CN105837711B - It can carry out the sour production of chlorinated polyethylene system mutually to suspend and water phase suspension switches - Google Patents
It can carry out the sour production of chlorinated polyethylene system mutually to suspend and water phase suspension switches Download PDFInfo
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- CN105837711B CN105837711B CN201610371175.2A CN201610371175A CN105837711B CN 105837711 B CN105837711 B CN 105837711B CN 201610371175 A CN201610371175 A CN 201610371175A CN 105837711 B CN105837711 B CN 105837711B
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L101/00—Compositions of unspecified macromolecular compounds
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F8/00—Chemical modification by after-treatment
- C08F8/18—Introducing halogen atoms or halogen-containing groups
- C08F8/20—Halogenation
- C08F8/22—Halogenation by reaction with free halogens
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G8/00—Condensation polymers of aldehydes or ketones with phenols only
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- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
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- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J161/00—Adhesives based on condensation polymers of aldehydes or ketones; Adhesives based on derivatives of such polymers
- C09J161/04—Condensation polymers of aldehydes or ketones with phenols only
- C09J161/06—Condensation polymers of aldehydes or ketones with phenols only of aldehydes with phenols
- C09J161/14—Modified phenol-aldehyde condensates
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- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
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Abstract
The present invention provides a kind of production of chlorinated polyethylene system carrying out sour mutually suspension and water phase suspension switching, belongs to chemical equipment technical field.Including reaction kettle, washing kettle, neutralization kettle, dealkalize kettle, centrifuge and the boiling-bed drying being sequentially connected；The production system further includes at least one hydrochloric acid tank；The washing kettle includes washing kettle ontology and agitating device；It is equipped with the filter communicated with washing kettle body interior on the side wall of washing kettle ontology, is equipped with washing kettle discharge port in the bottom of washing kettle ontology, the washing kettle discharge port is connected to neutralization kettle, and the filter is connected to sewage-treatment plant by blow-off pipe；The blow-off pipe is equipped with triple valve, and the bypass interface of triple valve is connected to the hydrochloric acid tank by pipeline, and the outlet of the hydrochloric acid tank is connected to the reaction kettle.The present invention can carry out acid phase process and Aqueous phase switching production, the wasting of resources, efficent use of resources avoided to increase economic benefit flexibly according to the market situation of hydrochloric acid.
Description
【Technical field】
The present invention relates to chemical equipment technical fields, and in particular to one kind can carry out sour mutually suspend and water phase suspension switching
Production of chlorinated polyethylene system.
【Background technology】
Haloflex, chemical name CPE, for be saturated high molecular material, have excellent stability, weatherability, resistance to ozone,
Chemical-resistant resistance and ageing-resistant performance are widely used in the fields such as plastics, rubber, building materials, electromechanics, automobile, military project.Currently, chlorination
Polyethylene (CPE) production technology has water phase suspension, sour phase suspension method, solid phase method and solwution method.Acid will be generally used below
Phase suspension method and water phase suspension are described below:
Sour phase suspension method is that high density polyethylene (HDPE) (High Density Polyethylene, referred to as " HDPE ") is outstanding
Float on and carry out chlorination in the hydrochloric acid solution of a concentration of 10-20%, then with the continuous depickling of plane rotary disc vacuum filter, wash, go out
Material finally passes in and out centrifugation, drying to the wet feed after depickling and grinds to obtain CPE finished products.This method is mainly characterized by three waste discharge
Small, simple for process, product quality is stablized, and generated concentration of hydrochloric acid can be recycled 28% or more；But turntable vacuum mistake
Filter and centrifugal drying equipment investment cost are very high, and the material after drying steps is also relatively thick, need to its into
Row grinding, process of lapping is a process of very power consumption, and general one ton of material needs 1000 degree of electricity left and right, therefore, is produced into
This is also higher.
Equipment investment expense just because of sour phase suspension method is too high, and more producers are more willing to use water phase suspension.
The water phase suspension that the country generally uses includes mainly chlorination, depickling, neutralization, dealkalize, centrifugation, drying, crushing and mixing
Pack this several step.
1, chlorination:It according to the size of " chlorination tank ", is added in suitable water purification to " chlorination tank ", auxiliary agent and height is then added
Density polyethylene (High Density Polyethylene, referred to as " HDPE ") PP Pipe Compound, is passed through after being warming up to certain temperature
Chlorine is reacted (generally use three-stage leads to chlorine), is the process of heat preservation and cooling after having reacted.
2, depickling:It is that the material of chlorination is transferred to depickling kettle to carry out depickling, the process of depickling generally comprises two kinds：(1)
Many times add is washed, and is that reaction kettle transfer is moved past the CPE materials come, sour water is released by filter, certain when being put into
After water level slurry oneself through very thick, be then shut off filter valve, water added to previous water level, repeated multiple times washing；(2) add on one side
Water discharges water on one side.", the process of depickling is actually a kind of diluted process, and water consumption is huge, and generates a large amount of low concentration of salt
Sour waste water.
3, it neutralizes:Enter inside CPE the hydrochloric acid neutralized inside CPE materials by alkali by heating plus alkali, until test paper is surveyed
When examination material is few containing acid, this process just calculates completion, this process generally requires 4 hours or more, it is sometimes desirable to 7-8 hour, very
It is extremely longer.After the completion of neutralization, then material is transferred in dealkalize kettle.
4, dealkalize:It is similar with deacidification, lye is bled off by strainer, clear water cleaning is added and completes several times, retransfers
To centrifuge.This process generally than depickling when the time used it is short very much, probably in or so 1 hour.
5, it centrifuges:Rotary process is that material and moisture content are separated, and is left the parts CPE, transfers in boiling-bed drying.
Centrifuge employed in this step is generally stainless steel, and acid resistance is poor.
6, dry:Material CPE is dried with boiling-bed drying.Drying bed employed in this step is generally stainless
Steel material, acid resistance are poor.
7, hybrid packed:A certain proportion of interleaving agent (calcium carbonate) is added, in batch mixer in dried CPE semi-finished product
It is uniformly mixed, you can be packaged into CPE finished products.
The manufacturer of haloflex domestic at present be all solely use a set of equipment carry out sour phase suspension method and
The production of water phase suspension, sour phase suspension method can be recycled hydrochloric acid, water phase suspension since concentration of hydrochloric acid is relatively low,
It can only fall as wastewater treatment, and the price of hydrochloric acid can be with the business fluctuations in market, when market conditions depression, acid mutually suspends
Method can not also generate enough economic values to the recycling of hydrochloric acid；When hydrochloric acid higher price, water phase suspension directly will
Diluted acid is as wastewater treatment and a kind of waste of resource.
【Invention content】
The goal of the invention of the present invention is：In view of the above problems, sour mutually suspension and water phase can be carried out by providing one kind
The production of chlorinated polyethylene system of suspension method switching can flexibly carry out acid phase process and water flexibly according to the market situation of hydrochloric acid
Phase method switches, and the wasting of resources, efficent use of resources is avoided to increase economic benefit.
To achieve the goals above, the technical solution adopted by the present invention is as follows：
Can carry out it is sour mutually suspend and the production of chlorinated polyethylene system of water phase suspension switching, including what is be sequentially connected be used for
The reaction kettle of chlorination reaction, the washing kettle for washing deacidification, the neutralization kettle for neutralizing deacidification, the dealkalize for washing dealkalize
Kettle, for the centrifuge of dehydration and for dry boiling-bed drying；The production system further includes at least one hydrochloric acid tank；
The washing kettle includes washing kettle ontology and agitating device；It is equipped with and washing kettle body interior phase on the side wall of washing kettle ontology
Logical filter is equipped with washing kettle discharge port in the bottom of washing kettle ontology, and the washing kettle discharge port is connected to neutralization kettle, described
Filter is connected to sewage-treatment plant by blow-off pipe；The blow-off pipe is equipped with triple valve, and the bypass interface of triple valve passes through
Pipeline is connected to the hydrochloric acid tank, and the outlet of the hydrochloric acid tank is connected to the reaction kettle.
Using above-mentioned production system, when hydrochloric acid market are bad, after producing hydrochloric acid using Aqueous phase, by the hydrochloric acid of washing kettle
Direct discharging of waste water is disposed to wastewater treatment equipment；When hydrochloric acid market are preferable, after producing hydrochloric acid using Aqueous phase, water is opened
Hydrochloric acid waste water (concentration of hydrochloric acid 8-10%) will be obtained by the reaction and send to hydrochloric acid tank by washing the bypass valve for the triple valve that kettle is connected
It stores, after the completion of the aqueous-phase suspending production schedule, the hydrochloric acid waste water in hydrochloric acid tank is sent by pumping in reaction kettle, carry out
Sour phase suspension method reaction, hydrochloric acid waste water (concentration of hydrochloric acid 25-28%) obtained by the reaction is sold by market price.Therefore the present invention
By increasing hydrochloric acid tank and being improved to pipeline, so as to realize the switching production of acid phase process and Aqueous phase, certainly,
When carrying out the production of acid phase process using this system, the process subsequently to deacidify is not being connected with vacuum filter using Germany technology
Continuous depickling, washing, discharging, finally to wet feed disengaging centrifugation, the dry and grinding after depickling；But use the water of this system
It washes, neutralize, the process of dealkalize, centrifugation, drying.
Further, the phenomenon that caking being susceptible in each process procedure due to haloflex intermediate material.Object
Material, which produces caking, to cause product to lose, and reduce yield, increase production cost, and more seriously it is next process
Normal production brings very serious influence, causes the blockings such as pipe-line equipment, and subsequent production is made to be difficult to carry out, therefore, this hair
It is bright to be also additionally provided with filter between the dealkalize kettle and centrifuge.The filter include filter chamber, the first filter plate,
The second filter plate intersected with the first filter plate, the filter chamber are separated into the adjacent charging in left and right by first filter plate
Room, discharge chamber；Second filter plate in the tilted setting of feed space, and by feed space be separated into neighbouring upper chamber and
Lower chambers；The upper chamber is equipped with feed inlet, flush port and the coarse fodder outlet being in communication with the outside, and the discharge chamber is equipped with and the external world
The discharge port of connection；Low side of the coarse fodder outlet next to the first filter plate.Since haloflex caking material has it certainly
The characteristics of body, it can be side that the size of through-hole, which also has certain requirement, through-hole, the characteristics of according to its size and shape, on filter plate
The diamond shape through-hole of a length of 0.6-1.5cm, the elliptical hole that long axis 1.0-1.5cm, short axle are 0.6-1.2cm, aperture 0.6-
The circular through hole of 1.5cm, the length of side are one or more combinations in 0.6-1.5cm rectangular through-holes.It can using the filter
The coarse fodder that generates in removal production process avoids the blocking of pipeline, and the releasing for the coarse fodder that lumps also very convenient power-saving.
Further, the boiling-bed drying includes drying bed ontology, into hot air apparatus, cyclone separator and air exhausting device；
Described into hot air apparatus includes air blower, storage heater, and the storage heater passes through intake stack and the drying bed sheet
The bottom of body is connected to；The air exhausting device includes air-introduced machine, wind pipe and air inducing pipeline, and the top of the drying bed ontology is logical
It crosses the wind pipe to be connected to cyclone separator, the air-introduced machine is connected to by the air inducing pipeline with cyclone separator；Institute
It states and offers inlet port and outlet port on the side wall of drying bed ontology, sieve plate is equipped in drying bed ontology, the drying bed also wraps
Include stirring dispersing device, the stirring dispersing device includes that the stirring power device being arranged below drying bed ontology, setting exist
The stirring blade of drying bed body interior and the shaft for connecting stirring power device and stirring blade；The stirring blade is located at
The top of sieve plate, the vertical range with sieve plate are 0.5-50mm.
Further, the surface of the stirring blade is equipped with hairbrush or several equally distributed protrusions.
Further, the bottom of the cyclone separator is equipped with Blowing stopper, and Blowing stopper is exported with feed back；The drying bed
Feed back entrance is additionally provided on the side wall of ontology, the spatial position of the feed back outlet in the vertical direction is higher than feed back entrance, institute
Feed back outlet is stated to be connected to by the return pipeline being obliquely installed between feed back entrance；The feed back outlet also passes through Venturi tube
It is connect with feed back wind turbine, the Venturi tube and return pipeline are on the same line.
Further, the Venturi tube is inlet end close to one end of feed back wind turbine, and the other end is outlet side；The drum
It is connected to by blowing line between wind turbine and storage heater, blast connection is additionally provided on the blowing line, blast connection connects
It is connected to the outlet side of the Venturi tube.
Further, tail gas absorber, the entrance and cyclone separator of tail gas absorber are additionally provided on the air inducing pipeline
It is connected to by pipeline, the outlet of the tail gas absorber is connected to by pipeline with air-introduced machine.
Further, the drying bed ontology includes anti-corrosion internal layer, intermediate enhancing structure layer and the anti-aging outer layer of appearance；Institute
State anti-corrosion internal layer by gelatin jet on mold after be formed by curing；The intermediate enhancing structure layer is by glue and glass fabric
Bonding is alternately covered to be combined；It according to mass ratio is 100 that the anti-aging outer layer of appearance, which is by glue and age resister,:2-3
It is formed by curing after being injected in intermediate enhancing structure layer surface after mixing；
The wherein described glue includes the raw material of following parts by weight：60-80 parts of vinylite, gathers 15-20 parts of furfuryl alcohol resin
6-10 parts of isobutene, 30-45 parts of sepiolite fibre, 2-3 parts of polyethylene glycol methacrylate-styrene polymer copolymer, diaminodiphenylmethane
3-5 parts, 15-25 parts of 1,4- butanediol diglycidyl ethers, 6-8 parts of boron modified phenolic resin adhesive, graphite powder 0.5-0.8
Part；The boron modified phenolic resin adhesive is made by the raw material of following parts by weight：90-110 parts of phenol, first
20-30 parts of aldehyde, 5-8 parts of zinc borate, 3-5 parts of barium hydroxide, 2-3 parts of aniline, 2-3 parts of A151 silane coupling agents, tackifying resin 4-6
Part.The production method of the boron modified phenolic resin adhesive is：It gets out 90-110 parts of phenol, formaldehyde 20-30 by weight
Part, 5-8 parts of zinc borate, 3-5 parts of barium hydroxide, 2-3 parts of aniline, 2-3 parts of A151 silane coupling agents, 4-6 parts of tackifying resin；By benzene
5-8 parts of 90-110 parts of phenol, 5-8 parts of formaldehyde and zinc borate are added in reaction kettle, and barium hydroxide is added in reaction kettle while stirring
3-5 parts are made composite catalyst with 2-3 parts of aniline, are stirred 15-20 minutes；Then reaction kettle is warming up to 75-80 DEG C of reaction 50-
60min；It is warming up to 85 DEG C again, the formaldehyde of remainder is added, reacts 20-30 minutes；Then stop heating, adjusted with oxalic acid anti-
It is neutrality to answer the pH value in kettle, when being down to 40 DEG C or less at the temperature in reaction kettle, 2-3 parts of A151 silane coupling agents of addition,
4-6 parts of tackifying resin stirring 20-30min, then filtering and discharging is to get to boron modified phenolic resin adhesive.
It is 1-2 that the age resister, which is phthalic acid with benzotriazole according to weight ratio,:1 composition
The above-mentioned material improvement to drying bed adjusts glue medium vinyl tree by the selection and cooperation of glue raw material
Fat, furfuryl alcohol resin, polyisobutene, sepiolite fibre, antistatic agent, curing agent, diluent resin, boron modified phenolic resin gluing
Weight ratio between agent, graphite powder can make corrosion resistance, antistatic effect, high temperature resistance, the intensity of drying bed entirety
It is satisfied by production requirement with toughness.And the boron modification resin used in it is obtained by phenolic resin modified, high with viscosity,
Caking property is strong, corrosion-resistant and heat safe performance, together with polyisobutene addition can have good melt between each raw material
Conjunction property, promotes the homogeneity and overall performance of fiberglass.
In conclusion by adopting the above-described technical solution, the beneficial effects of the invention are as follows：
1, the present invention is by increasing hydrochloric acid tank and being improved to pipeline, so as to realize acid phase process and Aqueous phase
Switching production, hydrochloric acid waste water can be recycled according to the market of hydrochloric acid or direct emission, it is better to realize
Economic benefit.
2, design is scientific and reasonable for filter used in the present invention, can remove the coarse fodder generated in production process, keep away
Exempt from the blocking of pipeline, and the releasing for the coarse fodder that lumps also very convenient power-saving.
3, agitating device is arranged in the present invention in boiling-bed drying, by the effect of breaing up of stirring blade, material is prevented to exist
Condensation, to reduce the number of cleaning sieve plate, improves production to block the through-hole on sieve plate or be bonded on sieve plate on sieve plate
Efficiency.Since the general height of boiling-bed drying is higher, and sieve plate is located at drying bed lower part, so the power plant of blender is set
It sets in the lower section of boiling-bed drying, to keep stirring shaft long, a part of power can be saved.
4, the present invention is by being arranged feed back wind turbine, Venturi tube and the return pipeline being obliquely installed so that cyclone separator
The material fallen can return in drying bed body the blocking for continuing drying, and will not forming material in time, relative to being not provided with text
Venturi, wind speed of the present invention faster, can reduce the energy consumption of feed back wind turbine.The present invention with blast connection also by being connected to Venturi tube
And air blower, the negative pressure formed using Venturi tube can efficiently use the wind of air blower, to which the compression for reducing feed back wind turbine is empty
Gas dosage plays better energy-saving effect.
【Description of the drawings】
Fig. 1 is the connection relationship diagram of the production system of the present invention；
Fig. 2 is the structural schematic diagram of boiling-bed drying in the present invention；
Fig. 3 is the enlarged drawing in the portions A in boiling-bed drying in the present invention；
Fig. 4 is the external structure schematic diagram of filter in the present invention；
Fig. 5 is the internal structure schematic diagram of filter in the present invention.
Wherein, 1- hydrochloric acid tanks, 2- reaction kettles, 3- washing kettles, 31- filters, in 4- and kettle, 5- dealkalize kettles, 6- filters,
61- discharge chambers, 62- feed inlets, 63- flush ports, 64- feed spaces, 65- upper chamber, 66- lower chambers, the outlet of 67- coarse fodders, 68- the
One filter plate, the second filter plates of 69-；7- centrifuges, 8- boiling-bed dryings, 81- drying bed ontologies, 82- air blowers, 83- stirrings
Power plant, 84- stirring blades, 85- sieve plates, 86- tail gas absorbers, 87- cyclone separators, 88- air-introduced machines, 89- hot winds add
Hot device, 871- Blowing stoppers, 872- feed back wind turbines, 873- Venturi tubes, 9- sewage-treatment plants, 10- triple valves.
【Specific implementation mode】
Below by way of specific implementation mode and in conjunction with attached drawing, the invention will be further described.
As shown in Figure 1, for the production of chlorinated polyethylene system for carrying out sour mutually suspension and water phase suspension switching of the present invention
The schematic diagram of system, can carry out in figure it is sour mutually suspend and the production of chlorinated polyethylene system of water phase suspension switching, including phase successively
Even for the reaction kettle 2 of chlorination reaction, the washing kettle 3 for wash deacidification, for neutralizing the neutralization kettle 4 to deacidify, for water
Elute the dealkalize kettle 5 of alkali, the filter 6 for removing coarse fodder, for the centrifuge 7 of dehydration and for dry boiling-bed drying
8；The production system further includes at least one hydrochloric acid tank 1；The washing kettle 3 includes washing kettle ontology and agitating device；
The side wall of washing kettle ontology is equipped with the filter 31 communicated with washing kettle body interior, and washing is equipped in the bottom of washing kettle ontology
Kettle discharge port, the washing kettle discharge port, which is connected to, neutralizes kettle 4, and the filter 31 is connected to sewage-treatment plant by blow-off pipe
9；The blow-off pipe is equipped with triple valve 10, and the bypass interface of triple valve 10 is connected to the hydrochloric acid tank 1 by pipeline, described
The outlet of hydrochloric acid tank 1 is connected to the reaction kettle 2.
As shown in Figures 2 and 3, it is the structural schematic diagram and partial enlarged view of the boiling-bed drying, the boiling is dry
Dry bed includes drying bed ontology 81, into hot air apparatus, cyclone separator 87 and air exhausting device；It is described into hot air apparatus include air blast
Machine 82, storage heater 89, the storage heater 89 are connected to by intake stack with the bottom of the drying bed ontology 81；Institute
It includes air-introduced machine 88, wind pipe and air inducing pipeline to state air exhausting device, and the top of the drying bed ontology 81 passes through the outlet air
Pipeline is connected to cyclone separator 87, and the top of the cyclone separator 87 is connected by the air inducing pipeline and tail gas absorber 86
Air-introduced machine 88 is connected to after logical, entrance and the cyclone separator of tail gas absorber 86 lead to 87 pipings and be connected to, the tail gas absorption
The outlet of device 86 is connected to by pipeline with air-introduced machine 88.By device for absorbing tail gas 86, can will come out from boiling-bed drying
Acid gas absorbs, to reduce the discharge of exhaust gas.Feed inlet 812 and discharge port are offered on the side wall of the drying bed ontology 81
813, drying bed ontology 81 is interior to be equipped with sieve plate 85, and the drying bed further includes stirring dispersing device, the stirring dispersing device packet
It includes the stirring power device 82 being arranged below drying bed ontology, stirring blade 84 and the company in drying bed body interior is set
Connect the shaft of stirring power device and stirring blade；The stirring blade 84 is located at the top of sieve plate 85, vertical with sieve plate 85
Distance is 0.5-50mm.Preferably, the surface of the stirring blade is equipped with hairbrush or several equally distributed protrusions.
In order to recycle the material that cyclone separator is fallen, boiling-bed drying of the invention is additionally provided with feeding back device, specifically
By being realized with lower structure：The bottom of the cyclone separator 87 is equipped with Blowing stopper 871, and Blowing stopper is exported with feed back；It is described
Feed back entrance 811 is additionally provided on the side wall of drying bed ontology 81, the spatial position of the feed back outlet in the vertical direction is higher than
Feed back entrance 811, the feed back outlet are connected to between feed back entrance 811 by the return pipeline being obliquely installed；The feed back
Outlet is also connect by Venturi tube 873 with feed back wind turbine 872, and it is straight that the Venturi tube 873 with return pipeline is in same
On line.For convenience, the Venturi tube is known as inlet end close to one end of feed back wind turbine 872, the other end is outlet
End；It is connected to by blowing line between the air blower 82 and storage heater 89, air blast branch is additionally provided on the blowing line
Pipe, blast connection are connected to the outlet side of the Venturi tube 873.The negative pressure formed using Venturi tube 873, can efficiently use
The wind of air blower 82 plays better energy-saving effect to reduce the compressed air dosage of feed back wind turbine 872.
As shown in Figure 4 and Figure 5, it is the external structure schematic diagram and internal structure schematic diagram of filter 6.The filter 6
Including filter chamber, the first filter plate 68, the second filter plate 69 intersected with the first filter plate 68, the filter chamber is by described first
Filter plate 68 is separated into the adjacent feed space 64 in left and right, discharge chamber 61；Second filter plate 69 in the tilted setting of feed space,
And feed space 64 is separated into neighbouring upper chamber 65 and lower chambers 66；The upper chamber 65 be equipped be in communication with the outside into
Material mouth 62, flush port 66 and coarse fodder outlet 67, the discharge chamber 61 is equipped with the discharge port (not shown) being in communication with the outside；Institute
State the low side that coarse fodder outlet 67 is located next to the first filter plate 68.Since haloflex solution block has the characteristics that its own, root
The characteristics of according to its size and shape, it can be that the length of side is 0.6- that the size of through-hole, which also has certain requirement, through-hole, on filter plate
The diamond shape through-hole of 1.5cm, the elliptical hole that long axis 1.0-1.5cm, short axle are 0.6-1.2cm, aperture are the circle of 0.6-1.5cm
Shape through-hole, the length of side are one or more combinations in 0.6-1.5cm rectangular through-holes.Production can be removed using the filter 6
The coarse fodder generated in the process, avoids the blocking of pipeline, and the releasing for the coarse fodder that lumps also very convenient power-saving.
Improvement through the invention may be implemented when hydrochloric acid market are preferable, after producing hydrochloric acid using Aqueous phase, open water
Wash the triple valve 10 that kettle is connected bypass valve will be obtained by the reaction hydrochloric acid waste water (concentration of hydrochloric acid 8-10%) send to hydrochloric acid store up
Tank 8 stores, and after the completion of the aqueous-phase suspending production schedule, the hydrochloric acid waste water in hydrochloric acid tank 8 is sent by pumping to reaction kettle 1
In, sour phase suspension method reaction is carried out, the spent acid of water phase suspension is not only utilized, moreover it is possible to by sour phase suspension method salt obtained by the reaction
Sour waste water (concentration of hydrochloric acid 25-28%) is sold by market price, obtains economic value.
Although improvement part of the invention is simultaneously uncomplicated, to those skilled in the art, which overcomes tradition
Concept, the pattern of single water phase suspension and acid suspension method can only be carried out by having broken factory, and in economize on electricity, return
It receives and is better than existing device and method using resource, time saving aspect, be with innovative innovation and creation.
In general, liner enamel may be used in haloflex chlorinating container, washing kettle, neutralization kettle, dealkalize kettle
Equipment, however the service life of equipment of liner enamel is short, and be easily damaged, it is not suitable for boiling-bed drying, haloflex object
Material is easy friction with drying bed under fluidized state and generates electrostatic, produce reality is also corrosion-resistant to boiling-bed drying, it is antistatic,
Wear-resisting, heat safe requirement.Boiling-bed drying used in the present invention may be used following material and make.
Embodiment 1
The anlistatig fiberglass boiling-bed drying of acid resistance obtained by the following method is particularly suitable for answering in the present invention
With.Its specific production method is：
(1) boron modified phenolic resin adhesive is prepared
Boron modified phenolic resin adhesive is made by the raw material of following parts by weight：It gets out benzene by weight
90 parts of phenol, 20 parts of formaldehyde, 5 parts of zinc borate, 3 parts of barium hydroxide, 2 parts of aniline, 2 parts of A151 silane coupling agents, tackifying resin EVA 4
Part；5 parts of 90 parts of phenol, 5 parts of formaldehyde and zinc borate are added in reaction kettle, barium hydroxide 3 is added in reaction kettle while stirring
2 parts of part and aniline make composite catalyst, stir 15 minutes；Then reaction kettle is warming up to 75 DEG C of reaction 50min；It is warming up to 85 again
DEG C, the formaldehyde of remainder is added, reacts 20 minutes；Then stop heating, it is neutrality to adjust the pH value in reaction kettle with oxalic acid,
When being down to 40 DEG C or less at the temperature in reaction kettle, 4 parts of 2 parts of A151 silane coupling agents, tackifying resin SBS stirrings are added
20min, then filtering and discharging is to get to boron modified phenolic resin adhesive.Gained boron modified phenolic resin adhesive dissociates
Phenol is less than 8%, and free formaldehyde is less than 1.2%.
(2) ratio prepares glue raw material by weight：60 parts of vinylite, 15 parts of furfuryl alcohol resin, 6 parts of polyisobutene,
30 parts of sepiolite fibre, 2 parts of antistatic agent polyethylene glycol methacrylate-styrene polymer copolymer, 3 parts of diaminodiphenylmethane, resin are dilute
It is 15 parts of propylene oxide o-cresyl ether, 6 parts of boron modified phenolic resin adhesive, 0.5 part of graphite powder to release agent diluent resin；With
High speed dispersor stirs 5min with the linear velocity of 15m/s, obtains glue.By glue by the demand point of internal layer, middle layer and outer layer
At 3 parts, respectively internal layer glue, middle layer glue and outer layer glue, according to the matter of glue and age resister in outer layers glue
Amount is than being 100:2 be uniformly mixed it is spare, wherein it is 1 that age resister, which is phthalic acid with benzotriazole according to weight ratio,:1 composition.
(3) drying bed anti-corrosion internal layer is made by the way of injection, the thickness of internal layer is 0.5mm-2mm, this implementation
Example is 1mm；Then middle layer glue is put into dipping tank, after the solidification of internal layer glue, using winding unit, uses glass fibre
The mode that cloth is Stagger-wraped on one side impregnate glue while is fabricated to intermediate enhancing structure layer；Finally in intermediate enhancing structure layer surface
The mixture of one layer of glue and age resister is sprayed, forms the anti-aging outer layer of appearance after cured, the thickness of outer layer is 0.5mm-
2mm, the present embodiment 1mm.
Embodiment 2
The anlistatig fiberglass boiling-bed drying of acid resistance obtained by the following method is particularly suitable for answering in the present invention
With.Its specific production method is：
(1) boron modified phenolic resin adhesive is prepared
Boron modified phenolic resin adhesive is made by the raw material of following parts by weight：It gets out benzene by weight
110 parts of phenol, 30 parts of formaldehyde, 8 parts of zinc borate, 5 parts of barium hydroxide, 3 parts of aniline, 3 parts of A151 silane coupling agents, tackifying resin EVA
6 parts；8 parts of 110 parts of phenol, 8 parts of formaldehyde and zinc borate are added in reaction kettle, barium hydroxide is added in reaction kettle while stirring
5 parts are made composite catalyst with 3 parts of aniline, are stirred 20 minutes；Then reaction kettle is warming up to 80 DEG C of reaction 50min；It is warming up to again
85 DEG C, the formaldehyde of remainder is added, reacts 30 minutes；Then stop heating, in being with the pH value in oxalic acid adjusting reaction kettle
Property, when being down to 40 DEG C or less at the temperature in reaction kettle, 6 parts of 3 parts of A151 silane coupling agents, tackifying resin stirrings are added
30min, then filtering and discharging is to get to boron modified phenolic resin adhesive.Gained boron modified phenolic resin adhesive dissociates
Phenol is less than 8%, and free formaldehyde is less than 1.2%.
(2) ratio prepares glue raw material by weight：80 parts of vinylite, 20 parts of furfuryl alcohol resin, 10 parts of polyisobutene,
45 parts of sepiolite fibre, 3 parts of antistatic agent polyethylene glycol methacrylate-styrene polymer copolymer, 5 parts of diaminodiphenylmethane, resin are dilute
It is 25 parts of polypropylene glycol diglycidyl ether, 8 parts of boron modified phenolic resin adhesive, 0.8 part of graphite powder to release agent diluent resin；
10min is stirred with the linear velocity of 22m/s with high speed dispersor, obtains glue.By glue by internal layer, the demand of middle layer and outer layer
It measures and is divided into 3 parts, respectively internal layer glue, middle layer glue and outer layer glue, according to glue and age resister in outer layers glue
Mass ratio be 100:3 be uniformly mixed it is spare, wherein it is 2 that age resister, which is phthalic acid with benzotriazole according to weight ratio,:1
Composition.
(3) drying bed anti-corrosion internal layer is made by the way of injection, the thickness of internal layer is 0.5mm-2mm；Then will
Middle layer glue is put into dipping tank, after the solidification of internal layer glue, using winding unit, impregnates glue on one side with glass fabric
The mode of one side Stagger-wrap is fabricated to intermediate enhancing structure layer；Finally intermediate enhancing structure layer surface spray one layer of glue with
The mixture of age resister forms the anti-aging outer layer of appearance after cured.
In embodiment 1-2, the indices of obtained fiberglass drying bed are more different, and volumetric resistivity value is about 108
Ω cm meet anlistatig demand.Corrosion resistance test is carried out with the salt acid soak of 25% high concentration over 20 days, considerably beyond dry
Concentration of hydrochloric acid in dry material, test result, which is fiberglass, does not have significant change, it was demonstrated that it is with good acid-resistant corrosion.Separately
Its outer intensity and toughness all meet the needs of actual production.
Claims (10)
1. can carry out it is sour mutually suspend and the production of chlorinated polyethylene system of water phase suspension switching, including what is be sequentially connected be used for chlorine
Change the reaction kettle of reaction, the washing kettle for washing deacidification, the neutralization kettle for neutralizing deacidification, the dealkalize for washing dealkalize
Kettle, for the centrifuge of dehydration and for dry boiling-bed drying；It is characterized in that：The production system further includes at least one
A hydrochloric acid tank；The washing kettle includes washing kettle ontology and agitating device；It is equipped with and washing on the side wall of washing kettle ontology
The filter that kettle body interior communicates is equipped with washing kettle discharge port, the washing kettle discharge port connection in the bottom of washing kettle ontology
To kettle is neutralized, the filter is connected to sewage-treatment plant by blow-off pipe；The blow-off pipe is equipped with triple valve, triple valve
Bypass interface is connected to the hydrochloric acid tank by pipeline, and the outlet of the hydrochloric acid tank is connected to the reaction kettle.
2. according to claim 1 carry out the sour production of chlorinated polyethylene system mutually to suspend and water phase suspension switches,
It is characterized in that：It is additionally provided with filter between the dealkalize kettle and centrifuge.
3. according to claim 2 carry out the sour production of chlorinated polyethylene system mutually to suspend and water phase suspension switches,
It is characterized in that：The filter includes filter chamber, the first filter plate, the second filter plate intersected with the first filter plate, described
Filter chamber is separated into the adjacent feed space in left and right, discharge chamber by first filter plate；Second filter plate is in feed space
It is obliquely installed, and feed space is separated into neighbouring upper chamber and lower chambers；The upper chamber is equipped with and is in communication with the outside
Feed inlet, flush port and coarse fodder outlet, the discharge chamber are equipped with the discharge port being in communication with the outside；Coarse fodder outlet is next to the
The low side of one filter plate.
4. according to claim 3 carry out the sour production of chlorinated polyethylene system mutually to suspend and water phase suspension switches,
It is characterized in that：The boiling-bed drying includes drying bed ontology, into hot air apparatus, cyclone separator and air exhausting device；It is described
Include air blower, storage heater into hot air apparatus, the storage heater passes through intake stack and the drying bed ontology
Bottom is connected to；The air exhausting device includes air-introduced machine, wind pipe and air inducing pipeline, and the top of the drying bed ontology passes through institute
It states wind pipe to be connected to cyclone separator, the air-introduced machine is connected to by the air inducing pipeline with cyclone separator；It is described dry
Inlet port and outlet port are offered on the side wall of dry bed ontology, are equipped with sieve plate in drying bed ontology, the drying bed further includes stirring
Dispersing device is mixed, the stirring dispersing device includes the stirring power device being arranged below drying bed ontology, is arranged in drying
The stirring blade of bed body interior and the shaft for connecting stirring power device and stirring blade；The stirring blade is located at sieve plate
Top, be 0.5-50mm with the vertical range of sieve plate.
5. according to claim 4 carry out the sour production of chlorinated polyethylene system mutually to suspend and water phase suspension switches,
It is characterized in that：The surface of the stirring blade is equipped with hairbrush or several equally distributed protrusions.
6. according to claim 5 carry out the sour production of chlorinated polyethylene system mutually to suspend and water phase suspension switches,
It is characterized in that：Through-hole is offered on first filter plate, the second filter plate, the through-hole is that the length of side is 0.6-1.5cm's
Diamond shape through-hole, the elliptical hole that long axis 1.0-1.5cm, short axle are 0.6-1.2cm, aperture are the circular through hole of 0.6-1.5cm,
The length of side is one or more combinations in 0.6-1.5cm rectangular through-holes.
7. according to claim 6 carry out the sour production of chlorinated polyethylene system mutually to suspend and water phase suspension switches,
It is characterized in that：The bottom of the cyclone separator is equipped with Blowing stopper, and Blowing stopper is exported with feed back；The drying bed ontology
Feed back entrance is additionally provided on side wall, the spatial position of the feed back outlet in the vertical direction is higher than feed back entrance, the feed back
Outlet is connected to between feed back entrance by the return pipeline being obliquely installed；The feed back outlet also passes through Venturi tube and feed back
Wind turbine connects, and the Venturi tube and return pipeline are on the same line.
8. according to claim 7 carry out the sour production of chlorinated polyethylene system mutually to suspend and water phase suspension switches,
It is characterized in that：The Venturi tube is inlet end close to one end of feed back wind turbine, and the other end is outlet side；The air blower with
It is connected to by blowing line between storage heater, blast connection is additionally provided on the blowing line, blast connection is connected to institute
State the outlet side of Venturi tube.
9. according to claim 8 carry out the sour production of chlorinated polyethylene system mutually to suspend and water phase suspension switches,
It is characterized in that：Tail gas absorber is additionally provided on the air inducing pipeline, entrance and the cyclone separator of tail gas absorber pass through pipe
Road is connected to, and the outlet of the tail gas absorber is connected to by pipeline with air-introduced machine.
10. carrying out the sour chlorinated polyethylene mutually to suspend and water phase suspension switches according to any one of claim 1-9
Alkene production system, it is characterised in that：The drying bed ontology includes that anti-corrosion internal layer, intermediate enhancing structure layer and appearance are anti-aging outer
Layer；The anti-corrosion internal layer by gelatin jet on mold after be formed by curing；The intermediate enhancing structure layer is by glue and glass
Fiber cloth alternately covers bonding and is combined；The anti-aging outer layer of appearance is to be according to mass ratio with age resister by glue
100:It is formed by curing after being injected in intermediate enhancing structure layer surface after 2-3 mixing；
The wherein described glue includes the raw material of following parts by weight：60-80 parts of vinylite, 15-20 parts of furfuryl alcohol resin, poly- isobutyl
6-10 parts of alkene, 30-45 parts of sepiolite fibre, 2-3 parts of polyethylene glycol methacrylate-styrene polymer copolymer, diaminodiphenylmethane 3-5
Part, 15-25 parts of 1,4- butanediol diglycidyl ethers, 6-8 parts of boron modified phenolic resin adhesive, 0.5-0.8 parts of graphite powder；Institute
The boron modified phenolic resin adhesive stated is made by the raw material of following parts by weight：90-110 parts of phenol, formaldehyde 20-
30 parts, 5-8 parts of zinc borate, 3-5 parts of barium hydroxide, 2-3 parts of aniline, 2-3 parts of A151 silane coupling agents, 4-6 parts of tackifying resin.
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| CN201610371175.2A CN105837711B (en) | 2016-05-30 | 2016-05-30 | It can carry out the sour production of chlorinated polyethylene system mutually to suspend and water phase suspension switches |
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| CN201610371175.2A CN105837711B (en) | 2016-05-30 | 2016-05-30 | It can carry out the sour production of chlorinated polyethylene system mutually to suspend and water phase suspension switches |
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| CN105837711B true CN105837711B (en) | 2018-08-03 |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102863568A (en) * | 2011-07-07 | 2013-01-09 | 广西田东锦华化学有限公司 | Method for preparing chlorinated polyethylene through aqueous phase suspension method |
| CN103755845A (en) * | 2014-01-11 | 2014-04-30 | 潍坊亚星集团有限公司 | Clean production method of chlorinated polyethylene |
| CN205821221U (en) * | 2016-05-30 | 2016-12-21 | 广西锦华新材料科技有限公司 | Acid can be carried out suspend mutually and the production of chlorinated polyethylene system of water phase suspension switching |
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2016
- 2016-05-30 CN CN201610371175.2A patent/CN105837711B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102863568A (en) * | 2011-07-07 | 2013-01-09 | 广西田东锦华化学有限公司 | Method for preparing chlorinated polyethylene through aqueous phase suspension method |
| CN103755845A (en) * | 2014-01-11 | 2014-04-30 | 潍坊亚星集团有限公司 | Clean production method of chlorinated polyethylene |
| CN205821221U (en) * | 2016-05-30 | 2016-12-21 | 广西锦华新材料科技有限公司 | Acid can be carried out suspend mutually and the production of chlorinated polyethylene system of water phase suspension switching |
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