CN104743595A - Safe and efficient solid polyaluminium chloride production system - Google Patents
Safe and efficient solid polyaluminium chloride production system Download PDFInfo
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- CN104743595A CN104743595A CN201310748341.2A CN201310748341A CN104743595A CN 104743595 A CN104743595 A CN 104743595A CN 201310748341 A CN201310748341 A CN 201310748341A CN 104743595 A CN104743595 A CN 104743595A
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Abstract
The invention discloses a safe and efficient solid polyaluminium chloride production system which comprises an acid solution reaction system, a polymerization reaction system and a drying system, wherein the acid solution reaction system comprises an acid solution reaction tank, an acid solution reaction tank transfer tank, a flocculant preparation tank I, an automatic aggregate chamber type filter press and a one-step liquid tank; the polymerization reaction system comprises a polymerization reaction tank, a polymerization reaction tank transfer tank, a cooling tower, a separation tank, a separation residue storage tank, a flocculant preparation tank II and a semi-finished product tank; the drying system comprises a drying liquid high-level tank, a roller drying device and a finished product belt conveyer; and the acid solution reaction tank and the polymerization reaction tank are both a sealed acid-resisting reaction tank. According to the system disclosed by the invention, insoluble residue generated in the reaction is treated through coagulating sedimentation and filter-pressing separation, and the filter residue and filtrate can be efficiently and automatically collected so that the production of solid polyaluminum chloride is energy-saving, consumption-reducing, safe and environment-friendly.
Description
Technical field
The invention belongs to poly aluminium chloride production technical field, relate to one solid poly aluminium chloride production system safely and efficiently.
Background technology
Poly aluminium chloride, is commonly called as water purification agent, has another name called polymerize aluminum chloride, is called for short poly-aluminium, english name PAC; It is the cationic inorganic polymer flocculant of a kind of poly-hydroxy, multinuclear complexing body, and solid phase prod outward appearance is sorrel, yellow or white solid powder, and its chemical molecular formula is [AL
2(OH)
ncL
6-n]
m(in formula, 1≤n≤5, m≤10), wherein m represents extent of polymerization, and n represents the neutral degree of PAC product, soluble in water, there is stronger bridge formation adsorptivity, with physico changes such as electrochemistry, cohesion, absorption and precipitations in hydrolytic process, final generation [AL
2(OH)
3(OH)
3], thus reach purification object.
The fundamental difference of poly aluminium chloride and conventional inorganic coagulating agent is that conventional inorganic coagulating agent is low molecule crystal salt, and the structure of poly aluminium chloride is made up of the polycarboxy complex compound that form is changeable, flocculation sediment speed is fast, be suitable for pH value wide ranges, to pipe-line equipment non-corrosiveness, purifying water effect is obvious, and effectively can prop up dewater middle chromaticness SS, COD, BOD and the heavy metal ion such as arsenic, mercury, this product is widely used in tap water, process water and sewage treatment area.
Poly aluminium chloride is divided into form to be divided into two kinds: a. liquid poly aluminium chloride to be undried form, have and need not dilute, load and unload easy to use, that price is relatively cheap advantage, shortcoming is traffic requirements tank car, and unit cost increases (solid per ton is equivalent to 2-3 ton liquid); B. solid poly aluminium chloride is dried form, has the advantage of convenient transportation, does not need tank car, also needs dilution when shortcoming is and uses, and increases working strength.
The raw material producing poly aluminium chloride mainly contains two large classes: a class is aluminum-containing mineral, comprises bauxite (gibbsite, boehmite, diaspore), clay, kaolin, alunite etc.; Another kind of is other aluminum-containing raw material, comprises metallic aluminium, aluminium scrap bits, grey aluminium, aluminium hydroxide, aluminum chloride, coal gangue, flyash etc.The method of current production poly aluminium chloride mainly contains metallic aluminium (comprising aluminium ash, lead skim) method, active aluminium hydroxide method, aluminium sesquioxide (comprising bauxitic clay, coal gangue etc.) method, crystal aluminum chloride method etc.
Solid poly aluminium chloride production equipment built at present, majority is that bauxitic clay and calcium aluminate two-step approach produce liquid poly aluminium chloride, is then the device of solid poly aluminium chloride by liquid poly aluminium chloride spraying dry or roller drying.The following shortcoming of existing solid poly aluminium chloride production equipment ubiquity:
1) in the acid-soluble reaction of the first step and second step polyreaction, all can produce a large amount of insolubles and be difficult to be separated with reaction solution, cause insolubles severe overweight in final solid poly aluminium chloride product;
2) although existing poly aluminium chloride production equipment generally adopts the press filtration device separates such as pressure filter to remove reaction insolubles residue, but, these pressure filter all do not have material-gathering device, particularly for the filter residue that press filtration is separated, generally directly fall earthward, then collect (normally manually using spade) and get up and carry out again.This mode pollutes production environment, and artificially collects time-consuming, increases production cost; In addition, acid-soluble reacted pickling liquor can volatilize and more do not arrange during press filtration absorb disposal facility accordingly containing sour waste gas, and Working environment can be caused to worsen and environmental pollution;
3) need to use the strongly-acid raw materials such as concentrated hydrochloric acid in reaction, not only have strong corrodibility to reaction tank, and can volatilize a large amount of containing sour waste gas, and existing reaction tank stopping property and acid resistance not ideal enough, easily there is acid liquor leakage and containing sour waste gas effusion accident;
4) the roller drying device heat exchanger effectiveness used is not high, heats uneven, effectively can not utilize the heat energy of thermal oil, is unfavorable for energy-saving and cost-reducing and reduces discharging;
5) dehumidification system flow setting is reasonable not, causes energy consumption for drying high cost, and also compares through the transportation processing of the solid poly aluminium chloride of roller drying and waste time and energy.
Summary of the invention
In view of this, the object of the present invention is to provide one solid poly aluminium chloride production system safely and efficiently, by the insolubles residue produced in coagulating sedimentation, press filtration separating reaction, and efficiently can automatically collect filter residue, filtrate, make that the production of solid poly aluminium chloride is energy-saving and cost-reducing, safety and environmental protection.
For achieving the above object, the invention provides following technical scheme:
The invention discloses one solid poly aluminium chloride production system safely and efficiently, described solid poly aluminium chloride production system comprises acid-soluble reactive system, polymerization reaction system and dehumidification system;
Described acid-soluble reactive system comprises acid-soluble reaction tank, acid-soluble reaction tank transfer pond, flocculating agent formulation tank I, automatically to gather materials chamber-type press filter and a step liquid pool, the described chamber-type press filter that automatically gathers materials comprises frame, rack-mounted two crossbeams and the hydraulic compressing device be arranged in frame, between two crossbeams, be provided with slurcocks and stop plate, the press filtration group be made up of several filter press plates is provided with between slurcocks and prevention plate, every two pieces of filter press plates are combined into a filter chamber, filter chamber is provided with filter cloth, the described chamber-type press filter that automatically gathers materials also comprises and connects liquid pool, be arranged on connecing liquid bath and being arranged at the dreg-accepting hopper immediately below press filtration group in frame, the described liquid bath that connects is communicated with filter chamber by flexible pipe, describedly connect liquid pool and connect liquid bath and be communicated with, described acid-soluble reaction tank is communicated with acid-soluble reaction tank transfer pond, flocculating agent formulation tank I is communicated with acid-soluble reaction tank transfer pond, acid-soluble reaction tank transfer pond is communicated with the chamber-type press filter that automatically gathers materials by the muddy material pump of a step liquid, and the liquid pool that connects of the chamber-type press filter that automatically gathers materials is communicated with a step liquid pool,
Described polymerization reaction system comprises polyreaction pond, polyreaction Chi Zhongzhuanchi, cooling tower, separate tank, be separated slag saving pond, flocculating agent formulation tank II and work in-process pond, a described step liquid pool is communicated with polyreaction pond by a step liquid transferpump, described polyreaction pond is communicated with polyreaction Chi Zhongzhuanchi, polyreaction Chi Zhongzhuanchi is communicated with the entrance of cooling tower by modified liquid transferpump, the outlet of cooling tower is communicated with separate tank, flocculating agent formulation tank II is communicated with separate tank, the top of separate tank is communicated with work in-process pond, the bottom of separate tank be separated slag saving pond and be communicated with, be separated slag saving pond to be communicated with acid-soluble reaction tank by being separated slag transferpump,
Described dehumidification system comprises dry liquid high level tank, roller drying device and finished belt transfer roller; Described roller drying device comprises several drying units, and each drying unit comprises drying drum, scraper, feed liquid dish, feed-pipe and splicing plate; Described drying drum comprises urceolus, inner core, oil inlet pipe, oil outlet pipe, splitter and spray bar, described urceolus is coated at inner core and forms oil pocket between urceolus and inner core, described spray bar is arranged in oil pocket and spray bar is provided with nozzle opening, described oil inlet pipe one end is stretched into oil pocket from urceolus end face and is communicated with spray bar by splitter, and oil pocket is stretched into from urceolus other end in described oil outlet pipe one end; The blade of described scraper is close to outer tube outer surface, and described feed liquid dish to be arranged at below urceolus and to be positioned at feed liquid dish bottom urceolus, and the described feed-pipe mouth of pipe is just to feed liquid dish, and described splicing plate tilts to install, and splicing plate is rectified scraper; Described work in-process pond is communicated with dry liquid high level tank by work in-process liquid pump, and dry liquid high level tank is communicated with the feed-pipe of roller drying device, rectifies finished belt transfer roller under the splicing plate of roller drying device;
Described acid-soluble reaction tank and polyreaction pond are sealing acid tolerance response pond, sealing acid tolerance response pond comprises pond body and Chi Gai, pond body and Chi Gai include reinforced concrete floor, frp layer, Heat-stable ceramic tile layer and acid resistant porcelain flaggy, frp layer, Heat-stable ceramic tile layer and acid resistant porcelain flaggy are located at inside reinforced concrete floor successively, described pond covers and is provided with charging opening, Waste gas outlet and vapor interface, described pond covers and is provided with agitator motor, be provided with the agitator be made up of stirring shaft and agitating vane in the body of pond, stirring shaft is connected with agitator motor.
Further, described acid-soluble reactive system also comprises slag wash trough, and the dreg-accepting hopper of the described chamber-type press filter that automatically gathers materials is communicated with slag wash trough by rotary conveyor.
Further, the dreg-accepting hopper shape of the described chamber-type press filter that automatically gathers materials is the shape of falling truncated rectangular pyramids.
Further, described acid-soluble reactive system also comprises tail gas absorber, be provided with gas skirt directly over the press filtration group of the described chamber-type press filter that automatically gathers materials, the exhaust gas entrance of described tail gas absorber is communicated with the gas skirt of the chamber-type press filter that automatically gathers materials with acid-soluble reaction tank, acid-soluble reaction tank transfer pond respectively.
Further, be bolted between the Chi Gai in described sealing acid tolerance response pond and pond body, the joint face of Chi Gai and pond body has sealing rubber ring.
Further, the pond in described sealing acid tolerance response pond covers and is provided with access opening, and pond covers and is provided with water seal along access opening.
Further, the Chi Tiwei in described sealing acid tolerance response pond is embedded in the circular pond body of underground, and pond body oral area flushes with terrace.
Further, the agitating vane in described sealing acid tolerance response pond is three layers along stirring shaft axial array, and the superiors' agitating vane is the agitating vane of downward eddy flow, and lower two-layer agitating vane is the agitating vane to forward spin flow.
Further, the nozzle opening on described spray bar is just to urceolus, and described urceolus two end faces are respectively equipped with axle sleeve, and described oil inlet pipe and oil outlet pipe are each passed through axle sleeve and are provided with sealing-ring between body and axle sleeve.
Further, each drying unit also comprises the dust gathering arrester be arranged at above urceolus, and the quantity of described drying unit is 20.
Beneficial effect of the present invention is:
1) the present invention is provided with the devices such as acid-soluble reaction tank transfer pond, flocculating agent formulation tank I and pressure filter in acid-soluble reactive system, be separated the insolubles produced in acid-soluble reaction in these devices by coagulating sedimentation, press filtration, effectively control and reduce the insolubles content in a step liquid;
2) the present invention is provided with separate tank, is separated the device such as slag saving pond and flocculating agent formulation tank II in polymerization reaction system, insolubles is separated further in these devices by coagulating sedimentation, sedimentation, effective control and the insolubles content reduced in reaction solution, improve the seed output and quality of liquid poly aluminium chloride;
3) the present invention use acid-soluble reaction tank and polyreaction pond be sealing acid tolerance response pond, its pond body and Chi Gai are four-layer structure, four-layer structure comprises the bottom supporting mechanical strength, the surface layer ensureing bubble-tight middle layer and Heat-stable, make it have very strong acid resistance and stopping property, effectively can avoid acid liquor leakage and overflow containing sour waste gas;
4) pressure filter that the present invention adopts is the chamber-type press filter that automatically gathers materials, automatically the chamber-type press filter that gathers materials is provided with the liquid bath that connects be communicated with filter chamber and automatically collects filtrate, be provided with and just automatically filter residue collected to the dreg-accepting hopper of press filtration group, therefore efficiently filter residue, filtrate can automatically be collected, decrease cost of labor, improve working efficiency;
5) the present invention is provided with dry liquid high level tank, first by dry for the suction of liquid poly aluminium chloride liquid high level tank, high temperature dehydration drying is carried out to each drying unit of roller drying device by the dry liquid high level tank feed liquid that distributes, thus the object of uniform distribution is reached with succinct technical process efficiently, reduce energy consumption for drying cost;
6) roller drying device that the present invention uses is high-efficiency heat conduction oil formula roller drying device, this device adopts the form of spray to be sprayed onto on cylinder surface by thermal oil, form oil film and cylinder contact, at utmost can realize the contact area of thermal oil and cylinder surface, thus improve the efficiency of its heat exchange, realize maximum utilization to heat in thermal oil, can save energy, consumption reduction reduces discharging.
Accompanying drawing explanation
In order to make object of the present invention, technical scheme and beneficial effect clearly, the invention provides following accompanying drawing and being described:
Fig. 1 is the structural representation of acid-soluble reactive system;
Fig. 2 is the structural representation of polymerization reaction system;
Fig. 3 is the structural representation in the sealing acid tolerance response pond that the present invention uses;
Fig. 4 is the structural representation of dehumidification system;
Fig. 5 is the main TV structure schematic diagram of a roller drying device drying unit;
Fig. 6 is the left TV structure schematic diagram of a roller drying device drying unit;
Fig. 7 be drying drum and finished belt transfer roller with the use of structural representation.
Embodiment
Below in conjunction with accompanying drawing, the preferred embodiments of the present invention are described in detail.
The poly aluminium chloride of solid safely and efficiently production system of the present invention, comprises acid-soluble reactive system, polymerization reaction system and dehumidification system.
Fig. 1 is the structural representation of acid-soluble reactive system, and as shown in the figure, described acid-soluble reactive system comprises acid-soluble reaction tank 1, acid-soluble reaction tank transfer pond 2, flocculating agent formulation tank I 3, automatically to gather materials chamber-type press filter and a step liquid pool 4, the described chamber-type press filter that automatically gathers materials comprises frame 5, the hydraulic compressing device 7 being arranged on two crossbeams 6 in frame 5 and being arranged in frame 5, between two crossbeams 6, be provided with slurcocks 8 and stop plate 9, the press filtration group 10 be made up of several filter press plates is provided with between slurcocks 8 and prevention plate 9, every two pieces of filter press plates are combined into a filter chamber, filter chamber is provided with filter cloth, the described chamber-type press filter that automatically gathers materials also comprises and connects liquid pool 11, be arranged on the dreg-accepting hopper 13 connecing liquid bath 12 and be arranged at immediately below press filtration group 10 in frame 5, the described liquid bath 12 that connects is communicated with filter chamber by flexible pipe 14, describedly connect liquid pool 11 and connect liquid bath 12 and be communicated with, described acid-soluble reaction tank 1 is communicated with acid-soluble reaction tank transfer pond 2, flocculating agent formulation tank I 3 is communicated with acid-soluble reaction tank transfer pond 2, acid-soluble reaction tank transfer pond 2 is communicated with the chamber-type press filter that automatically gathers materials by the muddy material pump 15 of a step liquid, and the liquid pool 11 that connects of the chamber-type press filter that automatically gathers materials is communicated with a step liquid pool 4.
Fig. 2 is the structural representation of polymerization reaction system, as shown in the figure, described polymerization reaction system comprises polyreaction pond 16, transfer pond, polyreaction pond 17, cooling tower 18, separate tank 19, be separated slag saving pond 20, flocculating agent formulation tank II 21 and work in-process pond 22, a described step liquid pool 4 is communicated with polyreaction pond 16 by a step liquid transferpump 23, described polyreaction pond 16 is communicated with transfer pond, polyreaction pond 17, transfer pond, polyreaction pond 17 is communicated with the entrance of cooling tower 18 by modified liquid transferpump 24, the outlet of cooling tower 18 is communicated with separate tank 19, flocculating agent formulation tank II 21 is communicated with separate tank 19, the top of separate tank 19 is communicated with work in-process pond 22, the bottom of separate tank 19 be separated slag saving pond 20 and be communicated with, be separated slag saving pond 20 to be communicated with acid-soluble reaction tank 1 by being separated slag transferpump 25.
Fig. 4 is the structural representation of dehumidification system, Fig. 5 is the main TV structure schematic diagram of a roller drying device drying unit, Fig. 6 is the left TV structure schematic diagram of a roller drying device drying unit, Fig. 7 be drying drum and finished belt transfer roller with the use of structural representation, as shown in the figure, dehumidification system comprises dry liquid high level tank 31, roller drying device and finished belt transfer roller 32; Described roller drying device comprises several drying units, and each drying unit comprises drying drum 33, scraper 34, feed liquid dish 35, feed-pipe 36 and splicing plate 37; Described drying drum 33 comprises urceolus 331, inner core 332, oil inlet pipe 333, oil outlet pipe 334, splitter 335 and spray bar 336, described urceolus 331 is coated at inner core 332 and forms oil pocket 337 between urceolus 331 and inner core 332, described spray bar 336 is arranged in oil pocket 337 and spray bar 336 is provided with nozzle opening 338, described oil inlet pipe 333 one end is stretched into oil pocket 337 from urceolus 331 end face and is communicated with spray bar 336 by splitter 335, and oil pocket 337 is stretched into from urceolus 331 other end in described oil outlet pipe 334 one end; The blade of described scraper 34 is close to urceolus 331 outside surface, described feed liquid dish 35 to be arranged at below urceolus 331 and to be positioned at feed liquid dish 35 bottom urceolus 331, described feed-pipe 36 mouth of pipe is just to feed liquid dish 35, and described splicing plate 37 tilts to install, and splicing plate 37 is rectified scraper 34; Described work in-process pond 22 is communicated with dry liquid high level tank 31 by work in-process liquid pump 38, and dry liquid high level tank 31 is communicated with the feed-pipe 36 of roller drying device, and the splicing plate of roller drying device is rectified finished belt transfer roller 32 for 37 times.
Fig. 3 is the structural representation in the sealing acid tolerance response pond that the present invention uses, as shown in the figure, described acid-soluble reaction tank 1 and polyreaction pond 16 are sealing acid tolerance response pond, sealing acid tolerance response pond comprises pond body 101 and pond lid 102, pond body 101 and pond lid 102 include reinforced concrete floor 103, frp layer 104, Heat-stable ceramic tile layer 105 and acid resistant porcelain flaggy 106, frp layer 104, Heat-stable ceramic tile layer 105 and acid resistant porcelain flaggy 106 are located at inside reinforced concrete floor 103 successively, described pond lid 102 is provided with charging opening 107, Waste gas outlet 108 and vapor interface 109, described pond lid 102 is provided with agitator motor 110, the agitator be made up of stirring shaft 111 and agitating vane 112 is provided with in pond body 101, stirring shaft 111 is connected with agitator motor 110.
In the present embodiment, described acid-soluble reactive system also comprises slag wash trough 26, and the dreg-accepting hopper 13 of the described chamber-type press filter that automatically gathers materials is communicated with slag wash trough 26 by rotary conveyor 27; Dreg-accepting hopper 13 shape of the described chamber-type press filter that automatically gathers materials is the shape of falling truncated rectangular pyramids.
In the present embodiment, described acid-soluble reactive system also comprises tail gas absorber 28, be provided with gas skirt 29 directly over the press filtration group 10 of the described chamber-type press filter that automatically gathers materials, the exhaust gas entrance of described tail gas absorber 28 is communicated with the gas skirt 29 of the chamber-type press filter that automatically gathers materials with acid-soluble reaction tank 1, acid-soluble reaction tank transfer pond 2 respectively.
In the present embodiment, the pond lid 102 in described sealing acid tolerance response pond is connected by bolt 113 with between pond body 101, and pond lid 102 and the joint face of pond body 101 have sealing rubber ring 114; Pond body 101 and pond lid 102 are tightly connected, and ensure that the resistance to air loss of reaction tank.
In the present embodiment, the pond lid 102 in described sealing acid tolerance response pond is provided with access opening 115, and pond lid 102 is provided with water seal along access opening 115; Access opening water seal, further ensure that the resistance to air loss of reaction tank.
In the present embodiment, the pond body 101 in described sealing acid tolerance response pond is for being embedded in the circular pond body of underground, and pond body oral area flushes with terrace 116.
In the present embodiment, the agitating vane 112 in described sealing acid tolerance response pond is three layers along stirring shaft 111 axial array, and the superiors' agitating vane is the agitating vane of downward eddy flow, and lower two-layer agitating vane is the agitating vane to forward spin flow; The superiors' agitating vane makes the downward eddy flow of aqueous chemical raw material, lower two-layer agitating vane makes aqueous chemical raw material to forward spin flow, therefore make aqueous chemical raw material can form good turbulence state, substantially increase and be uniformly mixed efficiency, thus improve speed of reaction.
In the present embodiment, the nozzle opening 338 on described spray bar 336 is just to urceolus 331; Directly thermal oil is sprayed on urceolus 331 internal surface.
In the present embodiment, described urceolus 331 two end faces are respectively equipped with axle sleeve 339, and described oil inlet pipe 33 and oil outlet pipe 334 are each passed through axle sleeve 339 and are provided with sealing-ring 330 between body and axle sleeve; Axle sleeve 339 is set and sealing-ring 330 is to prevent thermal oil from leaking.
In the present embodiment, each drying unit also comprises the dust gathering arrester 30 be arranged at above urceolus 331; Dust gathering arrester 30 is to prevent dried pulverulent material from dispersing, causing product loss and contaminate environment.
In the present embodiment, the quantity of described drying unit is 20.
Production Flow Chart of the present invention is:
1, acid-soluble reaction: add hydrochloric acid in acid-soluble reaction tank 1, then the bauxitic clay of formula ratio is dropped into, reacting by heating, reaction product is taked to put into acid-soluble reaction tank transfer pond 2 from stream mode, the flocculation of poly-propionic acid amide flocculation agent is added by flocculating agent formulation tank I 3, then being pumped into by the muddy material pump 15 of a step liquid gathers materials in chamber-type press filter automatically, reaction tank product is carried out the separation of slag liquid; Filtrate is flowed into by flexible pipe 14 and connects liquid bath 12, then inflow connects in liquid pool 11, then flows in a step liquid pool 4; And filter residue directly falls in dreg-accepting hopper 13, be then delivered to slag wash trough 26 carrying out washing treatment; To absorb together with sour waste gas containing of volatilizing when pickling liquor press filtration operate during acid-soluble reaction to tail gas absorber 28 and dispose.
2, polyreaction: a step liquid pump is entered in polyreaction pond 16 by a step liquid transferpump 23, the reaction of formula ratio calcium aluminate is progressively dropped under agitation condition, after having reacted, material in cooling tower 18 after air cooling, enter separate tank 19 to add flocculation agent and carry out flocculation separation, after quiescent settling, supernatant liquor is put into work in-process pond 22; Flocculation separation slag pumps into acid-soluble reaction tank 1 from separation slag saving pond 20, when slag in acid-soluble reaction tank 1 reaches process stipulation disposal amount, add the reaction of formula ratio hydrochloric acid, sulfuric acid and water, after slag has reacted, material enters acid-soluble reaction tank transfer pond 2 by previous process flow process and carries out flocculation separation.
3. dry: in work in-process pond 22, work in-process liquid is by the dry liquid high level tank 31 of work in-process liquid pump 38 suction, carry out high temperature dehydration drying by dry liquid high level tank 31 feed liquid that distributes to each drying unit of roller drying device; When drying drum 33 works, thermal oil after heating is by oil pump supply oil inlet pipe 333, through splitter 335 and spray bar 336, then spray at urceolus 331 internal surface, urceolus 331 is heated, thermal oil is under the effect of self gravitation, progressively collect downwards, when the degree of depth of the thermal oil collected exceedes the height of oil outlet pipe 334, thermal oil is discharged through oil outlet pipe 334, urceolus 331 and inner core 332 rotate in the course of the work, oil inlet pipe 333 and oil outlet pipe 334 motionless; During urceolus 331 slow circumvolve after heat-conducting oil heating, liquid poly aluminium chloride in feed liquid dish 35 is that film like is attached to urceolus 331 outside surface, moisture is vaporized, fall apart in ambient air, the solid poly aluminium chloride being attached to urceolus 331 is scraped by scraper 34 in the form of sheets, drop on splicing plate 37 equably, be then slipped on finished belt transfer roller 32, the solid poly aluminium chloride product centralized collection conveying of multiple cylinder being produced by finished belt transfer roller 32.
What finally illustrate is, above preferred embodiment is only in order to illustrate technical scheme of the present invention and unrestricted, although by above preferred embodiment to invention has been detailed description, but those skilled in the art are to be understood that, various change can be made to it in the form and details, and not depart from claims of the present invention limited range.
Claims (10)
1. a solid poly aluminium chloride production system safely and efficiently, is characterized in that: described solid poly aluminium chloride production system comprises acid-soluble reactive system, polymerization reaction system and dehumidification system;
Described acid-soluble reactive system comprises acid-soluble reaction tank, acid-soluble reaction tank transfer pond, flocculating agent formulation tank I, automatically to gather materials chamber-type press filter and a step liquid pool, the described chamber-type press filter that automatically gathers materials comprises frame, rack-mounted two crossbeams and the hydraulic compressing device be arranged in frame, between two crossbeams, be provided with slurcocks and stop plate, the press filtration group be made up of several filter press plates is provided with between slurcocks and prevention plate, every two pieces of filter press plates are combined into a filter chamber, filter chamber is provided with filter cloth, the described chamber-type press filter that automatically gathers materials also comprises and connects liquid pool, be arranged on connecing liquid bath and being arranged at the dreg-accepting hopper immediately below press filtration group in frame, the described liquid bath that connects is communicated with filter chamber by flexible pipe, describedly connect liquid pool and connect liquid bath and be communicated with, described acid-soluble reaction tank is communicated with acid-soluble reaction tank transfer pond, flocculating agent formulation tank I is communicated with acid-soluble reaction tank transfer pond, acid-soluble reaction tank transfer pond is communicated with the chamber-type press filter that automatically gathers materials by the muddy material pump of a step liquid, and the liquid pool that connects of the chamber-type press filter that automatically gathers materials is communicated with a step liquid pool,
Described polymerization reaction system comprises polyreaction pond, polyreaction Chi Zhongzhuanchi, cooling tower, separate tank, be separated slag saving pond, flocculating agent formulation tank II and work in-process pond, a described step liquid pool is communicated with polyreaction pond by a step liquid transferpump, described polyreaction pond is communicated with polyreaction Chi Zhongzhuanchi, polyreaction Chi Zhongzhuanchi is communicated with the entrance of cooling tower by modified liquid transferpump, the outlet of cooling tower is communicated with separate tank, flocculating agent formulation tank II is communicated with separate tank, the top of separate tank is communicated with work in-process pond, the bottom of separate tank be separated slag saving pond and be communicated with, be separated slag saving pond to be communicated with acid-soluble reaction tank by being separated slag transferpump,
Described dehumidification system comprises dry liquid high level tank, roller drying device and finished belt transfer roller; Described roller drying device comprises several drying units, and each drying unit comprises drying drum, scraper, feed liquid dish, feed-pipe and splicing plate; Described drying drum comprises urceolus, inner core, oil inlet pipe, oil outlet pipe, splitter and spray bar, described urceolus is coated at inner core and forms oil pocket between urceolus and inner core, described spray bar is arranged in oil pocket and spray bar is provided with nozzle opening, described oil inlet pipe one end is stretched into oil pocket from urceolus end face and is communicated with spray bar by splitter, and oil pocket is stretched into from urceolus other end in described oil outlet pipe one end; The blade of described scraper is close to outer tube outer surface, and described feed liquid dish to be arranged at below urceolus and to be positioned at feed liquid dish bottom urceolus, and the described feed-pipe mouth of pipe is just to feed liquid dish, and described splicing plate tilts to install, and splicing plate is rectified scraper; Described work in-process pond is communicated with dry liquid high level tank by work in-process liquid pump, and dry liquid high level tank is communicated with the feed-pipe of roller drying device, rectifies finished belt transfer roller under the splicing plate of roller drying device;
Described acid-soluble reaction tank and polyreaction pond are sealing acid tolerance response pond, sealing acid tolerance response pond comprises pond body and Chi Gai, pond body and Chi Gai include reinforced concrete floor, frp layer, Heat-stable ceramic tile layer and acid resistant porcelain flaggy, frp layer, Heat-stable ceramic tile layer and acid resistant porcelain flaggy are located at inside reinforced concrete floor successively, described pond covers and is provided with charging opening, Waste gas outlet and vapor interface, described pond covers and is provided with agitator motor, be provided with the agitator be made up of stirring shaft and agitating vane in the body of pond, stirring shaft is connected with agitator motor.
2. the poly aluminium chloride of solid safely and efficiently production system according to claim 1, is characterized in that: described acid-soluble reactive system also comprises slag wash trough, and the dreg-accepting hopper of the described chamber-type press filter that automatically gathers materials is communicated with slag wash trough by rotary conveyor.
3. the poly aluminium chloride of solid safely and efficiently production system according to claim 2, is characterized in that: the dreg-accepting hopper shape of the described chamber-type press filter that automatically gathers materials is the shape of falling truncated rectangular pyramids.
4. the poly aluminium chloride of solid safely and efficiently production system according to claim 1, it is characterized in that: described acid-soluble reactive system also comprises tail gas absorber, be provided with gas skirt directly over the press filtration group of the described chamber-type press filter that automatically gathers materials, the exhaust gas entrance of described tail gas absorber is communicated with the gas skirt of the chamber-type press filter that automatically gathers materials with acid-soluble reaction tank, acid-soluble reaction tank transfer pond respectively.
5. the poly aluminium chloride of solid safely and efficiently production system according to claim 1, is characterized in that: be bolted between the Chi Gai in described sealing acid tolerance response pond and pond body, the joint face of Chi Gai and pond body has sealing rubber ring.
6. the poly aluminium chloride of solid safely and efficiently production system according to claim 1, is characterized in that: the pond in described sealing acid tolerance response pond covers and is provided with access opening, and pond covers and is provided with water seal along access opening.
7. the poly aluminium chloride of solid safely and efficiently production system according to claim 1, is characterized in that: the Chi Tiwei in described sealing acid tolerance response pond is embedded in the circular pond body of underground, and pond body oral area flushes with terrace.
8. the poly aluminium chloride of solid safely and efficiently production system according to claim 1, it is characterized in that: the agitating vane in described sealing acid tolerance response pond is three layers along stirring shaft axial array, the superiors' agitating vane is the agitating vane of downward eddy flow, and lower two-layer agitating vane is the agitating vane to forward spin flow.
9. the poly aluminium chloride of solid safely and efficiently production system according to claim 1, it is characterized in that: the nozzle opening on described spray bar is just to urceolus, described urceolus two end faces are respectively equipped with axle sleeve, and described oil inlet pipe and oil outlet pipe are each passed through axle sleeve and are provided with sealing-ring between body and axle sleeve.
10. the poly aluminium chloride of solid safely and efficiently production system according to claim 1, is characterized in that: each drying unit also comprises the dust gathering arrester be arranged at above urceolus, and the quantity of described drying unit is 20.
Priority Applications (1)
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0769473A1 (en) * | 1995-10-20 | 1997-04-23 | Rhone-Poulenc Chimie | Method for producing basic polyaluminium chloride and its use for the treatment of aqueous media |
| CN101284678A (en) * | 2008-05-04 | 2008-10-15 | 江门慧信环保股份有限公司 | Continuous production process for polyaluminium chloride and production equipment |
| CN201236155Y (en) * | 2008-05-04 | 2009-05-13 | 江门慧信环保股份有限公司 | Continuous production equipment for polyaluminium chloride |
| CN201665541U (en) * | 2009-12-30 | 2010-12-08 | 崔俊魁 | Electromagnetic heating polyaluminium chloride drying dewaterer |
| CN203741057U (en) * | 2013-12-31 | 2014-07-30 | 重庆蓝洁广顺净水材料有限公司 | Safe and efficient solid polyaluminium chloride production system |
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0769473A1 (en) * | 1995-10-20 | 1997-04-23 | Rhone-Poulenc Chimie | Method for producing basic polyaluminium chloride and its use for the treatment of aqueous media |
| CN101284678A (en) * | 2008-05-04 | 2008-10-15 | 江门慧信环保股份有限公司 | Continuous production process for polyaluminium chloride and production equipment |
| CN201236155Y (en) * | 2008-05-04 | 2009-05-13 | 江门慧信环保股份有限公司 | Continuous production equipment for polyaluminium chloride |
| CN201665541U (en) * | 2009-12-30 | 2010-12-08 | 崔俊魁 | Electromagnetic heating polyaluminium chloride drying dewaterer |
| CN203741057U (en) * | 2013-12-31 | 2014-07-30 | 重庆蓝洁广顺净水材料有限公司 | Safe and efficient solid polyaluminium chloride production system |
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