CN112871112A - Equipment for preparing polyvinyl chloride by continuous gas-solid phase method - Google Patents
Equipment for preparing polyvinyl chloride by continuous gas-solid phase method Download PDFInfo
- Publication number
- CN112871112A CN112871112A CN202110029265.4A CN202110029265A CN112871112A CN 112871112 A CN112871112 A CN 112871112A CN 202110029265 A CN202110029265 A CN 202110029265A CN 112871112 A CN112871112 A CN 112871112A
- Authority
- CN
- China
- Prior art keywords
- block
- filter screen
- polyvinyl chloride
- liquid discharge
- solid phase
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J19/18—Stationary reactors having moving elements inside
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D33/00—Filters with filtering elements which move during the filtering operation
- B01D33/01—Filters with filtering elements which move during the filtering operation with translationally moving filtering elements, e.g. pistons
- B01D33/03—Filters with filtering elements which move during the filtering operation with translationally moving filtering elements, e.g. pistons with vibrating filter elements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J19/0053—Details of the reactor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J19/0053—Details of the reactor
- B01J19/0066—Stirrers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J4/00—Feed or outlet devices; Feed or outlet control devices
- B01J4/001—Feed or outlet devices as such, e.g. feeding tubes
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L27/00—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers
- C08L27/02—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers not modified by chemical after-treatment
- C08L27/04—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Compositions of derivatives of such polymers not modified by chemical after-treatment containing chlorine atoms
- C08L27/06—Homopolymers or copolymers of vinyl chloride
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Physical Or Chemical Processes And Apparatus (AREA)
Abstract
The invention discloses a device for preparing polyvinyl chloride by a continuous gas-solid phase method, which structurally comprises a kettle body, an air inlet pipe, a reagent pipe and a motor, wherein the air inlet pipe penetrates through the front surface of the middle upper part of the kettle body, the reagent pipe is vertically fixed at the top of the kettle body, heavy particles are accumulated at the top of a filter screen due to the fact that the heavy particles pass through a liquid discharge pipe in advance when liquid is discharged, the heavy particles move upwards under the driving force of the liquid through a push rod of a pushing mechanism, a swinging block pushes and vibrates the filter screen, generated substances accumulated at the top of the filter screen are pushed to float upwards, the accumulation of the heavy particles at the top of the filter screen is reduced, the liquid discharge is blocked, the liquid discharge speed can be accelerated, the liquid discharge speed in a stacking cavity is slow, a drainage groove is formed in a limiting block, the liquid discharge in the stacking cavity is facilitated, and the continuous, can make the push rod constantly reciprocate, be favorable to the push rod to push away vibrations on with the filter screen.
Description
Technical Field
The invention belongs to the field of polyvinyl chloride, and particularly relates to equipment for preparing polyvinyl chloride by a continuous gas-solid phase method.
Background
Preparing polyvinyl chloride by adopting a reaction kettle as reaction equipment through a continuous gas-solid phase method, introducing a polyethylene monomer and an initiator into a reaction cavity of the reaction kettle, driving a stirring rod by a motor to mix raw materials and accelerate reaction to form polyvinyl chloride particles, discharging the initiator in the reaction kettle to a liquid discharge pipe at the bottom of a kettle body after the preparation of the polyvinyl chloride is finished, and filtering the formed polyvinyl chloride particles by a filter screen arranged in the liquid discharge pipe; when preparing polyvinyl chloride in a reaction kettle in the prior art, the polyvinyl chloride particles formed by polymerization have different sizes, the particles with light mass float on the liquid surface, the particles with heavy mass are deposited at the bottom of the kettle body, and when liquid is discharged, the particles with heavy mass pass through a liquid discharge pipe in advance, so that the particles with heavy mass are accumulated at the top of a filter screen, the liquid discharge is blocked, and the liquid discharge speed is reduced.
Disclosure of Invention
In order to solve the problems that when polyvinyl chloride is prepared in a reaction kettle by the technology, polyvinyl chloride particles formed by polymerization reaction have different sizes, light weight floats on the liquid surface, heavy weight is deposited at the bottom of the kettle body, and when liquid is discharged, the heavy weight particles pass through a liquid discharge pipe in advance, so that the heavy weight particles are accumulated at the top of a filter screen, the liquid discharge is blocked, and the liquid discharge speed is reduced, the invention provides equipment for preparing polyvinyl chloride by a continuous gas-solid phase method.
In order to achieve the purpose, the invention is realized by the following technical scheme: the utility model provides an equipment of continuous gas solid phase method preparation polyvinyl chloride, its structure includes the cauldron body, intake pipe, reagent pipe, motor, the intake pipe runs through the cauldron body well upper portion openly, reagent pipe vertical fixation is at cauldron body top, the motor is installed perpendicularly at cauldron body top central point and is put.
The cauldron body is equipped with reaction chamber, puddler, fluid-discharge tube, filter screen, pushing mechanism, the reaction chamber is established at the internal portion of cauldron, the puddler is installed at reaction intracavity middle part perpendicularly, the fluid-discharge tube is fixed at cauldron body bottom surface middle part, the filter screen cover is at the top in the fluid-discharge tube, pushing mechanism fixes at the fluid-discharge tube inner wall, and is located the filter screen below.
As a further improvement of the invention, the pushing mechanism is provided with three push rods, a buckle, an accumulation cavity, a limiting block, a push ball and a reset block, the push rods are connected and installed at the top of the pushing mechanism through the pushing mechanism, the accumulation cavity is located in the pushing mechanism, the limiting block is embedded and fixed at the bottom of the right end of the accumulation cavity, the push ball is arranged at the bottom of the accumulation cavity, the reset block is horizontally fixed on the inner wall of the left side of the accumulation cavity and is movably matched with the push ball, and the middle upper position of the right end of the pushing mechanism is smooth.
As a further improvement of the invention, the push rod is provided with a support rod, a swinging block, a connecting shaft and two reset strips, wherein the support rod is positioned below the push rod, the swinging block is connected and installed at the top end of the support rod through the connecting shaft, the reset strips are connected between the bottom surface of the swinging block and the side surface of the support rod, and the two reset strips are symmetrically distributed.
As a further improvement of the invention, the swing block is provided with an opening, an inner groove, elastic blocks, elastic balls and convex blocks, the opening penetrates through the side surface of the middle lower part of the swing block, the inner groove is positioned in the middle part of the swing block, the elastic blocks are fixed in the bottom end of the inner groove, the elastic balls are arranged in the inner groove and movably matched with the elastic blocks, the convex blocks and the top part of the swing block are connected into a whole, and the number of the openings is four, and the openings are symmetrically distributed.
As a further improvement of the drainage device, the limiting block is provided with three drainage grooves, a clamping block, a connecting shaft and swinging rods, the drainage grooves penetrate through the surfaces of the two sides of the limiting block, the clamping block and the bottom in the drainage grooves are connected into a whole, the swinging rods are connected to the center of the top in the drainage grooves through the connecting shaft, and the number of the drainage grooves is three.
As a further improvement of the invention, the swing rod is provided with a telescopic rod, a connecting plate and a push block, the telescopic rod is positioned above the swing rod, the connecting plate is fixed at the bottom end of the telescopic rod, the push block and the bottom surface of the connecting plate are of an integrated structure, and the two side surfaces of the middle-lower position of the telescopic rod are uneven surfaces.
As a further improvement of the invention, the pushing block is provided with a supporting plate and a clearing block, the supporting plate is positioned above the pushing block, the clearing block is fixed on the bottom surface of the supporting plate, and the clearing block is made of a metal brush material.
Advantageous effects
Compared with the prior art, the invention has the following beneficial effects:
1. because when discharging liquid, the granule that the quality is heavy leads to the fluid-discharge tube to pass through in advance, leads to the granule that the quality is heavy to pile up at the filter screen top, and the push rod through pushing mechanism receives the driving force of liquid to move up, and the oscillating piece pushes away vibrations on with the filter screen, is favorable to piling up the generation material at the filter screen top and receives the thrust come-up, and the granule that the reduction quality is heavy is piled up at the filter screen top, and causes the liquid discharge to receive and block, can accelerate the discharge velocity of liquid.
2. Because the liquid discharge speed who piles up in the chamber is slow, is equipped with the drainage groove through the stopper, is favorable to piling up the liquid discharge in the chamber, is favorable to piling up the liquid in the chamber and constantly increasing and reducing, can make the push rod constantly reciprocate, is favorable to the push rod to push away vibrations on with the filter screen.
Drawings
FIG. 1 is a schematic structural diagram of an apparatus for preparing polyvinyl chloride by a continuous gas-solid phase method according to the present invention.
FIG. 2 is a schematic structural view of a front section of a kettle according to the present invention.
Fig. 3 is a schematic structural diagram of a front view section of a pushing mechanism according to the present invention.
Fig. 4 is a front view of a push rod according to the present invention.
FIG. 5 is a front sectional view of a swinging block according to the present invention.
Fig. 6 is a schematic structural diagram of a front view section of a limiting block according to the present invention.
FIG. 7 is a front view of a swing lever according to the present invention.
Fig. 8 is a schematic structural diagram of a push block in front view.
In the figure: the device comprises a kettle body-1, an air inlet pipe-2, a reagent pipe-3, a motor-4, a reaction cavity-11, a stirring rod-12, a liquid discharge pipe-13, a filter screen-14, a pushing mechanism-15, a push rod-a 1, a buckle-a 2, a stacking cavity-a 3, a limiting block-a 4, a push ball-a 5, a reset block-a 6, a supporting rod-s 1, a swing block-s 2, a connecting shaft-s 3, a reset bar-s 4, an opening-d 1, an inner groove-d 2, a spring block-d 3, a spring ball-d 4, a bump-d 5, a drainage groove-e 1, a clamping block-e 2, a connecting shaft-e 3, a swing rod-e 4, a telescopic rod-r 1, a connecting plate-r 2, a push block-r 3, a supporting plate-t 1 and a cleaning block-t 2.
Detailed Description
The invention is further described below with reference to the accompanying drawings:
example 1:
as shown in figures 1 to 5:
the invention provides equipment for preparing polyvinyl chloride by a continuous gas-solid phase method, which structurally comprises a kettle body 1, an air inlet pipe 2, a reagent pipe 3 and a motor 4, wherein the air inlet pipe 2 penetrates through the front surface of the middle upper part of the kettle body 1, the reagent pipe 3 is vertically fixed on the top of the kettle body 1, and the motor 4 is vertically arranged at the center of the top of the kettle body 1.
The pushing mechanism 15 is provided with a push rod a1, a buckle a2, an accumulation cavity a3, a limiting block a4, a pushing ball a5 and a reset block a6, the push rod a1 is connected and mounted at the top of the pushing mechanism 15 through the pushing mechanism 15, the accumulation cavity a3 is located inside the pushing mechanism 15, the limiting block a4 is embedded at the bottom of the right end of the accumulation cavity a3, the pushing ball a5 is arranged at the bottom inside the accumulation cavity a3, the reset block a6 is horizontally fixed on the inner wall of the left side of the accumulation cavity a3 and is movably matched with the pushing ball a5, three push rods a1 are arranged, the contact area between the push rod a1 and the bottom surface of the filter screen 14 can be increased, the pushing force on the filter screen 14 is increased, the vibration force on the filter screen 14 is increased, the middle-upper position of the pushing mechanism 15 is smooth, the smooth state is favorable for being communicated with the accumulation cavity a 3.
Wherein, push rod a1 is equipped with branch s1, swing piece s2, links up axle s3, resets strip s4, branch s1 is located push rod a1 below, swing piece s2 is installed on branch s1 top through linking up axle s3 linking, it connects between swing piece s2 bottom surface and branch s1 side to reset strip s4, it is equipped with two to reset strip s4, is the symmetric distribution, can make swing piece s2 atress even, and resets strip s4 and constantly enlarge deformation and produce thrust, is favorable to accelerating swing piece s 2's swing speed.
The swinging block s2 is provided with an opening d1, an inner groove d2, an elastic block d3, an elastic ball d4 and a bump d5, the opening d1 penetrates through the side face of the middle lower part of the swinging block s2, the inner groove d2 is located in the middle of the inner part of the swinging block s2, the elastic block d3 is fixed inside the bottom end of the inner groove d2, the elastic ball d4 is arranged inside the inner groove d2 and movably matched with the elastic block d3, the bump d5 is connected with the top of the swinging block s2 into a whole, the number of the openings d1 is four, the openings are symmetrically distributed, the two side surfaces of the swinging block s2 are uneven surfaces, the stress area of the swinging block s2 can be increased, and swinging of the swinging block s2 under the pushing force of liquid is accelerated.
The specific use mode and function of the embodiment are as follows:
in the invention, a reaction substance to be prepared is introduced into a reaction cavity 11 of a kettle body 1, a reagent and air flow are introduced through a reagent pipe 3 and an air inlet pipe 2 respectively, a motor 4 drives a stirring rod 12 to uniformly stir and react the substance in the reaction cavity, liquid in the reaction cavity 11 is discharged through a liquid discharge pipe 13 after the reaction is finished, the generated substance is filtered through a filter screen 14, when the liquid is discharged along the liquid discharge pipe 13, the liquid enters an accumulation cavity a3 along the right end of a pushing mechanism 15, a push rod a1 is pushed up by taking a buckle a2 as a fulcrum along with the increase of the liquid pushing force in the accumulation cavity a3, a support rod s1 pushes a swinging block s2 to move by the pushing force of the liquid, liquid is introduced through openings d1 at two sides of the swinging block s2, so that the swinging block s2 swings by the pushing force of the liquid by taking an engagement shaft s3 and a support rod s1 as the fulcrum, a reset strip s4 is limited, an elastic ball d4 in the swinging block s2 is movably matched with an inner groove, the thrust of the swing block s2 is increased, when the swing block s2 swings, the filter screen 14 is pushed to vibrate upwards through the bump d5, generated substances accumulated on the top of the filter screen 14 float upwards, the liquid is filtered and discharged along the filter screen 14, the push ball a5 in the accumulation cavity a3 moves in the accumulation cavity a3 in a movable fit mode with the reset block a6, the push ball a5 pushes the liquid in the accumulation cavity a3 to the right end of the pushing mechanism 15 to be discharged, the thrust of the liquid in the accumulation cavity a3 is reduced, the push rod a1 moves upwards and downwards, the push rod a1 of the pushing mechanism 15 moves upwards under the thrust of the liquid, the swing block s2 pushes the filter screen 14 upwards to vibrate, the generated substances accumulated on the top of the filter screen 14 are favorably floated by the thrust, the particles with reduced mass are accumulated on the top of the filter screen 14, the liquid discharge is blocked, and the liquid discharge speed can be increased.
Example 2:
as shown in fig. 6 to 8:
the limiting block a4 is provided with a drainage groove e1, a clamping block e2, a connecting shaft e3 and a swinging rod e4, the drainage groove e1 penetrates through the surfaces of two sides of the limiting block a4, the clamping block e2 and the bottom of the drainage groove e1 are connected into a whole, the swinging rod e4 is connected to the center of the top of the drainage groove e1 through the connecting shaft e3, and the number of the drainage grooves e1 is three, so that the liquid in the accumulation cavity a3 can be accelerated to flow and be discharged along the drainage groove e 1.
The swing rod e4 is provided with a telescopic rod r1, a connecting plate r2 and a push block r3, the telescopic rod r1 is located above the swing rod e4, the connecting plate r2 is fixed at the bottom end of the telescopic rod r1, the push block r3 and the bottom surface of the connecting plate r2 are of an integrated structure, the two side surfaces of the middle-lower position of the telescopic rod r1 are uneven surfaces, the stress area of the two side surfaces of the telescopic rod r1 can be increased, and the telescopic rod r1 is accelerated to swing under the thrust of liquid.
The pushing block r3 is provided with a supporting plate t1 and a clearing block t2, the supporting plate t1 is located above the pushing block r3, the clearing block t2 is fixed on the bottom surface of the supporting plate t1, the clearing block t2 is made of a metal brush material, and therefore reaction substances staying at the bottom in the drainage groove e1 can be uniformly cleared away, and the drainage groove e1 is kept smooth.
The specific use mode and function of the embodiment are as follows:
in the invention, when the liquid in the accumulation cavity a3 is pushed by the push ball a5 to be discharged to the drainage groove e1 of the limit block a4 of the pushing mechanism 15, the swinging rod e4 in the drainage groove e1 swings to the right side by the pushing force of the liquid with the connecting shaft e3 as a fulcrum, so that the drainage groove e1 is unblocked, which is beneficial to discharging the liquid in the accumulation cavity a3, and the swinging rod e4 swings, the telescopic rod r1 pushes the connecting plate r2 to the bottom of the drainage groove e1, the material remained at the bottom of the drainage groove e1 is removed by the removing block t2 in the pushing block r3, when the pushing force of the liquid in the accumulation cavity a3 is reduced, the liquid in the liquid discharge pipe 13 pushes the swinging rod e4 to reset, and the swinging rod e4 is movably matched with the block e2 for limiting, so as to block the liquid and reduce the backflow, the drainage groove e1 is arranged by the limit block a4, which is beneficial to discharge the liquid in the accumulation cavity a3, which is increased and the accumulated liquid 3 and reduced, the push rod a1 can be enabled to move up and down continuously, and the push rod a1 is beneficial to pushing up the filter screen 14 to vibrate.
The technical solutions of the present invention or similar technical solutions designed by those skilled in the art based on the teachings of the technical solutions of the present invention are all within the scope of the present invention to achieve the above technical effects.
Claims (7)
1. The utility model provides an equipment of continuous gas solid phase method preparation polyvinyl chloride, its structure includes the cauldron body (1), intake pipe (2), reagent pipe (3), motor (4), intake pipe (2) run through the cauldron body (1) well upper portion openly, reagent pipe (3) vertical fixation is at cauldron body (1) top, motor (4) are installed perpendicularly and are put its characterized in that at cauldron body (1) top central point:
the reactor body (1) is provided with a reaction cavity (11), a stirring rod (12), a liquid discharge pipe (13), a filter screen (14) and a pushing mechanism (15), the reaction cavity (11) is arranged inside the reactor body (1), the stirring rod (12) is vertically arranged in the reaction cavity (11) at the middle part, the liquid discharge pipe (13) is fixed in the middle part of the bottom surface of the reactor body (1), the filter screen (14) is sleeved at the inner top part of the liquid discharge pipe (13), and the pushing mechanism (15) is fixed on the inner wall of the liquid discharge pipe (13) and is located below the filter screen (14).
2. The apparatus for preparing polyvinyl chloride according to the continuous gas-solid phase process of claim 1, wherein: pushing mechanism (15) are equipped with push rod (a1), buckle (a2), pile up chamber (a3), stopper (a4), push ball (a5), reset block (a6), push rod (a1) are installed at pushing mechanism (15) top through pushing mechanism (15) linking, it is located pushing mechanism (15) inside to pile up chamber (a3), stopper (a4) are inlayed and are fixed and are piling up chamber (a3) right-hand member bottom, push ball (a5) set up and pile up chamber (a3) bottom in, reset block (a6) level is fixed and is piled up chamber (a3) left side inner wall, and with push ball (a5) clearance fit.
3. The apparatus for preparing polyvinyl chloride according to the continuous gas-solid phase process of claim 2, wherein: push rod (a1) are equipped with branch (s1), swing piece (s2), link up axle (s3), reset strip (s4), branch (s1) are located push rod (a1) below, swing piece (s2) are installed on branch (s1) top through linking up axle (s3) linking, reset strip (s4) are connected between swing piece (s2) bottom surface and branch (s1) side.
4. The apparatus for preparing polyvinyl chloride according to the continuous gas-solid phase process of claim 3, wherein: the swing block (s2) is provided with an opening (d1), an inner groove (d2), a spring block (d3), a spring ball (d4) and a bump (d5), the opening (d1) penetrates through the side face of the middle lower portion of the swing block (s2), the inner groove (d2) is located in the middle of the inner portion of the swing block (s2), the spring block (d3) is fixed inside the bottom end of the inner groove (d2), the spring ball (d4) is arranged inside the inner groove (d2) and movably matched with the spring block (d3), and the bump (d5) and the top of the swing block (s2) are connected into a whole.
5. The apparatus for preparing polyvinyl chloride according to the continuous gas-solid phase process of claim 2, wherein: the limiting block (a4) is provided with a drainage groove (e1), a clamping block (e2), a connecting shaft (e3) and a swinging rod (e4), the drainage groove (e1) penetrates through the surfaces of the two sides of the limiting block (a4), the clamping block (e2) is connected with the bottom in the drainage groove (e1) into a whole, and the swinging rod (e4) is connected to the center of the top in the drainage groove (e1) through the connecting shaft (e 3).
6. The apparatus for preparing polyvinyl chloride according to the continuous gas-solid phase process of claim 5, wherein: swinging arms (e4) are equipped with telescopic link (r1), connecting plate (r2), ejector pad (r3), telescopic link (r1) are located swinging arms (e4) top, connecting plate (r2) are fixed in telescopic link (r1) bottom, ejector pad (r3) and connecting plate (r2) bottom surface are integrated structure.
7. The apparatus for preparing polyvinyl chloride according to the continuous gas-solid phase process of claim 6, wherein: ejector pad (r3) are equipped with backup pad (t1), clear away piece (t2), backup pad (t1) are located ejector pad (r3) top, clear away piece (t2) and fix in backup pad (t1) bottom surface.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202110029265.4A CN112871112A (en) | 2021-01-11 | 2021-01-11 | Equipment for preparing polyvinyl chloride by continuous gas-solid phase method |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202110029265.4A CN112871112A (en) | 2021-01-11 | 2021-01-11 | Equipment for preparing polyvinyl chloride by continuous gas-solid phase method |
Publications (1)
Publication Number | Publication Date |
---|---|
CN112871112A true CN112871112A (en) | 2021-06-01 |
Family
ID=76047731
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN202110029265.4A Withdrawn CN112871112A (en) | 2021-01-11 | 2021-01-11 | Equipment for preparing polyvinyl chloride by continuous gas-solid phase method |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN112871112A (en) |
-
2021
- 2021-01-11 CN CN202110029265.4A patent/CN112871112A/en not_active Withdrawn
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN113368753B (en) | Composite fiber material preparation machine with mosquito repellent function | |
CN112551610A (en) | Ecological treatment facility of river course sewage | |
CN209771539U (en) | Pneumatic pulse backwashing sewage treatment equipment | |
CN110975393A (en) | Solid-liquid separation equipment | |
CN112295330A (en) | Biological filtration waste gas equipment | |
CN112942533A (en) | Anti-blocking type drainage equipment for municipal road | |
CN112871112A (en) | Equipment for preparing polyvinyl chloride by continuous gas-solid phase method | |
CN115647285A (en) | Waste sand grinding treatment device | |
CN113814159A (en) | Building rubbish regeneration miropowder separation preparation facilities | |
CN112973249B (en) | Drainage equipment with prevent stifled function | |
CN116392867A (en) | Magnetic separation and diversion system capable of reducing washing and selecting medium consumption | |
CN113511743B (en) | Industrial sewage treatment equipment | |
CN113082812B (en) | Sewage treatment environment-friendly device for construction of construction site and using method thereof | |
CN112279317A (en) | Miniature membrane separation test equipment | |
CN114433567A (en) | Dust collecting equipment for repairing instruments and meters | |
CN115477452A (en) | Hydraulic engineering silt treatment device and application method thereof | |
CN112915906A (en) | Oil stain cleaning agent processing equipment | |
CN112870924A (en) | Organic gas membrane separation equipment for laboratory | |
CN113029277A (en) | Farmland water level monitoring equipment with water utilization coefficient | |
US4111616A (en) | Flexible wall pump | |
CN112959507A (en) | Mining concrete mixing dust collector based on multistage vibration | |
CN218608165U (en) | Concrete waste water recycle equipment | |
CN115520928B (en) | High-flux air floatation equipment for treating micro-polluted water | |
CN116440565B (en) | Full-automatic energy-saving recovery device for condensate water of still kettle | |
CN115724524B (en) | Environment-friendly sewage treatment system |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PB01 | Publication | ||
PB01 | Publication | ||
SE01 | Entry into force of request for substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
TA01 | Transfer of patent application right | ||
TA01 | Transfer of patent application right |
Effective date of registration: 20220128 Address after: No.39 baiziting, Xuanwu District, Nanjing City, Jiangsu Province, 210000 Applicant after: Xie Chengzhong Address before: No.39 baiziting, Xuanwu District, Nanjing City, Jiangsu Province, 210000 Applicant before: Nanjing Heihong Trading Co.,Ltd. |
|
WW01 | Invention patent application withdrawn after publication | ||
WW01 | Invention patent application withdrawn after publication |
Application publication date: 20210601 |