CN103112971A - Coagulation-floatation and co-coagulation solid-liquid separation device and solid-liquid separation method - Google Patents
Coagulation-floatation and co-coagulation solid-liquid separation device and solid-liquid separation method Download PDFInfo
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Abstract
The invention belongs to sewage treatment equipment, and particularly relates to a coagulation-floatation and co-coagulation solid-liquid separation device and a solid-liquid separation method. The separation device is characterized by being formed by sequentially installing a sewage medicating-mixing system, a multiphase medium pump air-dissolving system, a mixed reaction co-coagulation system and a co-coagulation solid-liquid separation device at a sewage pool; the separation device disclosed by the invention is reasonable in design and compact in structure, and provided with an independent mixed co-coagulation reaction and co-coagulation solid-liquid separation system; moreover, optimization for a coagulation-floatation and co-coagulation-floatation separation process is realized, and a variable-water-level dross removal method is used for dross removal; and the separation device has the characteristics of being simple and convenient, small in overall floor area, less in investment, high in efficiency, and the like. The separation device and the separation method are especially suitable for treating colloids and suspended matters in sewage and waste water generated during production and life processes, so as to realize solid-liquid separation.
Description
Technical field
The invention belongs to and sewage disposal device, relate in particular to a kind of coagulation air-float co-agglomeration equipment for separating liquid from solid and separation method thereof.
Background technology
Air floating water purification technology be a kind of efficiently, solid-liquid separation technique fast, start from ore dressing, this technology quite is subjected to the concern of Chinese scholars and is developed rapidly in water treatment field, be widely used at present feedwater, especially the purifying treatment of low temperature, low turbid, rich algae water, and municipal effluent and Industrial Wastewater Treatment.The air supporting process is different according to the producing method of bubble, can be divided into electrolysis-coagulation air supporting, gas distribution air supporting and air-dissolving air-float, and partial reflux formula pressure air-dissolving air-float wherein is technique the most frequently used in water treatment.Air supporting is by the air that the is dissolved in the water release of reducing pressure suddenly, forms a large amount of microbubbles, and the wadding grain floating after coagulation is removed, and reaches the water purification purpose.The quality of effect depends on the adhesion situation of bubble and wadding grain.The basic form that adheres to mainly contains three kinds: bubble adheres to the direct impact of wadding grain; Bubble is separated out from a surface of wadding a quilt with cotton; Bubble is growth or parcel from wadding intergranular gap.Existing air-flotation separation equipment is mainly realized solid-liquid separation by absorption and the jacking of bubble and particle, and effect is unstable, and efficiency ratio is relatively poor.The flotation waste water treatment technological process takes full advantage of the contact medium effect of microbubble, make microbubble, micro-floccule carry out contact flocculation in suitable reactor, it is one that the homophase of particulate matter and out-phase contact flocculation process are melted two, final form be fit to separate, it is stable that bubble--flco is aggregate altogether, thereby has improved daf efficiency.
At present, traditional air-float technology is all first coagulating agent and coagulant aids fully to be mixed with pending water, then adopts the mode of following current to make pending water and dissolved air water carry out coagulating, reaches the purpose of water treatment.This traditional water technology time is long, needs simultaneously to arrange coagulation dosing unit and coagulating unit, causes forming common cohesion bubble--and flco is aggregate altogether, and separating effect is relatively poor, and floor space is large, and cost of equipment is also high.
Summary of the invention
The present invention is intended to avoid the shortcoming and defect part that exists in above-mentioned technology, a kind of coagulation air-float co-agglomeration equipment for separating liquid from solid and separation method thereof are provided, this coagulation air-float co-agglomeration equipment for separating liquid from solid be by the hybrid reaction system is set independently, independently solid-liquid separation system is realized the optimization of coagulation air-float co-agglomeration dissolved air flotation process; Adopt simultaneously the water level deslagging mode that becomes on row's scum silica frost mode, therefore, this coagulation air-float co-agglomeration equipment for separating liquid from solid is not only reasonable in design, compact construction, have independently hybrid reaction and solid-liquid separation system, and realize to optimize coagulation air-float co-agglomeration dissolved air flotation process, have simple and easy convenient, whole plant and take up an area little, less investment, efficient high.
the present invention adopts following technical scheme to realize: described coagulation air-float co-agglomeration equipment for separating liquid from solid is characterized in that: described tripping device is sequentially to install sewage dosing mixing system, multiphase medium pump air dissolving system, hybrid reaction condensed system and condense altogether equipment for separating liquid from solid altogether at the sewage lagoon place, described sewage dosing mixing system is comprised of waste pipe, sewage variable valve, sewage vacuum tensimeter, tensimeter, jet variable valve first, sump pump, pH adjusting agent medicine-chest, PAC coagulating agent medicine-chest, PAM coagulant aids medicine-chest, medicine absorbing tube, suction medicine variable valve, dosing pump and sewage dissolved air water house steward, one end of described waste pipe inserts in sewage lagoon, the other end of waste pipe is connected with the import of sump pump, and sequentially installs sewage variable valve, sewage vacuum tensimeter and jet variable valve first on waste pipe that sump pump is connected, sequentially be connected pH adjusting agent medicine-chest, PAC coagulating agent medicine-chest by pipeline on the waste pipe between its sewage vacuum tensimeter and jet variable valve first, sequentially install pH regulator valve first, pH under meter and pH regulator valve second on the pipe between described pH adjusting agent medicine-chest and waste pipe, sequentially install PAC coagulating agent variable valve first, PAC coagulating agent flow meter and PAC coagulating agent variable valve second on pipeline between described PAC coagulating agent medicine-chest and waste pipe, PAM coagulant aids medicine-chest is set after PAC coagulating agent medicine-chest, and the outside of described PAM coagulant aids medicine-chest is connected with the import of dosing pump by medicine absorbing tube, on its medicine absorbing tube, the medicine variable valve is inhaled in installing, and described sewage pump outlet is connected with multiphase medium pump air dissolving system by sewage dissolved air water house steward, sequentially install dissolved air water tensimeter, sewage dissolved air water variable valve first, sewage dissolved air water under meter, sewage dissolved air water variable valve second and sewage dissolved air water sampling valve on described sewage dissolved air water house steward, with be connected an end of jet pipeline on dissolved air water house steward between dissolved air water tensimeter and dissolved air water variable valve first, the other end of described jet pipeline is connected on waste pipe, sequentially install ejector, fluidic flowmeter and jet variable valve second on its jet pipeline, described multiphase medium pump air dissolving system is comprised of dissolved air water house steward, sampling valve, dissolved air water variable valve first, dissolved air water under meter, dissolved air water variable valve second, dissolved air water house steward variable valve, gas-liquid pressure table, dissolved air water arm A, dissolved air water arm B and gas-liquid mixing pump, sequentially install gas-liquid pressure table and dissolved air water house steward variable valve on described dissolved air water house steward, the end of described dissolved air water arm B and sewage dissolved air water house steward enter in path hybrid reaction pipe after the A place is connected, the other end of described dissolved air water arm B is connected with the exit end of gas-liquid mixing pump by the dissolved air water house steward, sequentially installs dissolved air water arm B variable valve first, dissolved air water arm B under meter, dissolved air water arm B variable valve second and dissolved air water arm B sampling valve on described dissolved air water arm B, enter in the hybrid reaction pipe of large footpath after being connected by pipeline with chemical feeding points D again after the B point place of the end of described dissolved air water arm A and central diameter hybrid reaction pipe water side is connected, the other end of its dissolved air water arm A is connected with the dissolved air water house steward of gas-liquid mixing pump, sequentially installs dissolved air water arm A variable valve first, dissolved air water arm A under meter, dissolved air water arm A variable valve second on described dissolved air water arm A, the entrance end of described gas-liquid mixing pump condenses together in separate housings in equipment for separating liquid from solid and connects by pipeline, sequentially install gas meter first and gas regulating valve first on this inlet pipe, installing gas-jet device, gas meter second and gas regulating valve second on the pipeline of the import of its gas-liquid mixing pump and outlet, the common aggregation of described mixing system is comprised of path hybrid reaction pipe assembly, central diameter hybrid reaction pipe, pipe connecting, pipeline and large footpath hybrid reaction pipe assembly, and described path hybrid reaction pipe assembly is comprised of path hybrid reaction pipe, path vent valve, path dosing arm, path chemicals addition control valve first, path dosing under meter and path chemicals addition control valve second, described path hybrid reaction pipe is installed the path vent valve by pipeline, one end of C point place's connection path dosing arm of its path hybrid reaction Guan Yiduan, the other end of described path dosing arm is connected on the dosing house steward, and sequentially installs path chemicals addition control valve first, path dosing under meter and path chemicals addition control valve second on its path dosing arm, the chemical feeding points C place of described path hybrid reaction Guan Yiduan is connected by the end of pipe connecting with central diameter hybrid reaction pipe, the other end of described central diameter hybrid reaction pipe is connected on the chemical feeding points D of the large footpath dosing arm in the hybrid reaction pipe assembly of large footpath by pipeline, described large footpath hybrid reaction pipe assembly is by large footpath hybrid reaction pipe, large footpath dosing arm, large footpath chemicals addition control valve first, large footpath dosing under meter and large footpath chemicals addition control valve second, rising pipe and go out water regulating valve and form, described large footpath hybrid reaction pipe is installed large footpath vent valve by pipeline, its large footpath hybrid reaction pipe connects an end of large footpath dosing arm, and the other end of described large footpath dosing arm connects on the dosing house steward, sequentially install large footpath chemicals addition control valve first, large footpath dosing under meter and large footpath chemicals addition control valve second on its large footpath dosing arm, the rising pipe of described large footpath hybrid reaction pipe passes separate housings, back-up ring in common cohesion equipment for separating liquid from solid and is connected on the separator tube bottom, installs out water regulating valve on its rising pipe, the described equipment for separating liquid from solid that condenses altogether is by separate housings, back-up ring, the perforation header, separator tube, distribution pipe, cone separator, the scum layer district, scum pipe, isolate water pipe, high-order water shoot, the header tank pipe connecting, header tank, the low level water shoot, water valve, drain pipe port, vent valve, evacuated tube and supporting leg form, described separate housings supports by supporting leg, in its shell, lower central is provided with separator tube, described separator tube bottom is connected with rising pipe, be provided with back-up ring along its separator tube bottom periphery, described perforation header is the circle around back-up ring, one end of its perforation header passes separate housings and is connected bottom header tank by isolating water pipe, header tank pipe connecting bottom surface in described header tank connects the top of high-order water shoot, and the bottom of described high-order water shoot is connected on the hypomere of low level water shoot, and installs water valve on low level water shoot more than high-order water shoot, the top of described low level water shoot is connected bottom header tank, and the bottom of its low level water shoot is drain pipe port, at the bottom of described separate housings, outer middle part connects evacuated tube, described evacuated tube installing vent valve, along a plurality of cone separators that distribute on the separator tube periphery of back-up ring top, installing distribution pipe in described each cone separator, described separate housings top middle part formation scum silica frost collecting region, the outside, described scum layer district is provided with scum pipe.
The separation method of described coagulation air-float co-agglomeration equipment for separating liquid from solid is characterized in that: described separation method comprises the steps:
Step 1: the coagulating agent in described dosing mixing system, pH adjusting agent suck by the effect of sump pump self-priming, chemical feeding quantity is controlled by PAC coagulating agent flow meter and pH under meter, the high speed rotating cutting of the impeller of process water pump, liquid is mixed with sewage, and its PAM coagulant aids is to control by dosing pump and path dosing under meter, large footpath dosing under meter to join hybrid reaction chemical feeding points C and the D of condensed system altogether; Sump pump position in parallel is provided with ejector, sucks quantitative air by jet, and its add-on is 1% of sewage quantity, and air dissolves in sewage gas dispersion after repeatedly being cut by sump pump, and pressure maintains in the 0.2-0.3Mpa scope;
Step 2: the mixed mixed medicine sewage of dosing enters in the path hybrid reaction pipe of the path hybrid reaction pipe assembly in the common condensed system of described hybrid reaction by sump pump, the dissolved air water that its gas-liquid mixing pump produces adds an A and dissolved air water under meter to control add-on by dissolved air water, the ratio of its add-on accounts for 35% of total add-on, its dissolved air water adds a B and arm A under meter second to control add-on, and the ratio of its add-on accounts for 65% of total add-on; The mixed mixed medicine sewage of its dosing and dissolved air water bump in conjunction with generating a large amount of band gas flcos in common aggregation system, then and by the coagulant aids hybrid reaction that chemical feeding points D adds form the bubble of greater particle size and the copolymerized body of wadding grain, enter in solid-liquid separation system and separate;
step 3: the mixture of completing the copolymerized body of the bubble that mixes medicine sewage and dissolved air water hybrid reaction and form greater particle size and the grain of wadding a quilt with cotton when multiphase medium pump air dissolving system enters in the described separator tube that condenses altogether in equipment for separating liquid from solid, distribution pipe by a plurality of cone separators on separator tube, the gas-solid-liquid mixture that needs are separated separates by a plurality of range of distribution independently, because the density difference of the density of bubble and the copolymerized body of wadding grain and water is larger, particle in the mixed medicine sewage of particle diameter ratio is large, this copolymerized body automatic-ascending is to formation scum layer district, separator tube top, discharge by scum pipe, water after purification is collected by the perforation header of the bottom of separator tube, then discharges by the high-low position water shoot, open the water valve on the low level water shoot, this moment, only scum silica frost was not arranged in draining, close the water valve on the low level water shoot, its high-order water shoot begins draining, the pipe connecting of regulating high-order water shoot makes the elevation of water surface in header tank be fit to row's scum silica frost, is convenient to the row's of realization scum silica frost, after completing deslagging, open the water valve on the low level water shoot, carry out the draining of low level water shoot, so analogize, the time that water valve is opened is controlled in cyclical operation, realizes the scum silica frost thickening.
Principle and characteristics of the present invention are described below:
the present invention sequentially installs at the sewage lagoon place by sewage dosing mixing system, multiphase medium pump air dissolving system, hybrid reaction condensed system and condense altogether the tripping device that equipment for separating liquid from solid forms altogether, its sewage dosing mixing system is comprised of waste pipe, sewage variable valve, sewage vacuum tensimeter, jet variable valve first, sump pump, pH adjusting agent medicine-chest, PAC coagulating agent medicine-chest, PAM coagulant aids medicine-chest, medicine absorbing tube, suction medicine variable valve, dosing pump and sewage dissolved air water house steward, its multiphase medium pump air dissolving system by dissolved air water be in charge of, arm sampling valve, dissolved air water variable valve first, dissolved air water under meter, dissolved air water variable valve second, dissolved air water variable valve third, gas-liquid pressure table, dissolved air water arm A, dissolved air water arm B and gas-liquid mixing pump form, the common aggregation of its mixing system is comprised of path hybrid reaction pipe assembly, central diameter hybrid reaction pipe, pipe connecting, pipeline and large footpath hybrid reaction pipe assembly, when the multiphase medium pump sucks the clear water that is total in coacervation and separation device the pump housing and with multiphase medium pump parallel position, ejector is set on suction line, by the jet air amount, vacuum noz(zle) air amount before pump, air is after the multiphase medium pump is cut repeatedly, pressure maintains in the 0.3-0.5Mpa scope, characteristic and microbubble dispose procedure feature according to common cohesion, adopt special reliever, the air that disperses to dissolve in water is emitted fast, the micro-bubble diameter that it discharges is at the 1-10 micron, add an A under meter by dissolved air water, dissolved air water adds a B under meter to control add-on, respectively with hybrid reaction altogether the dissolved air water of condensed system add and be connected, its path hybrid reaction Guan Yiduan adds an A to be connected with gas-liquid mixing pump by dissolved air water, also is connected with sump pump with end, and the other end is connected with central diameter hybrid reaction pipe, also is connected a C to connect with dosing pump, its central diameter hybrid reaction pipe the other end be connected footpath hybrid reaction pipe and connect, both junctions have dissolved air water to add a B, also are connected a D connection with dosing pump, its large footpath hybrid reaction pipe the other end directly enters into common cohesion equipment for separating liquid from solid by the water regulating valve that goes out on rising pipe, condense altogether equipment for separating liquid from solid by separate housings, back-up ring, perforation header, separator tube, distribution pipe, cone separator, scum layer district, scum pipe, isolate water pipe, high-order water shoot, header tank pipe connecting, header tank, low level water shoot, water valve, drain pipe port, vent valve, evacuated tube and supporting leg and form, the separate housings of condensing altogether equipment for separating liquid from solid adopts cylinder, be provided with separator tube in the described equipment for separating liquid from solid inside of condensing altogether, separator tube is provided with a plurality of distribution pipes, a plurality of back taper spargers, the disengaging zone on the top of separator tube, be provided with the taper triphase separator, the upper outside of separator is equipped with row's oil slick mud pipe, lower inside is equipped with perforation header and back-up ring, the perforation header is connected with the lower end of rising pipe, enter in the effluent collection case of common coacervation and separation device upper outside, inwardly be provided with two high-low-position water shoots, high-order water shoot top is provided with adjustable pipe connecting, the low level water shoot is provided with water valve, evacuated tube and vent valve are installed outward at the bottom of separate housings, the bottom of device outside is equipped with supporting leg.
Characteristics of the present invention are:
1, the present invention has fully used the ultimate principle of coagulation air-float co-agglomeration, discharge intensive ultramicro air bubble by molten gas gas releasing system, build bridge with flco, winding, net is caught effect, the copolymerized body that these three kinds of combinations form is in floating-upward process, can not be subject to the shearing force impact and bubble is come off, scum silica frost is very stable, and water ratio reduces greatly, because the copolymerized body diameter that forms is more much larger than traditional air supporting, also increase many with the density difference of water, according to Stokes'theorem, square being directly proportional of ascent rate and particle diameter, be directly proportional to the density difference of water to particle, so, ascent rate is faster than traditional air supporting, shorten the Reaction Separation time, the separation efficiency and stability of airfloat equipment have so greatly been improved.
2, on position in parallel, ejector is set on the sump pump suction line, sucks quantitative air by jet, according to characteristic and the microbubble dispose procedure feature of common cohesion, realize that microbubble participates in coagulating directly, be conducive to the common cohesion of bubble and particle.
3, coagulant aids joins in the common condensed system of hybrid reaction by 2, improves the adsorption bridging function; The mode that adds of dissolved air water adopts add at 2, can guarantee sewage in the situation that dosing can part and bubble incorporation, and most of bubble can not broken in condensed system altogether prematurely in hybrid reaction; The hybrid reaction that the changes dosing of condensed system altogether can make medicament, sewage, more abundant effective mixing of dissolved air water three with the mode that adds dissolved air water, for the generation of copolymerized body provides favourable materialization space, the stability of scum silica frost and upper i in raising.
4, having formed the bubble direction parallel with the separator tube of mixed solution in common cohesion equipment for separating liquid from solid of the common aggregate of flco enters, complete the solid-liquid separation in zone separately by separate a plurality of disengaging zone on separator tube, increased pneumatically supported freedom from jamming, minimizing is disturbed floating wadding slag, greatly improves separation efficiency.
5, control row's scum silica frost by becoming level control valve intermittence, the thickening of scum silica frost in common cohesion equipment for separating liquid from solid in realizations can further reduce the water ratio of the slag of wadding a quilt with cotton, simple and convenient.
6, the present invention can be used for producing in the process for producing life process colloid and the suspended substance in sewage and waste water, completes solid-liquid separation.
The comprehensive above technical scheme of taking realizes purpose of the present invention.
Therefore, compared with prior art, the present invention is not only reasonable in design, compact construction, have independently hybrid reaction and solid-liquid separation system, and realize to optimize coagulation air-float co-agglomeration dissolved air flotation process, have simple and easy convenient, whole plant and take up an area little, less investment, efficient high.
Description of drawings
The invention will be further described below in conjunction with drawings and Examples.
The present invention has a width accompanying drawing.Wherein:
Accompanying drawing 1 is the main TV structure schematic diagram of specific embodiments of the invention.
in figure, 1, sewage lagoon, 2, waste pipe, 3, the sewage variable valve, 4, the sewage vacuum tensimeter, 5, the coagulating agent medicine-chest, 6, pH regulator valve second, 7, the pH under meter, 8, pH regulator valve first, 9, the pH adjusting agent medicine-chest, 10, PAC coagulating agent variable valve second, 11, PAC coagulating agent flow meter, 12, PAC coagulating agent variable valve first, 13, PAM coagulant aids medicine-chest, 14, jet variable valve first, 15, ejector, 16, fluidic flowmeter, 17, the jet pipeline, 18, jet variable valve second, 19, sump pump, 20, sewage dissolved air water tensimeter, 21, sewage dissolved air water house steward, 22, sewage dissolved air water variable valve first, 23, sewage dissolved air water under meter, 24, sewage dissolved air water variable valve second, 25, sewage dissolved air water sampling valve, 26, inhale medicine variable valve 27, medicine absorbing tube, 28, dosing pump, 29, the dosing house steward, 30, path chemicals addition control valve first, 31, large footpath dosing arm, 32, path dosing under meter, 33, large footpath chemicals addition control valve first, 34, path chemicals addition control valve second, 35, large footpath dosing under meter, 36, path dosing arm, 37, large footpath chemicals addition control valve second, 38, pipeline, 39, support, 40, large footpath hybrid reaction pipe, 41, central diameter hybrid reaction pipe, 42, pipe connecting, 43, path hybrid reaction pipe, 44, large footpath vent valve, 45, the path vent valve, 46, go out water regulating valve, 47, rising pipe, 48, gas-liquid mixing pump, 49, the gas-liquid pressure table, 50, dissolved air water variable valve the third, 51, dissolved air water arm A variable valve first, 52, dissolved air water arm A under meter, 53, dissolved air water arm A variable valve second, 54, dissolved air water arm A, 55, the dissolved air water house steward, 56, dissolved air water arm B variable valve first, 57, dissolved air water arm B under meter, 58, dissolved air water arm B variable valve second, 59, dissolved air water arm B, 60, dissolved air water arm B sampling valve, 61, the gas regulating valve first, 62, the gas-jet device, 63, gas regulating valve second, 64, gas meter second, 65, the gas meter first, 66, separate housings, 67, back-up ring, 68, the perforation header, 69, separator tube, 70, distribution pipe, 71, cone separator, 72, the scum silica frost collecting region, 73, scum pipe, 74, isolate water pipe, 75, high-order water shoot, 76, the header tank pipe connecting, 77, header tank, 78, the low level water shoot, 79, water valve, 80, drain pipe port, 81, vent valve, 82, evacuated tube, 83, supporting leg.
Embodiment
shown in Figure 1 is specific embodiments of the invention, and it is coagulation air-float co-agglomeration equipment for separating liquid from solid and the separation method thereof of using at certain factory processes production waste, described coagulation air-float co-agglomeration equipment for separating liquid from solid is characterized in that: described tripping device is sequentially to install at the sewage lagoon place by sewage dosing mixing system, multiphase medium pump air dissolving system, hybrid reaction condensed system and condense altogether equipment for separating liquid from solid altogether, described sewage dosing mixing system is by waste pipe 2, sewage variable valve 3, sewage vacuum tensimeter 4, jet variable valve first 14, sump pump 19, pH adjusting agent medicine-chest 9, PAC coagulating agent medicine-chest 5, PAM coagulant aids medicine-chest 13, medicine absorbing tube 27, inhale medicine variable valve 26, medicine absorbing tube, dosing pump 28 and sewage dissolved air water house steward 21 form, insert in sewage lagoon 1 bottom of described waste pipe 2, the other end of its waste pipe 2 is connected with the import of sump pump 19, with sequentially install sewage variable valve 3 on waste pipe 2 that sump pump 19 is connected, sewage vacuum tensimeter 4 and jet variable valve first 14, sequentially be connected pH adjusting agent medicine-chest 9, PAC coagulating agent medicine-chest 5 by pipeline on the waste pipe 2 between its sewage vacuum tensimeter 4 and jet variable valve first 14, sequentially install pH regulator valve first 8, pH under meter 7 and pH regulator valve second 6 on the pipe between described pH adjusting agent medicine-chest 9 and waste pipe 2, sequentially install PAC coagulating agent variable valve first 12, PAC coagulating agent flow meter 11 and PAC coagulating agent variable valve second 10 on pipeline between described PAC coagulating agent medicine-chest and waste pipe 2, PAM coagulant aids medicine-chest 13 is set after PAC coagulating agent case 13, and the outside of described PAM coagulant aids medicine-chest 13 is connected with the import of dosing pump 28 by medicine absorbing tube 27, on its medicine absorbing tube 27, medicine variable valve 26 is inhaled in installing, and the outlet of described sump pump 19 is connected with multiphase medium pump air dissolving system dissolved air water arm B59 by sewage dissolved air water house steward 21, sequentially install sewage dissolved air water tensimeter 20, sewage dissolved air water variable valve first 22, sewage dissolved air water under meter 23, sewage dissolved air water variable valve second 24 and sewage dissolved air water sampling valve 25 on described sewage dissolved air water house steward 21, press with the sewage dissolved air water end that is connected jet pipeline 17 on sewage dissolved air water house steward 21 between table 20 and sewage dissolved air water variable valve first 22, the other end of described jet pipeline 17 is connected on waste pipe 2, sequentially install ejector 15, fluidic flowmeter 16 and jet variable valve second 17 on its jet pipeline 17, described multiphase medium pump air dissolving system is comprised of gas-liquid mixing pump 48, dissolved air water house steward 55, dissolved air water arm A54, dissolved air water arm B59, dissolved air water arm B sampling valve 60, dissolved air water arm B variable valve first 56, dissolved air water under meter 57, dissolved air water variable valve second 58, dissolved air water house steward variable valve 50 and gas-liquid pressure table 49, sequentially installs gas-liquid pressure table 49 and dissolved air water house steward variable valve 50 on described dissolved air water house steward 55, the end of described dissolved air water arm B59 and sewage dissolved air water house steward 21 enter in path hybrid reaction pipe 43 after the A place is connected, the other end of described dissolved air water arm B59 is connected with the exit end of gas-liquid mixing pump 48 by dissolved air water house steward 55, sequentially installs dissolved air water arm B variable valve first 56, dissolved air water arm B under meter 57, dissolved air water arm B variable valve second 58 and dissolved air water arm B sampling valve 60 on described dissolved air water arm B59, enter in large footpath hybrid reaction pipe 40 after being connected by pipeline 38 with chemical feeding points D again after the B point place of the end of described dissolved air water arm A54 and central diameter hybrid reaction pipe water side is connected, the other end of its dissolved air water arm A54 is connected with the dissolved air water house steward 55 of gas-liquid mixing pump 48, sequentially installs dissolved air water arm A variable valve first 51, dissolved air water arm A under meter 52, dissolved air water arm A variable valve second 53 on described dissolved air water arm A54, the entrance end of described gas-liquid mixing pump 48 condenses together in separate housings 66 in equipment for separating liquid from solid and connects by pipeline, sequentially install gas meter first 65 and gas regulating valve first 61 on this inlet pipe, installing gas-jet device 62, gas meter second 64 and gas regulating valve second 63 on the pipeline of the import of its gas-liquid mixing pump 48 and outlet, the common aggregation of described mixing system is comprised of path hybrid reaction pipe assembly, central diameter hybrid reaction pipe 41, pipe connecting 42, pipeline 38 and large footpath hybrid reaction pipe assembly, and described path hybrid reaction pipe assembly is comprised of path hybrid reaction pipe 43, path vent valve 45, path dosing arm 36, path chemicals addition control valve first 30, path dosing under meter 32 and path chemicals addition control valve second 34, described path hybrid reaction pipe 43 is installed path vent valve 45 by pipeline, one end of C point place's connection path dosing arm 36 of its path hybrid reaction pipe 43 1 ends, the other end of described path dosing arm 36 is connected on dosing house steward 29, sequentially installs path chemicals addition control valve first 30, path dosing under meter 32 and path chemicals addition control valve second 34 on path dosing arm 36, the chemical feeding points C place of described path hybrid reaction pipe 43 1 ends is connected with an end of central diameter hybrid reaction pipe 41 by pipe connecting 42, the other end of described central diameter hybrid reaction pipe 41 is connected on the chemical feeding points D of the large footpath dosing arm 31 in the hybrid reaction pipe assembly of large footpath by pipeline 38, described large footpath hybrid reaction pipe assembly by large footpath hybrid reaction pipe 40, large footpath dosing arm 31, large footpath chemicals addition control valve first 33, large footpath dosing under meter 35 and large footpath chemicals addition control valve second 37, rising pipe 47, go out water regulating valve 46 and dissolved air water arm A54 forms, described large footpath hybrid reaction pipe is installed large footpath vent valve 44 by pipeline, its large footpath hybrid reaction pipe 40 connects an end of large footpath dosing arm 31, and the other end of described large footpath dosing arm 31 connects on dosing house steward 29, 29 sequentially install large footpath chemicals addition control valve first 33, large footpath dosing under meter 35 and large footpath chemicals addition control valve second 37 on its large footpath dosing arm, the rising pipe 47 of described large footpath hybrid reaction pipe 40 passes separate housings 66, back-up ring 67 in common cohesion equipment for separating liquid from solid and is connected on separator tube 69 bottoms, installs out water regulating valve 46 on its rising pipe 47, the described equipment for separating liquid from solid that condenses altogether is by separate housings 66, back-up ring 67, perforation header 68, separator tube 69, distribution pipe 70, cone separator 71, scum layer district 72, scum pipe 73, isolate water pipe 74, high-order water shoot 75, header tank pipe connecting 76, header tank 77, low level water shoot 78, water valve 79, drain pipe port 80, vent valve 81, evacuated tube 82 and supporting leg 83 form, described separate housings 66 supports by supporting leg 83, in its shell, lower central is provided with separator tube 69, described separator tube 69 bottoms are condensed altogether with rising pipe 47 and are connected, be provided with back-up ring 67 along its separator tube 69 bottom peripheries, described perforation header 68 is the circles outside back-up ring 67, one end passes separate housings 66 and is connected with header tank 77 bottoms by isolating water pipe 74, the top of the header tank pipe connecting 76 high-order water shoots 75 of bottom surfaces connection in described header tank 77, the bottom of described high-order water shoot 75 is connected on the hypomere of low level water shoot 78, with installing water valve 79 on the low level water shoot 78 of high-order water shoot more than 75, the top of described low level water shoot 78 is connected with header tank 77 bottoms, and the bottom of its low level water shoot 78 is drain pipe port 80, described separate housings is middle part connection evacuated tube 82 at 66 the end, described evacuated tube 82 installing vent valves 81, along a plurality of cone separators 71 that distribute on separator tube 69 peripherys of back-up ring 67 tops, the interior installing distribution pipe 70 of described each cone separator 71, described separate housings 66 top middle parts form scum silica frost collecting region 72, and 72 outsides, described scum layer district are provided with scum pipe 73.Described path hybrid reaction pipe 43, central diameter hybrid reaction pipe 41 and large footpath hybrid reaction pipe 40 are installed on support 39 toward lower leaf from high.
Described ejector 15 is installed in the position parallel with sump pump 19.
Described separate housings 66 adopts cylinder.
The separation method of described coagulation air-float co-agglomeration equipment for separating liquid from solid is characterized in that: this separation method comprises the steps:
Step 1: the coagulating agent in described dosing mixing system, pH adjusting agent suck by sump pump 19 self-priming effects, chemical feeding quantity is by being controlled by PAC coagulating agent flow meter 11 and pH under meter 7, the high speed rotating cutting of the impeller of process water pump, liquid is mixed with sewage, and its PAM coagulant aids is to control by dosing pump 28 and path dosing under meter 32, large footpath dosing under meter 35 to join hybrid reaction chemical feeding points C and the D of condensed system altogether; Sump pump 19 position in parallel is provided with ejector 15, sucks quantitative air by jet, and its add-on is 1% of sewage quantity, and air dissolves in sewage gas dispersion after repeatedly being cut by sump pump 19, and pressure maintains in the 0.2-0.3Mpa scope;
Step 2: the mixed mixed medicine sewage of dosing enters in the path hybrid reaction pipe 43 of the path hybrid reaction pipe assembly in the common condensed system of described hybrid reaction by sump pump, the dissolved air water that its gas-liquid mixing pump 48 produces adds an A and dissolved air water under meter 23 to control add-on by dissolved air water, the ratio of its add-on accounts for 35% of total add-on, its dissolved air water adds a B and arm A under meter second 52 to control add-on, and the ratio of its add-on accounts for 65% of total add-on; The mixed mixed medicine sewage of its dosing and dissolved air water bump in conjunction with generating a large amount of band gas flcos in common aggregation system, then and by the coagulant aids hybrid reaction that chemical feeding points D adds form the bubble of greater particle size and the copolymerized body of wadding grain, enter in solid-liquid separation system and separate;
step 3: the mixture of completing the copolymerized body of the bubble that mixes medicine sewage and dissolved air water hybrid reaction and form greater particle size and the grain of wadding a quilt with cotton when multiphase medium pump air dissolving system enters in the described separator tube 69 that condenses altogether in equipment for separating liquid from solid, distribution pipe 70 by a plurality of cone separators 71 on separator tube 69, the gas-solid-liquid mixture that needs are separated separates by a plurality of range of distribution independently, because the density difference of the density of bubble and the copolymerized body of wadding grain and water is larger, particle in the mixed medicine sewage of particle diameter ratio is large, this copolymerized body automatic-ascending is to separator tube 69 formation scum layer districts, tops 72, discharge by scum pipe, water after purification is collected by the perforation header 68 of the bottom of separator tube 69, then discharges by high-low position water shoot 75,78, open the water valve 79 on low level water shoot 78, this moment, only scum silica frost was not arranged in draining, water valve 79 its high-order water shoots of closing on low level water shoot 78 begin draining, the pipe connecting of regulating on high-order water shoot 75 makes the elevation of water surface in header tank 77 be fit to row's scum silica frost, be convenient to the row's of realization scum silica frost, after completing deslagging, open the water valve 79 on low level water shoot 78, carry out the draining of low level water shoot 78, so analogize, the time that water valve 79 is opened is controlled in cyclical operation, realizes the scum silica frost thickening.
The above; it is only better embodiment of the present invention; but protection scope of the present invention is not limited to this; all are familiar with those skilled in the art in technical scope disclosed by the invention, according to technical scheme of the present invention and design of the present invention thereof be equal to replace or change all should be encompassed in protection scope of the present invention within.
Claims (5)
1. coagulation air-float co-agglomeration equipment for separating liquid from solid is characterized in that: described tripping device is sequentially to install sewage dosing mixing system, multiphase medium pump air dissolving system, hybrid reaction condensed system and condense altogether equipment for separating liquid from solid altogether at the sewage lagoon place, described sewage dosing mixing system is by waste pipe (2), sewage variable valve (3), sewage vacuum tensimeter (4), jet variable valve first (14), sump pump (19), pH adjusting agent medicine-chest (9), PAC coagulating agent medicine-chest (5), PAM coagulant aids medicine-chest (13), medicine absorbing tube (29), inhale medicine variable valve (26), medicine absorbing tube (27), dosing pump (28) and sewage dissolved air water house steward (21) form, one end of described waste pipe (2) inserts in sewage lagoon (1), the other end of its waste pipe (2) is connected with the import of sump pump (19), with sequentially install sewage variable valve (3) on waste pipe (2) that sump pump (19) is connected, sewage vacuum tensimeter (4) and jet variable valve first (14), sequentially be connected pH adjusting agent medicine-chest (9), PAC coagulating agent medicine-chest (5) with the waste pipe (2) between jet variable valve first (14) is upper by pipeline at its sewage vacuum tensimeter (4), sequentially install pH regulator valve first (8), pH under meter (7) and pH regulator valve second (6) on the pipeline between described pH adjusting agent medicine-chest (9) and waste pipe (2), sequentially install PAC coagulating agent variable valve first (12), 0PAC coagulating agent flow meter (11) and PAC coagulating agent variable valve second (10) on pipeline between described PAC coagulating agent medicine-chest (5) and waste pipe (2), PAM coagulant aids medicine-chest (13) is set after PAC coagulating agent medicine-chest (5), and the outside of described PAM coagulant aids medicine-chest (13) is connected with the import of dosing pump (28) by medicine absorbing tube (27), medicine variable valve (26) is inhaled in the upper installing of its medicine absorbing tube (27), and the outlet of described sump pump (19) is connected with multiphase medium pump air dissolving system by sewage dissolved air water house steward (21), sequentially install sewage dissolved air water pressure table (20), sewage dissolved air water variable valve first (22), sewage dissolved air water under meter (23), sewage dissolved air water variable valve second (24) and sewage dissolved air water sampling valve (25) on described sewage dissolved air water house steward (21), its sewage dissolved air water is pressed an end that is connected jet pipeline (17) on sewage dissolved air water house steward (21) between table (20) and sewage dissolved air water variable valve first (22), and the other end of described jet pipeline (17) is connected on waste pipe (2), sequentially install ejector (15), fluidic flowmeter (16) and jet variable valve second (18) on its jet pipeline (17), described multiphase medium pump air dissolving system is by gas-liquid mixing pump (48), dissolved air water house steward (55), dissolved air water arm A(54), dissolved air water arm B(59), dissolved air water arm B sampling valve (60), dissolved air water arm B variable valve first (56), dissolved air water under meter (57), dissolved air water variable valve second (58), dissolved air water house steward variable valve (50) and gas-liquid pressure table (49) form, and sequentially installs gas-liquid pressure table (49) and dissolved air water house steward variable valve (50) on described dissolved air water house steward (55), described dissolved air water arm B(59) a end and sewage dissolved air water house steward (21) enter in path hybrid reaction pipe (43) after the A place is connected, described dissolved air water arm B(59) the other end is connected with the exit end of gas-liquid mixing pump (48) by dissolved air water house steward (55), described dissolved air water arm B(59) on sequentially install dissolved air water arm B variable valve first (56), dissolved air water arm B under meter (57), dissolved air water arm B variable valve second (58) and dissolved air water arm B sampling valve (60), enter in large footpath hybrid reaction pipe (40) after being connected by pipeline (38) with chemical feeding points D again after the B point place of an end described dissolved air water arm A(54) and central diameter hybrid reaction pipe water side is connected, its dissolved air water arm A(54) the other end is connected with the dissolved air water house steward (55) of gas-liquid mixing pump (48), described dissolved air water arm A(54) on sequentially install dissolved air water arm A variable valve first (51), dissolved air water arm A under meter (52), dissolved air water arm A variable valve second (53), the entrance end of described gas-liquid mixing pump (48) condenses together in separate housings (66) in equipment for separating liquid from solid and connects by pipeline, sequentially install gas meter first (65) and gas regulating valve first (61) on this inlet pipe, installing gas-jet device (62), gas meter second (64) and gas regulating valve second (63) on the pipeline of the import of its gas-liquid mixing pump (48) and outlet, the common aggregation of described mixing system is comprised of path hybrid reaction pipe assembly, central diameter hybrid reaction pipe (41), pipe connecting (42), pipeline (38) and large footpath hybrid reaction pipe assembly, and described path hybrid reaction pipe assembly is comprised of path hybrid reaction pipe (43), path vent valve (45), path dosing arm (36), path chemicals addition control valve first (30), path dosing under meter (32) and path chemicals addition control valve second (34), described path hybrid reaction pipe (43) is installed path vent valve (45) by pipeline, one end of C point place's connection path dosing arm (36) of path hybrid reaction pipe (43) one ends, the other end of described path dosing arm (36) is connected on dosing house steward (29), sequentially installs path chemicals addition control valve first (30), path dosing under meter (32) and path chemicals addition control valve second (34) on path dosing arm (36), the chemical feeding points C place of described path hybrid reaction pipe (43) one ends is connected with an end of central diameter hybrid reaction pipe (41) by pipe connecting (42), the other end of described central diameter hybrid reaction pipe (41) is connected on the chemical feeding points D of the large footpath dosing arm (31) in the hybrid reaction pipe assembly of large footpath by pipeline (38), described large footpath hybrid reaction pipe assembly is by large footpath hybrid reaction pipe (40), large footpath dosing arm (31), large footpath chemicals addition control valve first (33), large footpath dosing under meter (35) and footpath chemicals addition control valve second (37), rising pipe (47) and go out water regulating valve (46) and form greatly, described large footpath hybrid reaction pipe (40) is installed large footpath vent valve (44) by pipeline, one end of its large footpath hybrid reaction pipe (40) is connected on large footpath dosing arm (31), and the other end of described large footpath dosing arm is connected on dosing house steward (29), sequentially install large footpath chemicals addition control valve first (33), large footpath dosing under meter (35) and large footpath chemicals addition control valve second (37) on described large footpath dosing arm (31), the rising pipe (47) of described large footpath hybrid reaction pipe (40) passes separate housings (66), back-up ring (67) in common cohesion equipment for separating liquid from solid and is connected on separator tube (69) bottom, installs out water regulating valve (46) on its rising pipe (47), the described equipment for separating liquid from solid that condenses altogether is by separate housings (66), back-up ring (67), perforation header (68), separator tube (69), distribution pipe (70), cone separator (71), scum silica frost collecting region (72), scum pipe (73), isolate water pipe (74), high-order water shoot (75), header tank pipe connecting (76), header tank (77), low level water shoot (78), water valve (79), drain pipe port (80), vent valve (81), evacuated tube (82), supporting leg (83) forms, described separate housings (66) supports by supporting leg (83), in its shell, lower central is provided with separator tube (69), described separator tube (69) bottom is connected with rising pipe (47), be provided with back-up ring (67) along its separator tube (69) bottom periphery, described perforation header (68) is the circle around back-up ring (67), one end of its perforation header (68) passes separate housings (66) and is connected bottom header tank (77) by isolating water pipe (74), the top of header tank pipe connecting (76) the bottom surface high-order water shoot of connection (75) in described header tank (77), the bottom of described high-order water shoot (75) is connected on the hypomere of low level water shoot (78), the upper installing of the low level water shoot (78) more than high-order water shoot (75) water valve (79), the top of described low level water shoot (78) is connected bottom header tank (77), and the bottom of low level water shoot (78) is drain pipe port (80), described separate housings (66) is middle part connection evacuated tube (82) at the end, described evacuated tube (82) installing vent valve (82), along a plurality of cone separators (71) that distribute on separator tube (69) periphery of back-up ring (67) top, installing distribution pipe (70) in described each cone separator (71), described separate housings (66) top middle part forms scum layer district (72), and the outside, described scum layer district (72) is provided with scum pipe (73).
2. by the tripping device of coagulation air-float co-agglomeration solid-liquid claimed in claim 1, it is characterized in that: described path hybrid reaction pipe (43), central diameter hybrid reaction pipe (41) and large footpath hybrid reaction pipe (40) are installed on support (39) toward lower leaf from high.
3. by the tripping device of coagulation air-float co-agglomeration solid-liquid claimed in claim 1, it is characterized in that: described ejector (15) is installed in the position parallel with sump pump (19).
4. by the tripping device of coagulation air-float co-agglomeration solid-liquid claimed in claim 1, it is characterized in that: described separate housings 66 adopts cylinder.
5. by the separation method of a kind of coagulation air-float co-agglomeration equipment for separating liquid from solid claimed in claim 1, it is characterized in that: this separation method comprises the steps:
Step 1: the coagulating agent in described dosing mixing system, pH adjusting agent suck by sump pump (19) self-priming effect, chemical feeding quantity is controlled by PAC coagulating agent flow meter (11) and pH under meter (7), the high speed rotating cutting of the impeller of process water pump, liquid is mixed with sewage, and its PAM coagulant aids is to control by dosing pump (28) and path dosing under meter (32), large footpath dosing under meter (35) to join hybrid reaction chemical feeding points C and the D of condensed system altogether; Sump pump (19) position in parallel is provided with ejector (15), suck quantitative air by jet, its add-on is 1% of sewage quantity, after air is cut repeatedly by sump pump (19), gas dispersion is dissolved in sewage, and pressure maintains in the 0.2-0.3Mpa scope;
Step 2: the mixed mixed medicine sewage of dosing enters in the path hybrid reaction pipe (43) of the path hybrid reaction pipe assembly in the common condensed system of described hybrid reaction by sump pump, the dissolved air water that its gas-liquid mixing pump (48) produces adds an A and dissolved air water under meter (23) to control add-on by dissolved air water, the ratio of its add-on accounts for 35% of total add-on, its dissolved air water adds a B and arm A under meter second (52) to control add-on, and the ratio of its add-on accounts for 65% of total add-on; The mixed mixed medicine sewage of its dosing and dissolved air water bump in conjunction with generating a large amount of band gas flcos in common aggregation system, then and by the coagulant aids hybrid reaction that chemical feeding points D adds form the bubble of greater particle size and the copolymerized body of wadding grain, enter in solid-liquid separation system and separate;
step 3: the mixture of completing the copolymerized body of the bubble that mixes medicine sewage and dissolved air water hybrid reaction and form greater particle size and the grain of wadding a quilt with cotton when multiphase medium pump air dissolving system enters in the described separator tube (69) that condenses altogether in equipment for separating liquid from solid, distribution pipe (70) by a plurality of cone separators (71) on separator tube (69), the gas-solid-liquid mixture that needs are separated separates by a plurality of range of distribution independently, because the density difference of the density of bubble and the copolymerized body of wadding grain and water is larger, particle in the mixed medicine sewage of particle diameter ratio is large, this copolymerized body automatic-ascending is to formation scum layer district (72), separator tube (69) top, discharge by scum pipe, water after purification is collected by the perforation header (68) of the bottom of separator tube (69), then discharges by high-low position water shoot (75,78), open the water valve (79) on low level water shoot (78), this moment, only scum silica frost was not arranged in draining, close the water valve (79) on low level water shoot (78), its high-order water shoot begins draining, the pipe connecting of regulating on high-order water shoot (75) makes the elevation of water surface in header tank (77) be fit to row's scum silica frost, is convenient to the row's of realization scum silica frost, after completing deslagging, open the water valve (79) on low level water shoot (78), carry out the draining of low level water shoot (78), so analogize, the time that water valve (79) is opened is controlled in cyclical operation, realizes the scum silica frost thickening.
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| CN109896669A (en) * | 2019-04-29 | 2019-06-18 | 大连交通大学 | Mixed flocculation air bearing all-in-one machine |
| CN109956587A (en) * | 2019-04-30 | 2019-07-02 | 大连交通大学 | Coagulation air-float is copolymerized Quick Separation System |
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