CN108912252B - Chlorinated polyethylene production process - Google Patents
Chlorinated polyethylene production process Download PDFInfo
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- CN108912252B CN108912252B CN201810602195.5A CN201810602195A CN108912252B CN 108912252 B CN108912252 B CN 108912252B CN 201810602195 A CN201810602195 A CN 201810602195A CN 108912252 B CN108912252 B CN 108912252B
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- chlorinated polyethylene
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- washing
- polyethylene
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- 239000004709 Chlorinated polyethylene Substances 0.000 title claims abstract description 120
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 19
- 238000005406 washing Methods 0.000 claims abstract description 47
- 238000001035 drying Methods 0.000 claims abstract description 25
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims abstract description 18
- 238000000034 method Methods 0.000 claims abstract description 17
- 238000007873 sieving Methods 0.000 claims abstract description 17
- 239000004698 Polyethylene Substances 0.000 claims abstract description 16
- -1 polyethylene Polymers 0.000 claims abstract description 16
- 229920000573 polyethylene Polymers 0.000 claims abstract description 16
- 238000005660 chlorination reaction Methods 0.000 claims abstract description 8
- KZBUYRJDOAKODT-UHFFFAOYSA-N Chlorine Chemical compound ClCl KZBUYRJDOAKODT-UHFFFAOYSA-N 0.000 claims abstract description 4
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 claims abstract description 4
- 229910052801 chlorine Inorganic materials 0.000 claims abstract description 4
- 239000000460 chlorine Substances 0.000 claims abstract description 4
- 230000018044 dehydration Effects 0.000 claims abstract description 4
- 238000006297 dehydration reaction Methods 0.000 claims abstract description 4
- 238000001914 filtration Methods 0.000 claims abstract description 4
- 239000003999 initiator Substances 0.000 claims abstract description 4
- 239000007800 oxidant agent Substances 0.000 claims abstract description 4
- 230000001590 oxidative effect Effects 0.000 claims abstract description 4
- 238000003756 stirring Methods 0.000 claims description 47
- 239000002245 particle Substances 0.000 claims description 32
- 229920001971 elastomer Polymers 0.000 claims description 16
- 238000010438 heat treatment Methods 0.000 claims description 9
- 238000012216 screening Methods 0.000 claims description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 4
- 238000002360 preparation method Methods 0.000 abstract description 2
- 239000000463 material Substances 0.000 description 14
- 239000000047 product Substances 0.000 description 14
- 230000000694 effects Effects 0.000 description 4
- 238000002156 mixing Methods 0.000 description 4
- 238000010924 continuous production Methods 0.000 description 3
- 238000003860 storage Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000018109 developmental process Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 239000011435 rock Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 238000004040 coloring Methods 0.000 description 1
- 239000012043 crude product Substances 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 239000002861 polymer material Substances 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 230000009967 tasteless effect Effects 0.000 description 1
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Classifications
-
- 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
Abstract
The invention belongs to the technical field of chlorinated polyethylene preparation, and particularly relates to a chlorinated polyethylene production process, which comprises the following steps: adding hydrochloric acid into polyethylene, and dissolving the polyethylene after the hydrochloric acid reacts with the polyethylene; after the polyethylene is dissolved, adding an oxidant and an initiator for replacement; after the replacement is finished, introducing chlorine gas to carry out chlorination reaction; after chlorine is introduced for chlorination for 30 minutes, filtering to obtain a high-concentration chlorinated polyethylene solution; deacidifying the chlorinated polyethylene solution in a filter; the filtered and deacidified chlorinated polyethylene solution enters a centrifuge for dehydration, and then is dried to obtain a chlorinated polyethylene product; and (5) washing, drying and sieving the chlorinated polyethylene product in the step six by using a chlorinated polyethylene comprehensive treatment device. The process is mainly used for producing chlorinated polyethylene in batches, three procedures of washing, drying and sieving the chlorinated polyethylene are integrated into one device, and the production efficiency is improved.
Description
Technical Field
The invention belongs to the technical field of chlorinated polyethylene preparation, and particularly relates to a production process of chlorinated polyethylene.
Background
The chlorinated polyethylene is white powder in appearance, is nontoxic and tasteless, is a saturated high polymer material, has excellent weather resistance, ozone resistance, chemical medicine resistance and aging resistance, and has good oil resistance, flame retardance and coloring performance. Good toughness and other high molecular materials have good compatibility and higher decomposition temperature. Along with the development of economy, the domestic demand for chlorinated polyethylene is more and more increased, and particularly, the development of the wire and cable industry and the automobile accessory manufacturing industry drives the consumption demand for the chlorinated polyethylene. In the production process of chlorinated polyethylene, the chlorinated polyethylene needs to be dried and then made into powder.
When the chlorinated polyethylene is prepared by adopting the water phase suspension method, dilute hydrochloric acid and excessive alkalis which are remained on the surface of a product need to be washed, the washed chlorinated polyethylene needs to be dried, so that the water content of the product reaches the specified standard, in addition, in order to ensure the specification of the product, overlarge and undersize particles in the product need to be removed, and the chlorinated polyethylene with reasonable particle size is screened out.
In the existing chlorinated polyethylene production process, when the chlorinated polyethylene crude product is washed, dried and sieved, three processes need to be carried out on three devices to complete the process, which is not beneficial to the continuous production of products, wastes manpower and energy cost and reduces the production efficiency.
Disclosure of Invention
In order to make up for the defects of the prior art, the invention provides a chlorinated polyethylene production process which is mainly used for producing chlorinated polyethylene in batches, three procedures of washing, drying and sieving the chlorinated polyethylene are integrated into one device, so that the continuous production of the chlorinated polyethylene is facilitated, the workload of staff is reduced, and the production efficiency is improved.
The technical scheme adopted by the invention for solving the technical problems is as follows: the invention relates to a production process of chlorinated polyethylene, which comprises the following steps:
the method comprises the following steps: adding hydrochloric acid into polyethylene, wherein the hydrochloric acid reacts with the polyethylene and then suspends the polyethylene in the polyethylene;
step two: after the first step is finished, adding an oxidant and an initiator for replacement;
step three: after the replacement in the second step is finished, introducing chlorine gas for chlorination reaction;
step four: chlorine is introduced into the step T for chlorination for 30 minutes, and then filtration treatment is carried out to obtain a high-concentration chlorinated polyethylene solution;
step five: the chlorinated polyethylene solution in the fourth step enters a filter for deacidification;
step six: the chlorinated polyethylene solution which is filtered and deacidified in the fifth step enters a centrifugal machine for dehydration, and then is dried to obtain a chlorinated polyethylene product;
step seven: washing, drying and screening the chlorinated polyethylene product in the sixth step by using a chlorinated polyethylene comprehensive treatment device;
the chlorinated polyethylene comprehensive treatment device in the seventh step comprises a shell, an air suction pump, a motor I, a material receiving disc, a washing module, a drying module and a sieving module, wherein the shell is divided into an upper layer and a lower layer; the washing module is positioned in the upper layer of the shell and is used for washing chlorinated polyethylene; the drying module is positioned at the lower layer of the shell and is used for drying chlorinated polyethylene; the air suction pump is arranged on the outer side of the lower layer of the shell and used for sucking wet air of the lower layer of the shell; the screening module is positioned below the shell and used for screening chlorinated polyethylene products with different sizes and particles; the motor is positioned on the ground; the receiving plate is arranged on a motor shaft of the motor I and is divided into three grids.
The washing module comprises a second motor, a circular ring, an air bag, a vertical rod, a rope, a stirring rod and a washing disc, wherein the second motor is arranged at the upper end of the shell; the circular ring is fixedly arranged on a motor shaft of the motor II, a through hole is formed in the circular ring, and a spherical pin is movably arranged in the through hole; the vertical rod penetrates through the ball pin; the air bag is arranged on the vertical rod; one end of the rope is arranged at the lower end of the vertical rod; the stirring rod is fixed on the rope; the washing dish and the other end fixed connection of rope, the washing dish is six check dishes, six check dishes can take place to remove, seted up the inlet opening on six check dishes's the lateral wall, six check dish bottom are installed automatically controlled door. The during operation, the second motor starts, and the second motor drives the ring and rotates, because the gasbag receives the effect of buoyancy, simultaneously under the drive of ring, rocks under the drive of gasbag when the washing dish takes place to rotate along with the ring for chlorinated polyethylene in the washing dish washes more thoroughly.
The drying module comprises a motor III, a stirring shaft, stirring blades and a heating coil, and the motor III is arranged on the left side of the shell; the stirring shaft is arranged on the motor III; the stirring blades are hinged on the stirring shaft; the heating coil is arranged inside the stirring blade. During operation, the chlorinated polyethylene after washing falls into the middle of the lower floor of casing, and motor three starts, and heating coil circular telegram simultaneously, and motor three drives the (mixing) shaft and rotates, and the (mixing) shaft drives stirring vane and rotates for the drying rate of chlorinated polyethylene.
The stirring shaft also comprises a spring I, an electromagnet II and a supporting rod, and the stirring shaft is provided with a groove I; the first electromagnet is fixedly arranged at the bottom of the first groove; one end of the first spring is connected with the first electromagnet; the second electromagnet is fixedly connected with the other end of the first spring; one end of the supporting rod is fixedly connected with the second electromagnet, and the other end of the supporting rod is hinged on the stirring blade. The during operation, electro-magnet one and two circular telegrams of electro-magnet, electro-magnet one and two mutual repulsion of electro-magnet, electro-magnet two is to the rebound, and electro-magnet two struts stirring vane to different angles through the bracing piece, and according to the quantity of chlorinated polyethylene of difference, stirring vane's opening degree is different.
The screening module comprises a motor IV, a belt pulley, a belt, a first sliding block, a second sliding block, a third sliding block, a roller, a second spring and a limiting plate, wherein the motor IV is fixed on the support; the belt pulley is arranged on a motor shaft of the motor IV; the belt is sleeved on the belt pulley, and a second groove is formed in the belt; the first sliding block, the second sliding block and the third sliding block are respectively positioned in a second groove on the belt from left to right, round holes are formed in the first sliding block and the second sliding block, and the diameter of the round hole of the first sliding block is larger than that of the round hole of the second sliding block; the second spring is arranged at the bottom of the second groove; the roller is arranged at the upper right corners of the first sliding block, the second sliding block and the third sliding block; the limiting plate is installed at the lower end of the shell, and an inclined plate is installed on the lower left side of the limiting plate. When the machine works, the dried chlorinated polyethylene falls onto a belt from a shell, a motor IV is started, the motor IV drives a belt pulley to rotate, the belt pulley enables the belt to move, the first sliding block, the second sliding block and the third sliding block are different according to respective heights, the chlorinated polyethylene is screened, the chlorinated polyethylene with small particles is conveyed to a material receiving disc by the third sliding block and the belt, the chlorinated polyethylene with medium particles is conveyed to the material receiving disc by the second sliding block and the belt, the chlorinated polyethylene with small particles mixed in is slipped down through the round holes of the second sliding block, the chlorinated polyethylene with large particles is conveyed to the material receiving disc by the third sliding block and the belt, the chlorinated polyethylene with medium and small particles mixed in is slipped down through the round holes of the third sliding block, and the chlorinated polyethylene with different particle sizes is conveyed to three grids of the material receiving disc according to the particle size for storage; when the first sliding block, the second sliding block and the third sliding block move to the lower side of the limiting plate, the roller and the limiting plate slide in a rolling mode, friction is reduced, and meanwhile the first sliding block, the second sliding block and the third sliding block are slowly pressed into the second groove of the belt.
The belt further comprises vibration rubber, a third spring, a moving block and a limiting block, and a third groove and a fourth groove are formed in the belt; the vibration rubber is positioned in the fourth groove; the spring III is positioned in the groove III, and one end of the spring III is fixedly connected with the vibration rubber; the moving block is positioned in the third groove and fixedly connected with the other end of the third spring; the limiting block is fixedly arranged on the moving block. During operation, the moving block collides with the moving plate below the moving block, so that the moving block vibrates up and down, the moving block transmits vibration to the vibration rubber through the spring III, chlorinated polyethylene on the vibration rubber vibrates, so that the chlorinated polyethylene particles are sieved better in a layering mode, and the chlorinated polyethylene with smaller particles falls down through the round holes in the sliding block II and the sliding block III.
The belt pulley is provided with a turntable, a connecting rod and a moving plate, and the turntable is arranged on a motor shaft of the motor IV; one end of the connecting rod is fixed on the turntable; the movable plate is arranged at the other end of the connecting rod, and a hemispherical bulge is arranged on the movable plate. When the device works, the turntable rotates along with the motor IV, and the turntable enables the moving plate to swing back and forth through the connecting rod.
The invention has the beneficial effects that:
1. the chlorinated polyethylene production process is mainly used for producing chlorinated polyethylene in batches, three procedures of washing, drying and sieving the chlorinated polyethylene are integrated into one device, so that the continuous production of the chlorinated polyethylene is facilitated, the workload of staff is reduced, the production efficiency is improved, the process is simplified, and the production cost is reduced.
2. The washing module provided by the invention utilizes the mutual matching of the circular ring, the air bag, the vertical rod, the rope, the stirring rod and the washing disc, so that chlorinated polyethylene is washed, and the washing treatment is carried out on the residual diluted hydrochloric acid and excessive alkalinized substances on the surface of the product, so that the washing module is good in washing effect, short in washing time and capable of improving the quality of the product.
3. According to the sieving module, the belt pulley, the belt, the first sliding block, the second sliding block, the third sliding block, the roller, the second spring and the limiting plate are matched with one another, so that chlorinated polyethylene is sieved, and the chlorinated polyethylene is separately sieved and stored according to different particle diameters of the chlorinated polyethylene, so that the product quality is ensured.
Drawings
The invention will be further explained with reference to the drawings.
FIG. 1 is a process flow diagram of the present process;
FIG. 2 is a front view of the present invention;
FIG. 3 is a cross-sectional view A-A of FIG. 2 according to the present invention;
FIG. 4 is a cross-sectional view taken along line B-B of FIG. 2 according to the present invention;
FIG. 5 is an enlarged view at C of FIG. 2 in accordance with the present invention;
FIG. 6 is a schematic diagram of a washing module according to the present invention;
FIG. 7 is an enlarged view taken at D of FIG. 2 in accordance with the present invention;
FIG. 8 is an enlarged view at E of FIG. 2 in the present invention;
in the figure: the device comprises a shell 1, an air suction pump 2, a first motor 3, a material receiving disc 4, a washing module 5, a second motor 51, a circular ring 52, an air bag 53, a vertical rod 54, a rope 55, a stirring rod 56, a washing disc 57, a drying module 6, a third motor 61, a stirring shaft 62, a stirring blade 63, a first spring 64, a first electromagnet 65, a second electromagnet 66, a supporting rod 67, a sieving module 7, a belt pulley 72, a rotating disc 721, a connecting rod 722, a moving plate 723, a belt 73, vibration rubber 731, a third spring 732, a moving block 733, a limiting block 734, a first slider 74, a second slider 75, a third slider 76, a roller 77, a second spring 78 and a limiting plate 79.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.
As shown in fig. 1 to 8, the chlorinated polyethylene production process of the present invention comprises the following steps:
the method comprises the following steps: adding hydrochloric acid into polyethylene, wherein the hydrochloric acid reacts with the polyethylene and then suspends the polyethylene in the polyethylene;
step two: after the first step is finished, adding an oxidant and an initiator for replacement;
step three: after the replacement in the second step is finished, introducing chlorine gas for chlorination reaction;
step four: chlorine is introduced into the step T for chlorination for 30 minutes, and then filtration treatment is carried out to obtain a high-concentration chlorinated polyethylene solution;
step five: the chlorinated polyethylene solution in the fourth step enters a filter for deacidification;
step six: the chlorinated polyethylene solution which is filtered and deacidified in the fifth step enters a centrifugal machine for dehydration, and then is dried to obtain a chlorinated polyethylene product;
step seven: washing, drying and screening the chlorinated polyethylene product in the sixth step by using a chlorinated polyethylene comprehensive treatment device;
the chlorinated polyethylene comprehensive treatment device in the seventh step comprises a shell 1, an air pump 2, a motor I3, a material receiving disc 4, a washing module 5, a drying module 6 and a sieving module 7, wherein the shell 1 is divided into an upper layer and a lower layer; the washing module 5 is positioned in the upper layer of the shell 1, and the washing module 5 is used for washing chlorinated polyethylene; the drying module 6 is positioned at the lower layer of the shell 1, and the drying module 6 is used for drying chlorinated polyethylene; the air suction pump 2 is arranged on the outer side of the lower layer of the shell 1, and the air suction pump 2 is used for sucking wet air in the lower layer of the shell 1; the sieving module 7 is positioned below the shell 1, and the sieving module 7 is used for sieving chlorinated polyethylene products with different sizes and granules; the first motor 3 is positioned on the ground; the material receiving disc 4 is arranged on a motor shaft of the motor I3, and the material receiving disc 4 is divided into three grids.
The washing module 5 comprises a second motor 51, a circular ring 52, an air bag 53, a vertical rod 54, a rope 55, a stirring rod 56 and a washing disc 57, wherein the second motor 51 is arranged at the upper end of the shell 1; the circular ring 52 is fixedly arranged on a motor shaft of the second motor 51, a through hole is formed in the circular ring 52, and a spherical pin is movably arranged in the through hole; the vertical rod 54 penetrates through the ball pin; the air bag 53 is arranged on the vertical rod 54; one end of the rope 55 is arranged at the lower end of the vertical rod 54; the stirring rod 56 is fixed on the rope 55; the other end fixed connection of washing dish 57 and rope 55, washing dish 57 is six check dishes, six check dishes can take place to remove, seted up the inlet opening on six check dishes's the lateral wall, six check dish bottom are installed automatically controlled door. During operation, the second motor 51 starts, and the second motor 51 drives the ring 52 to rotate, because gasbag 53 receives the effect of buoyancy, simultaneously under the drive of ring 52, rocks under the drive of gasbag 53 when washing dish 57 takes place to rotate along with ring 52 for chlorinated polyethylene in the washing dish 57 washes more thoroughly.
The drying module 6 comprises a motor III 61, a stirring shaft 62, stirring blades 63 and a heating coil, wherein the motor III 61 is arranged on the left side of the shell 1; the stirring shaft 62 is arranged on the motor III 61; the stirring blade 63 is hinged on the stirring shaft 62; the heating coil is installed inside the agitating blade 63. During operation, the chlorinated polyethylene after washing falls into the middle of the lower floor of casing 1, and motor three 61 starts, and heating coil circular telegram simultaneously, and motor three 61 drives (mixing) shaft 62 and rotates, and (mixing) shaft 62 drives stirring vane 63 and rotates for the drying rate of chlorinated polyethylene.
The stirring shaft 62 further comprises a first spring 64, a first electromagnet 65, a second electromagnet 66 and a support rod 67, and the stirring shaft 62 is provided with a first groove; the electromagnet I65 is fixedly arranged at the bottom of the groove I; one end of the first spring 64 is connected with the first electromagnet 65; the second electromagnet 66 is fixedly connected with the other end of the first spring 64; one end of the supporting rod 67 is fixedly connected with the second electromagnet 66, and the other end of the supporting rod 67 is hinged on the stirring blade 63. During operation, electro-magnet 65 and two 66 circular telegrams of electro-magnet, and electro-magnet 65 and two 66 mutual repulsion of electro-magnet, two 66 rebound of electro-magnet, and two 66 struts stirring vane 63 to different angles through bracing piece 67, and according to the quantity of the chlorinated polyethylene of difference, stirring vane 63's opening degree is different.
The sieving module 7 comprises a motor IV, a belt pulley 72, a belt 73, a first slide block 74, a second slide block 75, a third slide block 76, a roller 77, a second spring 78 and a limiting plate 79, wherein the motor IV is fixed on the support; the belt pulley 72 is arranged on a motor shaft of the motor IV; the belt 73 is sleeved on the belt pulley 72, and a second groove is formed in the belt 73; the first sliding block 74, the second sliding block 75 and the third sliding block 76 are respectively positioned in a second groove on the belt 73 from left to right, round holes are formed in the first sliding block 74 and the second sliding block 75, and the diameter of the round hole of the first sliding block 74 is larger than that of the round hole of the second sliding block 75; the second spring 78 is arranged at the bottom of the second groove; the roller 77 is arranged at the upper right corners of the first sliding block 74, the second sliding block 75 and the third sliding block 76; limiting plate 79 install the lower extreme at casing 1, a swash plate is installed to limiting plate 79's left downside. When the machine works, the dried chlorinated polyethylene falls onto the belt 73 from the shell 1, the motor IV is started, the motor IV drives the belt pulley 72 to rotate, the belt pulley 72 enables the belt 73 to move, the first sliding block 74, the second sliding block 75 and the third sliding block 76 sieve the chlorinated polyethylene according to the respective height difference, the chlorinated polyethylene with small particles is conveyed to the material receiving tray 4 by the third sliding block 76 and the belt 73, the chlorinated polyethylene with medium particles is conveyed into the receiving tray 4 by the second sliding block 75 and the belt 73, wherein the mixed small-particle chlorinated polyethylene slides down through the round holes of the second sliding block 75, the large-particle chlorinated polyethylene is conveyed into the material receiving tray 4 by the third sliding block 76 and the belt 73, the mixed medium and small chlorinated polyethylene particles slide through the round holes of the third slide block 76, and the chlorinated polyethylene particles with different sizes are conveyed to the three lattices of the receiving tray 4 according to the sizes of the particles for storage; when the first slider 74, the second slider 75 and the third slider 76 move below the limit plate 79, the roller 77 and the limit plate 79 roll and slide to reduce friction, and meanwhile, the first slider 74, the second slider 75 and the third slider 76 are slowly pressed into the second groove of the belt 73.
The belt 73 further comprises a vibration rubber 731, a spring III 732, a moving block 733 and a limiting block 734, and the belt 73 is provided with a groove III and a groove IV; the vibration rubber 731 is positioned in the fourth groove; the spring III 732 is positioned in the groove III, and one end of the spring III 732 is fixedly connected with the vibration rubber 731; the moving block 733 is located in the third groove, and the moving block 733 is fixedly connected with the other end of the third spring 732; the limiting block 734 is fixedly mounted on the moving block 733. During operation, the moving block 733 collides with the moving plate 723 below, so that the moving block 733 vibrates up and down, the moving block 733 transmits the vibration to the vibration rubber 731 through the third spring 732, chlorinated polyethylene on the vibration rubber 731 vibrates, so that the chlorinated polyethylene particles are sieved better in a layering mode, and the chlorinated polyethylene with smaller particles slides down through the round holes in the second sliding block 75 and the third sliding block 76.
The belt pulley 72 is provided with a rotary disc 721, a connecting rod 722 and a moving plate 723, and the rotary disc 721 is arranged on a motor shaft of a motor IV; one end of the connecting rod 722 is fixed on the rotating disc 721; the moving plate 723 is arranged at the other end of the connecting rod 722, and the moving plate 723 is provided with a hemispherical bulge. In operation, the turntable 721 rotates along with the motor four, and the turntable 721 swings the moving plate 723 back and forth through the connecting rod 722.
The specific use flow is as follows:
adding chlorinated polyethylene into the upper layer of the shell 1, adding clean water at the same time, starting the second motor 51, driving the second motor 51 to rotate the circular ring 52, and driving the circular ring 52 to rotate and shake under the driving of the circular ring 53 when the washing disc 57 rotates along with the circular ring 52 due to the buoyancy of the air bag 53, so that the chlorinated polyethylene in the washing disc 57 is washed more thoroughly;
the washed chlorinated polyethylene falls into the lower layer of the shell 1, the motor III 61 is started, the heating coil is electrified at the same time, the motor III 61 drives the stirring shaft 62 to rotate, the stirring shaft 62 drives the stirring blades 63 to rotate, the electromagnet I65 and the electromagnet II 66 are electrified at the same time, the electromagnet I65 and the electromagnet II 66 repel each other, the electromagnet II 66 moves upwards, the electromagnet II 66 props the stirring blades 63 open to different angles through the supporting rods 67, the opening degree of the stirring blades 63 is different according to the number of different chlorinated polyethylene, and the drying speed of the chlorinated polyethylene is accelerated;
the dried chlorinated polyethylene falls onto the belt 73 from the shell 1, the motor IV is started, the motor IV drives the belt pulley 72 to rotate, the belt pulley 72 enables the belt 73 to move, the first sliding block 74, the second sliding block 75 and the third sliding block 76 sieve the chlorinated polyethylene according to the respective height difference, the small-particle chlorinated polyethylene is conveyed to the material receiving tray 4 by the third sliding block 76 and the belt 73, the chlorinated polyethylene with medium particles is conveyed into the receiving tray 4 by the second sliding block 75 and the belt 73, wherein the mixed small-particle chlorinated polyethylene slides down through the round holes of the second sliding block 75, the large-particle chlorinated polyethylene is conveyed into the material receiving tray 4 by the third sliding block 76 and the belt 73, the mixed medium and small chlorinated polyethylene particles slide through the round holes of the third slide block 76, and the chlorinated polyethylene particles with different sizes are conveyed to the three lattices of the receiving tray 4 according to the sizes of the particles for storage; when the first slider 74, the second slider 75 and the third slider 76 move below the limit plate 79, the roller 77 and the limit plate 79 roll and slide to reduce friction, and meanwhile, the first slider 74, the second slider 75 and the third slider 76 are slowly pressed into the second groove of the belt 73;
the rotating disc 721 rotates along with the motor IV, the rotating disc 721 enables the moving plate 723 to swing back and forth through the connecting rod 722, the moving block 733 collides with the moving plate 723 below the moving block 733, the moving block 733 vibrates up and down, the vibration is transmitted to the vibration rubber 731 through the spring III 732 by the moving block 733, the chlorinated polyethylene on the vibration rubber 731 vibrates, so that the chlorinated polyethylene particles are sieved better in a layered mode, and the chlorinated polyethylene with smaller particles slides down through the circular holes in the sliding block II 75 and the sliding block III 76.
The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (6)
1. A production process of chlorinated polyethylene is characterized in that: the process comprises the following steps:
the method comprises the following steps: adding hydrochloric acid into polyethylene, wherein the hydrochloric acid reacts with the polyethylene and then suspends the polyethylene in the polyethylene;
step two: after the first step is finished, adding an oxidant and an initiator for replacement;
step three: after the replacement in the second step is finished, introducing chlorine gas for chlorination reaction;
step four: chlorine is introduced into the step T for chlorination for 30 minutes, and then filtration treatment is carried out to obtain a high-concentration chlorinated polyethylene solution;
step five: the chlorinated polyethylene solution in the fourth step enters a filter for deacidification;
step six: the chlorinated polyethylene solution which is filtered and deacidified in the fifth step enters a centrifugal machine for dehydration, and then is dried to obtain a chlorinated polyethylene product;
step seven: washing, drying and screening the chlorinated polyethylene product in the sixth step by using a chlorinated polyethylene comprehensive treatment device;
the chlorinated polyethylene comprehensive treatment device in the seventh step comprises a shell (1), an air pump (2), a motor I (3), a receiving disc (4), a washing module (5), a drying module (6) and a sieving module (7), wherein the shell (1) is divided into an upper layer and a lower layer; the washing module (5) is positioned in the upper layer of the shell (1), and the washing module (5) is used for washing chlorinated polyethylene; the drying module (6) is positioned at the lower layer of the shell (1), and the drying module (6) is used for drying chlorinated polyethylene; the air suction pump (2) is arranged on the outer side of the lower layer of the shell (1), and the air suction pump (2) is used for sucking wet air in the lower layer of the shell (1); the sieving module (7) is positioned below the shell (1), and the sieving module (7) is used for sieving chlorinated polyethylene products with different sizes and particles; the first motor (3) is positioned on the ground; the receiving disc (4) is arranged on a motor shaft of the motor I (3), and the receiving disc (4) is divided into three grids;
the washing module (5) comprises a second motor (51), a circular ring (52), an air bag (53), a vertical rod (54), a rope (55), a stirring rod (56) and a washing disc (57), wherein the second motor (51) is arranged at the upper end of the shell (1); the circular ring (52) is fixedly arranged on a motor shaft of the motor II (51), a through hole is formed in the circular ring (52), and a spherical pin is movably arranged in the through hole; the vertical rod (54) penetrates through the ball pin; the air bag (53) is arranged on the vertical rod (54); one end of the rope (55) is arranged at the lower end of the vertical rod (54); the stirring rod (56) is fixed on the rope (55); the washing plate (57) is fixedly connected with the other end of the rope (55), the washing plate (57) is a six-grid plate, the six-grid plate can move, a water inlet hole is formed in the side wall of the six-grid plate, and an electric control door is installed at the bottom of the six-grid plate.
2. A process for producing chlorinated polyethylene according to claim 1, wherein: the drying module (6) comprises a motor III (61), a stirring shaft (62), stirring blades (63) and a heating coil, wherein the motor III (61) is arranged on the left side of the shell (1); the stirring shaft (62) is arranged on the motor III (61); the stirring blade (63) is hinged on the stirring shaft (62); the heating coil is installed inside the stirring blade (63).
3. A process for producing chlorinated polyethylene according to claim 2, wherein: the stirring shaft (62) further comprises a first spring (64), a first electromagnet (65), a second electromagnet (66) and a supporting rod (67), and the stirring shaft (62) is provided with a first groove; the electromagnet I (65) is fixedly arranged at the bottom of the groove I; one end of the first spring (64) is connected with the first electromagnet (65); the second electromagnet (66) is fixedly connected with the other end of the first spring (64); one end of the supporting rod (67) is fixedly connected with the second electromagnet (66), and the other end of the supporting rod (67) is hinged on the stirring blade (63).
4. A process for producing chlorinated polyethylene according to claim 1, wherein: the sieving module (7) comprises a motor four, a belt pulley (72), a belt (73), a slide block I (74), a slide block II (75), a slide block III (76), a roller (77), a spring II (78) and a limiting plate (79), wherein the motor four is fixed on the support; the belt pulley (72) is arranged on a motor shaft of the motor IV; the belt (73) is sleeved on the belt pulley (72), and a second groove is formed in the belt (73); the first sliding block (74), the second sliding block (75) and the third sliding block (76) are respectively positioned in a second groove on the belt (73) from left to right, round holes are formed in the first sliding block (74) and the second sliding block (75), and the diameter of the round hole of the first sliding block (74) is larger than that of the round hole of the second sliding block (75); the second spring (78) is arranged at the bottom of the second groove; the roller (77) is arranged at the upper right corner of the first sliding block (74), the second sliding block (75) and the third sliding block (76); limiting plate (79) install the lower extreme at casing (1), a swash plate is installed to the left downside of limiting plate (79).
5. A chlorinated polyethylene production process according to claim 4, characterized in that: the belt (73) further comprises a vibration rubber (731), a spring III (732), a moving block (733) and a limiting block (734), and a groove III and a groove IV are formed in the belt (73); the vibration rubber (731) is positioned in the fourth groove; the spring III (732) is positioned in the groove III, and one end of the spring III (732) is fixedly connected with the vibration rubber (731); the moving block (733) is located in the third groove, and the moving block (733) is fixedly connected with the other end of the third spring (732); the limiting block (734) is fixedly arranged on the moving block (733).
6. A chlorinated polyethylene production process according to claim 4, characterized in that: the pulley (72) is provided with a turntable (721), a connecting rod (722) and a moving plate (723), and the turntable (721) is arranged on a motor shaft of the motor IV; one end of the connecting rod (722) is fixed on the rotating disc (721); the moving plate (723) is arranged at the other end of the connecting rod (722), and the moving plate (723) is provided with a hemispherical bulge.
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| JP2921026B2 (en) * | 1990-05-14 | 1999-07-19 | ダイキン工業株式会社 | Tetrafluoroethylene copolymer and method for producing the same |
| CN102233622A (en) * | 2010-04-20 | 2011-11-09 | 东莞翔辉插头零件制造厂 | Machine and process for drying vacuum plastic |
| CN102690382A (en) * | 2012-06-14 | 2012-09-26 | 江苏中煦高分子材料有限公司 | Linear low density polyethylene synthesis process by means of chlorination through aqueous suspension method |
| CN203862611U (en) * | 2014-05-27 | 2014-10-08 | 内江市运通塑料助剂有限公司 | Three-in-one device used for integrating washing, drying and sieving and applied to chlorinated polyethylene preparation |
| CN105175585A (en) * | 2015-10-14 | 2015-12-23 | 奉化市裕隆化工新材料有限公司 | Method for preparing chlorinated polyethylene in acid medium |
| CN107200943A (en) * | 2017-07-24 | 2017-09-26 | 河北泰纳新材料科技有限公司 | A kind of preparation method of haloflex |
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Denomination of invention: A production process for chlorinated polyethylene Effective date of registration: 20231018 Granted publication date: 20201208 Pledgee: Agricultural Bank of China Limited Tiandong County Sub branch Pledgor: Guangxi Tiandong Jingui Technology Co.,Ltd. Registration number: Y2023980061655 |