CN205874279U - Chlorinated polyethylene production system - Google Patents

Abstract

The utility model provides a chlorinated polyethylene production system belongs to chemical industry equipment technical field. Including consecutive chlorination's reation kettle, the water washing kettle who is used for washing the deacidify, centrifuge, the homogenization jar that is used for soaking the deacidify, secondary centrifuge and boiling drying bed of being used for, reation kettle, water washing kettle, homogenization jar, the equal inside lining of boiling drying bed have the inner liner of acid resisting property, one time centrifuge, secondary centrifuge's inside and the part of material contact all adopt resistant acid material to make. The utility model discloses still improve through setting up hydrochloric acid storage tank and circuit, realize the sour looks method of this system and aqueous phase method's switching. The utility model discloses a this production system can reduce total water consumption, shortens production cycle to reduction in production cost can also flexible processing byproduct hydrochloric acid.

Description

Production of chlorinated polyethylene system

[technical field]

This utility model relates to technical field of chemical, is specifically related to a kind of production of chlorinated polyethylene system.

[background technology]

Chlorinated polyethylene, chemical name CPE, for saturated macromolecular material, have excellent stability, weather resisteant, resistance to ozone, Chemical-resistant resistance and ageing-resistant performance, be widely used in the fields such as plastics, rubber, building materials, electromechanics, automobile, military project.At present, chlorination Polyethylene (CPE) production technology has water phase suspension, acid phase suspension method, solid phase method and solwution method.Below by commonly used acid Phase suspension method and water phase suspension are described below:

Acid phase suspension method is by outstanding for high density polyethylene (HDPE) (High Density Polyethylene, referred to as " HDPE ") Float on and the hydrochloric acid solution that concentration is 10-20% carry out chlorination, then with the continuous deacidification of plane rotary disc vacuum filter, wash, go out Material, finally passes in and out the wet feed after deacidification centrifugal, dry and grinds to obtain CPE finished product.The method is mainly characterized by three waste discharge Little, technique is simple, and constant product quality, produced concentration of hydrochloric acid, more than 28%, can recycle；But rotating disk vacuum mistake Material after filter and centrifugal drying equipment investment cost are the highest, and drying steps terminates is also relatively thicker, needs to enter it Row grinds, and process of lapping is a process of very power consumption, and general one ton of material needs, about 1000 degree of electricity, therefore, to produce into This is the highest.

Equipment investment expense just because of acid phase suspension method is the highest, and more producer is more willing to use water phase suspension. Domestic commonly used water phase suspension mainly includes chlorination, deacidification, neutralization, dealkalize, centrifugation, is dried, pulverizes and mixes Pack this several steps.

1, chlorination: according to the size of " chlorination tank ", adds appropriate water purification in " chlorination tank ", is subsequently adding auxiliary agent and height Density polyethylene (High Density Polyethylene, referred to as " HDPE ") PP Pipe Compound, is passed through after being warming up to uniform temperature Chlorine carries out reacting (generally using syllogic to lead to chlorine), is insulation and the process of cooling after having reacted.

2, deacidification: being the material of chlorination to be transferred to deacidification still carry out deacidification, the process of deacidification generally comprises two kinds: (1) Many times add washing, be i.e. the CPE material that reactor transfer is moved past, by filter, sour water released, certain when being put into Water level disposed slurry is own through the thickest, is then shut off filter valve, water is added to previous water level, repeated multiple times washing；(2) while adding Water, discharges water.", the process of deacidification is actually the process of a kind of dilution, and water consumption is huge, and produces a large amount of low concentration of salt Acid waste water.

3, neutralize: add alkali by intensification and neutralize the hydrochloric acid within CPE material by inside alkali entrance CPE, until reagent paper is surveyed Examination material containing acid few time, this process just completes, and this process is it is generally required to more than 4 hours, it is sometimes desirable to individual hour of 7-8, very To longer.After neutralization completes, then material is transferred in dealkalize still.

4, dealkalize: with deacidification is similar, alkali liquor is bled off by filter screen, adds clean water and completes several times, retransfer To centrifuge.This process is typically short a lot, probably at about 1 hour than the time used during deacidification.

5, centrifugal: rotary process is that material and moisture content are separated, remaining CPE part, transfer in boiling-bed drying. Centrifuge employed in this step is generally stainless steel, and its acid resistance is poor.

6, it is dried: with boiling-bed drying, material CPE is dried.Drying bed employed in this step is the most stainless Steel matter, its acid resistance is poor.

7, hybrid packed: dried CPE semi-finished product to be added a certain proportion of interleaving agent (calcium carbonate), in batch mixer Mix homogeneously, can be packaged into CPE finished product.

The major advantage of water phase suspension is that constant product quality, consumption of raw materials are low, and equipment investment is relatively small；But, The a large amount of low-concentration hcl processing load weights produced in chlorination reaction process, need deacidification, neutralization, three steps of dealkalize to complete Deacidification purpose, typically completing this three step needs about 9 hours, water consumption at least 30 tons.Therefore, existing water phase suspension produces There is production cycle length in CPE, water resources consumption amount is big, concentration of hydrochloric acid is dilute, it is impossible to the problem of recycling.

The Chinese patent of Publication No. CN102863568B that the applicant has, it is provided that a kind of aqueous-phase suspending prepares chlorine The method changing polyethylene, but the hydrochloric acid that the most divisible material of the method is carried, product property is also not sufficiently stable, even during production You also there will be the phenomenon of material jaundice.

It addition, the manufacturer of the most domestic chlorinated polyethylene is all solely to use a set of equipment to carry out acid to suspend mutually Method and the production of water phase suspension, hydrochloric acid can be recycled by acid phase suspension method, and water phase suspension is due to concentration of hydrochloric acid Relatively low, dispose only as waste water, and the price of hydrochloric acid can be along with the business fluctuations in market, when market quotation depression, acid Phase suspension method also can not produce enough economic worths to the recycling of hydrochloric acid；When hydrochloric acid price is higher, water phase suspension Directly diluted acid is processed as waste water, be also the waste of a kind of resource.

[utility model content]

One of goal of the invention of the present utility model is: for current production of chlorinated polyethylene cost height, production cycle length, water The big problem of consumed resource, it is provided that a kind of production of chlorinated polyethylene system, final product contains to use this production system can guarantee that Acid amount is the lowest not even containing acid, and can reduce total water consumption, shortens the production cycle, thus reduces production cost.

Another purpose of the present utility model is: the manufacturer for current chlorinated polyethylene can only use single side Method carries out production, it is impossible to the problem of sweetly disposition by-product hydrochloric acid, it is provided that a kind of can be flexibly according to the market situation of hydrochloric acid, spirit Live and carry out acid phase process and the production of chlorinated polyethylene system of Aqueous phase switching.

To achieve these goals, the technical solution adopted in the utility model is as follows:

Production of chlorinated polyethylene system, including the reactor for chlorination reaction being sequentially connected, for washing deacidification Washing kettle, centrifuge, for soaking the homogenizing tank of deacidification, secondary centrifuging machine and boiling-bed drying；Wherein said reactor, Washing kettle, homogenizing tank, boiling-bed drying are all lined with acid proof inner lining body；A described centrifuge, secondary centrifuging machine interior The part that portion contacts with material all uses acid resistant material to make.

Using above-mentioned process units to produce chlorinated polyethylene, its technological process is: the chlorination reaction that carries out successively, washing The step filtering, being once centrifuged, leach, be centrifuged, be dried；First in reactor, add water, high density polyethylene (HDPE), divide Powder, emulsifying agent, initiator；Start to be passed through chlorine after being warming up to 70 DEG C and carry out chlorination reaction, reaction temperature 90-135 DEG C, reaction 3-4 hour time；Then it is transferred to washing kettle after the material after chlorination reaction being cooled to 80-90 DEG C, after washing 1-2 time with water Filtrate gets washing material；A centrifuge is used to slough the moisture in washing material again；Then by described once centrifugal after Material be soaked in water in homogenizing tank, soak more than 3 hours；Then after using acid proof centrifugal separator to slough immersion Moisture in material；Finally use boiling-bed drying that material is dried.

This utility model, by improving equipment, when producing, makes the technique of deacidification be improved, during production first Use washing filtering to remove the floating acid of product surface and other impurity, the step for be not required to as tradition washing needs to wash 4- More than 5 times, substantial amounts of water can be saved.Material institute band moisture content can be removed through once centrifugal and remove floating acid further after washing.So Afterwards by the way of being soaked in water, making the slow acid of chlorinated polyethylene inside particles discharge, traditional method is to come with alkali Neutralizing the acid of chlorinated polyethylene inside particles, and need heating, the time used is more than 4 hours, it is sometimes desirable to 7-8 hour； And this utility model uses the mode soaked, change into making it discharge by osmosis by the method to inside fire attack dechlorinationization hydrogen Come.Soaking after more than 3 hours, will soak water releasing, then by clean water one time, the content of hydrochloric acid can be down to 0.5% Below；Finally being dried through boiling-bed drying, remaining hydrochloric acid gives off with hydrogen chloride form again, and will not cause owing to concentration is low Chlorinated polyethylene turns to be yellow, final products excellent performance, and quality is higher than national standard.

Using above-mentioned production system to produce, water consumption is less, produces a still (by 12 tons of calculation of capacity) chlorination and gathers Ethylene ratio traditional handicraft can be with using water wisely more than 15 tons.

Further, due to chlorinated polyethylene intermediate material, the phenomenon of caking easily occurs in each process procedure.Thing Material creates caking and product can be caused to lose, and reduces yield, increases production cost, and more seriously it is next process Normal production brings the most serious impact, causes the blockings such as pipe-line equipment, makes follow-up production be difficult to, therefore, and this reality Also between described washing kettle and a centrifuge, it is being additionally provided with filter with novel.Described filter include filter chamber, The second screen plate that one screen plate and the first screen plate intersect, described filter chamber is separated into left and right phase by described first screen plate The feed space of neighbour, discharge chamber；Described second screen plate is in the tilted setting of feed space, and is separated into by feed space neighbouring Upper chamber and lower chambers；Described upper chamber is provided with charging aperture, flush port and the coarse fodder outlet being in communication with the outside, and described discharge chamber sets There is the discharging opening being in communication with the outside；The outlet of described coarse fodder is close to the low side of the first screen plate.Due to chlorinated polyethylene solution block Having the feature of himself, according to the feature of its size and shape, on screen plate, the size of through hole also has certain requirement, through hole Can be the length of side be the rhombus through hole of 0.6-1.5cm, major axis is 1.0-1.5cm, short axle is the elliptical hole of 0.6-1.2cm, hole Footpath is the manhole of 0.6-1.5cm, and the length of side is the combination of one or more in 0.6-1.5cm rectangular through-hole.Use this mistake Filter can remove the coarse fodder produced in production process, it is to avoid the blocking of pipeline, and the releasing of caking coarse fodder the most fast saves Power.

Further, described washing kettle includes washing kettle body and agitating device；The sidewall of washing kettle body is provided with The filter communicated with washing kettle body interior；It is provided with washing kettle discharging opening in the bottom of washing kettle body；Described washing kettle discharging Mouth is connected to filter, and filter is connected to a centrifuge；Described filter connects after connecting blowdown main by blow down branch To sewage-treatment plant.

It addition, switch to realize the production of acid phase process and Aqueous phase, this utility model is also to production of chlorinated polyethylene system Uniting into improvement, specially increase arranges at least one hydrochloric acid tank；And three-way valve is set on described blowdown main, three-way valve Bypass interface is connected to described hydrochloric acid tank by pipeline, and the outlet of described hydrochloric acid tank is connected to described reactor.

When hydrochloric acid market are preferable, after using Aqueous phase to produce hydrochloric acid, open the bypass of the three-way valve that washing kettle is connected Reaction is obtained hydrochloric acid waste water (concentration of hydrochloric acid is 8-10%) and delivers to hydrochloric acid tank and store by valve, the aqueous-phase suspending production schedule After completing, the hydrochloric acid waste water in hydrochloric acid tank is sent by pumping in reactor, carries out acid phase suspension method reaction, reaction is obtained Hydrochloric acid waste water (concentration of hydrochloric acid 25-28%) sold by market price.In this production system, be can be acid proof for each equipment material, Therefore the production requirement of acid phase suspension method can be met.In actual production, when carrying out the change of acid phase and aqueous phase, only need to change and help Agent system.

Further, the acid proof inner lining body of described homogenizing tank liner is fiberglass, and described homogenizing tank includes homogenizing tank Body and agitating device, be provided with the filter communicated with homogenizing tank body interior on the sidewall of homogenizing tank body；At homogenizing tank originally The bottom of body is provided with homogenizing tank discharging opening；Homogenizing tank discharging opening is connected to secondary centrifuging machine.

Further, the volume of described homogenizing tank is more than the twice of described washing kettle volume.

Further, described boiling-bed drying includes drying bed body, enters hot air apparatus, cyclone separator and air draft dress Put；Described enter hot air apparatus include aerator, storage heater, described storage heater is by intake stack and described drying bed Bottom connection；Described air exhausting device includes that air-introduced machine, wind pipe and air inducing pipeline, the top of described drying bed body pass through Described wind pipe connects with cyclone separator, and described air-introduced machine is connected with cyclone separator by described air inducing pipeline；Described Offering charging aperture and discharging opening on the sidewall of drying bed body, this internal sieve plate that is provided with of drying bed, described drying bed also includes Stirring dispersing device, described stirring dispersing device include being arranged on the stirring power set below drying bed body, be arranged on dry Power set and the rotating shaft of stirring vane are stirred in stirring vane and the connection of dry bed body interior；Described stirring vane is positioned at sieve The top of plate, is 0.5-50mm with the vertical dimension of sieve plate.

Further, the surface of described stirring vane is provided with hairbrush or several equally distributed protrusions.

In sum, owing to have employed technique scheme, the beneficial effects of the utility model are:

1, this utility model is by changing the production system of chlorinated polyethylene, traditional neutralization still, dealkalize still is cancelled, adopts Realize the leaching of hydrochloric acid with homogenizing tank, can guarantee that final product acid content is the lowest not even containing acid, and water can be reduced Wash, the water consumption of dealkalize, producing a still (by 12 tons of calculation of capacity) chlorinated polyethylene can be with using water wisely 15 tons than traditional handicraft Above, and the production time can be shortened.

2, this utility model is by arranging homogenizing tank, and the volume of homogenizing tank is more than more than the twice of reactor, the most instead Answer still 8-10 times, during concrete production-line arrangement, can arrange that (often set consersion unit includes reactor, washing to 4 set consersion units Still, filter and a centrifuge) a corresponding homogenizing tank, by the 4 corresponding homogenizing tanks of set consersion unit, moreover it is possible to play homogenizing The effect of each batch products performance, improves the homogeneity of product, is more welcomed by customers.

3, this utility model improvement by production system, it is possible to achieve the production switching of acid phase process and Aqueous phase, permissible Hydrochloric acid waste water is reclaimed or directly discharges by the market according to hydrochloric acid, thus realizes more preferable economic benefit.

4, the design science of filter used in this utility model is reasonable, it is possible to produce in removal production process is thick Material, it is to avoid the blocking of pipeline, and the releasing the most very convenient power-saving of caking coarse fodder.

5, this utility model arranges agitating device in boiling-bed drying, by the effect of breaing up of stirring vane, stops thing Material condenses on sieve plate thus blocks the through hole on sieve plate or be bonded on sieve plate, thus reduces the number of times of cleaning sieve plate, improves Production efficiency.Owing to boiling-bed drying is the highest, and sieve plate is positioned at drying bed bottom, so being filled by the power of agitator Put the lower section being arranged on boiling-bed drying, so that stirring shaft will not be long, a part of power can be saved.

[accompanying drawing explanation]

Fig. 1 is the annexation schematic diagram of production of chlorinated polyethylene system of the present utility model；

Fig. 2 is the structural representation of boiling-bed drying in this utility model；

Fig. 3 is the external structure schematic diagram of filter in this utility model；

Fig. 4 is the internal structure schematic diagram of filter in this utility model.

Wherein, 1-reactor, 2-washing kettle, 21-filter, 3-filter, 31-discharge chamber, 32-charging aperture, 33-washes by water Mouthful, 34-feed space, 35-upper chamber, 36-lower chambers, 37-coarse fodder exports, 38-the first screen plate, 39-the second screen plate；4-mono- Secondary centrifuge, 5-homogenizing tank, 6-secondary centrifuging machine, 7-boiling-bed drying, 71-drying bed body, 72-aerator, 73-stirring is dynamic Power apparatus, 74-stirring vane, 75-sieve plate, 76-rotating shaft, 77-cyclone separator, 78-air-introduced machine, 79-storage heater, 8-salt Acid storage tank, 9-sewage-treatment plant, 10-three-way valve.

[detailed description of the invention]

Below by way of detailed description of the invention and combine accompanying drawing the utility model is described in further detail.

As it is shown in figure 1, be the schematic diagram of production of chlorinated polyethylene system of the present utility model, production of chlorinated polyethylene in figure System, including the reactor 1 for chlorination reaction being sequentially connected, for wash the washing kettle 2 of deacidification, filter 3, once from Scheming 4, for soaking the homogenizing tank 5 of deacidification, secondary centrifuging machine 6 and boiling-bed drying 7；Wherein said reactor 1, washing kettle 2, Homogenizing tank 5, boiling-bed drying 7 are all lined with acid proof inner lining body；A described centrifuge 4, secondary centrifuging machine 6 inside with The part of material contact all uses acid resistant material to make.

As it is shown in figure 1, described washing kettle 2 includes washing kettle body and agitating device；The sidewall of washing kettle body sets There is the filter 21 communicated with washing kettle body interior；It is provided with washing kettle discharging opening in the bottom of washing kettle body；Described washing kettle Discharging opening is connected to filter 3, and filter 3 is connected to a centrifuge 4；It is total that described filter 21 connects blowdown by blow down branch Sewage-treatment plant 9 it is connected to after pipe.

As it is shown in figure 1, the acid proof inner lining body of described homogenizing tank 5 liner is fiberglass, described homogenizing tank 5 includes homogenizing Tank body and agitating device, be provided with the filter communicated with homogenizing tank body interior on the sidewall of homogenizing tank body；At homogenizing tank The bottom of body is provided with homogenizing tank discharging opening；Homogenizing tank discharging opening is connected to secondary centrifuging machine 6.The volume of homogenizing tank 5 is described More than the twice of reactor 1 volume, even 8-10 times of reactor 1, during concrete production-line arrangement, 4 set reactions can be arranged Equipment (often set consersion unit includes reactor 1, washing kettle 2, a filter 3 and a centrifuge 4) corresponding homogenizing tank 5, by 4 The corresponding homogenizing tank 5 of set consersion unit, moreover it is possible to play the effect of homogenizing each batch products performance.

As depicted in figs. 1 and 2, described boiling-bed drying includes drying bed body 71, enters hot air apparatus, cyclone separator 77 And air exhausting device；Described enter hot air apparatus include that aerator 72, storage heater 79, described storage heater 79 pass through blast pipe Road connects with the bottom of described drying bed body 71；Described air exhausting device includes air-introduced machine 78, wind pipe and air inducing pipeline, institute State the top of drying bed body 71 to be connected with cyclone separator 77 by described wind pipe, described air-introduced machine 78 pass through described in draw Wind pipeline connects with cyclone separator 77；Offering charging aperture and discharging opening on the sidewall of described drying bed body 1, drying bed is originally The internal sieve plate 75 that is provided with, described drying bed also includes stirring dispersing device, and described stirring dispersing device includes being arranged on drying bed Stirring power set 73 below body, the stirring vane 74 being arranged on drying bed body interior and connection stirring power set Rotating shaft 76 with stirring vane 74；Described stirring vane 74 is positioned at the top of sieve plate 75, is 0.5-with the vertical dimension of sieve plate 75 50mm.It is highly preferred that hairbrush or several equally distributed protrusions can be provided with on the surface of described stirring vane 74, thus The effect that stirring is broken up is more preferable.It is highly preferred that be additionally provided with acid gas processing device between described cyclone separator and air-introduced machine.

As shown in Figure 3 and Figure 4, for external structure schematic diagram and the internal structure schematic diagram of filter 3.Described filter 3 The second screen plate 39 intersected with the first screen plate 38 including filter chamber, the first screen plate 38, described filter chamber is by described first Screen plate 38 is separated into the adjacent feed space in left and right 34, discharge chamber 31；Described second screen plate 39 in the tilted setting of feed space, And feed space 34 is separated into neighbouring upper chamber 35 and lower chambers 36；Described upper chamber 35 is provided with entering of being in communication with the outside Material mouth 32, flush port 33 and coarse fodder outlet 37, described discharge chamber 31 is provided with the discharging opening (not shown) being in communication with the outside；Institute State coarse fodder outlet 37 and be close to the low side of the first screen plate 38.Owing to chlorinated polyethylene solution block has himself, root According to the feature of its size and shape, on screen plate, the size of through hole also has certain requirement, through hole can be the length of side be 0.6- The rhombus through hole of 1.5cm, major axis is 1.0-1.5cm, short axle is the elliptical hole of 0.6-1.2cm, and aperture is the circle of 0.6-1.5cm Shape through hole, the length of side is the combination of one or more in 0.6-1.5cm rectangular through-hole.Use this filter 3 can remove production During produce coarse fodder, it is to avoid the blocking of pipeline, and caking coarse fodder releasing the most very convenient power-saving.

Using above-mentioned production system to produce chlorinated polyethylene, its technological process is: carry out chlorination reaction, water washed successively The step filtered, be once centrifuged, leach, be centrifuged, be dried；First in reactor 1, add water, high density polyethylene (HDPE), divide Powder, emulsifying agent, initiator；Start to be passed through chlorine after being warming up to 70 DEG C and carry out chlorination reaction, reaction temperature 90-135 DEG C, reaction 3-4 hour time；Then it is transferred to washing kettle 2 after the material after chlorination reaction being cooled to 80-90 DEG C, washes with water 1-2 time Rear filtrate gets washing material；After filter 3 removes coarse fodder, then a centrifuge 4 is used to slough the water in washing material Point；Then by described once centrifugal after material be soaked in water in homogenizing tank 5, soak more than 3 hours；Then acid resistance is used Secondary centrifuging machine 6 slough the moisture in the material after immersion；Finally use boiling-bed drying 7 that material is dried i.e. to obtain into Product.

This utility model by equipment is improved so that deacidification technique improved, during production initially with Washing filtering removes the floating acid of product surface and other impurity, the step for be not required to as tradition washing needs washing 4-5 time Above, substantial amounts of water can be saved.Material institute band moisture content can be removed through once centrifugal and remove floating acid further after washing.Then lead to Crossing the mode being soaked in water, make the slow acid of chlorinated polyethylene inside particles discharge, traditional method is to neutralize with alkali The acid of chlorinated polyethylene inside particles, and need heating, the time used is more than 4 hours, it is sometimes desirable to 7-8 hour；And this Utility model uses the mode soaked, and changes into making it discharge by osmosis by the method to inside fire attack dechlorinationization hydrogen.? After soaking more than 3 hours, water will be soaked and release, then by clean water one time, the content of hydrochloric acid can be down to less than 0.5%； Finally being dried through boiling-bed drying, remaining hydrochloric acid gives off with hydrogen chloride form again, and will not cause chlorination owing to concentration is low Polyethylene turns to be yellow, final products excellent performance, and quality is higher than national standard.

Using above-mentioned production system to produce, water consumption is less, produces a still (by 12 tons of calculation of capacity) chlorination and gathers Ethylene ratio traditional handicraft can be with using water wisely more than 15 tons.

Switching to realize the production of acid phase process and Aqueous phase, production of chlorinated polyethylene system is also carried out by this utility model Further improvement, is specifically shown in Fig. 1, increases and arrange at least one hydrochloric acid tank 8 in production system；And it is total in described blowdown Arranging three-way valve 10 on pipe, the bypass interface of three-way valve 10 is connected to described hydrochloric acid tank 8, described hydrochloric acid tank 8 by pipeline Outlet be connected to described reactor 1.

When hydrochloric acid market are preferable, after using Aqueous phase to produce hydrochloric acid, open the side of the three-way valve 10 that washing kettle is connected Reaction is obtained hydrochloric acid waste water (concentration of hydrochloric acid is 8-10%) and delivers to hydrochloric acid tank 8 and store by road valve, and aqueous-phase suspending produces After having planned, the hydrochloric acid waste water in hydrochloric acid tank 8 is sent by pumping in reactor 1, carries out acid phase suspension method reaction, not only Make use of the spent acid of water phase suspension, moreover it is possible to led to by the hydrochloric acid waste water (concentration of hydrochloric acid 25-28%) that acid phase suspension method reaction obtains Cross market price to sell, it is thus achieved that economic worth.In this production system, be can be acid proof for each equipment material, therefore can meet acid and suspend mutually The production requirement of method.

Although this utility model improvement part is the most uncomplicated, but to those skilled in the art, this improvement overcomes Traditional concept, has broken factory and can only carry out single water phase suspension and the general layout of acid suspension method, and at joint Electricity, economize on water, recycle resource, the aspect that saves time is better than existing equipment and method, is the innovation and creation with novelty.

Described above is the detailed description for the preferable possible embodiments of this utility model, but embodiment is not limited to Patent claim of the present utility model, the equal change completed under the technical spirit suggested by all this utility model or modification Change, all should belong to the contained the scope of the claims of this utility model.

Claims (10)

1. production of chlorinated polyethylene system, it is characterised in that: include the reactor for chlorination reaction being sequentially connected, for water The washing kettle of eccysis acid, centrifuge, for soaking the homogenizing tank of deacidification, secondary centrifuging machine and boiling-bed drying；Described instead Still, washing kettle, homogenizing tank, boiling-bed drying is answered all to be lined with acid proof inner lining body；A described centrifuge, secondary centrifuging machine The part that contacts with material of inside all use acid resistant material to make.

Production of chlorinated polyethylene system the most according to claim 1, it is characterised in that: at described washing kettle and once it is centrifuged Filter it is additionally provided with between machine.

Production of chlorinated polyethylene system the most according to claim 2, it is characterised in that: described washing kettle includes that washing kettle is originally Body and agitating device；The sidewall of washing kettle body is provided with the filter communicated with washing kettle body interior；At washing kettle body Bottom be provided with washing kettle discharging opening；Described washing kettle discharging opening is connected to filter, and filter is connected to a centrifuge；Institute State after filter connects blowdown main by blow down branch and be connected to sewage-treatment plant.

Production of chlorinated polyethylene system the most according to claim 3, it is characterised in that: described production system also includes at least One hydrochloric acid tank；Described blowdown main is provided with three-way valve, and the bypass interface of three-way valve is connected to described hydrochloric acid by pipeline Storage tank, the outlet of hydrochloric acid tank is connected to described reactor.

Production of chlorinated polyethylene system the most according to claim 4, it is characterised in that: the acid resistance of described homogenizing tank liner Inner lining body be fiberglass, described homogenizing tank includes homogenizing tank body and agitating device, is provided with on the sidewall of homogenizing tank body The filter communicated with homogenizing tank body interior；It is provided with homogenizing tank discharging opening in the bottom of homogenizing tank body；Homogenizing tank discharging opening is even It is connected to secondary centrifuging machine.

6. according to the production of chlorinated polyethylene system described in claim 4 or 5, it is characterised in that: the volume of described homogenizing tank is More than the twice of described washing kettle volume.

Production of chlorinated polyethylene system the most according to claim 2, it is characterised in that: described filter include filter chamber, The second screen plate that first screen plate and the first screen plate intersect, described filter chamber is separated into left and right by described first screen plate Adjacent feed space, discharge chamber；Described second screen plate is in the tilted setting of feed space, and is separated into by feed space neighbouring Upper chamber and lower chambers；Described upper chamber is provided with charging aperture, flush port and coarse fodder outlet, the described discharge chamber being in communication with the outside It is provided with the discharging opening being in communication with the outside；The outlet of described coarse fodder is close to the low side of the first screen plate.

Production of chlorinated polyethylene system the most according to claim 1, it is characterised in that: described boiling-bed drying includes being dried Bed body, enter hot air apparatus, cyclone separator and air exhausting device；Described enter hot air apparatus include aerator, storage heater, institute State storage heater to be connected with the bottom of described drying bed body by intake stack；Described air exhausting device includes air-introduced machine, goes out Wind pipeline and air inducing pipeline, the top of described drying bed body is connected with cyclone separator by described wind pipe, described in draw Blower fan is connected with cyclone separator by described air inducing pipeline；Offer charging aperture on the sidewall of described drying bed body and go out Material mouth, this internal sieve plate that is provided with of drying bed, described drying bed also includes stirring dispersing device, and described stirring dispersing device includes setting Put the stirring power set below drying bed body, the stirring vane being arranged on drying bed body interior and connection stirring dynamic Power apparatus and the rotating shaft of stirring vane；Described stirring vane is positioned at the top of sieve plate, is 0.5-50mm with the vertical dimension of sieve plate.

Production of chlorinated polyethylene system the most according to claim 8, it is characterised in that: the surface of described stirring vane is provided with Hairbrush or several equally distributed protrusions.

Production of chlorinated polyethylene system the most according to claim 7, it is characterised in that: described first screen plate, the second mistake Offer through hole on filter plate, described through hole be the length of side be the rhombus through hole of 0.6-1.5cm, major axis is 1.0-1.5cm, short axle is The elliptical hole of 0.6-1.2cm, aperture is the manhole of 0.6-1.5cm, and the length of side is the one in 0.6-1.5cm rectangular through-hole Or multiple combination.