CN104692611A - Waste catalyst mud water dehydration treatment equipment and waste catalyst mud water dehydration treatment method - Google Patents
Waste catalyst mud water dehydration treatment equipment and waste catalyst mud water dehydration treatment method Download PDFInfo
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- CN104692611A CN104692611A CN201510081371.1A CN201510081371A CN104692611A CN 104692611 A CN104692611 A CN 104692611A CN 201510081371 A CN201510081371 A CN 201510081371A CN 104692611 A CN104692611 A CN 104692611A
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- spent catalyst
- flocculation
- complexing agent
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- tempering tank
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/12—Treatment of sludge; Devices therefor by de-watering, drying or thickening
- C02F11/14—Treatment of sludge; Devices therefor by de-watering, drying or thickening with addition of chemical agents
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/12—Treatment of sludge; Devices therefor by de-watering, drying or thickening
- C02F11/121—Treatment of sludge; Devices therefor by de-watering, drying or thickening by mechanical de-watering
- C02F11/125—Treatment of sludge; Devices therefor by de-watering, drying or thickening by mechanical de-watering using screw filters
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- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Mechanical Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Treatment Of Sludge (AREA)
- Separation Of Suspended Particles By Flocculating Agents (AREA)
Abstract
The invention discloses waste catalyst mud water dehydration treatment equipment and a waste catalyst mud water dehydration treatment method, and belongs to the technical field of solid-liquid separation in environmental engineering. The equipment comprises a sludge conveyer device, a complexing agent feeding device, a flocculating agent feeding device and a coiled dehydration device. The technique method comprises the following steps: conveying waste catalyst mud water; adding a complexing agent and a flocculating agent; and carrying out mixing reaction, and coiled dehydration. The moisture content of the waste catalyst mud water can be reduced to about 50% from 99.5% once by only adding the compounded medicine and combining with a coiled dehydration manner. According to the technique and the equipment, deep dehydration is carried out on the waste catalyst mud water; the treatment cost of the sewage is reduced; and a good way is provided for reduction treatment of a waste catalyst. Compared with an existing dehydration technology of combining filtration with a vacuum belt dehydrator, the technology is not easy to block, small in floor area, simple to operate, high in automatic degree and low in operation cost, and does not generate secondary pollution.
Description
Technical field
The present invention relates to method and the treatment facility thereof of the dehydration of a kind of spent catalyst muddy water, specifically relate to a kind of spent catalyst Slurry treatment method combined of effective complex medicine and folded spiral shell being dewatered.
Background technology
The catalytic cracking unit of refinery is one of main processing unit (plant) of heavy oil upgrading, catalyst consumption displacement is one of main operating features of this device, fresh normal catalyst consumption is at 0.6-1.4kg/t raw material, and the catalyzer of 0.3-0.6 kg/t raw material is run by chimney to damage in air, along with national environmental protection regulation is more and more stricter, catalytic unit smoke stack emission index S O2, NOX and dust content are strictly controlled, both at home and abroad all in employing flue gas desulfurization and denitrification technology, to meet emission request, at present, catalytic unit adopts Wet Flue Gas Desulfurization Technique substantially, and when adopting wet desulphurization, chimney dust content reaches 50mg/m
3below, the catalyzer that washing and recycling is got off enters sink drainage, and after settling pond precipitation concentration, water ratio is more than 99%, in flow state, and containing fine catalyst in sewage, adopt conventional muddy water dehydration technique, such as centrifuge dehydration technology, is difficult to further dehydration, reduces water ratio.This just brings very large pressure to the disposal of follow-up muddy water, brings negative impact to environmental protection.
Conventional Slurry treatment technology generally comprises the concentrated of muddy water, dehydration and drying, and spent catalyst muddy water is also in flow state after concentrated, and volume is very large, is difficult to dispose, and is unfavorable for transporting and disposing, needs further muddy water to dewater, reduce the processing cost of muddy water.At present, the dewatering that countries in the world generally adopt is mechanical dehydration, can comprise vacuum filtration mud by dewatering Principle, press filtration mud, centrifuge dehydration and screw extruding dehydration.Wherein, in screw extruding, folded spiral shell dehydration equipment is a kind of novel appts, and whole device processes cost is low, and level of automation is high, and dehydrating effect is good.
Summary of the invention
For prior art process spent catalyst muddy water Shortcomings, the present invention proposes a kind of spent catalyst muddy water dewatering processing device and method, chemical complexing enhanced coagulation is combined with folded spiral shell dehydration technique, solves existing spent catalyst Slurry treatment poor effect, the problem that cost is high.
Technical scheme of the present invention is achieved in that
A kind of spent catalyst muddy water dewatering processing device, comprise sludge conveyer, complexing agent throwing device, flocculating agent feeding device and folded spiral shell dewatering unit, described complexing agent throwing device comprises complexing agent Preparation tank and complexing agent dosing pump, described flocculating agent feeding device comprises flocculation agent and automatically steeps medicine device and flocculation agent dosing pump, described folded spiral shell dewatering unit comprises flocculation tempering tank, whipping appts, delivery device and folded spiral shell owner body, spent catalyst muddy water is added to described flocculation tempering tank by described sludge conveyer, the complexing agent of compound screening in described complexing agent Preparation tank is added to described flocculation tempering tank or is added to described sludge conveyer by described complexing agent dosing pump, flocculation agent is steeped the flocculant concentration prepared in medicine device to described flocculation tempering tank by described flocculation agent dosing pump automatically, described whipping appts is to the spent catalyst muddy water be added in described flocculation tempering tank, complexing agent, flocculation agent carries out being uniformly mixed the large alumen ustum of formation, the large alumen ustum formed is delivered in described folded spiral shell owner body by described delivery device, described folded spiral shell owner body discharges mud cake and filtrate to after described large alumen ustum thickening process.
As a further improvement on the present invention, described sludge conveyer comprises intermediate agitation groove and sludge delivery pump, after entering the stirring of described intermediate agitation groove from the spent catalyst muddy water bottom waste water settling pond, put into described flocculation tempering tank by described sludge delivery pump.
As a further improvement on the present invention, described complexing agent is added in described intermediate agitation groove by described complexing agent dosing pump, spent catalyst muddy water and complexing agent deliver into described flocculation tempering tank by described sludge delivery pump after tentatively mixing in described intermediate agitation groove.
As a further improvement on the present invention, described sludge conveyer also comprises line mixer, described complexing agent is added in described line mixer by described complexing agent dosing pump, spent catalyst muddy water is after described intermediate agitation groove stirs, be added in described line mixer by described sludge delivery pump, spent catalyst muddy water and complexing agent are delivered to described flocculation tempering tank after tentatively mixing in described line mixer.
As a further improvement on the present invention, described whipping appts is double-deck or the stirring of multilayer paddle.
As a further improvement on the present invention, the liquidometer controlling described flocculation agent dosing pump and sludge delivery pump keying is provided with in described flocculation tempering tank.
A kind of spent catalyst Slurry treatment method, comprises the steps:
A, spent catalyst muddy water is delivered to line mixer by sludge delivery pump, meanwhile, the complexing agent of compound screening puts into line mixer by complexing agent dosing pump;
B, spent catalyst muddy water and complexing agent enter into flocculation tempering tank in line mixer after initial reaction, meanwhile, flocculation agent is steeped the flocculant concentration prepared in medicine device to flocculation tempering tank by flocculation agent dosing pump automatically;
C, whipping appts are uniformly mixed form large alumen ustum to the spent catalyst muddy water be added in flocculation tempering tank, complexing agent, flocculation agents;
The large alumen ustum of d, formation is transported to after folded spiral shell owner body carries out processed through delivery device discharges mud cake and filtrate.
A kind of spent catalyst Slurry treatment method, comprises the steps:
A, be added in intermediate agitation groove by complexing agent through complexing agent dosing pump, spent catalyst muddy water tentatively mixes in described intermediate agitation groove with complexing agent;
B, spent catalyst muddy water and complexing agent after initial reaction, deliver into described flocculation tempering tank by described sludge delivery pump in intermediate agitation groove; Meanwhile, flocculation agent is steeped the flocculant concentration prepared in medicine device to flocculation tempering tank by flocculation agent dosing pump automatically;
C, whipping appts are uniformly mixed form large alumen ustum to the spent catalyst muddy water be added in flocculation tempering tank, complexing agent, flocculation agents;
The large alumen ustum of d, formation is transported to after folded spiral shell owner body carries out processed through delivery device discharges mud cake and filtrate.
As a further improvement on the present invention, described complexing agent formed by the one of composite raw material or at least two kinds form by certain mass mark is composite, described composite raw material comprises poly-ferric chloride, polymerize aluminum chloride, sodium sulphite, iron(ic) chloride, calcium acetate, calcium chloride and ferric sulfate.
As a further improvement on the present invention, described flocculation agent is a kind of in non-ionic polyacrylamide, cationic polyacrylamide and anionic polyacrylamide.
The invention has the beneficial effects as follows: the invention provides a kind of spent catalyst muddy water dewatering processing device and method, by chemical complexing enhanced coagulation is combined with folded spiral shell dehydration technique, for catalytic cracking unit system for desulfuration and denitration spent catalyst Slurry treatment provides new thinking, there is not easily blocking, do not produce Er the Wu Ran ﹑ floor space little ﹑ Cao Fang of work Bian ﹑ level of automation advantages of higher.Meanwhile, this technique is screened composite by complexing agent, enhanced flocculation effect, and improve the rear solid content of mud cake of spent catalyst muddy water dehydration and the rate of recovery of spent catalyst, whole technical process is simple, compact, stable, safety.This technique can be used for oil refinery waste catalyzer mud-water separation, applied widely, can realize cleanly production and waste minimizing process.
Accompanying drawing explanation
Fig. 1 is the embodiment of the present invention 1 structural representation;
Fig. 2 is the embodiment of the present invention 2 structural representation.
By reference to the accompanying drawings, make the following instructions:
1---sludge conveyer 11---intermediate agitation groove
12---sludge delivery pump 13---line mixer
2---complexing agent throwing device 21---complexing agent Preparation tank
22---complexing agent dosing pump 3---flocculating agent feeding device
31---flocculation agent steeps medicine device 32 automatically---flocculation agent dosing pump
4---folded spiral shell dewatering unit 41---flocculation tempering tank
42---whipping appts 43---delivery device
44---folded spiral shell owner body 441---mud cake relief outlet
442---filtrate relief outlet
Embodiment
For enabling the present invention more become apparent, below in conjunction with accompanying drawing, the specific embodiment of the present invention is described in detail.
Embodiment 1
As shown in Figure 1, a kind of spent catalyst muddy water dewatering processing device, comprise sludge conveyer 1, complexing agent throwing device 2, flocculating agent feeding device 3 and folded spiral shell dewatering unit 4, described complexing agent throwing device comprises complexing agent Preparation tank 21 and complexing agent dosing pump 22, described flocculating agent feeding device comprises flocculation agent and automatically steeps medicine device 31 and flocculation agent dosing pump 32, described folded spiral shell dewatering unit comprises flocculation tempering tank 41, whipping appts 42, delivery device 43 and folded spiral shell owner body 44, described sludge conveyer comprises intermediate agitation groove 11, sludge delivery pump 12 and line mixer 13, described intermediate agitation groove is entered from the spent catalyst muddy water bottom waste water settling pond, after described intermediate agitation groove stirs, be added in described line mixer by described sludge delivery pump, the complexing agent of compound screening in described complexing agent Preparation tank is added in described line mixer by described complexing agent dosing pump, spent catalyst muddy water and complexing agent are delivered to described flocculation tempering tank after tentatively mixing in described line mixer, simultaneously, flocculation agent is steeped the flocculant concentration prepared in medicine device to described flocculation tempering tank by described flocculation agent dosing pump automatically, described whipping appts is uniformly mixed forms large alumen ustum to the spent catalyst muddy water be added in described flocculation tempering tank, complexing agent, flocculation agent, the large alumen ustum formed is delivered in described folded spiral shell owner body by described delivery device, and described folded spiral shell owner body discharges mud cake and filtrate to after described large alumen ustum thickening process.
Preferably, described whipping appts is double-deck or the stirring of multilayer paddle.While ensureing mixed effect, prevent the large alumen ustum of catalyzer from sinking.Optionally, in flocculation tempering tank, whipping appts is double-deck axial flow agitator, for a kind of in paddle, push type, frame, to ensure that heavy spent catalyst muddy water forms alumen ustum and extremely can fold spiral shell owner body by transfer lime smoothly.
Preferably, the liquidometer controlling described flocculation agent dosing pump and sludge delivery pump keying is provided with in described flocculation tempering tank.During embody rule, liquidometer and flocculation agent dosing pump, sludge delivery pump carry out chain, when exceeding chain control barrier line, liquidometer outputs signal to external control system, external control system stops flocculation agent dosing pump and sludge delivery pump, restarts after in flocculation tempering tank, liquid drops to safety line.
A kind of spent catalyst Slurry treatment method, the method application spent catalyst muddy water dewatering processing device realizes spent catalyst Slurry treatment, comprises the steps:
A, spent catalyst muddy water is delivered to line mixer by sludge delivery pump, meanwhile, the complexing agent of compound screening puts into line mixer by complexing agent dosing pump;
B, spent catalyst muddy water and complexing agent enter into flocculation tempering tank in line mixer after initial reaction, meanwhile, flocculation agent is steeped the flocculant concentration prepared in medicine device to flocculation tempering tank by flocculation agent dosing pump automatically;
C, whipping appts are uniformly mixed form large alumen ustum to the spent catalyst muddy water be added in flocculation tempering tank, complexing agent, flocculation agents;
The large alumen ustum of d, formation is transported to after folded spiral shell owner body carries out processed through delivery device discharges mud cake and filtrate.
Preferably, described complexing agent formed by the one of composite raw material or at least two kinds form by certain mass mark is composite, described composite raw material comprises poly-ferric chloride (PFC), polymerize aluminum chloride (PAC), sodium sulphite (Na
2s), iron(ic) chloride (FeCl
3), calcium acetate (Ca (CH
3cOO)
2), calcium chloride (CaCl
2) and ferric sulfate Fe
2(SO
4)
3.
Preferably, described flocculation agent is a kind of in non-ionic polyacrylamide (PAM), cationic polyacrylamide (PAM) and anionic polyacrylamide (PAM).
Preferably, in flocculation tempering tank, whipping appts is by variable frequency control, can regulate according to the concentration of mud, ensures the effect of mixing.
To sum up, as a kind of preferred embodiment, the principle of work of spent catalyst muddy water dewatering processing device of the present invention and processing method thereof is as follows: the spent catalyst muddy water bottom settling pond regularly enters intermediate agitation groove (containing whipping appts), promoted by sludge delivery pump after line mixer, enter flocculation tempering tank, and the complexing agent of compound screening completes throwing in line mixer adds ﹑ mixing process.Like this, mud after complexing agent enhanced coagulation enters flocculation tempering tank, flocculation agent dosing pump automatic feeding flocculation agent, folded spiral shell owner body is entered after stirring the large alumen ustum of formation by the whipping appts in flocculation tempering tank, carry out gravity concentration at the enriching section of folded spiral shell owner body, filtrate is discharged from the filter seam of enriching section; Mud after concentrated is pushed ahead along the screw shaft of folded spiral shell owner body, fully dewaters under various effect of making a concerted effort at dewatering period; Mud cake after dehydration is discharged from mud cake relief outlet 441, and the filtrate of generation comes back to leading portion settling pond, forms closed cycle.
Application example: bottom settling pond water ratio be 99.5% spent catalyst muddy water flow automatically to intermediate agitation groove 11, carried by sludge delivery pump 12, flocculation tempering tank 41 is entered through line mixer 13, simultaneously, the complexing agent of highly efficiency compositional is put in line mixer 13 by complexing agent dosing pump 22, the weight ratio of spent catalyst muddy water and complexing agent is 60:1, spent catalyst muddy water and complexing agent enter the tempering tank 13 that flocculates after tentatively mixing in line mixer, polyacrylamide (PAM) steeps after medicine device 31 prepares in advance as flocculation agent by flocculation agent automatically, flocculation tempering tank 13 is added to by flocculation agent dosing pump 32, stop 5min, fully be uniformly mixed by whipping appts 42, wherein, the weight ratio of spent catalyst muddy water and PAM is 200:1, spent catalyst muddy water after being fully uniformly mixed is delivered in folded spiral shell owner body 44 by delivery device 43 and carries out processed.
Folded spiral shell owner body is prior art, generally include enriching section, dewatering period and spent catalyst muddy water is advanced the screw shaft of dewatering period from enriching section, by the large alumen ustum that mix and blend is formed, carry out gravity concentration at the enriching section of folded spiral shell owner body, filtrate is discharged through filtrate relief outlet 442 after leaching from the filter seam of enriching section; Mud after concentrated is pushed ahead along screw shaft, fully dewaters under various force action; Mud cake after dehydration is discharged from the mud cake relief outlet 441 of folded spiral shell owner body.Preferably, folded spiral shell owner body can comprise 1 ~ 4 screw shaft, is combined together by parallel way.
The moisture percentage in sewage sludge of discharging from the mud cake relief outlet of folded spiral shell owner body, about 50%, namely can realize being that 99.0%-99.9% spent catalyst muddy water is dehydrated into the mud of water ratio at 45%-55% by water ratio by spent catalyst muddy water dewatering processing device of the present invention and processing method thereof.After spent catalyst muddy water processed, can also require to adopt according to difference and burn, mummification is burning disposal again; Press filtration filtrate can enter leading portion settling pond, forms closed cycle, settling pond mud by after airoxidation to sewage farm water-in.
Optionally, the weight ratio of spent catalyst muddy water and complexing agent is 100:1, and the weight ratio of spent catalyst muddy water and PAM is 250:1;
Optionally, settling pond mud by after hypochlorite oxidation process to sewage farm water-in.
Embodiment 2
As shown in Figure 2, a kind of spent catalyst muddy water dewatering processing device, comprise sludge conveyer 1, complexing agent throwing device 2, flocculating agent feeding device 3 and folded spiral shell dewatering unit 4, described complexing agent throwing device comprises complexing agent Preparation tank 21 and complexing agent dosing pump 22, described flocculating agent feeding device comprises flocculation agent and automatically steeps medicine device 31 and flocculation agent dosing pump 32, described folded spiral shell dewatering unit comprises flocculation tempering tank 41, whipping appts 42, delivery device 43 and folded spiral shell owner body 44, described sludge conveyer comprises intermediate agitation groove 11 and sludge delivery pump 12, described intermediate agitation groove is entered from the spent catalyst muddy water bottom settling pond, and the complexing agent of compound screening in complexing agent Preparation tank is added to intermediate agitation groove by complexing agent dosing pump, after spent catalyst muddy water and complexing agent tentatively mix in intermediate agitation groove, described flocculation tempering tank is delivered into by sludge delivery pump, flocculation agent is steeped the flocculant concentration prepared in medicine device to described flocculation tempering tank by flocculation agent dosing pump automatically, described whipping appts is uniformly mixed forms large alumen ustum to the spent catalyst muddy water be added in described flocculation tempering tank, complexing agent, flocculation agent, the large alumen ustum formed is delivered in described folded spiral shell owner body by described delivery device, and described folded spiral shell owner body discharges mud cake and filtrate to after described large alumen ustum thickening process.
Preferably, described whipping appts is double-deck or the stirring of multilayer paddle.While ensureing mixed effect, prevent the large alumen ustum of catalyzer from sinking.
Preferably, the liquidometer controlling described flocculation agent dosing pump and sludge delivery pump keying is provided with in described flocculation tempering tank.During embody rule, liquidometer and flocculation agent dosing pump, sludge delivery pump carry out chain, when exceeding chain control barrier line, liquidometer outputs signal to external control system, external control system stops flocculation agent dosing pump and sludge delivery pump, restarts after in flocculation tempering tank, liquid drops to safety line.
A kind of spent catalyst Slurry treatment method, the method is applied above-mentioned spent catalyst muddy water dewatering processing device and is realized spent catalyst Slurry treatment, comprises the steps:
A, be added in intermediate agitation groove by complexing agent through complexing agent dosing pump, spent catalyst muddy water tentatively mixes in described intermediate agitation groove with complexing agent;
B, spent catalyst muddy water and complexing agent after initial reaction, deliver into described flocculation tempering tank by described sludge delivery pump in intermediate agitation groove; Meanwhile, flocculation agent is steeped the flocculant concentration prepared in medicine device to flocculation tempering tank by flocculation agent dosing pump automatically;
C, whipping appts are uniformly mixed form large alumen ustum to the spent catalyst muddy water be added in flocculation tempering tank, complexing agent, flocculation agents;
The large alumen ustum of d, formation is transported to after folded spiral shell owner body carries out processed through delivery device discharges mud cake and filtrate.
Preferably, described complexing agent formed by the one of composite raw material or at least two kinds form by certain mass mark is composite, described composite raw material comprises poly-ferric chloride (PFC), polymerize aluminum chloride (PAC), sodium sulphite (Na
2s), iron(ic) chloride (FeCl
3), calcium acetate (Ca (CH
3cOO)
2), calcium chloride (CaCl
2) and ferric sulfate Fe
2(SO
4)
3.
Preferably, described flocculation agent is a kind of in non-ionic polyacrylamide (PAM), cationic polyacrylamide (PAM) and anionic polyacrylamide (PAM).
To sum up, as another kind of preferred embodiment, the principle of work of spent catalyst muddy water dewatering processing device of the present invention and processing method thereof is as follows: the spent catalyst muddy water bottom settling pond regularly enters intermediate agitation groove (containing whipping appts), complexing agent is added to intermediate agitation groove through complexing agent dosing pump, spent catalyst muddy water and complexing agent after initial reaction, deliver into described flocculation tempering tank by described sludge delivery pump in intermediate agitation groove; Like this, mud after complexing agent enhanced coagulation enters flocculation tempering tank, flocculation agent dosing pump automatic feeding flocculation agent, folded spiral shell owner body is entered after stirring the large alumen ustum of formation by the whipping appts in flocculation tempering tank, carry out gravity concentration at the enriching section of folded spiral shell owner body, filtrate is discharged from the filter seam of enriching section; Mud after concentrated is pushed ahead along the screw shaft of folded spiral shell owner body, fully dewaters under various effect of making a concerted effort at dewatering period; Mud cake after dehydration is discharged from mud cake relief outlet 441, and the filtrate of generation comes back to leading portion settling pond, forms closed cycle.
Application example:
Bottom settling pond water ratio be 99.5% spent catalyst muddy water flow automatically to intermediate agitation groove 11, simultaneously, the complexing agent of highly efficiency compositional is put in intermediate agitation groove 11 by complexing agent dosing pump 22, spent catalyst muddy water (over dry mud) is 50:1 with the weight ratio of complexing agent, after spent catalyst muddy water and complexing agent tentatively mix in intermediate agitation groove, flocculation agent tempering tank 41 is delivered into by conveying sludge pump 12, flocculation agent PAM steeps after medicine device 31 prepares in advance by flocculation agent automatically, flocculation agent tempering tank 41 is added to by flocculation agent dosing pump 6, stop 3min, fully be uniformly mixed by whipping appts 42, wherein spent catalyst muddy water (over dry mud) is 150:1 with the weight ratio of PAM, mud after being fully uniformly mixed is delivered to folded spiral shell owner body 44 through delivery device 43 and carries out processed,
By the large alumen ustum that mix and blend is formed in flocculation agent tempering tank, carry out gravity concentration at the enriching section of folded spiral shell owner body, filtrate is discharged through filtrate relief outlet 442 from the filter seam of enriching section; Mud after concentrated is pushed ahead along the screw shaft of folded spiral shell owner body, fully dewaters under various force action.Mud cake after dehydration is discharged from mud cake relief outlet 441.
Folded spiral shell dehydrated sludge water ratio is about 55%, and can adopt burning according to different requirement, mummification is burning disposal again; Pressure filtration yielding water can enter leading portion settling pond, forms closed cycle, settling pond water outlet by after airoxidation to sewage farm water-in.Optionally, over dry mud: complexing agent=120:1, over dry mud: PAM=280:1.Optionally, settling pond water outlet by after pure oxygen oxide treatment to sewage farm water-in.
To sum up, the invention provides a kind of spent catalyst muddy water dewatering processing device and method, by chemical complexing enhanced coagulation is combined with folded spiral shell dehydration technique, for catalytic cracking unit system for desulfuration and denitration spent catalyst Slurry treatment provides new thinking, there is not easily blocking, do not produce Er the Wu Ran ﹑ floor space little ﹑ Cao Fang of work Bian ﹑ level of automation advantages of higher.Meanwhile, this technique is screened composite by complexing agent, enhanced flocculation effect, and improve the rear solid content of mud cake of spent catalyst muddy water dehydration and the rate of recovery of spent catalyst, whole technical process is simple, compact, stable, safety.This technique can be used for oil refinery waste catalyzer mud-water separation, applied widely, can realize cleanly production and waste minimizing process.
Above embodiment is with reference to accompanying drawing, to a preferred embodiment of the present invention will be described in detail.Those skilled in the art by carrying out amendment on various forms or change to above-described embodiment, but when not deviating from essence of the present invention, drops within protection scope of the present invention.
Claims (10)
1. a spent catalyst muddy water dewatering processing device, it is characterized in that: comprise sludge conveyer (1), complexing agent throwing device (2), flocculating agent feeding device (3) and folded spiral shell dewatering unit (4), described complexing agent throwing device comprises complexing agent Preparation tank (21) and complexing agent dosing pump (22), described flocculating agent feeding device comprises flocculation agent and automatically steeps medicine device (31) and flocculation agent dosing pump (32), described folded spiral shell dewatering unit comprises flocculation tempering tank (41), whipping appts (42), delivery device (43) and folded spiral shell owner body (44), spent catalyst muddy water is added to described flocculation tempering tank by described sludge conveyer, the complexing agent of compound screening in described complexing agent Preparation tank is added to described flocculation tempering tank or is added to described sludge conveyer by described complexing agent dosing pump, flocculation agent is steeped the flocculant concentration prepared in medicine device to described flocculation tempering tank by described flocculation agent dosing pump automatically, described whipping appts is to the spent catalyst muddy water be added in described flocculation tempering tank, complexing agent, flocculation agent carries out being uniformly mixed the large alumen ustum of formation, the large alumen ustum formed is delivered in described folded spiral shell owner body by described delivery device, described folded spiral shell owner body discharges mud cake and filtrate to after described large alumen ustum thickening process.
2. spent catalyst muddy water dewatering processing device according to claim 1, it is characterized in that: described sludge conveyer comprises intermediate agitation groove (11) and sludge delivery pump (12), after entering the stirring of described intermediate agitation groove from the spent catalyst muddy water bottom waste water settling pond, put into described flocculation tempering tank by described sludge delivery pump.
3. spent catalyst muddy water dewatering processing device according to claim 2, it is characterized in that: described complexing agent is added in described intermediate agitation groove by described complexing agent dosing pump, spent catalyst muddy water and complexing agent deliver into described flocculation tempering tank by described sludge delivery pump after tentatively mixing in described intermediate agitation groove.
4. spent catalyst muddy water dewatering processing device according to claim 2, it is characterized in that: described sludge conveyer also comprises line mixer (13), described complexing agent is added in described line mixer by described complexing agent dosing pump, spent catalyst muddy water is after described intermediate agitation groove stirs, be added in described line mixer by described sludge delivery pump, spent catalyst muddy water and complexing agent are delivered to described flocculation tempering tank after tentatively mixing in described line mixer.
5. spent catalyst muddy water dewatering processing device according to claim 1, is characterized in that: described whipping appts is double-deck or multilayer paddle stirring.
6. spent catalyst muddy water dewatering processing device according to claim 3, is characterized in that: be provided with the liquidometer controlling described flocculation agent dosing pump and sludge delivery pump keying in described flocculation tempering tank.
7. a spent catalyst Slurry treatment method, the method application rights requires that the spent catalyst muddy water dewatering processing device described in 3 realizes spent catalyst Slurry treatment, it is characterized in that: comprise the steps:
A, spent catalyst muddy water is delivered to line mixer by sludge delivery pump, meanwhile, the complexing agent of compound screening puts into line mixer by complexing agent dosing pump;
B, spent catalyst muddy water and complexing agent enter into flocculation tempering tank in line mixer after initial reaction, meanwhile, flocculation agent is steeped the flocculant concentration prepared in medicine device to flocculation tempering tank by flocculation agent dosing pump automatically;
C, whipping appts are uniformly mixed form large alumen ustum to the spent catalyst muddy water be added in flocculation tempering tank, complexing agent, flocculation agents;
The large alumen ustum of d, formation is transported to after folded spiral shell owner body carries out processed through delivery device discharges mud cake and filtrate.
8. a spent catalyst Slurry treatment method, the method application rights requires that the spent catalyst muddy water dewatering processing device described in 4 realizes spent catalyst Slurry treatment, it is characterized in that: comprise the steps:
A, be added in intermediate agitation groove by complexing agent through complexing agent dosing pump, spent catalyst muddy water tentatively mixes in described intermediate agitation groove with complexing agent;
B, spent catalyst muddy water and complexing agent after initial reaction, deliver into described flocculation tempering tank by described sludge delivery pump in intermediate agitation groove; Meanwhile, flocculation agent is steeped the flocculant concentration prepared in medicine device to flocculation tempering tank by flocculation agent dosing pump automatically;
C, whipping appts are uniformly mixed form large alumen ustum to the spent catalyst muddy water be added in flocculation tempering tank, complexing agent, flocculation agents;
The large alumen ustum of d, formation is transported to after folded spiral shell owner body carries out processed through delivery device discharges mud cake and filtrate.
9. the spent catalyst Slurry treatment method according to claim 7 or 8, it is characterized in that: described complexing agent formed by the one of composite raw material or at least two kinds form by certain mass mark is composite, described composite raw material comprises poly-ferric chloride, polymerize aluminum chloride, sodium sulphite, iron(ic) chloride, calcium acetate, calcium chloride and ferric sulfate.
10. the spent catalyst Slurry treatment method according to claim 7 or 8, is characterized in that: described flocculation agent is a kind of in non-ionic polyacrylamide, cationic polyacrylamide and anionic polyacrylamide.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510081371.1A CN104692611B (en) | 2015-02-15 | 2015-02-15 | Waste catalyst mud water dehydration treatment equipment and waste catalyst mud water dehydration treatment method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510081371.1A CN104692611B (en) | 2015-02-15 | 2015-02-15 | Waste catalyst mud water dehydration treatment equipment and waste catalyst mud water dehydration treatment method |
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| CN105780919A (en) * | 2016-04-08 | 2016-07-20 | 福建群峰机械有限公司 | Mud-water separation type multifunctional dredging vehicle |
| CN108776429A (en) * | 2018-06-20 | 2018-11-09 | 江苏复星节能环保有限公司 | Improve biochemistry pool mixing effect method |
| CN112723710A (en) * | 2020-12-31 | 2021-04-30 | 江苏大学 | Efficient sludge dewatering system and dewatering method |
| CN113814208A (en) * | 2020-06-15 | 2021-12-21 | 宝山钢铁股份有限公司 | Material cleaning and recycling system and method for conveyor |
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| CN113814208A (en) * | 2020-06-15 | 2021-12-21 | 宝山钢铁股份有限公司 | Material cleaning and recycling system and method for conveyor |
| CN112723710A (en) * | 2020-12-31 | 2021-04-30 | 江苏大学 | Efficient sludge dewatering system and dewatering method |
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