阅读说明：本技术 一种氯化专用料聚乙烯蜡制备方法及生产装置 (Preparation method and production device of polyethylene wax special for chlorination ) 是由 杨太山 于 2021-08-20 设计创作，主要内容包括：本发明公开了一种氯化专用料聚乙烯蜡制备生产装置,涉及微电子加工技术领域。本发明包括混料搅拌机、冷却釜和降温雾化成品室,所述混料搅拌机的输出端连接有连接导管,所述连接导管的下方设置有螺杆减速机主体,所述冷却釜设置于所述螺杆减速机主体的顶端,所述冷却釜的右侧设置有油泵主体,所述降温雾化成品室的顶端安装有离心雾化头。本发明设备经现有设备改进,简单可行,热解更加均匀安全,成品无杂质,外观均规整,软化点温度浮动小,目数均匀,分子量稳定,可以得到不同粘度高氯化聚乙烯氯化专用料聚乙烯蜡粉,无需通过液氮低温粉碎,或气流粉碎等昂贵设备,工艺极易控制,生产连贯效率极高,经济效益十分显著。(The invention discloses a preparation and production device of polyethylene wax which is a special material for chlorination, and relates to the technical field of microelectronic processing. The cooling device comprises a mixing stirrer, a cooling kettle and a cooling atomization finished product chamber, wherein the output end of the mixing stirrer is connected with a connecting guide pipe, a screw speed reducer main body is arranged below the connecting guide pipe, the cooling kettle is arranged at the top end of the screw speed reducer main body, an oil pump main body is arranged on the right side of the cooling kettle, and a centrifugal atomization head is arranged at the top end of the cooling atomization finished product chamber. The equipment is improved by the existing equipment, is simple and feasible, has more uniform and safer pyrolysis, has no impurities in the finished product, regular appearance, small temperature fluctuation of a softening point, uniform mesh number and stable molecular weight, can obtain the polyethylene wax powder which is a special material for chlorinating the high chlorinated polyethylene with different viscosities, does not need expensive equipment such as liquid nitrogen low-temperature crushing or airflow crushing, is extremely easy to control the process, has extremely high production continuity efficiency and has very remarkable economic benefit.)

1. The utility model provides a chloridize special material polyethylene wax preparation apparatus for producing which characterized in that: including compounding mixer (1), cooling cauldron (8) and cooling atomization finished product room (11), the output of compounding mixer (1) is connected with connecting pipe (14), the below of connecting pipe (14) is provided with screw reducer main part (2), cooling cauldron (8) set up in the top of screw reducer main part (2), the right side of cooling cauldron (8) is provided with oil pump main part (9), cooling atomization finished product room (11) set up in the right side of oil pump main part (9), centrifugal atomization head (10) are installed on the top of cooling atomization finished product room (11).

2. The polyethylene wax preparation production device for the special material for chlorination according to claim 1, wherein a feed port (3) is arranged at the top end of the screw reducer main body (2), the feed port (3) forms a communicating structure with the mixing stirrer (1) through the connecting conduit (14), a first-stage heating jacket (4) is arranged in front of the screw reducer main body (2), a second-stage heating jacket (5) is arranged on the surface of the first-stage heating jacket (4), a third-stage heating jacket (6) is arranged on one side of the second-stage heating jacket (5), and a fourth-stage heating jacket (7) is arranged on one side of the third-stage heating jacket (6).

3. The production device for preparing polyethylene wax as the special material for chlorination according to claim 1, wherein the polyethylene resin is low-pressure high-density polyethylene or high-pressure low-density polyethylene.

4. The production device for preparing polyethylene wax as the special material for chlorination according to claim 2, wherein the first-stage heating jacket (4) is divided into four sections, and the four sections are heated and pyrolyzed in a grading manner by using ceramic.

5. The production device for preparing polyethylene wax as a special material for chlorination according to claim 1, wherein a carbon removal oil receiving tank (13) is connected above the cooling kettle (8), and an air compressor unit (12) is arranged on the right side of the carbon removal oil receiving tank (13).

6. The production device for preparing polyethylene wax serving as a special chlorination material according to claim 1, wherein the oil pump main body (9) adopts a high-temperature oil-resistant sealing pump.

7. The production device for preparing polyethylene wax as the special material for chlorination according to claim 1, wherein two sides of the centrifugal atomizing head (10) are provided with a wall body with a built-in water wall for water flow cooling, and a hot air outlet capable of vibrating and filtering is added at the middle part and the bottom part.

8. The production device for preparing polyethylene wax as the special material for chlorination according to claim 1, wherein the centrifugal unit at the top of the centrifugal atomizing head (10) is based on the principle that the centrifugal head is a disc rotating porous and is regulated by a motor, and heating and heat-insulating coils are wound on all pipelines from the oil pump main body (9) to the top end of the centrifugal atomizing head (10).

9. The preparation production device of the special polyethylene wax for chlorination according to claim 1, which provides a preparation method of the special polyethylene wax for chlorination, and is characterized by comprising the following steps:

s1, adding specific polyethylene plastic particles into the mixing stirrer (1), adding the specific polyethylene plastic particles into the first-stage heating jacket (4) below, then carrying out high-temperature pyrolysis step by step in a segmented manner, and matching with a pyrolysis catalyst, wherein the pyrolysis catalyst is at least one of zinc oxide or organic acid anhydride, and the using amount of the pyrolysis catalyst is 0.5-2% of the mass of the polyethylene resin;

s2, cooling the polyethylene wax by a sealed vacuum cooling kettle (8) with an interlayer for cooling after pyrolysis, and pumping the liquid polyethylene wax to the top of a cooling and atomizing finished product chamber (11) by a high-temperature oil pump main body (9) connected with an outlet;

s3, the flaky raw material is supported by the centrifugal atomizing head (10) through centrifugation and temperature reduction operation, and the fine powder finished product is stored in the temperature reduction atomizing finished product chamber (11).

Technical Field

The invention relates to the technical field of polyethylene wax powder, in particular to a preparation method and a production device of polyethylene wax which is a special material for chlorination.

Background

The polyethylene wax is polyethylene with low relative molecular weight, also called high molecular wax, short polyethylene wax, according to the molecular weight, the characteristics are different, the pure polyethylene wax is divided into polymerization type polyethylene wax and cracking type polyethylene wax according to the difference of the manufacturing method, the appearance has block, large flake, bead and irregular micro powder according to different purposes, and the micro powder is needed as a special material for chlorinating the high chlorinated polyethylene.

At present, the common micro-powder polyethylene wax forming process is mainly characterized in that polyethylene and a catalyst are premixed uniformly in a reaction kettle, and subjected to high-temperature pyrolysis, cooling, post-treatment and the like, and the polyethylene is directly put into a secondary heating screw extruder and then sprayed by a tablet press, various crushers or a high tower, and the process has the defects that: the appearance of the finished polyethylene wax is flaky, irregular, beaded or spherical micro powder, and the finished polyethylene wax cannot be applied to a high-performance high-quality high-chlorinated polyethylene chlorination special material.

Disclosure of Invention

The invention aims to provide a preparation method and a production device of polyethylene wax which is a special material for chlorination, and aims to solve the existing problems: the appearance of the finished polyethylene wax is flaky, irregular, beaded or spherical micro powder, and the finished polyethylene wax cannot be applied to a high-performance high-quality high-chlorinated polyethylene chlorination special material.

In order to solve the technical problems, the invention is realized by the following technical scheme:

the invention relates to a preparation method and a production device of polyethylene wax serving as a special material for chlorination, which comprises a material mixing stirrer, a cooling kettle and a cooling atomization finished product chamber, wherein the output end of the material mixing stirrer is connected with a connecting guide pipe, a screw speed reducer main body is arranged below the connecting guide pipe, the cooling kettle is arranged at the top end of the screw speed reducer main body, an oil pump main body is arranged on the right side of the cooling kettle, the cooling atomization finished product chamber is arranged on the right side of the oil pump main body, and a centrifugal atomization head is arranged at the top end of the cooling atomization finished product chamber.

Further, the top of screw reducer main part is provided with the dog-house, the dog-house passes through connecting conduit with constitute the connectivity structure between the compounding mixer, the place ahead of screw reducer main part is provided with the first order heating jacket, the surface of first order heating jacket is provided with the second level heating jacket, one side of second level heating jacket is provided with the third level heating jacket, one side of third level heating jacket is provided with the fourth level heating jacket.

Further, the polyethylene resin is low-pressure high-density polyethylene or high-pressure low-density polyethylene, and the melt index is 2-8g/10 min.

Furthermore, the first-stage heating jacket is divided into four sections, and the four sections are subjected to ceramic heating and graded pyrolysis.

Further, a carbon removal oil recovery tank is connected above the cooling kettle, and an air compressor unit is arranged on the right side of the carbon removal oil recovery tank.

Further, the oil pump main body adopts a high-temperature oil-resistant sealing pump.

Furthermore, two sides of the centrifugal atomizing head are provided with built-in water wall water flow cooling walls, and hot air outlets capable of vibrating and filtering are additionally arranged in the middle and at the bottom of the centrifugal atomizing head.

Furthermore, the principle of the top centrifugal unit of the centrifugal atomizing head is that the centrifugal head rotates as a disc, a plurality of holes are formed, the speed of the holes is regulated by a motor, and heating and heat-insulating coils are wound on all pipelines from the main body of the oil pump to the top end of the centrifugal atomizing head.

A preparation method of polyethylene wax which is a special material for chlorination comprises the following steps:

s1, adding specific polyethylene plastic particles into a mixing stirrer, adding the mixture into a first-stage heating jacket below the stirring stirrer, and then carrying out high-temperature pyrolysis step by step in a segmented manner, wherein the pyrolysis catalyst is matched with a pyrolysis catalyst, and the pyrolysis catalyst is at least one of zinc oxide or organic acid anhydride, and the using amount of the pyrolysis catalyst is 0.5-2% of the mass of the polyethylene resin;

s2, cooling the polyethylene wax through a sealed vacuum cooling kettle with an interlayer for cooling after pyrolysis, and pumping the liquid polyethylene wax to the top of a cooling and atomizing finished product chamber by connecting an outlet with a high-temperature oil pump main body;

and S3, supporting the micro-powder finished product by the sheet raw material through centrifugation and temperature reduction operation through the centrifugal atomizing head, and storing the micro-powder finished product in the temperature reduction atomizing finished product chamber.

1. The equipment is improved by the existing equipment, is simple and feasible, has more uniform and safer pyrolysis, has no impurities in finished products, regular appearance, small temperature fluctuation of softening points, uniform mesh number and stable molecular weight;

2. the invention can obtain the polyethylene wax powder which is a special material for chlorinating the high chlorinated polyethylene with different viscosities, does not need expensive equipment such as liquid nitrogen low-temperature crushing or airflow crushing, has a low yield process, is more convenient for a polyethylene wax production device for industrial application of a chlorination process, is extremely easy to control the process, has extremely high production continuity efficiency and has very obvious economic benefit.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a schematic structural diagram of a preparation method and a production device of polyethylene wax which is a special material for chlorination, in accordance with the present invention;

FIG. 2 is a top view of a cooling kettle of the method and apparatus for preparing polyethylene wax as a special material for chlorination;

FIG. 3 is a top view of a mixing stirrer of the method and apparatus for preparing polyethylene wax as a special material for chlorination.

In the drawings, the components represented by the respective reference numerals are listed below:

1. a mixing stirrer; 2. a screw reducer body; 3. a feeding port; 4. a first stage heating jacket; 5. a second stage heating jacket; 6. a third stage heating jacket; 7. a fourth stage heating jacket; 8. cooling the kettle; 9. an oil pump main body; 10. a centrifugal atomizing head; 11. cooling and atomizing a finished product chamber; 12. an air compressor unit; 13. a carbon removal oil recovery tank; 14. connecting the conduit.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-3, the invention relates to a preparation method and a production device of polyethylene wax as a special material for chlorination, which comprises a mixing stirrer 1, a cooling kettle 8 and a cooling atomization finished product chamber 11, wherein the output end of the mixing stirrer 1 is connected with a connecting conduit 14, a screw speed reducer main body 2 is arranged below the connecting conduit 14, the cooling kettle 8 is arranged at the top end of the screw speed reducer main body 2, an oil pump main body 9 is arranged at the right side of the cooling kettle 8, the cooling atomization finished product chamber 11 is arranged at the right side of the oil pump main body 9, and a centrifugal atomization head 10 is arranged at the top end of the cooling atomization finished product chamber 11.

Specifically, the top of screw reducer main part 2 is provided with dog-house 3, constitute the connectivity structure between dog-house 3 passes through connecting tube 14 and compounding mixer 1, the place ahead of screw reducer main part 2 is provided with first order heating jacket 4, the surface of first order heating jacket 4 is provided with second level heating jacket 5, one side of second level heating jacket 5 is provided with third level heating jacket 6, one side of third level heating jacket 6 is provided with fourth level heating jacket 7, polyethylene is low pressure high density polyethylene or high pressure low density polyethylene, and the melt index is 2-8g/10min, equipment is through current equipment improvement, it is simple feasible, the pyrolysis is more even safety, the finished product is impurity-free, the outward appearance is all regular, the softening point temperature floats for a short time, the mesh is even, molecular weight is stable.

Accurately, the first-stage heating jacket 4 is divided into four sections, and the four sections are subjected to ceramic heating and graded pyrolysis.

Further, the top of cooling kettle 8 is connected with carbon removal oil receiving tank 13, the right side of carbon removal oil receiving tank 13 is provided with air compressor unit 12, oil pump main part 9 adopts high temperature resistant oily canned pump, centrifugal atomization head 10 both sides are provided with the wall body of built-in waterwall rivers cooling, and increase vibrationally filterable's hot-blast gate in middle part and bottom, centrifugal atomization head 10's top centrifugal unit principle is that the centrifugal head rotates the porous through the motor speed governing for the disc, from oil pump main part 9 to centrifugal atomization head 10's top, winding heating insulation coil on all pipelines, whole device's heat-sinking capability is strong, make sustainable operating time longer, improve work efficiency.

A preparation method of polyethylene wax which is a special material for chlorination comprises the following steps:

s1, adding specific polyethylene plastic particles into the mixing stirrer 1, adding the specific polyethylene plastic particles into the lower first-stage heating jacket 4, then carrying out high-temperature pyrolysis step by step in a segmented manner, and matching with a pyrolysis catalyst, wherein the pyrolysis catalyst is at least one of zinc oxide or organic acid anhydride, and the using amount of the pyrolysis catalyst is 0.5-2% of the mass of the polyethylene resin;

s2, cooling the polyethylene wax through a sealed vacuum cooling kettle 8 with an interlayer for cooling after pyrolysis, and pumping the liquid polyethylene wax to the top of a cooling and atomizing finished product chamber 11 through a high-temperature oil pump main body 9 connected with an outlet;

s3, the raw material in sheet form is supported by the centrifugal atomizing head 10 through centrifugation and temperature reduction operations and stored in the interior of the temperature reduction atomizing product chamber 11.

One specific application of this embodiment is: when the device is used, firstly, the device is externally connected with a power supply, then raw materials are put into the mixing stirrer 1, stirring is carried out in the mixing stirrer 1, the stirred raw materials are discharged to the feeding port 3 through the connecting conduit 14 and flow into the first-stage heating sleeve 4, the whole screw extruder is divided into four heating levels, the stirred raw materials pass through the first-stage heating sleeve 4, the second-stage heating sleeve 5, the third-stage heating sleeve 6 and the fourth-stage heating sleeve 7 one by one through the driving of the screw speed reducer main body 2 and are finally discharged into the cooling kettle 8, cooling is carried out in the cooling kettle 8 after heating is finished, the materials in the cooling kettle 8 are led into the centrifugal atomizing head 10 through the pipe body through the driving of the oil pump main body 9, the water wall built-in water flow cooling wall bodies are arranged on two sides, and the hot air ports capable of vibrating, dedusting and filtering are additionally arranged at the middle part and the bottom part, the material after the atomization is discharged into the cooling atomization finished product chamber 11 for storage while the high-efficiency heat dissipation is realized.

In the description herein, references to the description of "one embodiment," "an example," "a specific example" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention. The invention is limited only by the claims and their full scope and equivalents.