Summary of the invention
Based on the problems referred to above, the object of the present invention is to provide a kind of waste diatomite treatment system and treatment process, this treatment system and treatment process can either solve the environmental pollution that waste diatomite causes, and can realize again the recycling of waste diatomite, turn waste into wealth.
The present invention solves the technical scheme that its technical problem takes: a kind of waste diatomite treatment system, comprise diatomite apparatus for temporary storage and dehydration equipment, be communicated with by pipe-line system between diatomite apparatus for temporary storage and dehydration equipment, the pipe-line system between diatomite apparatus for temporary storage and dehydration equipment is provided with feeding engine; Dehydration equipment is provided with discharging opening and liquid outlet, and liquid outlet is connected to sewage network.
A kind of selectable technical scheme is: described diatomite apparatus for temporary storage is mud pit, and mud pit bottom part is furnished with multiple air jet pipe, and described air jet pipe is all communicated to compressed air piping, and the outlet bottom mud pit connects described feeding engine.Arrange air jet pipe bottom mud pit, air jet pipe ejection compressed air, can play sludge proof effect.
Another kind of selectable technical scheme is: described diatomite apparatus for temporary storage is temporary storage tank, and the charging aperture of temporary storage tank connects diatomite filter, and the discharging opening of temporary storage tank connects feeding engine.
Block for avoiding the discharging opening bottom temporary storage tank, further technical scheme is: the bottom of described temporary storage tank is provided with the tapering of back taper, the outside in tapering is provided with anti-clogging flusher, described anti-clogging flusher comprises the flushing endless tube of annular, washing ring pipe ring is outside tapering and be connected by support with between temporary storage tank, rinses endless tube and is connected with feed pipe; Rinse on endless tube and be evenly distributed with flushing arm, rinse arm one end and be connected with flushing endless tube, the other end is connected with the tapering of temporary storage tank; The top of temporary storage tank inside is provided with rotating wash bowl.Rotating wash bowl can keep cleaning in tank.
For reducing the moisture content of waste diatomite further, be convenient to preservation and the recycling of waste diatomite, further technical scheme is: the discharging opening of described dehydration equipment connects drying plant by belt conveyor, the damp exit of drying plant connects dust arrester, the discharging opening of drying plant passes through conveying worm and connects packaging facilities, and packaging facilities is with finished conveying device.
For realizing optimum efficiency, further technical scheme is: described dehydration equipment is membrane pressure filter, and described feeding engine is screw pump.The structure of membrane pressure filter is comparatively simple, processing ease, and automatic control level is high, stable performance, easy maintenance, and filtered driving force is large, and gained filter cake moisture content is low, is applicable to the processed of waste diatomite.
For realizing optimum efficiency, further technical scheme is: described drying plant is Pipebundledrier, and described dust arrester is cyclone dust collectors, and described packaging facilities is weighing sack-filling machine, and described finished conveying device is belt feeder.
The technical scheme of technical solution problem of the present invention also comprises: a kind of waste diatomite treatment process, comprises the following steps:
1) carry, the compressed air of 0.2 ~ 0.5MPa is injected the closed shell of diatomite filter, waste diatomite mud is discharged in diatomite filtration body, is delivered to temporary storage tank; Pneumatic convey mode has advantage that is airtight, health, and owing to not using feeding engine, thus reduce rate of breakdown;
2) temporary, the waste diatomite mud that diatomite filter interval is discharged temporarily is stored in temporary storage tank, and contained by waste diatomite, the weight of solid accounts for 10% of gross weight herein;
3) dewater, remove the portion of water in waste diatomite mud by the mode of mechanical dehydration, waste diatomite mud is converted into filter cake, contained by filter cake, the weight of solid accounts for 50% ~ 75% of gross weight;
4) dry, dried by filter cake, adopt dust arrester dedusting in drying course by drying plant, form powder product, contained by powder product, the weight of solid accounts for 85% of gross weight;
5) pack, the powder product after oven dry delivers to packaging facilities by feed screw, by packaging facilities by powder product packing.
In order to reduce the moisture content of filter cake further, further technical scheme is: in described dehydration, in waste diatomite mud, add flocculant.
Consider from the aspect such as input cost and result of use, preferred technical scheme is: described flocculant is polyacrylamide, and the weight ratio of the polyacrylamide added and waste diatomite mud is 1:10000.
The invention has the beneficial effects as follows:
1, cost is low, power consumption is few.Dehydration equipment adopts membrane pressure filter, and the structure of membrane pressure filter is comparatively simple, processing ease, and automatic control level is high, stable performance, easy maintenance, and filtered driving force is large, and gained filter cake moisture content is low; Drying plant adopts Pipebundledrier, and in various drying equipment, the power consumption of Pipebundledrier is minimum, hear rate is low, and often evaporating 1kg water only needs 1.0 ~ 1.2kg steam, is 50% of boiling type drying machine, be 25% of fluid bed, structure is simple, stable performance, equipment is durable.
2, take into full account environmental requirement, in drying plant, access dust arrester, ensure that, not containing dust in the moisture of discharging, selection cyclone dust collectors, as dust arrester, reach the emptying index of tail gas completely.
3, transform diatomite apparatus for temporary storage, arrange air jet pipe bottom mud pit, air jet pipe ejection compressed air, can play sludge proof effect; Be provided with tapering bottom diatomite temporary storage tank, anti-clogging flusher be installed, and at abhiseca, rotating wash bowl is installed, have casting smooth and easy, do not block up, the characteristic such as not pollute.
4, achieve the recycling of waste diatomite, waste diatomite moisture content is after treatment low, can preserve for a long time, can be used as feed addictive, composite fertilizer material, construction material etc., achieves and turn waste into wealth.
Detailed description of the invention
Below in conjunction with Figure of description and specific embodiment, the invention will be further described:
Embodiment one:
As shown in Figure 1, a kind of waste diatomite treatment system, comprises diatomite apparatus for temporary storage and dehydration equipment, is communicated with between diatomite apparatus for temporary storage and dehydration equipment by pipe-line system, and the pipe-line system between diatomite apparatus for temporary storage and dehydration equipment is provided with feeding engine; Dehydration equipment is provided with discharging opening and liquid outlet, and liquid outlet is connected to sewage network.
Described diatomite apparatus for temporary storage is mud pit, and mud pit bottom part is furnished with multiple air jet pipe, and described air jet pipe is all communicated to compressed air piping, and the outlet bottom mud pit connects feeding engine.Arrange air jet pipe bottom mud pit, air jet pipe ejection compressed air, can play sludge proof effect.
Described dehydration equipment is membrane pressure filter, and described feeding engine is screw pump.The structure of membrane pressure filter is comparatively simple, processing ease, and automatic control level is high, stable performance, easy maintenance, and filtered driving force is large, and gained filter cake moisture content is low, is applicable to the processed of waste diatomite.Feeding engine adopts common screw pump to meet the demands, and can select G30_1 screw pump, lift 60 meters, and flow is 5m
3/ h, outlet pressure is 0.6MPa.
The technological process of the present embodiment process waste diatomite is:
1) temporary, the waste diatomite mud that brewery produces temporarily is stored in mud pit, and by the air jet pipe ejection compressed air bottom mud pit in temporary process, prevent precipitation, contained by waste diatomite, the weight of solid accounts for 10% of gross weight herein;
2) dewater, waste diatomite mud is delivered to membrane pressure filter by feeding engine and carries out mechanical dehydration, polyacrylamide is added as flocculant in dehydration, the weight ratio of the polyacrylamide added and waste diatomite mud is 1:10000, flocculant can reduce the moisture in filter cake, contained by gained filter cake, the weight of solid can account for 75% of gross weight, and gained filtrate directly can enter sewerage through sewage network.
The filter cake that the present embodiment obtains, water content about 20%, substantially prolongs the holding time compared with former waste diatomite mud, can be used for the following aspects:
Feed addictive: be mainly used in the bird feeds such as chicken and duck;
Composite fertilizer material: major function is chesson, strengthens fertilizer efficiency, extends fertilizer usefulness;
Construction material: make the excellent raw material of haydite, make for modern architecture brick, more wide is be applicable to the ep-type materials such as finishing, decoration.
Whole system presses 0.3t/h (siccative) design, total installation of generating capacity 20kW, floor space about 50 ㎡.System adopts and automatically controls, and a people can complete all operations.
If need packaging, then can supporting device of full automatic packaging, often wrap 25kg ~ 50kg, be convenient to store and transport.
Embodiment two:
As shown in Figure 2, the difference of the present embodiment and embodiment one is: described diatomite apparatus for temporary storage is temporary storage tank 1, and the charging aperture of temporary storage tank 1 connects diatomite filter, and the discharging opening of temporary storage tank 1 connects feeding engine.
As Fig. 3, Fig. 4, the bottom of described temporary storage tank 1 is provided with the tapering 2 of back taper, for avoiding blocking, the outside in tapering 2 is provided with anti-clogging flusher, described anti-clogging flusher comprises the flushing endless tube 3 of annular, rinse endless tube 3 to be looped around outside tapering 2 and to be connected by support 5 with between temporary storage tank 1, rinse endless tube 3 and be connected with feed pipe 6; Rinse on endless tube 3 and be evenly distributed with flushing arm 4, rinse arm 4 one end and be connected with flushing endless tube 3, the other end is connected with the tapering 2 of temporary storage tank 1; The top of temporary storage tank 1 inside is provided with rotating wash bowl.Rotating wash bowl can keep clean in tank, increases the temporary storage tank after anti-clogging flusher and rotating wash bowl, have casting smooth and easy, do not block up, the characteristic such as not pollute.
For reducing the moisture content of product further, the discharging opening of described dehydration equipment connects drying plant by belt conveyor; In order to ensure that the damp exit of drying plant connects dust arrester not containing dust in the moisture of discharging; The discharging opening of drying plant connects packaging facilities by conveying worm, and packaging facilities is with finished conveying device.
Described drying plant is Pipebundledrier, and in various drying equipment, the power consumption of Pipebundledrier is minimum, hear rate is low, and often evaporating 1kg water only needs 1.0 ~ 1.2kg steam, is 50% of boiling type drying machine, be 25% of fluid bed, structure is simple, stable performance, equipment is durable.
Described dust arrester is cyclone dust collectors, makes the discharge of moisture reach the emptying index of tail gas completely, meets environmental requirement.
Described packaging facilities is weighing sack-filling machine, can select auto-manual system weighing sack-filling machine, according to the weight of setting, packed by human assistance, sack closer is closely connected with it, adopts Nylon Bag packaging, ability 1 ~ 3 bag/minute, every bag of weight 10 ~ 50kg, described finished conveying device is belt feeder.
As Fig. 5, the technological process of the present embodiment process waste diatomite is:
1) carry, the compressed air of 0.2 ~ 0.5MPa is injected the closed shell of diatomite filter, waste diatomite mud is discharged in diatomite filtration body, is delivered to temporary storage tank; Pneumatic convey mode has advantage that is airtight, health, and owing to not using feeding engine, thus reduce rate of breakdown;
2) temporary, the waste diatomite mud that diatomite filter interval is discharged temporarily is stored in temporary storage tank, and contained by waste diatomite, the weight of solid accounts for 10% of gross weight herein;
3) dewater, remove the portion of water in waste diatomite mud by the mode of membrane pressure filter mechanical dehydration, waste diatomite mud is converted into filter cake, contained by filter cake, the weight of solid accounts for 50% of gross weight;
4) dry, dried by filter cake by Pipebundledrier, form powder product, the weight of solid accounts for 85% of gross weight contained by the powder product that Pipebundledrier discharging opening is discharged, and moisture is discharged after cyclone dust collectors dedusting;
5) pack, the powder product after oven dry delivers to weighing sack-filling machine top hopper, by weighing sack-filling machine by powder product packing by feed screw.
The powder product that the present embodiment obtains, water content about 15 ~ 20%, can preserve for a long time, can be used for the following aspects:
Feed addictive: be mainly used in the bird feeds such as chicken and duck;
Composite fertilizer material: major function is chesson, strengthens fertilizer efficiency, extends fertilizer usefulness;
Construction material: make the excellent raw material of haydite, make for modern architecture brick, more wide is be applicable to the ep-type materials such as finishing, decoration.
Whole system presses 0.3t/h (siccative) design, and total installation of generating capacity 45kW, floor space about 100 ㎡, the steam consumption processing one ton of finished product (siccative) is 0.6 ~ 1.0 ton.
System adopts automatically or semiautomatic control, only needs two people to complete all operations.
The present invention realizes effective utilization of waste diatomite, solving on the basis of a pollution problem for modern brewery, simultaneously for enterprise creates benefit.More valuable, along with effective utilization of this last pollutant, show the managerial skills of enterprise, make brewery really become the factory of environmental protection, clean factory, modern factory.
The above, just explain through diagrams principles more of the present invention, this description be not the present invention to be confined to shown in described concrete structure and the scope of application, therefore every corresponding modify of being likely utilized and equivalent, all belong to the scope of the claims that the present invention applies for.
Except technical characteristic described in description, all the other technical characteristics all belong to those skilled in the art's known technology.