WO2023197650A1 - Pva熟化机 - Google Patents

Pva熟化机 Download PDF

Info

Publication number
WO2023197650A1
WO2023197650A1 PCT/CN2022/139163 CN2022139163W WO2023197650A1 WO 2023197650 A1 WO2023197650 A1 WO 2023197650A1 CN 2022139163 W CN2022139163 W CN 2022139163W WO 2023197650 A1 WO2023197650 A1 WO 2023197650A1
Authority
WO
WIPO (PCT)
Prior art keywords
rotating shaft
sealing
pva
sealing sleeve
thermally conductive
Prior art date
Application number
PCT/CN2022/139163
Other languages
English (en)
French (fr)
Inventor
窦岩
赵旭
李鹏
马耀宏
杨少华
韩东钊
雷梦龙
谢晓玲
罗剑
Original Assignee
天华化工机械及自动化研究设计院有限公司
天华院(南京)智能制造有限公司
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 天华化工机械及自动化研究设计院有限公司, 天华院(南京)智能制造有限公司 filed Critical 天华化工机械及自动化研究设计院有限公司
Priority to EP22937279.2A priority Critical patent/EP4349472A1/en
Publication of WO2023197650A1 publication Critical patent/WO2023197650A1/zh

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
    • B01J19/20—Stationary reactors having moving elements inside in the form of helices, e.g. screw reactors
    • 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
    • B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J19/0053—Details of the reactor
    • B01J19/0073—Sealings
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working

Definitions

  • the invention relates to the field of aging equipment, and in particular to a PVA aging machine.
  • Polyvinyl alcohol referred to as PVA (polyvinyl alcohol). Since "vinyl alcohol” is easily isomerized into acetaldehyde, polyvinyl alcohol cannot be prepared through the polymerization of the theoretical monomer "vinyl alcohol”. It can only be prepared through the alcohol of polyvinyl acetate. It is prepared by decomposition or hydrolysis reaction, and polyvinyl alcohol made by alcoholysis method is easy to refine, has higher purity, and the performance of the main product is better. Therefore, alcoholysis method is usually used in industry to prepare polyvinyl alcohol.
  • the present invention provides a PVA curing machine.
  • the PVA curing machine provided by the present invention to re-process polyvinyl alcohol products prepared by existing alcoholysis settings, the preparation of polyvinyl alcohol of different specifications can be achieved.
  • the present invention provides the following solutions:
  • the invention provides a PVA curing machine, which includes: a thermally conductive shell, which is provided with a plurality of feeding ports for adding additives; one end of the thermally conductive shell is provided with a discharge port; a stirring and conveying mechanism, the stirring and conveying mechanism
  • the mechanism includes a rotating shaft and a spiral blade helically arranged on the rotating shaft along the length direction of the rotating shaft. Both ends of the rotating shaft respectively extend through the two ends of the heat-conducting shell.
  • the spiral blade is used for stirring and is arranged on the rotating shaft.
  • the material inside the heat-conducting shell is transported to the discharge port; a support is provided at both ends of the rotating shaft, and the two ends of the rotating shaft are rotatable respectively.
  • a power device the power device is connected to the rotating shaft to drive the rotating shaft to rotate;
  • a heat tracing mechanism the heat tracing mechanism is arranged on the heat conductive shell, and the heat tracing mechanism is The thermal mechanism is used to heat the thermally conductive shell and heat the material through the thermally conductive shell.
  • the discharge port is provided with an overflow baffle.
  • the PVA curing machine also includes a discharge mechanism.
  • the discharge mechanism includes a discharge plate and a connecting rod.
  • a discharge port is provided on the overflow baffle, and the connecting rod is connected to the discharge plate.
  • the discharge plate is used to open or block the discharge port.
  • the PVA curing machine also includes a handle, a positioning sleeve and a ferrule.
  • One end of the connecting rod is connected to the unloading plate, and the other end of the connecting rod extends through the thermally conductive shell.
  • the ferrule is is provided on the connecting rod, and the ferrule is fixed on the thermal conductive shell.
  • One end of the positioning sleeve passes through the ferrule and is positioned through the limiting structure.
  • the handle sleeve is disposed on the positioning sleeve.
  • the other end of the sleeve is external and is fixedly connected to the positioning sleeve.
  • the other end of the connecting rod passes through the positioning sleeve and is threadedly connected to the positioning sleeve.
  • the PVA curing machine further includes two sealing components, the two sealing components are symmetrically arranged at both ends of the thermally conductive shell, and both ends of the thermally conductive shell are provided with openings for the rotating shaft to pass through.
  • the two sealing components correspond to the two openings one by one, and the sealing components are used to seal the gap between the corresponding side walls of the openings and the rotating shaft.
  • the sealing assembly includes: a first sealing sleeve, the first sealing sleeve is disposed in the corresponding opening, the rotating shaft passes through the first sealing sleeve, and the first sealing sleeve
  • Two sealing tooth assemblies are provided on the inner peripheral wall along the axial direction of the first sealing sleeve.
  • the sealing tooth assembly includes a plurality of annular teeth arranged side by side along the axial direction of the first sealing sleeve.
  • a labyrinth cavity is formed between the annular teeth, the inside of the first sealing sleeve is connected with the discharge port, and the communication position between the first sealing sleeve and the discharge port is located at two of the between the sealing tooth components; a second sealing sleeve is provided at one end of the first sealing sleeve away from the heat-conducting housing and connected to the first sealing sleeve; the second sealing sleeve is sleeved on the rotating shaft, A packing seal cavity is provided on the inner peripheral wall of the second sealing sleeve.
  • a plurality of packing seal rings are arranged side by side in the packing seal cavity along the axial direction of the second sealing sleeve.
  • Each of the packing seal rings is sleeved.
  • a sealing groove is also provided on the inner peripheral wall of one end of the second sealing sleeve close to the first sealing sleeve, and a lip seal ring is provided in the sealing groove;
  • a distribution orifice ring and a plurality of the In the packing seal ring, the distribution orifice ring is provided between two adjacent packing seal rings, the distribution orifice ring is sleeved on the rotating shaft, and the distribution orifice ring is provided on the peripheral side wall
  • There are a plurality of air inlets, and both ends of the distribution orifice ring are respectively provided with a plurality of first air outlets arranged along the circumferential direction of the distribution orifice ring and a plurality of second air outlets arranged along the circumferential direction of the distribution orifice ring.
  • An air outlet hole corresponds to the first air outlet hole and the second air outlet hole, the air inlet hole is connected with the inert gas, and the air inlet hole is connected to the corresponding air outlet hole.
  • the first air outlet hole and the second air outlet hole are both connected.
  • the heat tracing mechanism is a heat tracing jacket, and a heat exchange medium is provided inside the heat tracing jacket.
  • the mixing and conveying mechanism further includes mixing rakes arranged sequentially along the axis of the rotating shaft.
  • the stirring rakes include a plurality of stirring blades evenly arranged along the circumferential direction of the rotating shaft, and each of the stirring blades is aligned with the rotating shaft. Fixed connection.
  • the rotating shaft includes a driving shaft and a driven shaft arranged coaxially.
  • One end of the driving shaft is drivingly connected to one end of the driven shaft, and the other end of the driving shaft is connected to the other end of the driven shaft.
  • One end extends through the two ends of the heat-conducting shell and is rotatably supported on the two supports respectively; the number of the power device and the mixing and conveying mechanism is two, and the two The mixing and conveying mechanisms are arranged side by side, and the two power devices are respectively used to drive the two rotating shafts to rotate.
  • the power device includes a motor, a reducer and a manual transmission connected in sequence, and the output end of the manual transmission is drivingly connected to the rotating shaft.
  • the PVA curing machine includes: a thermally conductive shell, which is provided with a feeding port for adding additives, and one end of the thermally conductive shell is provided with a discharge port; a stirring and conveying mechanism, which includes a rotating shaft and a spiral along the length of the rotating shaft. The spiral blades are arranged on the rotating shaft. Both ends of the rotating shaft extend through the two ends of the thermally conductive shell respectively.
  • the spiral blades are used to stir the materials arranged inside the thermally conductive shell and transport the materials to the discharge port;
  • the support and the rotating shaft There is a support at each end, and the two ends of the rotating shaft are rotatably supported on the two supports respectively;
  • the power device is connected to the rotating shaft to drive the rotating shaft to rotate;
  • the heat tracing mechanism is arranged on the heat conduction On the shell, the heat tracing mechanism is used to heat the thermally conductive shell and heat the material through the thermally conductive shell.
  • the existing alcoholysis equipment includes a belt alcoholysis machine, a pulverizer and a centrifugal dehydrator.
  • the belt alcoholysis machine and pulverizer are used to process a certain fixed specification of polyvinyl alcohol products, and the centrifugal dehydrator is used to process the processed polyethylene.
  • the alcohol product goes into dehydration and drying.
  • the PVA curing machine provided by the present invention is arranged after the pulverizer and before the centrifugal dehydrator.
  • the polyvinyl alcohol product processed by the belt alcoholysis machine and the pulverizer is transported to the curing machine provided by the present invention.
  • the aging machine After re-alcoholization in the aging machine, it is transported to the centrifugal dehydrator for dehydration and drying.
  • different additives can be added to the interior of the thermal conductive shell of the PVA curing machine provided by the present invention according to actual market demand, and thus the molar ratio of alkali added during alcoholysis, the concentration and moisture content of the vinyl acetate methanol solution can be adjusted.
  • the PVA aging machine provided by the present invention can be used to prepare polyvinyl alcohol products of various specifications.
  • Figure 1 is a front view of the PVA curing machine provided in the embodiment of the present invention.
  • FIG. 2 is a schematic diagram of the internal structure of the PVA curing machine provided in the embodiment of the present invention.
  • Figure 3 is a schematic structural diagram of the unloading mechanism of the PVA curing machine provided in the embodiment of the present invention.
  • Figure 4 is a schematic structural diagram of the sealing assembly of the PVA curing machine provided in the embodiment of the present invention.
  • Figure 5 is a schematic structural diagram of the mixing and conveying mechanism of the PVA curing machine provided in the embodiment of the present invention.
  • the object of the present invention is to provide a curing machine that can realize the preparation of polyvinyl alcohol products of various specifications.
  • the PVA curing machine 100 provided in this embodiment includes: a thermally conductive shell 1.
  • the thermally conductive shell 1 is provided with a feeding port 101 for adding additives.
  • One end of the thermally conductive shell 1 is provided with a discharge port; stirring and conveying Mechanism, the mixing and conveying mechanism includes a rotating shaft 2 and a spiral blade 3 spirally arranged on the rotating shaft 2 along the length direction of the rotating shaft 2.
  • the two ends of the rotating shaft 2 respectively extend through the two ends of the thermal conductive shell 1, and the spiral blade 3 is used for stirring.
  • the material inside the thermal conductive shell 1 is transported to the outlet support 5.
  • a support 5 is provided at both ends of the rotating shaft 2, and the two ends of the rotating shaft 2 are rotatably supported on the two supports 5.
  • the power device 6 the power device 6 is connected to the rotating shaft 2 to drive the rotating shaft 2 to rotate;
  • the heat tracing mechanism 7, the heat tracing mechanism 7 is arranged on the heat conductive shell 1, the heat tracing mechanism 7 is used to heat the heat conductive shell 1, and through the heat conduction Shell 1 heats the material.
  • the existing alcoholysis equipment includes a belt alcoholysis machine, a pulverizer and a centrifugal dehydrator.
  • the belt alcoholysis machine and pulverizer are used to process a certain fixed specification of polyvinyl alcohol products, and the centrifugal dehydrator is used to process the processed polyethylene.
  • the alcohol product goes into dehydration and drying.
  • the PVA curing machine 100 provided by the present invention is installed after the pulverizer and before the centrifugal dehydrator.
  • the polyvinyl alcohol product processed by the belt alcoholysis machine and the pulverizer is transported to the curing machine provided by the present invention.
  • the additives specifically include acetic acid, methanol, alkali participating in the alcoholysis reaction, and water.
  • the thermally conductive shell 1 is provided with four feeding ports 101, which are used to add acetic acid, methanol, alkali participating in the alcoholysis reaction, and water respectively. It should be noted that the setting is not limited to four feeding ports 101, and other numbers can also be set. In addition, multiple additives may share one feeding port 101 , and multiple additives may be added to the interior of the thermally conductive housing 1 through one feeding port 101 .
  • the feeding port 101 is provided at the top of the thermally conductive housing 1, and the discharge port is connected with a discharge pipe 18.
  • the thermal conductive housing 1 is also provided with an observation port, a light irradiation port, a pressure measuring port and a temperature measuring port.
  • the discharge port in order to fully react between the material and the additive, the discharge port is provided with an overflow baffle 8, and the material does not start to be discharged until the material is filled in the housing to the position of the overflow plate.
  • the PVA curing machine 100 also includes a discharging mechanism 9.
  • the discharging mechanism 9 includes a discharging plate 901 and a connecting rod 902.
  • the overflow baffle 8 is provided with a discharging mechanism. port, the connecting rod 902 is connected to the discharge plate 901, and the discharge plate 901 is used to open or block the discharge port.
  • the remaining materials in the thermally conductive housing 1 are discharged through the discharge plate 901.
  • the PVA curing machine 100 also includes a handle 903, a positioning sleeve 10 and a clamp sleeve 11.
  • One end of the connecting rod 902 is connected to the unloading plate 901, and the other end of the connecting rod 902 passes through the thermal conductor.
  • the shell 1 extends out, the ferrule 11 is set on the connecting rod 902, and the ferrule 11 is fixed on the thermal conductive housing 1.
  • One end of the positioning sleeve 10 passes through the ferrule 11 and is positioned through the limiting structure.
  • the handle 903 is set on The other end of the positioning sleeve 10 is external and is fixedly connected to the positioning sleeve 10 .
  • the other end of the connecting rod 902 passes through the positioning sleeve 10 and is threadedly connected to the positioning sleeve 10 .
  • the handle 903 is rotated forward and backward, and the connecting rod 902 drives the discharge plate 901 to move away from or close to the discharge port, thereby opening or closing the discharge port.
  • the limiting structure is specifically a limiting flange, the ferrule 11 is against the limiting flange, and the two ends of the positioning sleeve 10 are positioned by the handle 903 and the limiting flange respectively.
  • the PVA curing machine 100 also includes two sealing components.
  • the two sealing components are symmetrically arranged at both ends of the thermally conductive housing 1. Both ends of the thermally conductive housing 1 are provided with openings for the rotating shaft 2 to pass through.
  • the two sealing assemblies correspond to the two openings one-to-one, and the sealing assemblies are used to seal the gap between the side walls of the corresponding openings and the rotating shaft 2 .
  • the sealing assembly includes: a first sealing sleeve 12.
  • the first sealing sleeve 12 is disposed in its corresponding opening.
  • the rotating shaft 2 passes through the first sealing sleeve 12.
  • the first sealing sleeve 12 has Two sealing tooth assemblies are provided on the inner peripheral wall along the axial direction of the first sealing sleeve 12.
  • the sealing tooth assembly includes a plurality of annular teeth 1201 arranged side by side along the axial direction of the first sealing sleeve 12.
  • a labyrinth cavity is formed between them, the inside of the first sealing sleeve 12 is connected with the discharge port, and the communication position between the first sealing sleeve 12 and the discharge port is located between the two sealing tooth assemblies; it is provided on the first sealing sleeve 12
  • a second sealing sleeve 14 is located away from one end of the thermally conductive housing 1 and connected to the first sealing sleeve 12.
  • the second sealing sleeve 14 is sleeved on the rotating shaft 2.
  • a packing seal cavity is provided on the inner peripheral wall of the second sealing sleeve 14.
  • a plurality of packing seal rings 15 are arranged side by side in the seal cavity along the axial direction of the second sealing sleeve 14.
  • Each packing seal ring 15 is sleeved on the rotating shaft 2.
  • the second sealing sleeve 14 is close to the inner peripheral wall of one end of the first sealing sleeve 12.
  • a sealing groove is also provided on the sealing groove, and a lip seal ring 19 is provided in the sealing groove; a distribution orifice ring 16.
  • a distribution orifice ring 16 is provided between two adjacent packing sealing rings 15.
  • the distribution orifice ring 16 is sleeved on the rotating shaft 2.
  • a plurality of air inlet holes are provided on the peripheral side wall of the distribution orifice ring 16.
  • the two ends of the distribution orifice ring 16 are respectively provided with a plurality of third holes arranged along the circumferential direction of the distribution orifice ring 16.
  • the air inlet hole corresponds to the first air outlet hole and the second air outlet hole.
  • the air inlet hole is connected with the inert gas, and the air inlet hole is connected with the inert gas.
  • the air hole is connected with the corresponding first air outlet hole and the second air outlet hole.
  • the first sealing sleeve 12 is connected with the discharge port through the guide tube 13, and the communication position between the first sealing sleeve 12 and the guide tube 13 is located between the two sealing tooth assemblies.
  • the sealing effect of the PVA curing machine 100 provided in this embodiment is greatly improved.
  • a third sealing sleeve 21 is provided on the thermal conductive shell 1, the connecting rod 902 passes through the third sealing sleeve 21, and a seal for sealing the third sealing sleeve 21 and the connecting rod 902 is provided between the third sealing sleeve 21 and the connecting rod 902. sealing filler for the gap between.
  • one end of the third sealing sleeve 21 is closed, and the other end is provided with an opening and a gland 20 for opening or closing the opening. The sealing packing is inserted between the third sealing sleeve 21 and the connecting rod 902 from the opening.
  • the heat tracing mechanism 7 is a heat tracing jacket, and a heat exchange medium is provided inside the heat tracing jacket.
  • the heating jacket has a tubular structure. But it is not limited to a tubular structure and can also be a honeycomb structure.
  • multiple heat tracing mechanisms 7 can be provided along the length direction of the heat conductive shell 1 as needed, and the temperatures of the multiple heat tracing mechanisms 7 can be the same or different, depending on actual needs.
  • the heat exchange medium is water, but it is not limited to water, and other media that can realize heat exchange can also be used.
  • the mixing and conveying mechanism also includes a mixing rake 4 arranged sequentially along the axis of the rotating shaft 2.
  • the mixing rake 4 includes a plurality of mixing blades evenly arranged along the circumferential direction of the rotating shaft 2. Each mixing blade is fixedly connected to the rotating shaft 2.
  • the rotating shaft 2 includes a coaxially arranged driving shaft 201 and a driven shaft 202.
  • One end of the driving shaft 201 is transmission connected to one end of the driven shaft 202, and the other end of the driving shaft 201 is connected with the driven shaft 202.
  • the other end of the driven shaft 202 extends through the two ends of the thermal conductive housing 1 and is rotatably supported on the two supports 5 respectively.
  • the opposite ends of the driving shaft 201 and the driven shaft 202 are respectively provided with first mounting holes and second mounting holes, and the two ends of the connecting short shaft 203 are respectively embedded in the first mounting holes and the second mounting holes. And the two ends of the connecting short shaft 203 are connected to the driving shaft 201 and the driven shaft through first bolts and second bolts respectively.
  • connecting short shaft 203 is connected to the inner wall of the thermally conductive housing 1 through the hanger 17 .
  • a hanging sliding bearing is installed on the connecting short shaft 203.
  • the hanging sliding bearing is installed in the hanging bearing seat.
  • the hanging bearing seat is fixed on the housing through the hanger 17.
  • the two power devices 6 there are two power devices 6 and two mixing and conveying mechanisms.
  • the two mixing and conveying mechanisms are arranged side by side.
  • the two power devices 6 are respectively used to drive the two rotating shafts 2 to rotate.
  • the power device 6 includes a motor, a reducer and a manual transmission connected in sequence, and the output end of the manual transmission is drivingly connected to the rotating shaft 2 .
  • the rotation speed of the rotating shaft 2 is adjusted through a manual transmission.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Accessories For Mixers (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)

Abstract

一种PVA熟化机，包括：导热外壳(1)，导热外壳(1)设置有用于添加添加剂的加料口(101)，导热外壳(1)的一端设置有出料口；伴热机构(7)，伴热机构(7)设置于导热外壳(1)上，伴热机构(7)用于加热导热外壳(1)，并通过导热外壳(1)加热物料。通过设置伴热机构(7)，所述熟化机能够有效控制醇解反应的温度，通过设置多个加料口(101)，能够根据实际市场需求添加不同添加剂，进而实现醇解中碱加入的摩尔比、醋酸乙烯甲醇溶液的浓度及含水率可调，如此通过采用所述PVA熟化机对现有醇解设置制备的聚乙烯醇产品重新进行加工，能够实现不同规格聚乙烯醇产品的制备。

Description

PVA熟化机 技术领域
本发明涉及熟化设备领域，特别是涉及一种PVA熟化机。
背景技术
聚乙烯醇，简称PVA(polyvinyl alcohol)，由于“乙烯醇”易异构化为乙醛，不能通过理论单体“乙烯醇”的聚合来制备聚乙烯醇，只能通过聚乙酸乙烯酯的醇解或者水解反应来制备，而醇解法制成的聚乙烯醇精制容易，纯度较高，主产物的性能较好，因此工业上通常采用醇解法来制备聚乙烯醇。
而目前采用醇解法制备聚乙烯醇时受限于皮带醇解机、粉碎机等醇解设备的结构特点，为了使生产过程能够顺畅进行以及使产品性能的重要指标醇解度和聚合度相对稳定，只能将醇解反应温度、醇解中碱加入的摩尔比、醋酸乙烯甲醇溶液的浓度及含水率调整到相应的规定值，这就导致目前的醇解设备只能制备一种规格的聚乙烯醇，这在消费市场毫无新意可言，缺少竞争力。因此，如何制备多种规格的聚乙烯醇成为本领域技术人员目前所亟待解决的问题。
发明内容
为解决以上技术问题，本发明提供一种PVA熟化机，通过采用本发明提供的PVA熟化机对现有醇解设置制备的聚乙烯醇产品重新进行加工，能够实现不同规格聚乙烯醇的制备。
为实现上述目的，本发明提供了如下方案：
本发明提供一种PVA熟化机，包括：导热外壳，所述导热外壳设置有多个用于添加添加剂的加料口，所述导热外壳的一端设置有出料口；搅拌输送机构，所述搅拌输送机构包括转轴以及沿所述转轴的长度方向螺旋设置于所述转轴上的螺旋叶片，所述转轴的两端分别穿过所述导热外壳的两端伸出，所述螺旋叶片用于搅拌设置于所述导热外壳内部的物料、并将所述物料输送至所述出料口；支座，所述转轴的两端各设置有一个所述支座，且所述转轴的两端分别可转动地支撑于两个所述支座上；动力装置， 所述动力装置与所述转轴相连、以驱动所述转轴转动；伴热机构，所述伴热机构设置于所述导热外壳上，所述伴热机构用于加热所述导热外壳，并通过所述导热外壳加热所述物料。
优选地，所述出料口设置有溢流挡板。
优选地，PVA熟化机还包括卸料机构，所述卸料机构包括卸料板和连杆，所述溢流挡板上设置有卸料口，所述连杆与所述卸料板相连，所述卸料板用于开启或者封堵所述卸料口。
优选地，PVA熟化机还包括手柄、定位套以及卡套，所述连杆的一端与所述卸料板连接，所述连杆的另一端穿过所述导热外壳伸出，所述卡套套设于所述连杆上，且所述卡套固定于所述导热外壳上，所述定位套的一端穿过所述卡套、并通过限位结构定位，所述手柄套设于所述定位套的另一端外部、并与所述定位套固定连接，所述连杆的另一端穿过所述定位套、并与所述定位套螺纹连接。
优选地，PVA熟化机还包括两个密封组件，两个所述密封组件对称设置于所述导热外壳的两端，所述导热外壳的两端均设置有用于供所述转轴穿过的开孔，两个所述密封组件与两个所述开孔一一对应，所述密封组件用于密封其所述对应的所述开孔侧壁与转轴之间的间隙。
优选地，所述密封组件包括：第一密封套，所述第一密封套设置于其所对应的所述开孔内，所述转轴穿过所述第一密封套，所述第一密封套的内周壁上沿所述第一密封套的轴线方向设置有两个密封齿组件，所述密封齿组件包括多个沿所述第一密封套的轴线方向并排设置的环形齿，任意相邻两所述环形齿之间均形成有迷宫空腔，所述第一密封套内部与所述出料口相连通，且所述第一密封套与所述出料口的连通位置位于两个所述密封齿组件之间；设置于所述第一密封套远离所述导热外壳的一端、并与所述第一密封套连接的第二密封套，所述第二密封套套设于所述转轴上，所述第二密封套的内周壁上设置有填料密封腔，所述填料密封腔内沿所述第二密封套的轴线方向并排设置有多个填料密封环，各所述填料密封环均套设于所述转轴上，所述第二密封套靠近所述第一密封套的一端内周壁上还设置有密封槽，所述密封槽内设置有唇形密封圈；分配孔环，多个所述填料密封环中，其中相邻的两个所述填料密封环之间设置有所述分配孔环，所 述分配孔环套设于所述转轴上，所述分配孔环的周侧壁上设置有多个进气孔，所述分配孔环的两端分别设置有多个沿所述分配孔环周向设置的第一出气孔和多个沿所述分配孔环的周向设置的第二出气孔，所述进气孔与所述第一出气孔以及所述第二出气孔均一一对应，所述进气孔与惰性气体相连通，且所述进气孔与其所对应的所述第一出气孔和所述第二出气孔均连通。
优选地，所述伴热机构为伴热夹套，所述伴热夹套内部设置有热交换介质。
优选地，所述搅拌输送机构还包括沿转轴轴线方向依次设置的搅拌耙，所述搅拌耙包括多个沿所述转轴的周向均匀设置的搅拌叶片，各所述搅拌叶片均与所述转轴固定连接。
优选地，所述转轴包括同轴设置的主动轴和从动轴，所述主动轴的一端和所述从动轴的一端传动连接，所述主动轴的另一端和所述从动轴的另一端分别穿过所述导热外壳的两端伸出、并分别可转动地支撑于两个所述支座上；所述动力装置和所述搅拌输送机构的数量均为两个，两个所述搅拌输送机构并排设置，两个所述动力装置分别用于驱动两个所述转轴转动。
优选地，所述动力装置包括依次传动连接电机、减速器和手动变速器，所述手动变速器的输出端与所述转轴传动连接。
本发明相对于现有技术取得了以下技术效果：
本发明的提供的PVA熟化机包括：导热外壳，导热外壳设置有用于添加添加剂的加料口，导热外壳的一端设置有出料口；搅拌输送机构，搅拌输送机构包括转轴以及沿转轴的长度方向螺旋设置于转轴上的螺旋叶片，转轴的两端分别穿过导热外壳的两端伸出，螺旋叶片用于搅拌设置于导热外壳内部的物料、并将物料输送至出料口；支座，转轴的两端各设置有一个支座，且转轴的两端分别可转动地支撑于两个支座上；动力装置，动力装置与转轴相连、以驱动转轴转动；伴热机构，伴热机构设置于导热外壳上，伴热机构用于加热导热外壳，并通过导热外壳加热物料。
现有的醇解装置包括皮带醇解机、粉碎机以及离心脱水机，皮带醇解机、粉碎机用于完成某一固定规格聚乙烯醇产品加工，离心脱水机用于对 加工完成的聚乙烯醇产品进入脱水干燥。具体使用时，本发明提供的通过PVA熟化机设置在粉碎机之后，离心脱水机之前，皮带醇解机、粉碎机加工完成的聚乙烯醇产品输送至本发明提供的熟化机，经本发明提供的熟化机重新醇解后，在输送至离心脱水机进行脱水干燥。而通过设置多个加料口，能够根据实际市场需求向本发明提供的PVA熟化机的导热外壳内部添加不同添加剂，进而能够对醇解中碱加入的摩尔比、醋酸乙烯甲醇溶液的浓度及含水率进行调整，通过设置伴热机构，能够对醇解反应温度进行调整，如此借助于本发明提供的PVA熟化机能够实现多种规格聚乙烯醇产品的制备。
附图说明
为了更清楚地说明本发明实施例或现有技术中的技术方案，下面将对实施例中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1为本发明实施例中提供的PVA熟化机的主视图；
图2为本发明实施例中提供的PVA熟化机的内部结构示意图；
图3为本发明实施例中提供的PVA熟化机卸料机构的结构示意图；
图4为本发明实施例中提供的PVA熟化机密封组件的结构示意图；
图5为本发明实施例中提供的PVA熟化机搅拌输送机构的结构示意图。
附图标记说明：
100、PVA熟化机；1、导热外壳；101、加料口；2、转轴；201、主动轴；202、从动轴；203、连接短轴；3、螺旋叶片；4、搅拌耙；5、支座；6、动力装置；7、伴热机构；8、溢流挡板；9、卸料机构；901、卸料板；902、连杆；903、手柄；10、定位套；11、卡套；12、第一密封套；1201、环形齿；13、导流管；14、第二密封套；15、填料密封环；16、分配孔环；17、吊架；18、出料管；19、唇形密封圈；20、压盖；21、第三密封套。
具体实施方式
本发明的目的是提供一种能够实现多种规格聚乙烯醇产品的制备的 熟化机。
为使本发明的上述目的、特征和优点能够更加明显易懂，下面结合附图和具体实施方式对本发明作进一步详细的说明。
参考图1-图5所示，本实施例提供的PVA熟化机100包括：导热外壳1，导热外壳1设置有用于添加添加剂的加料口101，导热外壳1的一端设置有出料口；搅拌输送机构，搅拌输送机构包括转轴2以及沿转轴2的长度方向螺旋设置于转轴2上的螺旋叶片3，转轴2的两端分别穿过导热外壳1的两端伸出，螺旋叶片3用于搅拌设置于导热外壳1内部的物料、并将物料输送至出料口支座5，转轴2的两端各设置有一个支座5，且转轴2的两端分别可转动地支撑于两个支座5上；动力装置6，动力装置6与转轴2相连、以驱动转轴2转动；伴热机构7，伴热机构7设置于导热外壳1上，伴热机构7用于加热导热外壳1，并通过导热外壳1加热物料。
现有的醇解装置包括皮带醇解机、粉碎机以及离心脱水机，皮带醇解机、粉碎机用于完成某一固定规格聚乙烯醇产品加工，离心脱水机用于对加工完成的聚乙烯醇产品进入脱水干燥。具体使用时，本发明提供的通过PVA熟化机100设置在粉碎机之后，离心脱水机之前，皮带醇解机、粉碎机加工完成的聚乙烯醇产品输送至本发明提供的熟化机，经本发明提供的熟化机重新醇解后，在输送至离心脱水机进行脱水干燥。而通过设置多个加料口101，能够根据实际市场需求向本发明提供的PVA熟化机100的导热外壳1内部添加不同添加剂，进而能够对醇解中碱加入的摩尔比、醋酸乙烯甲醇溶液的浓度及含水率进行调整，通过设置伴热机构7，能够对醇解反应温度进行调整，如此借助于本发明提供的PVA熟化机100能够实现多种规格聚乙烯醇产品的制备。
于本实施例中，添加剂具体包括醋酸、甲醇、参与醇解反应的碱、水。进一步地，导热外壳1上设置有四个加料口101，四个加料口101分别用于加入醋酸、甲醇、参与醇解反应的碱以及水。需要说明的是并不仅限于设置四个加料口101，还可以设置其它数量。另外，还可以多个添加剂共用一个加料口101，多个添加剂均通过一个加料口101添加至导热外壳1内部。
进一步地，加料口101设置于导热外壳1的顶端，出料口连通有出料 管18。
进一步地，导热外壳1还设置有观察口、光线照射口、测压口和测温口。
于本实施例中，为了使物料与添加剂充分反应，出料口设置有溢流挡板8，待物料在壳体内填充至溢流板位置时才开始出料。
于本实施例中，如图2-图3所示，PVA熟化机100还包括卸料机构9，卸料机构9包括卸料板901和连杆902，溢流挡板8上设置有卸料口，连杆902与卸料板901相连，卸料板901用于开启或者封堵卸料口。具体使用过程中，通过卸料板901将导热外壳1中残余的物料卸出。
于本实施例中，如图3所示，PVA熟化机100还包括手柄903、定位套10以及卡套11，连杆902的一端与卸料板901连接，连杆902的另一端穿过导热外壳1伸出，卡套11套设于连杆902上，且卡套11固定于导热外壳1上，定位套10的一端穿过卡套11、并通过限位结构定位，手柄903套设于定位套10的另一端外部、并与定位套10固定连接，连杆902的另一端穿过定位套10、并与定位套10螺纹连接。具体使用过程中，正反旋转手柄903，连杆902带动卸料板901朝向远离或者靠近卸料口的方向移动，进而实现卸料口的开启或者关闭。
进一步地，限位结构具体为限位凸缘，卡套11与限位凸缘相抵，定位套10的两端分别通过手柄903和限位凸缘定位。
于本实施例中，PVA熟化机100还包括两个密封组件，两个密封组件对称设置于导热外壳1的两端，导热外壳1的两端均设置有用于供转轴2穿过的开孔，两个密封组件与两个开孔一一对应，密封组件用于密封其对应的开孔侧壁与转轴2之间的间隙。
进一步地，如图4所示，密封组件包括：第一密封套12，第一密封套12设置于其所对应的开孔内，转轴2穿过第一密封套12，第一密封套12的内周壁上沿第一密封套12的轴线方向设置有两个密封齿组件，密封齿组件包括多个沿第一密封套12的轴线方向并排设置的环形齿1201，任意相邻两环形齿1201之间均形成有迷宫空腔，第一密封套12内部与出料口相连通，且第一密封套12与出料口的连通位置位于两个密封齿组件之间；设置于第一密封套12远离导热外壳1的一端、并与第一密封套12 连接的第二密封套14，第二密封套14套设于转轴2上，第二密封套14的内周壁上设置有填料密封腔，填料密封腔内沿第二密封套14的轴线方向并排设置有多个填料密封环15，各填料密封环15均套设于转轴2上，第二密封套14靠近第一密封套12的一端内周壁上还设置有密封槽，密封槽内设置有唇形密封圈19；分配孔环16，多个填料密封环15中，其中相邻的两个填料密封环15之间设置有分配孔环16，分配孔环16套设于转轴2上，分配孔环16的周侧壁上设置有多个进气孔，分配孔环16的两端分别设置有多个沿分配孔环16周向设置的第一出气孔和多个沿分配孔环16的周向设置的第二出气孔，进气孔与第一出气孔以及第二出气孔均一一对应，进气孔与惰性气体相连通，且进气孔与其所对应的第一出气孔和第二出气孔均连通。
进一步地，惰性气体具体选用氮气。第一密封套12通过导流管13与出料口相连通，第一密封套12与导流管13的连通位置位于两个密封齿组件之间。
具体使用过程中，经第一密封套12第一道密封后，液相和固相泄漏物经导流管13导引至出料口汇合，气相泄漏物经唇形密封圈19、填料密封环15和分配孔环16二次密封。通过设置密封组件，本实施例提供的PVA熟化机100的密封效果大大提高。
进一步地，导热外壳1上设置有第三密封套21，连杆902穿过第三密封套21，第三密封套21与连杆902之间设置有用于密封第三密封套21与连杆902之间间隙的密封填料。另外，第三密封套21的一端封闭，另一端设置置入口以及用于开启或者关闭置入口的压盖20，密封填料自置入口置入第三密封套21和连杆902之间。
于本实施例中，伴热机构7为伴热夹套，伴热夹套内部设置有热交换介质。
进一步地，伴热夹套为管状结构。但并不仅限于为管状结构，还可以为蜂窝状结构。另外，沿导热外壳1的长度方向根据需要可设置多个伴热机构7，且多个伴热机构7的温度可以相同，也可以不同，根据实际需要而定。
进一步地，热交换介质为水，但并不仅限于为水，还可选用其它能够 实现热交换的介质。
于本实施例中，为了使物料与添加剂混合更加充分，搅拌输送机构还包括沿转轴2轴线方向依次设置的搅拌耙4，搅拌耙4包括多个沿转轴2的周向均匀设置的搅拌叶片，各搅拌叶片均与转轴2固定连接。
于本实施例中，如图5所示，转轴2包括同轴设置的主动轴201和从动轴202，主动轴201的一端和从动轴202的一端传动连接，主动轴201的另一端和从动轴202的另一端分别穿过导热外壳1的两端伸出、并分别可转动地支撑于两个支座5上。
进一步地，主动轴201和从动轴202二者相对的两端分别设置有第一安装孔和第二安装孔，连接短轴203的两端分别嵌入第一安装孔和第二安装孔内，且连接短轴203的两端分别通过第一螺栓和第二螺栓与主动轴201和从动中连接。
进一步地，连接短轴203通过吊架17与导热外壳1的内壁相连。在连接短轴203上安装吊挂滑动轴承，吊挂滑动轴承安装在吊挂轴承座中，吊挂轴承座通过吊架17固定在壳体上。
于本实施例中，动力装置6和搅拌输送机构的数量均为两个，两个搅拌输送机构并排设置，两个动力装置6分别用于驱动两个转轴2转动。通过设置两个搅拌输送机构能够使物料与添加剂更加充分的混合。
于本实施例中，动力装置6包括依次传动连接电机、减速器和手动变速器，手动变速器的输出端与转轴2传动连接。具体使用过程中，通过手动变速器调节转轴2的转速。
本说明书中应用了具体个例对本发明的原理及实施方式进行了阐述，以上实施例的说明只是用于帮助理解本发明的方法及其核心思想；同时，对于本领域的一般技术人员，依据本发明的思想，在具体实施方式及应用范围上均会有改变之处。综上所述，本说明书内容不应理解为对本发明的限制。

Claims (10)

  1. 一种PVA熟化机，其特征在于，包括：
    导热外壳，所述导热外壳设置有用于添加添加剂的加料口，所述导热外壳的一端设置有出料口；
    搅拌输送机构，所述搅拌输送机构包括转轴以及沿所述转轴的长度方向螺旋设置于所述转轴上的螺旋叶片，所述转轴的两端分别穿过所述导热外壳的两端伸出，所述螺旋叶片用于搅拌设置于所述导热外壳内部的物料、并将所述物料输送至所述出料口；
    支座，所述转轴的两端各设置有一个所述支座，且所述转轴的两端分别可转动地支撑于两个所述支座上；
    动力装置，所述动力装置与所述转轴相连、以驱动所述转轴转动；
    伴热机构，所述伴热机构设置于所述导热外壳上，所述伴热机构用于加热所述导热外壳，并通过所述导热外壳加热所述物料。
  2. 根据权利要求1所述的PVA熟化机，其特征在于，所述出料口设置有溢流挡板。
  3. 根据权利要求2所述的PVA熟化机，其特征在于，还包括卸料机构，所述卸料机构包括卸料板和连杆，所述溢流挡板上设置有卸料口，所述连杆与所述卸料板相连，所述卸料板用于开启或者封堵所述卸料口。
  4. 根据权利要求3所述的PVA熟化机，其特征在于，还包括手柄、定位套以及卡套，所述连杆的一端与所述卸料板连接，所述连杆的另一端穿过所述导热外壳伸出，所述卡套套设于所述连杆上，且所述卡套固定于所述导热外壳上，所述定位套的一端穿过所述卡套、并通过限位结构定位，所述手柄套设于所述定位套的另一端外部、并与所述定位套固定连接，所述连杆的另一端穿过所述定位套、并与所述定位套螺纹连接。
  5. 根据权利要求1所述的PVA熟化机，其特征在于，还包括两个密封组件，两个所述密封组件对称设置于所述导热外壳的两端，所述导热外壳的两端均设置有用于供所述转轴穿过的开孔，两个所述密封组件与两个所述开孔一一对应，所述密封组件用于密封其所述对应的所述开孔侧壁与转轴之间的间隙。
  6. 根据权利要求5所述的PVA熟化机，其特征在于，所述密封组件包括：
    第一密封套，所述第一密封套设置于其所对应的所述开孔内，所述转轴穿过所述第一密封套，所述第一密封套的内周壁上沿所述第一密封套的轴线方向设置有两个密封齿组件，所述密封齿组件包括多个沿所述第一密封套的轴线方向并排设置的环形齿，任意相邻两所述环形齿之间均形成有迷宫空腔，所述第一密封套内部与所述出料口相连通，且所述第一密封套与所述出料口的连通位置位于两个所述密封齿组件之间；
    设置于所述第一密封套远离所述导热外壳的一端、并与所述第一密封套连接的第二密封套，所述第二密封套套设于所述转轴上，所述第二密封套的内周壁上设置有填料密封腔，所述填料密封腔内沿所述第二密封套的轴线方向并排设置有多个填料密封环，各所述填料密封环均套设于所述转轴上，所述第二密封套靠近所述第一密封套的一端内周壁上还设置有密封槽，所述密封槽内设置有唇形密封圈；
    分配孔环，多个所述填料密封环中，其中相邻的两个所述填料密封环之间设置有所述分配孔环，所述分配孔环套设于所述转轴上，所述分配孔环的周侧壁上设置有多个进气孔，所述分配孔环的两端分别设置有多个沿所述分配孔环周向设置的第一出气孔和多个沿所述分配孔环的周向设置的第二出气孔，所述进气孔与所述第一出气孔以及所述第二出气孔均一一对应，所述进气孔与惰性气体相连通，且所述进气孔与其所对应的所述第一出气孔和所述第二出气孔均连通。
  7. 根据权利要求1所述的PVA熟化机，其特征在于，所述伴热机构为伴热夹套，所述伴热夹套内部设置有热交换介质。
  8. 根据权利要求1所述的PVA熟化机，其特征在于，所述搅拌输送机构还包括沿转轴轴线方向依次设置的搅拌耙，所述搅拌耙包括多个沿所述转轴的周向均匀设置的搅拌叶片，各所述搅拌叶片均与所述转轴固定连接。
  9. 根据权利要求1所述的PVA熟化机，其特征在于，所述转轴包括同轴设置的主动轴和从动轴，所述主动轴的一端和所述从动轴的一端传动连接，所述主动轴的另一端和所述从动轴的另一端分别穿过所述导热外壳 的两端伸出、并分别可转动地支撑于两个所述支座上；所述动力装置和所述搅拌输送机构的数量均为两个，两个所述搅拌输送机构并排设置，两个所述动力装置分别用于驱动两个所述转轴转动。
  10. 根据权利要求1所述的PVA熟化机，其特征在于，所述动力装置包括依次传动连接电机、减速器和手动变速器，所述手动变速器的输出端与所述转轴传动连接。
PCT/CN2022/139163 2022-04-14 2022-12-15 Pva熟化机 WO2023197650A1 (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP22937279.2A EP4349472A1 (en) 2022-04-14 2022-12-15 Pva curing machine

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202210393528 2022-04-14
CN202210393528.4 2022-04-14

Publications (1)

Publication Number Publication Date
WO2023197650A1 true WO2023197650A1 (zh) 2023-10-19

Family

ID=82285908

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2022/139163 WO2023197650A1 (zh) 2022-04-14 2022-12-15 Pva熟化机

Country Status (3)

Country Link
EP (1) EP4349472A1 (zh)
CN (1) CN114733470A (zh)
WO (1) WO2023197650A1 (zh)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114733470A (zh) * 2022-04-14 2022-07-12 天华化工机械及自动化研究设计院有限公司 Pva熟化机

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0597918A (ja) * 1991-10-04 1993-04-20 Sekisui Chem Co Ltd ポリビニルアセタール樹脂の製造方法
US5772218A (en) * 1993-03-12 1998-06-30 Warman International Limited Uniform compression gland seal assembly
CN201306911Y (zh) * 2008-12-06 2009-09-09 兰州瑞德干燥技术有限公司 聚乙烯醇圆盘式桨叶干燥机
CN202570173U (zh) * 2012-04-13 2012-12-05 湖南省湘维有限公司 一种螺杆醇解机
WO2013044458A1 (zh) * 2011-09-28 2013-04-04 长沙中联重工科技发展股份有限公司 物料搅拌加热装置和沥青搅拌设备
CN104204039A (zh) * 2012-03-30 2014-12-10 巴斯夫欧洲公司 在具有反式螺杆螺纹的筒式热交换器中进行热表面后交联的方法
CN205710536U (zh) * 2016-04-27 2016-11-23 内蒙古双欣环保材料股份有限公司 一种聚醋酸乙烯的醇解装置
CN114733470A (zh) * 2022-04-14 2022-07-12 天华化工机械及自动化研究设计院有限公司 Pva熟化机
CN217431721U (zh) * 2022-04-14 2022-09-16 天华化工机械及自动化研究设计院有限公司 Pva熟化机

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0597918A (ja) * 1991-10-04 1993-04-20 Sekisui Chem Co Ltd ポリビニルアセタール樹脂の製造方法
US5772218A (en) * 1993-03-12 1998-06-30 Warman International Limited Uniform compression gland seal assembly
CN201306911Y (zh) * 2008-12-06 2009-09-09 兰州瑞德干燥技术有限公司 聚乙烯醇圆盘式桨叶干燥机
WO2013044458A1 (zh) * 2011-09-28 2013-04-04 长沙中联重工科技发展股份有限公司 物料搅拌加热装置和沥青搅拌设备
CN104204039A (zh) * 2012-03-30 2014-12-10 巴斯夫欧洲公司 在具有反式螺杆螺纹的筒式热交换器中进行热表面后交联的方法
CN202570173U (zh) * 2012-04-13 2012-12-05 湖南省湘维有限公司 一种螺杆醇解机
CN205710536U (zh) * 2016-04-27 2016-11-23 内蒙古双欣环保材料股份有限公司 一种聚醋酸乙烯的醇解装置
CN114733470A (zh) * 2022-04-14 2022-07-12 天华化工机械及自动化研究设计院有限公司 Pva熟化机
CN217431721U (zh) * 2022-04-14 2022-09-16 天华化工机械及自动化研究设计院有限公司 Pva熟化机

Also Published As

Publication number Publication date
EP4349472A1 (en) 2024-04-10
CN114733470A (zh) 2022-07-12

Similar Documents

Publication Publication Date Title
WO2023197650A1 (zh) Pva熟化机
CN208906072U (zh) 一种加热均匀的反应釜
CN217431721U (zh) Pva熟化机
CN210969501U (zh) 一种干式变压器线圈浇注辅助装置
CN105749774A (zh) 一种管道混合器
CN102392406A (zh) 物料搅拌加热装置和沥青搅拌设备
CN215654906U (zh) 畜牧养殖用饲料混合装置
CN213467794U (zh) 一种反应釜搅拌装置
CN220071452U (zh) 一种原料混合装置
CN211782495U (zh) 一种沥青检测用干燥装置
CN210786957U (zh) 一种用于饲料生产的自热式双轴差速调质器
CN115646251B (zh) 一种耐800℃高温粉末涂料的制备方法及制备设备
CN207736564U (zh) 一种双螺旋杆造粒机的螺旋输送机构
CN206661196U (zh) 一种立式聚合反应釜
CN203886477U (zh) 高光耐低温超韧abs或pc材料的双级混合装置
CN212795487U (zh) 塑料板材生产用原料混合设备
CN206404641U (zh) 一种高效立式搅拌釜
CN211177727U (zh) 一种新型双轴空心桨叶与外热转筒协同回转干燥装置
CN204735224U (zh) 用于化工领域的搅拌器反应釜
CN110030821B (zh) 一种粮食烘干同轴侧入式混流变量装置
JP2010132920A (ja) 水溶性セルロースエーテルの乾燥方法
CN220657398U (zh) 一种用于制备调节混凝土性能的外加剂的生产系统
CN211636394U (zh) 一种双螺旋锥形混合机的干燥结构
CN215920960U (zh) 用于汽车阻尼片生产的捏合机物料搅拌装置
CN219596404U (zh) 一种分散剂配置槽

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 22937279

Country of ref document: EP

Kind code of ref document: A1

WWE Wipo information: entry into national phase

Ref document number: 2022937279

Country of ref document: EP

ENP Entry into the national phase

Ref document number: 2022937279

Country of ref document: EP

Effective date: 20240103