CN205874278U - A production line for producing chlorinated polyethylene - Google Patents

Abstract

The utility model provides a production line for producing chlorinated polyethylene belongs to chemical industry equipment technical field. Including consecutive chlorination's reation kettle, the belt vacuum filter who is used for filtering and washing, centrifuge, the homogenization jar that is used for soaking the deacidify, secondary centrifuge and boiling drying bed of being used for, reation kettle, homogenization jar, the equal inside lining of boiling drying bed have the inner liner of acid resisting property, belt vacuum filter, 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 guarantee that ultimate product contains the acid volume and hangs down very much or even do not contain acid, and can reduce total water consumption, shortens production cycle to reduction in production cost can also flexible processing byproduct hydrochloric acid.

Description

A kind of production line for producing chlorinated polyethylene

[technical field]

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

[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 line for producing chlorinated polyethylene, uses this production system to can guarantee that finally Product acid content the lowest and total water consumption can be reduced even containing acid, shorten the production cycle, thus reduce and produce into This.

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 line for producing chlorinated polyethylene of Aqueous phase switching.

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

A kind of production line for producing chlorinated polyethylene, including the reactor for chlorination reaction being sequentially connected, use In filtering the belt vacuum filter of washing, centrifuge, dry for soaking the homogenizing tank of deacidification, secondary centrifuging machine and boiling Dry bed；Described reactor, homogenizing tank, boiling-bed drying are all lined with acid proof inner lining body；Described belt vacuum filter, one The part that secondary centrifuge, the inside of secondary centrifuging machine contact 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, filtration The step washed, be 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 belt vacuum filter after the material after chlorination reaction being cooled to 80-90 DEG C and carries out solid-liquid Separate and washing；Use the moisture that centrifuge is sloughed after belt vacuum filter processes in material again；Then by described one Secondary centrifugal after material be soaked in water in homogenizing tank, soak more than 3 hours；Then acid proof centrifugal separator is used to slough The moisture in material after immersion；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 belt vacuum filter to carry out solid-liquid separation and washing remove the floating acid of product surface and other impurity, the step for not Need, as tradition washing needs washing more than 4-5 time, substantial amounts of water to be saved.Material can be removed carried through once centrifugal after filtration The floating acid of moisture content and further removing.Then, by the way of being soaked in water, the slow acid of chlorinated polyethylene inside particles is made to discharge Out, traditional method is to neutralize the acid of chlorinated polyethylene inside particles with alkali, and needs heating, and the time used is 4 little More than time, it is sometimes desirable to 7-8 hour；And this utility model uses the mode soaked, will change into the method for inside fire attack dechlorinationization hydrogen It is made to discharge by osmosis.Soaking after more than 3 hours, will soak water releasing, then by clean water one time, The content of hydrochloric acid is down to less than 0.5%；Finally being dried through boiling-bed drying, remaining hydrochloric acid discharges with hydrogen chloride form again Going out, and chlorinated polyethylene will not be caused to turn to be yellow owing to concentration is low, final products excellent performance, quality is higher than national standard.Use Above-mentioned production system produces, and water consumption is less, produces a still (by 12 tons of calculation of capacity) chlorinated polyethylene than traditional work Skill can be with using water wisely more than 15 tons.

Further, it is connected with between described belt vacuum filter and a centrifuge and treats hopper, it is simple in production Transfer.

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 it is being also connected with being provided with filter between hopper and a centrifuge described treating with novel.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.Owing to chlorinated polyethylene deblocks Material has the feature of himself, and according to the feature of its size and shape, on screen plate, the size of through hole also has certain requirement, logical 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, Aperture 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.Using should 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 is the most quick Laborsaving.

It addition, switch to realize the production of acid phase process and Aqueous phase, one also is used for producing chlorination by this utility model The production line of polyethylene enters to improve, and specially increase arranges at least one hydrochloric acid tank；And belt vacuum filter includes solid-liquid Separating mechanism, strainer wiper mechanism, solid-liquid separation device has leakage fluid dram, and leakage fluid dram is connected to sewage disposal by discharging tube and fills Putting, discharging tube is additionally provided with three-way valve, the bypass interface of three-way valve is connected to described hydrochloric acid tank by pipeline, hydrochloric acid tank Outlet is connected to described reactor.

When hydrochloric acid market are preferable, after using Aqueous phase to produce hydrochloric acid, the bypass valve opening three-way valve on discharging tube will Reaction obtains hydrochloric acid waste water (concentration of hydrochloric acid is 8-10%) and delivers to hydrochloric acid tank and store, and the aqueous-phase suspending production schedule completes After, the hydrochloric acid waste water in hydrochloric acid tank is sent by pumping in reactor, carries out acid phase suspension method reaction, salt reaction obtained Acid waste water (concentration of hydrochloric acid 25-28%) is sold by market price.In this production system, be can be acid proof for each equipment material, therefore energy Meet the production requirement of acid phase suspension method.In actual production, when carrying out the change of acid phase and aqueous phase, only need to change auxiliary agent body It is.

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 general, chlorinated polyethylene chlorination reaction, washing, homogenizing can use the equipment of liner enamel, but liner The service life of equipment of enamel is short, and is easily damaged, uncomfortable as boiling-bed drying.Owing to producing, boiling-bed drying there is corrosion resistant Erosion property and the requirement of antistatic behaviour, the boiling-bed drying that this utility model is preferably used is made up of fiberglass.

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, belt to 4 set consersion units Vacuum filter, filter and a centrifuge) a corresponding homogenizing tank, by the 4 corresponding homogenizing tanks of set consersion unit, moreover it is possible to Play the effect of homogenizing each batch products performance, improve the homogeneity of product, be 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 the production line for producing chlorinated polyethylene 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-belt vacuum filter, 21-solid-liquid separation device, 22-strainer wiper mechanism, 2a-treats Hopper, 3-filter, 31-discharge chamber, 32-charging aperture, 33-flush port, 34-feed space, 35-upper chamber, 36-lower chambers, 37- Coarse fodder exports, 38-the first screen plate, 39-the second screen plate；Centrifuge of 4-, 5-homogenizing tank, 6-secondary centrifuging machine, 7-boils Rise drying bed, 71-drying bed body, 72-aerator, 73-stirs power set, 74-stirring vane, 75-sieve plate, 76-rotating shaft, 77-cyclone separator, 78-air-introduced machine, 79-storage heater, 8-hydrochloric acid tank, 9-sewage-treatment plant.

[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 a kind of production line for producing chlorinated polyethylene of the present utility model, in figure Production line, including the reactor 1 for chlorination reaction being sequentially connected, for filtering the belt vacuum filter 2 of washing, waiting to expect Groove 2a, 3, centrifuge 4 of filter, for soaking the homogenizing tank 5 of deacidification, secondary centrifuging machine 6 and boiling-bed drying 7；Wherein Described reactor 1, homogenizing tank 5, boiling-bed drying 7 are all lined with acid proof inner lining body；Described belt vacuum filter 2, The part that secondary centrifuge 4, the inside of secondary centrifuging machine 6 contact with material all uses acid resistant material to make.

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 Correspondence one is all for equipment (often set consersion unit includes reactor 1, belt vacuum filter 2, filter 3 and a centrifuge 4) Change tank 5, by the 4 corresponding homogenizing tanks 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 belt vacuum filter 2 after the material after chlorination reaction being cooled to 80-90 DEG C and carries out solid Liquid separates and washing；After filter 3 removes coarse fodder, then a centrifuge 4 is used to slough thing after belt vacuum filter 2 processes Moisture in material；Then by described once centrifugal after material be soaked in water in homogenizing tank 5, soak more than 3 hours；Then adopt The moisture in the material after immersion is sloughed with acid proof secondary centrifuging machine 6；Finally use boiling-bed drying 7 that material is done Dry get product.

This utility model, by improving equipment, when producing, makes the technique of deacidification be improved, during production first Use belt vacuum filter to carry out solid-liquid separation and washing remove the floating acid of product surface and other impurity, the step for not Need, as tradition washing needs washing more than 4-5 time, substantial amounts of water to be saved.Material can be removed carried through once centrifugal after filtration The floating acid of moisture content and further removing.Then, by the way of being soaked in water, the slow acid of chlorinated polyethylene inside particles is made to discharge Out, traditional method is to neutralize the acid of chlorinated polyethylene inside particles with alkali, and needs heating, and the time used is 4 little More than time, it is sometimes desirable to 7-8 hour；And this utility model uses the mode soaked, will change into the method for inside fire attack dechlorinationization hydrogen It is made to discharge by osmosis.Soaking after more than 3 hours, will soak water releasing, then by clean water one time, The content of hydrochloric acid is down to less than 0.5%；Finally being dried through boiling-bed drying, remaining hydrochloric acid discharges with hydrogen chloride form again Going out, and chlorinated polyethylene will not be caused to turn to be yellow owing to concentration is low, final products excellent performance, quality is higher than national standard.Use Above-mentioned production system produces, and water consumption is less, produces a still (by 12 tons of calculation of capacity) chlorinated polyethylene than traditional work Skill can be with using water wisely more than 15 tons.

Switching to realize the production of acid phase process and Aqueous phase, this production line has also been carried out further by this utility model Improve, be specifically shown in Fig. 1, increase in production system and at least one hydrochloric acid tank 8 is set；And belt vacuum filter 2 includes solid Liquid separator structure 21, strainer wiper mechanism 22, solid-liquid separation device has leakage fluid dram, and leakage fluid dram is connected to sewage by discharging tube Processing means 9, discharging tube is additionally provided with three-way valve, and the bypass interface of three-way valve is connected to described hydrochloric acid tank, salt by pipeline The outlet of acid storage tank is connected to described reactor.

When hydrochloric acid market are preferable, after using Aqueous phase to produce hydrochloric acid, open the side of the three-way valve 10 that discharging tube 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 utility model wound with novelty Make.

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. one kind for producing the production line of chlorinated polyethylene, it is characterised in that: include being sequentially connected for chlorination reaction Reactor, for filter the belt vacuum filter of washing, centrifuge, for soaking the homogenizing tank of deacidification, secondary centrifuging Machine and boiling-bed drying；Described reactor, homogenizing tank, boiling-bed drying are all lined with acid proof inner lining body；Described belt is true The part that empty filter, centrifuge, an inside for secondary centrifuging machine contact with material all uses acid resistant material to make.

A kind of production line for producing chlorinated polyethylene the most according to claim 1, it is characterised in that: described belt is true It is connected with between empty filter and a centrifuge and treats hopper.

A kind of production line for producing chlorinated polyethylene the most according to claim 2, it is characterised in that: expect described waiting It is also connected with being provided with filter between groove and a centrifuge.

4. according to a kind of production line for producing chlorinated polyethylene described in claim 1,2 or 3, it is characterised in that: described Production system also includes at least one hydrochloric acid tank；Described belt vacuum filter includes solid-liquid separation device, strainer cleaning machine Structure, solid-liquid separation device has leakage fluid dram, and leakage fluid dram is connected to sewage-treatment plant by discharging tube, and discharging tube is additionally provided with three Logical valve, the bypass interface of three-way valve is connected to described hydrochloric acid tank by pipeline, and the outlet of hydrochloric acid tank is connected to described reaction Still.

A kind of production line for producing chlorinated polyethylene the most according to claim 4, it is characterised in that: described homogenizing tank The acid proof inner lining body of liner is fiberglass, and described homogenizing tank includes homogenizing tank body and agitating device, at homogenizing tank body Sidewall be provided with the filter communicated with homogenizing tank body interior；It is provided with homogenizing tank discharging opening in the bottom of homogenizing tank body；All Change tank discharging opening and be connected to secondary centrifuging machine.

A kind of production line for producing chlorinated polyethylene the most according to claim 4, it is characterised in that: described homogenizing tank The twice that volume is described washing kettle volume more than.

A kind of production line for producing chlorinated polyethylene the most according to claim 3, it is characterised in that: described filter The second screen plate intersected including filter chamber, the first screen plate and the first screen plate, described filter chamber is by described first screen plate It is separated into the adjacent feed space in left and right, discharge chamber；Described second screen plate is in the tilted setting of feed space, and is separated by feed space Become 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, Described discharge chamber 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.

A kind of production line for producing chlorinated polyethylene the most according to claim 1, it is characterised in that: described boiling is done Dry bed includes drying bed body, enters hot air apparatus, cyclone separator and air exhausting device；Described enter hot air apparatus include aerator, Storage heater, described storage heater is connected with the bottom of described drying bed body by intake stack；Described air exhausting device Including air-introduced machine, wind pipe and air inducing pipeline, the top of described drying bed body is by described wind pipe and cyclonic separation Device connects, and described air-introduced machine is connected with cyclone separator by described air inducing pipeline；Offer on the sidewall of described drying bed body Having charging aperture and discharging opening, this internal sieve plate that is provided with of drying bed, described drying bed also includes stirring dispersing device, described stirring Dispersing device includes being arranged on the stirring power set below drying bed body, is arranged on the stirring vane of drying bed body interior And connect stirring power set and the rotating shaft of stirring vane；Described stirring vane is positioned at the top of sieve plate, vertical with sieve plate Distance is 0.5-50mm.

A kind of production line for producing chlorinated polyethylene the most according to claim 8, it is characterised in that: described paddle The surface of sheet is provided with hairbrush or several equally distributed protrusions.

A kind of production line for producing chlorinated polyethylene the most according to claim 7, it is characterised in that: described first Offer through hole on screen plate, the second screen 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 are the elliptical hole of 0.6-1.2cm, and aperture is the manhole of 0.6-1.5cm, and the length of side is 0.6-1.5cm rectangle The combination of one or more in through hole.