CN115230028A - Tunnel furnace for controlling particle sedimentation degree in thin film in sectional type and partition manner - Google Patents

Tunnel furnace for controlling particle sedimentation degree in thin film in sectional type and partition manner Download PDF

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Publication number
CN115230028A
CN115230028A CN202210658318.3A CN202210658318A CN115230028A CN 115230028 A CN115230028 A CN 115230028A CN 202210658318 A CN202210658318 A CN 202210658318A CN 115230028 A CN115230028 A CN 115230028A
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CN
China
Prior art keywords
tunnel furnace
particle
temperature control
heating device
segment
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Pending
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CN202210658318.3A
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Chinese (zh)
Inventor
闫英
周平
罗想
李承航
方子铿
王续跃
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Dalian University of Technology
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Dalian University of Technology
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Application filed by Dalian University of Technology filed Critical Dalian University of Technology
Priority to CN202210658318.3A priority Critical patent/CN115230028A/en
Publication of CN115230028A publication Critical patent/CN115230028A/en
Pending legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C35/00—Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
    • B29C35/02—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould
    • B29C35/0288—Controlling heating or curing of polymers during moulding, e.g. by measuring temperatures or properties of the polymer and regulating the process
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C35/00—Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
    • B29C35/02—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould
    • B29C35/0277—Apparatus with continuous transport of the material to be cured

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  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Thermal Sciences (AREA)
  • Heating, Cooling, Or Curing Plastics Or The Like In General (AREA)

Abstract

The invention discloses a tunnel furnace for controlling the particle sedimentation degree in a film in a sectional and sectional manner, which comprises a bracket, a conveyor belt, a tunnel furnace cover, a multi-region temperature control heating device, a particle sedimentation monitoring device, an inter-section isolation device, a temperature control heating device, an isolation box and a cooling box, wherein the conveyor belt is arranged on the bracket; the inter-segment isolation device divides the region in the tunnel furnace cover into two segments, the front segment is a zone real-time temperature control segment and is used for controlling the particle settling velocity, and the rear segment is a rapid solidification segment and is used for maintaining the settling degree and rapidly solidifying, so that the effective control of particle settling is realized. The particle sedimentation monitoring device can realize that the multi-zone temperature control heating device can adjust the heating temperature of each zone in real time according to the monitored particle sedimentation degree information of each zone, and the particle sedimentation degree of each zone on the whole film plane can be controlled to be uniform. The invention controls the particle sedimentation by controlling the curing temperature, thereby improving the performance of the particle film and the matching property of the subsequent process.

Description

Tunnel furnace for controlling particle sedimentation degree in thin film in sectional type and partition manner
Technical Field
The invention relates to the technical field of film drying, in particular to a tunnel furnace for controlling the particle sedimentation degree in a film in a sectional and sectional manner.
Background
The process of preparing the film by mixing the fluid with higher viscosity such as organic silica gel, epoxy resin and the like with the particles is widely applied to the fields of chemical industry, optics, electronic technology and the like. In the preparation of the film, the curing process is one of the important processes, which affects the quality and performance of the film, and the tunnel furnace is a common drying device in the film production process. The tunnel furnace is a production line type device, and the working principle is that a continuously running conveying system in the tunnel furnace is heated and dried through heat conduction, convection and radiation. When drying and curing, the film generates relative motion with the electric heating element through the conveying chain plate, the steel belt or the mesh belt, thereby completing the uniform drying and conveying work.
However, in the process from preparation to solidification of the particle-containing film, because the density of the particles is often far greater than that of the liquid, the particles are easy to settle under the action of gravity, and the settling degree of the particles is highly related to the solidification degree of the film, when the solidification degree of the film is uncontrollable, the settling degree of the particles is random, and the uniformity and the reliability of the quality of the particle-containing film are seriously influenced. Most of the existing tunnel furnace devices only set fixed temperature and curing time, but do not consider the problem of sedimentation of particles in the curing process, so that the particles in the liquid are accumulated on the bottom layer of the film, and the performance of the finally obtained film is not consistent with a preset value. Moreover, the uniformity of the final cured particle-containing film is poor and the quality and performance of the final cured particle-containing film are not satisfactory for use due to the different particle settling levels in the various regions caused by uneven tunnel furnace heating across the plane of the film. Therefore, a drying device capable of controlling the particle sedimentation degree in different areas during the film solidification stage according to the control target of the particle sedimentation is needed.
Disclosure of Invention
To solve the above problems of the prior art, the present invention is to design a tunnel furnace for controlling the degree of particle sedimentation in a thin film in a sectional type and partitioned manner to achieve a control of the degree of particle sedimentation in the thin film over the entire plane at a given target.
In order to realize the purpose, the technical scheme of the invention is as follows: a tunnel furnace for controlling the particle sedimentation degree in a film in a sectional and sectional manner comprises a bracket, a conveyor belt, a tunnel furnace cover, a multi-region temperature control heating device, a particle sedimentation monitoring device, an inter-section isolation device, a temperature control heating device, an isolation box and a cooling box;
the tunnel furnace cover is fixed at the front section above the bracket, the cooling box is fixed at the rear section above the bracket, and the isolation box is arranged between the tunnel furnace cover and the cooling box;
the conveyor belt is fixed above the bracket and penetrates through the tunnel furnace cover, the isolation box and the cooling box;
the inter-segment isolation device divides the area in the tunnel furnace cover into two segments, wherein the front segment is a partitioned real-time temperature control segment and is used for controlling the particle sedimentation speed, and the rear segment is a rapid solidification segment and is used for maintaining the sedimentation degree and rapidly solidifying;
the zone real-time temperature control section is provided with a zone temperature control heating device and a particle settlement monitoring device, and the rapid curing section is provided with a temperature control heating device;
the particle sedimentation monitoring device is used for monitoring the sedimentation degree of particles in each area of the whole film plane;
the motor is fixedly arranged on the tunnel furnace cover or the bracket and used for driving the conveyor belt;
the isolation box is positioned at the outlet of the rapid solidification section and isolates heat transfer between the rapid solidification section and the cooling box;
and the cooling box is used for cooling and dedusting the solidified film.
Furthermore, multizone accuse temperature heating device and accuse temperature heating device are fixed in above the support or are fixed in on the tunnel furnace cover inner wall.
Further, the particle settlement monitoring device and the inter-segment isolating device are both fixed on the inner wall of the tunnel furnace cover.
Furthermore, multizone accuse temperature heating device divides into N heating region with the real-time accuse temperature section of subregion, and wherein N's numerical value sets up according to the technological requirement, and each heating region is the independent control heating temperature all, adjusts the temperature of each heating region on the conveyer belt.
Furthermore, multizone accuse temperature heating device and particle settlement monitoring devices are negative feedback closed loop control system, and multizone accuse temperature heating device adjusts the temperature in real time according to the particle settlement condition that particle settlement monitoring devices detected promptly.
Compared with the prior art, the invention has the following beneficial effects:
1. the invention divides the curing process of the tunnel furnace into different stages, namely a zone real-time temperature control stage and a rapid curing stage. The intersegment isolation device is positioned at the outlet of the subarea real-time temperature control section and isolates heat transfer between the subarea real-time temperature control section and the rapid curing section; the zone real-time temperature control section is used for controlling the sedimentation speed of particles, and the rapid solidification section is used for maintaining the sedimentation degree and rapidly solidifying, so that the effective control of the particle sedimentation is realized.
2. The particle sedimentation monitoring device provided by the invention can realize that the heating temperature of each area is adjusted in real time by the multi-area temperature control heating device according to the monitored particle sedimentation degree information of each area, and the particle sedimentation degree of each area on the whole film plane is controlled to be uniform.
3. Because the invention is provided with the multi-section heating furnace, under the conditions that the sedimentation curve of the particles in the liquid at each temperature is defined and the sedimentation degree of the particles in the liquid is monitored by the sensor, the sedimentation of the particles is controlled by controlling the curing temperature, and the performance of the particle film and the matching of the subsequent process are improved.
Drawings
FIG. 1 is a schematic structural diagram of the present invention, which mainly comprises a zone real-time temperature control section and a rapid curing section;
FIG. 2 is a schematic plan view of the multi-zone temperature-controlled heating apparatus shown in FIG. 1.
In the figure: 1. a support; 2. a conveyor belt; 3. a multi-zone temperature controlled heating device; 4. a particle sedimentation monitoring device; 5. a tunnel furnace cover; 6. an intersegment isolation device; 7. a motor; 8. a temperature control heating device; 9. an isolation box; 10. and (6) cooling the tank.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative only for the purpose of illustrating the invention and are not to be construed as limiting the invention. On the contrary, the embodiments of the invention include all changes, modifications and equivalents coming within the spirit and terms of the claims appended hereto.
As shown in fig. 1-2, a tunnel furnace for controlling particle sedimentation degree in a film in a sectional and zone manner comprises a support 1, a conveyor belt 2, a tunnel furnace hood 5, a multi-zone temperature control heating device 3, a particle sedimentation monitoring device 4, an inter-zone isolation device 6, a temperature control heating device 8, an isolation box 9 and a cooling box 10;
the tunnel furnace cover 5 is fixed at the front section above the bracket 1, the cooling box 10 is fixed at the rear section above the bracket 1, and the isolation box 9 is arranged between the tunnel furnace cover 5 and the cooling box 10;
the conveyor belt 2 is fixed above the bracket 1 and penetrates through the tunnel furnace cover 5, the isolation box 9 and the cooling box 10;
the inter-segment isolation device 6 divides the area in the tunnel furnace cover 5 into two segments, wherein the front segment is a partitioned real-time temperature control segment and is used for controlling the particle sedimentation speed, and the rear segment is a rapid solidification segment and is used for maintaining the sedimentation degree and rapidly solidifying;
the zone real-time temperature control section is provided with a zone temperature control heating device 8 and a particle settlement monitoring device 4, and the rapid curing section is provided with a temperature control heating device 8;
the particle sedimentation monitoring device 4 is used for monitoring the particle sedimentation degree of each area of the whole film plane;
the motor 7 is fixedly arranged on the tunnel furnace cover 5 or the bracket 1 and is used for driving the conveyor belt 2;
the isolation box 9 is positioned at the outlet of the rapid solidification section and isolates heat transfer between the rapid solidification section and the cooling box 10;
the cooling box 10 cools and removes dust from the solidified film.
Furthermore, the multi-zone temperature control heating device 3 and the temperature control heating device 8 are fixed above the support 1 or on the inner wall of the tunnel furnace cover 5.
Further, the particle settlement monitoring device 4 and the inter-segment isolation device 6 are both fixed on the inner wall of the tunnel furnace cover 5.
Further, multizone accuse temperature heating device 3 divides into N heating regions with the real-time accuse temperature section of subregion, and wherein N's numerical value sets up according to the technological requirement, and each heating region is the independent control heating temperature all, adjusts the temperature of each heating region on conveying belt 2.
Further, multizone accuse temperature heating device 3 constitutes negative feedback closed loop control system with particle settlement monitoring devices 4, and multizone accuse temperature heating device 3 adjusts the temperature in real time according to the particle settlement condition that particle settlement monitoring devices 4 detected promptly.
The working principle of the invention is as follows:
after the preparation of the particle film is finished, the particle film is conveyed to a tunnel furnace through a conveyor belt 2, and particles in the film are settled under the action of gravity in the process. Firstly, the film enters a partitioned real-time temperature control section from the conveyor belt 2, and the particle sedimentation monitoring device 4 detects the particle sedimentation condition of each area. Comparing the monitored particle sedimentation conditions under the condition that the sedimentation curves of the given particles and the solution at various temperatures are definite, and controlling the temperature of the heating device in each area through a negative feedback closed-loop control system to realize the controllable sedimentation of the particles in each area; and then, setting the temperature to be higher than the critical value of the rapid curing temperature of the film by controlling the heating temperature in the rapid curing section, rapidly curing the film in the rapid curing section at the moment, and further keeping the controlled sedimentation degree in the temperature control section during the partitioned real-time control, thereby finally obtaining the film with the ideal particle sedimentation degree.

Claims (5)

1. The utility model provides a tunnel furnace of granule settlement degree in sectional type subregion control film which characterized in that: the device comprises a support (1), a conveyor belt (2), a tunnel furnace cover (5), a multi-zone temperature control heating device (3), a particle settlement monitoring device (4), an inter-section isolation device (6), a temperature control heating device (8), an isolation box (9) and a cooling box (10);
the tunnel furnace cover (5) is fixed at the front section above the support (1), the cooling box (10) is fixed at the rear section above the support (1), and the isolation box (9) is arranged between the tunnel furnace cover (5) and the cooling box (10);
the conveyor belt (2) is fixed above the bracket (1) and penetrates through the tunnel furnace cover (5), the isolation box (9) and the cooling box (10);
the inter-segment isolation device (6) divides the region in the tunnel furnace cover (5) into two segments, the front segment is a partitioned real-time temperature control segment and is used for controlling the sedimentation speed of particles, and the rear segment is a rapid solidification segment and is used for maintaining the sedimentation degree and rapidly solidifying;
the zone real-time temperature control section is provided with a zone temperature control heating device (8) and a particle settlement monitoring device (4), and the rapid curing section is provided with a temperature control heating device (8);
the particle sedimentation monitoring device (4) is used for monitoring the particle sedimentation degree of each area of the whole film plane;
the motor (7) is fixedly arranged on the tunnel furnace cover (5) or the bracket (1) and is used for driving the conveyor belt (2);
the isolation box (9) is positioned at the outlet of the rapid solidification section and isolates heat transfer between the rapid solidification section and the cooling box (10);
and the cooling box (10) is used for cooling and dedusting the solidified film.
2. The tunnel furnace for controlling the sedimentation degree of particles in the thin film in a sectional and sectional manner according to claim 1, wherein: the multi-zone temperature control heating device (3) and the temperature control heating device (8) are fixed above the support (1) or on the inner wall of the tunnel furnace hood (5).
3. The tunnel furnace for controlling the sedimentation degree of particles in the thin film in a sectional and sectional manner according to claim 1, wherein: the particle settlement monitoring device (4) and the intersegmental isolation device (6) are both fixed on the inner wall of the tunnel furnace cover (5).
4. The tunnel furnace for controlling the sedimentation degree of particles in the thin film in a sectional and sectional manner according to claim 1, wherein: multizone accuse temperature heating device (3) divide into N heating regions with the real-time accuse temperature section of subregion, and wherein N's numerical value sets up according to technological requirement, and the equal independent control heating temperature of each heating region adjusts the temperature of each heating region on conveyer belt (2).
5. The tunnel furnace for controlling the sedimentation degree of particles in the thin film in a sectional and sectional manner according to claim 1, wherein: the negative feedback closed-loop control system is formed by the multi-zone temperature control heating device (3) and the particle settlement monitoring device (4), namely, the temperature of the multi-zone temperature control heating device (3) is adjusted in real time according to the particle settlement condition detected by the particle settlement monitoring device (4).
CN202210658318.3A 2022-06-10 2022-06-10 Tunnel furnace for controlling particle sedimentation degree in thin film in sectional type and partition manner Pending CN115230028A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202210658318.3A CN115230028A (en) 2022-06-10 2022-06-10 Tunnel furnace for controlling particle sedimentation degree in thin film in sectional type and partition manner

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202210658318.3A CN115230028A (en) 2022-06-10 2022-06-10 Tunnel furnace for controlling particle sedimentation degree in thin film in sectional type and partition manner

Publications (1)

Publication Number Publication Date
CN115230028A true CN115230028A (en) 2022-10-25

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ID=83669625

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202210658318.3A Pending CN115230028A (en) 2022-06-10 2022-06-10 Tunnel furnace for controlling particle sedimentation degree in thin film in sectional type and partition manner

Country Status (1)

Country Link
CN (1) CN115230028A (en)

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