding material complete, and each link working condition can regulate and control by precision, safe and reliable, automaticity is high, has therefore saved manpower, the most safer the most more economical；And this utility model is carried out in being arranged on airtight Factory Building, and supporting tail gas treatment device, therefore friendly to surrounding enviroment.

This utility model is applicable to storage mud and carries out minimizing, innoxious, disposal of resources, is not only and implements Chinese Ministry of Environmental Protection, the Important Action that rectification requires is correlated with in province's environmental protection Room, is also the environmental risk thus brought of thorough elimination, Optimizing City integrated environment.

Accompanying drawing explanation

Figure 1 Sewage sludge feed for embodiment one is sieved and drying process schematic diagram.

Figure 2 Grinding process schematic diagram is sieved for the dry mud in embodiment one.

Figure 3 Schematic flow sheet is transported for the dry mud in embodiment one.

Figure 4 For the sewage sludge feed screening system in embodiment one.

Figure 5 For embodiment one is used for stirring the agitating device schematic diagram of mud and dry medicament.

Figure 6 For the medicament feed arrangement schematic diagram in embodiment one.

Figure 7 Schematic diagram for the medicament feed arrangement in embodiment one Yu agitating device cooperating.

Figure 8 Grinding system schematic diagram is sieved for the dry mud in embodiment one.

Figure 9 Schematic diagram for the dry mud movement system in embodiment one.

Wherein: 1. Feed bin； 2. Electric gate valve； 3. Chain mat machine； 4. Electric vibrating sieves； 5. Hopper 1 ； 6. One-level biaxial rneader； 7. Oversize outward transport belt feeder； 8. Drag conveyor 1 ； 9. Hopper 2 ； 10. Hopper 3 ； 11. Two grades of twin-shaft mixers； 12. Drag conveyor 2 ； 13. Pharmacy jar； 14. Feed valve； 15. Conveying worm 1 ； 16. Platform； 17. Conveying worm 2 ； 18. Drag conveyor 3 ； 18. Charging belt machine； 19. Drag conveyor 4 ； 20. Rotary screen； 21. Underpants type tripper； 22. Bar type grinder； 23. Drag conveyor 5 ； 24. Bucket elevator； 25. Electric material distributing valve； 26. Feed bin； 27. Electro-hydraulic gate valve； 28. Closing is gone on board belt feeder； 29. Close elephant trunk.

Detailed description of the invention

The utility model is described in further detail with embodiment below in conjunction with the accompanying drawings.

Embodiment one, such as figure 8 Shown in, a kind of mud that is dried sieves grinding system, and described dry mud screening plant includes: a drag conveyor 19 , a underpants type style three-way distributor 20 , two rotary screens 20 , a charging belt machine 18 , a bar type grinder 22 ；Described charging belt machine 18 Tail end under described bar type grinder is set 22 .Described dry mud screening grinding system also includes a conveying worm 23 , and described conveying worm 23 Feeding mouth and described rotary screen 20 , bar type grinder 22 Discharging opening be connected.Described drag conveyor 19 One end be provided with material inlet, described drag conveyor 19 Tail end be emptying point, and described drag conveyor 19 Tail end and described underpants type style three-way distributor 20 Material inlet be connected.In order to the dry mud that receives through dried, (moisture content can regulate described material inlet according to demand, and general moisture content is 40% Below), then drag conveyor 19 Along the direction tilted upward, dry mud is delivered to discharging at the material inlet of underpants type tripper.Described underpants type style three-way distributor 21 Two material outlets under be respectively equipped with a rotary screen 20 .Described underpants type style three-way distributor 21 There is valve function, the circulation of material can be controlled, i.e. can control to rotary screen 20 Fill process.Described rotary screen is mainly made up of motor, reductor, drum apparatus, frame, sealing lid, charging aperture, discharging opening and discharge gate；And described rotary screen 20 Discharge gate under described charging belt machine is set 18 , described charging belt machine 18 Tail end be emptying point.After material enters drum apparatus, inclination and rotation due to drum apparatus, making the materials overturning on compass screen surface and rolling, make the qualified material (undersize) discharging opening bottom cylinder rear end discharge, underproof material (oversize) is discharged through the discharge gate of cylinder afterbody.

Qualified dry mud after screened grinding is by conveying worm 23 It is delivered to next stage system, is i.e. dried mud movement system.

Such as figure 9 Shown in, a kind of dry mud transportation system, including: a bucket elevator 24 , an electric three passes material distributing valve 25 , a feed bin 26 With a close type leather belt machine 28 ；Described electric three passes material distributing valve sets 25 There are a feeding mouth and two discharging openings, and described electric three passes material distributing valve 25 Feeding mouth be arranged at described fighter's elevator 24 Emptying point, described electric three passes material distributing valve 25 Two discharging openings respectively with described feed bin 26 Feeding mouth, close type leather belt machine 28 Feeding mouth be connected.Described feed bin 26 Bottom be provided with electro-hydraulic gate valve 27 .The go on board tail end of belt feeder of described closing is provided with a closing elephant trunk 29 。

Above-mentioned dry mud screening system, it is dried mud transportation system, can coordinate with sewage sludge feed screening system, mud dosing drying system with volume and form one sludge dewatering dried system.

Such as figure 4 Shown in, one is set on the sewage sludge feed screening system in airtight Factory Building, and airtight factory roof is transparent plane skylight, and vehicle discharge zone uses two storied gate design, and Factory Building designs for tiny structure, is configured with tail gas treatment device.Ensure that mud gas in Factory Building when dehydrate will not leak and affect surrounding enviroment.Described sewage sludge feed system includes: a sewage sludge feed bucket 1 , a push-pull valve 2 , a chain mat machine 3 , a vibrosieve 4 , a drag conveyor 8 ；Described sewage sludge feed bucket is a steel feed bin, topples over, for receiving haulage vehicle, the mud got off；Described push-pull valve is an electric gate valve.Described sewage sludge feed system also includes: an oversize outward transport belt feeder 7 , a hopper 9 ；Described outward transport belt feeder 7 , hopper 9 Sieve with electric vibrating 4 Coordinating, mud or rubbish that granule is big are vibrated sieve 4 Stay on sieve then these oversizes to be transferred to transport outward belt feeder 7 Transporting, the suitable mud of granule enters hopper after vibrosieve 9 , then by controlling hopper 9 The opening and closing of outlet, mud is transferred to and hopper 9 The drag conveyor coordinated 8 Feeding port.Drag conveyor 8 Mud is sent into next stage system, i.e. sludge dry system again.

Such as figure 5 , figure 6 , figure 7 Shown in, the mud dosing drying system that is set in airtight Factory Building, including: an agitating device, a medicament feed arrangement, wherein, described agitating device includes: one-level blender 6 , a scrapper conveyor 12 , secondary blender 11 ；Described medicament feed arrangement includes: at least one pharmacy jar 13 , each pharmacy jar 13 Bottom be provided with a feed valve 14 , at least one conveying worm 15 , 17 .Preferably in technical scheme, platform is located at by above-mentioned medicament feed arrangement 16 On.By controlling pharmacy jar 13 The feed valve of bottom 14 Opening and closing, dry medicament is thrown to conveying worm 15 In, use one-level conveying worm 15 With deuterostrophies conveyer 17 Coordinate and dry medicament is delivered to blender 6 In.Two kinds of materials (mud and dry medicament Calx) simultaneously enter blender 6 Interior stirring, through one-level blender 6 Stirring after, then pass through scrapper conveyor 12 Effect under will stirring after mixtures of materials be delivered to secondary blender 11 Stir more fully.Described blender 6 、 12 For two grades of blade forced mixers of twin shaft.In order to preferably ted the mud being mixed with Calx, promote dry run, stir in heaps after material forklift uniform spreading in Factory Building 20-60cm Thick earth conversion zone, reacting drying 24 Hour, tedding in conjunction with tractor, earth moisture content is down to about 40% , then it is delivered to next system with forklift, is i.e. dried mud screening grinding system.

Therefore, present embodiment discloses a kind of sludge dewatering dried system, including: sewage sludge feed screening system, mud dosing drying system, dry mud screening grinding system and dry mud movement system.

Such as figure 1 、 2 、 3 Shown in, utilize above-mentioned sludge dewatering dried system to process moisture content 70% The method of above mud comprises the following steps:

(1) Sewage sludge feed screening step: the haulage vehicle loading mud is opened to steel-structure factory building two storied gate discharge zone, open in turn through two storied gate, mud is poured in sewage sludge feed bucket by haulage vehicle, the discharging opening of described sewage sludge feed bucket is provided with push-pull valve, after mud enters sewage sludge feed bucket, open push-pull valve and mud can be discharged from sewage sludge feed bucket；The discharging opening of described sewage sludge feed bucket connects the feeding mouth of described vibrosieve by a chain mat machine, mud is transported in vibrosieve by chain mat machine after discharging from sewage sludge feed bucket, being sifted out from mud by impurity particle in mud, the mud after vibrosieve is screened enters the discharging opening of described vibrosieve；

(2) Mud dosing drying steps: the discharging opening of described vibrosieve connects the receiving hopper of described biaxial rneader by a drag conveyor, the mud after vibrosieve is screened enters the receiving hopper of a biaxial rneader by drag conveyor；The switch of the feed valve of regulating agent pot bottom, dry medicament is transferred to conveying worm, deliver to the receiving hopper of biaxial rneader, mud and Calx with conveying worm and simultaneously enter two grades of blade forced mixer stirrings of twin shaft, obtain the mixture of mud and Calx；

(3) Mud paving shines drying steps: by step (2) The mixture of gained mud and Calx uniform spreading in Factory Building 20~60cm Thick earth conversion zone, reacting drying 12~36 Hour, treat that earth moisture content is down to 40% Following dry mud, is then transferred to be dried mud screening grinding system；

(4) It is dried mud screening grinding steps: by step (3) Gained is dried mud and is delivered to drag conveyor lifting, the mixture of mud and Calx is delivered to underpants type feeding-distribution device, by a kind of rhyme scheme in Chinese operas serving as the prelude to a complete score for voices in adjusting means, the mixture of mud and Calx is divided into two, sieving subsequently into rotary screen, siftage is product, enters rotary screen lower scraping plate conveyer；Oversize is delivered to bar type grinder by drag conveyor or belt conveyor, after bar type grinder is pulverized, enters drag conveyor under grinder；

(5) Be dried mud transhipment step: dry mud is delivered to the feeding mouth of bucket elevator by drag conveyor, and then dry mud be delivered to the feeding mouth of electric three passes material distributing valve by fighter's elevator, then dry mud is distributed as required to feed bin or / And close type leather belt machine, a feed bin 26 With a close type leather belt machine 28 ；Described electric three passes material distributing valve sets 25 There are a feeding mouth and two discharging openings, and described electric three passes material distributing valve 25 Feeding mouth be arranged at described fighter's elevator 24 Emptying point, described electric three passes material distributing valve 25 Two discharging openings respectively with described feed bin 26 Feeding mouth, close type leather belt machine 28 Feeding mouth be connected.Described feed bin 26 Bottom be provided with electro-hydraulic gate valve 27 .The go on board tail end of belt feeder of described closing is provided with a closing elephant trunk 29 。

Embodiment two, the sludge dewatering dried system as described in embodiment one, compared with embodiment one, the most supporting tail gas treatment device of embodiment two, it is ensured that mud gas in Factory Building when dehydrate will not leak and affect surrounding enviroment.Described tail gas treatment device includes: be laid in the collection and confinement of gases pipeline of Factory Building headroom, blower fan, spray scrubber, low temperature plasma gas purifier.

After testing, the waste gas components produced in sludge dewatering dry run includes: stench, ammonia, hydrogen sulfide, NMHC, water vapour etc..

The collection and confinement of gases pipeline being laid in Factory Building headroom is four road main collection conduit compositions, and main pipeline designs arm, arm tip designs inlet scoop, it is achieved the uniform collection of waste gas in Factory Building.Described collection and confinement of gases pipeline coordinates formation negative pressure in airtight Factory Building with air-introduced machine.

Containing dust in waste gas, collecting pipe line length selects mesohigh class FRP Corrosion Protection of Fiber Reinforced Plastics blower fan, it is considered to suitably reduce rate of ventilation night, blower fan is equipped with converter.Major parameter is as follows: flow 20357m3/h , total head 2590Pa , rotating speed 1270r/min , power: 30kw , design house steward's flow velocity 12 Rice / Second, caliber : Φ 750 × 6mm , pipeline all uses PP Material.Every road collecting pipe design air flow regulation valve.

Inorganization gas through airtight negative pressure collect after in pipeline delivers into spray scrubber, the washing of liquor natrii hypochloritis's circulated sprinkling is used in spray scrubber, liquor natrii hypochloritis has strong oxidizing property, the various stink substances in energy oxidation Decomposition waste gas, thus reduces the odor unit of discharge gas.Waste gas after preliminary treatment enters the low temperature plasma gas purifier of two-stage tandem, initially enter " low temperature plasma " and purify reaction warehouse, in this region, three processes of effect due to high energy particle are carried out simultaneously: 1. make a large amount of water fog particle and aerosol become positively charged lotus, be attracted under negative plate action of gravity gutter down be collected after discharge.2. make in ionized state odor molecules be stimulated ionize after molecular scission.3. while, the water in air and oxygen also can produce under high energy electron bombards OH , active oxygen O , the oxidizing species such as ozone, these oxidizing species can react with odor molecules so that it is decomposes, thus promotes elimination of off flavor.Aiutage qualified discharge is entered through air-introduced machine through low-temperature plasma purified gas.

Described spray scrubber is made up of tower body, circulating pump, nonchoking nozzle, cyclic water tank etc., carry out integrated apparatus, process tolerance up to 20000 m3/h , empty tower gas velocity up to 1.1m/s , spray progression is two grades, and the parameter of circulating pump is: lift H=28m , flow Q=60m3/h , power G=7.5KW 。

Owing to the gas temperature of native system discharge is room temperature, it is considered to the requirement for anticorrosion of discharge drum, discharge drum uses PP Material or glass steel material.Discharge drum diameter 600mm , height of release 15m 。

Claims (6)

1. a dry mud screening grinding system, it is characterised in that including: a drag conveyor, a underpants type style three-way distributor, two rotary screens, a charging belt machine, a bar type grinder；The emptying point of described drag conveyor is located at above the material inlet of described underpants type style three-way distributor, two material outlets of described underpants type style three-way distributor material inlet with two rotary screens respectively is equipped with, the oversize discharge gate of described rotary screen is equipped with the feeding port of charging belt machine, arranges the material inlet of bar type grinder below the discharge zone of described charging belt machine.

It is dried mud screening grinding system the most according to claim 1, it is characterized in that, one end of described drag conveyor is provided with material inlet, and the tail end of described drag conveyor is emptying point, and the emptying point of described drag conveyor coordinates with the material inlet of described underpants type style three-way distributor.

It is dried mud screening grinding system the most according to claim 1, it is characterised in that under two material outlets of described underpants type style three-way distributor, be respectively equipped with a rotary screen；Described underpants type style three-way distributor has valve function.

It is dried mud screening grinding system the most according to claim 1, it is characterised in that described rotary screen is mainly made up of motor, reductor, drum apparatus, frame, sealing lid, charging aperture, discharging opening and discharge gate；And arranging described charging belt machine under the discharge gate of described rotary screen, the tail end of described charging belt machine is emptying point；The material inlet of bar type grinder is set below the emptying point of described charging belt machine.

It is dried mud screening grinding system the most according to claim 1, it is characterised in that described dry mud screening grinding system also includes a conveying worm, and the feeding mouth of described conveying worm is arranged at below the discharging opening of described bar type grinder.

It is dried mud screening grinding system the most according to claim 5, it is characterized in that, described dry mud screening grinding system also includes that one second drag conveyor, described second drag conveyor are arranged at the discharging opening of described rotary screen and the lower section of the discharging opening of described conveying worm.