CN214470011U - A new trend system that is used for tunnel furnace to improve binder removal quality and efficiency - Google Patents
A new trend system that is used for tunnel furnace to improve binder removal quality and efficiency Download PDFInfo
- Publication number
- CN214470011U CN214470011U CN202120637470.4U CN202120637470U CN214470011U CN 214470011 U CN214470011 U CN 214470011U CN 202120637470 U CN202120637470 U CN 202120637470U CN 214470011 U CN214470011 U CN 214470011U
- Authority
- CN
- China
- Prior art keywords
- tunnel furnace
- furnace body
- air
- new trend
- fresh air
- 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.)
- Active
Links
Images
Classifications
-
- 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
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/60—Production of ceramic materials or ceramic elements, e.g. substitution of clay or shale by alternative raw materials, e.g. ashes
Landscapes
- Tunnel Furnaces (AREA)
Abstract
The utility model discloses a new trend system for tunnel furnace improves binder removal quality and efficiency, including tunnel furnace body and crucible, new trend system is including blast pipe, filter, air-blower, new trend trunk line, new trend auxiliary duct, air regulation valve and PLC controller, is equipped with the blast hole on tunnel furnace body, the exit end of new trend auxiliary duct passes through blast hole and tunnel furnace body sealing connection, the entrance point and the new trend trunk line of new trend auxiliary duct communicate with each other, air regulation valve locates in the new trend auxiliary duct, the new trend trunk line communicates with each other with the filter through the air-blower, the filter communicates with each other with the blast pipe, conveyor, heating device and air regulation valve all are connected with the PLC controller electricity. Adopt new trend system, through adopting segment control new trend input mode, can make the interior additive of shaping blank fully oxidize to decompose and get rid of, thereby improve the outward appearance and the quality of porcelain pottery product, have simple structure, convenient operation is fit for using widely.
Description
Technical Field
The utility model relates to a ceramic pipe auxiliary processing equipment technical field, specifically speaking are used for tunnel furnace to improve new trend system of binder removal quality and efficiency.
Background
Ceramic tubes are manufactured from alumina having good insulation properties and chemical stability as a main component, and are widely used for insulating tubes, protective tubes, and the like. Before a ceramic product (alumina tube) is formed, when powder needs to be prepared, a certain amount of additives are added into raw materials, wherein the additives comprise auxiliary agents such as a binder, a lubricant and a dispersant, and the technological performance of the alumina tube is improved by the added auxiliary agents; in addition, in order to improve the forming strength and the density, the performance and the quality of the ceramic product are improved, and the raw material formula comprises rare earth elements which are generally added in the raw material formula in the form of nitrate. Therefore, before the powder is sintered at high temperature, the additives contained in the powder, commonly called binder removal, must be removed to avoid the problem that various additives are not fully decomposed and remain in the sintered body to affect the performance of the product during high-temperature sintering.
The tunnel furnace is a tunnel type mechanical heating device which finishes baking through heat conduction, convection and radiation, adopts a tunnel furnace biscuit firing mode, and is used for pre-sintering a formed blank after a product is formed, namely, an additive is removed through a glue discharging mode, rare earth elements added in a nitrate mode are decomposed, so that a product material is in an inorganic pure oxide form, and then a pre-sintering process is carried out, so that an ideal ceramic product can be obtained after subsequent high-temperature sintering. Therefore, whether the additives are completely removed and whether the decomposition of various formulas is in place can affect the quality of the product after the continuous product is sintered at high temperature.
In recent years, in order to obtain perfect product appearance and quality, the addition amount of additives added in the powder preparation process and the addition amount of rare earth elements in the raw material formula are obviously increased. The existing tunnel furnace is adopted for glue discharging treatment, and because the tunnel furnace is provided with only one air inlet, in the glue discharging process, due to insufficient oxygen supply, additives in a formed blank cannot be sufficiently oxidized, decomposed and discharged, so that the problem that a small amount of air holes or microcracks are formed inside a ceramic product entering a sintering process is solved, and the finished product rate and the product performance of the ceramic product are finally influenced. Therefore, aiming at the air supply mode of the existing tunnel furnace, the improvement is needed, so that the production requirements of the existing products are met, and the product performance is improved.
SUMMERY OF THE UTILITY MODEL
The utility model discloses the technical problem that solve is to the problem that exists in the background art, a simple structure is provided, convenient operation's new trend system, through improving current air feed mode, take the segment control mode, make the additive in the shaping base can fully oxidize, and decompose and get rid of, avoid making the porcelain pottery product after high temperature sintering the problem that gas pocket or microcrack appear, thereby improve the outward appearance and the quality of porcelain pottery product, with this disqualification rate that reduces the product, and the production cost is reduced, specifically speaking is a new trend system that is used for the tunnel furnace to improve row's glue quality and efficiency.
For solving the technical problem, the utility model discloses the technical scheme who adopts does: a new air system for a tunnel furnace to improve the glue discharging quality and efficiency comprises a tunnel furnace body and a crucible, wherein the crucible is used for storing ceramic tubes to be subjected to glue discharging treatment, a feed inlet is formed in the left side of the tunnel furnace body, a discharge outlet is formed in the right side of the tunnel furnace body, a conveying device and a heating device are arranged in the inner cavity of the tunnel furnace body along the axial direction of the tunnel furnace body, the heating device is used for providing heat for the tunnel furnace body, the conveying device is used for conveying the crucible in which the ceramic tubes are stored into the tunnel furnace body for glue discharging treatment, the new air system comprises an air supply pipe, a filter, a blower, a new air main pipeline, a new air auxiliary pipeline, an air quantity regulating valve and a PLC (programmable logic controller), a plurality of air supply holes matched with the new air auxiliary pipeline are formed in the tunnel furnace body, the air supply holes are formed in the top of the tunnel furnace body and are communicated with the inner cavity of the tunnel furnace body, the outlet end of the new air auxiliary pipeline is hermetically connected with the tunnel furnace body through the air supply holes, the inlet end of the fresh air auxiliary pipeline is communicated with the fresh air main pipeline, the air volume regulating valve is arranged in the fresh air auxiliary pipeline, the fresh air main pipeline is communicated with the outlet end of the filter through an air blower, the inlet end of the filter is communicated with the air supply pipe, and the conveying device, the heating device and the air volume regulating valve are electrically connected with the PLC arranged on the outer side of the tunnel furnace body.
Further, a new trend system for tunnel furnace improves binder removal quality and efficiency, wherein the new trend auxiliary conduit is equipped with three, the supply-air hole is equipped with threely, three supply-air hole all sets up in being close to on the tunnel furnace body of feed inlet one side, the entrance point of three new trend auxiliary conduits with the new trend trunk line is parallel mode and communicates with each other.
Further, a new trend system for tunnel furnace improves binder removal quality and efficiency, wherein tunnel furnace body's length is 7.5 ~ 8.5m, and three supply-air hole equidistant evenly arranges on tunnel furnace body, and its spacing distance is 0.8 ~ 1.2m, and is close to spacing distance between supply-air hole and the feed inlet of feed inlet one side is 1 ~ 1.5m under air regulation valve's the effect, the amount of wind in controlling three new trend secondary pipe input tunnel furnace is from a left side to the right side 18 ~ 20m in proper order3/min、14～16m3Min and 8-10 m3/min。
Further, a new trend system for tunnel furnace improves binder removal quality and efficiency, wherein heating device in the tunnel furnace body is electric heating device or steam heating device, and conveyor in the tunnel furnace body is high temperature resistant conveyor.
Adopt a new trend system for tunnel furnace improves binder removal quality and efficiency, because be close to its feed inlet one side in the tunnel furnace body, be equipped with three equidistant evenly distributed's supply-air hole, the supply-air hole is parallelly connected mode through root new trend auxiliary conduit and new trend trunk line respectively and communicates with each other, and the amount of wind of the supply-air hole input of difference is different, through the segment control mode, can slow down binder removal section intensification rate, make various physicochemical reaction can steadily and slowly go on under the binder removal temperature, be favorable to making the additive of joining fully discharge, can decompose the rare earth element who adds with the nitrate mode simultaneously, make the product material become inorganic pure oxide form. Therefore, the additive in the forming blank can be fully oxidized and decomposed to be removed by adopting a segmented control fresh air input mode, the additive can be thoroughly removed, the problem of air holes or microcracks of the ceramic product after subsequent high-temperature sintering is avoided, the appearance and the quality of the ceramic product are improved, the qualification rate of the product is improved, the production cost is reduced, and the novel ceramic forming device has the advantages of simple structure, convenience in operation and suitability for popularization and use.
Drawings
The present invention will be described in further detail with reference to the accompanying drawings.
Fig. 1 is a schematic structural view of the present invention;
FIG. 2 is a prior art graph of a tunnel furnace body binder removal sintering;
figure 3 is a graph showing the sintering curve of the tunnel furnace body after glue discharging.
Shown in the figure: 1-tunnel furnace body, 11-feeding inlet, 12-discharging outlet, 13-air supply hole, 2-crucible, 3-air supply pipe, 4-filter, 5-blower, 6-fresh air main pipeline, 7-fresh air auxiliary pipeline, 8-air quantity regulating valve, 9-PLC controller, T is temperature and T is time.
Detailed Description
To further illustrate the concept of the present invention, the following embodiments of the present invention will be further described with reference to the accompanying drawings:
as shown in figure 1, the new air system for improving the glue discharging quality and efficiency of the tunnel furnace comprises a tunnel furnace body 1 and a crucible 2, wherein the crucible 2 is used for storing ceramic tubes to be subjected to glue discharging treatment, a feed inlet 11 is arranged on the left side of the tunnel furnace body 1, a discharge outlet 12 is arranged on the right side of the tunnel furnace body, a conveying device and a heating device are arranged in the inner cavity of the tunnel furnace body 1 along the axial direction of the tunnel furnace body, the heating device is used for providing heat for the tunnel furnace body 1, the conveying device is used for conveying the crucible 2 stored with the ceramic tubes to the tunnel furnace body 1 for glue discharging treatment, the new air system comprises an air supply pipe 3, a filter 4, an air blower 5, a new air main pipe 6, a new air auxiliary pipe 7, an air volume adjusting valve 8 and a PLC (programmable logic controller) 9, a plurality of air supply holes 13 matched with the new air auxiliary pipe 7 are arranged on the tunnel furnace body 1, the air supply hole 13 is arranged at the top of the tunnel furnace body 1 and is communicated with the inner cavity of the tunnel furnace body 1, the outlet end of the fresh air auxiliary pipeline 7 is hermetically connected with the tunnel furnace body 1 through the air supply hole 13, the inlet end of the fresh air auxiliary pipeline 7 is communicated with the fresh air main pipeline 6, the air volume adjusting valve 8 is arranged in the fresh air auxiliary pipeline 7, the fresh air main pipeline 6 is communicated with the outlet end of the filter 4 through the air blower 5, the inlet end of the filter 4 is communicated with the air supply pipe 3, and the conveying device, the heating device and the air volume adjusting valve 8 are all electrically connected with the PLC 9 arranged at the outer side of the tunnel furnace body 1.
Further, a new trend system for tunnel furnace improves binder removal quality and efficiency, wherein new trend auxiliary conduit 7 is equipped with three, the supply-air hole 13 is equipped with threely, three supply-air hole 13 all sets up in being close to on the tunnel furnace body 1 of feed inlet 11 one side, the entrance point of three new trend auxiliary conduit 7 with new trend trunk line 6 is parallel mode and communicates with each other.
Further, a new trend system for tunnel furnace improves binder removal quality and efficiency, wherein tunnel furnace body 1's length is 7.5 ~ 8.5m, and evenly distributed on tunnel furnace body 1 is equidistant to three supply-air hole 13, and its spacing distance is 0.8 ~ 1.2m, and is close to spacing distance between supply-air hole 13 of feed inlet 11 one side and the feed inlet 11 is 1 ~ 1.5m under air regulation valve 8's effect, the amount of wind of controlling three new trend auxiliary pipelines 7 input tunnel furnace body 1 is 18 ~ 20m from a left side to the right side in proper order3/min、14～16m3Min and 8-10 m3/min。
Further, a new trend system for tunnel furnace improves binder removal quality and efficiency, wherein heating device in the tunnel furnace body 1 is electric heater unit or steam heating device, and conveyor in the tunnel furnace body 1 is high temperature resistant conveyor. In addition, the PLC controller 9 includes a processor and a plurality of control buttons.
In the practical application process, the existing tunnel furnace structure is adopted, only one fresh air input channel is provided, the ceramic tube needing glue discharging treatment is placed in the crucible 2, the glue discharging sintering treatment process comprises a first temperature rising stage, a second heat preservation stage, a third temperature rising stage, a fourth heat preservation stage and a fifth cooling stage, the glue discharging treatment comprises water discharging and additive decomposition, the temperature of the water discharging is about 400 ℃, the decomposition temperature of the additive is about 800 ℃, a curve chart formed in the specific glue discharging sintering process is shown in figure 2, T is the temperature, and T is the time. The specific process conditions are as follows: the glue is heated at constant temperature, the time of heating to the glue discharging temperature is 1.5h, after the glue is heated to 3.0h, fresh air is input, the air conveying time is 0.5h, then the temperature is raised, after the temperature is raised, the heat preservation and cooling treatment is carried out, and the time of carrying out the glue discharging treatment is 11.5h in total.
Adopt, new trend system, owing to be equipped with three new trend input channel, its binder removal is handled and is also including first intensification stage, second heat preservation stage, third intensification stage, fourth heat preservation stage and fifth cooling stage, its binder removal is handled including moisture content is got rid of and the additive decomposes, wherein the temperature that moisture content was got rid of is about 400 ℃, and the additive decomposition temperature is about 800 ℃, the graph that sintering process formed is glued in concrete binder removal is shown in fig. 3, T is the temperature in the picture, T is the time. The specific process conditions are as follows: the glue removing method comprises the steps of heating at constant temperature, wherein the time of heating to the glue removing temperature is 1.0, keeping the temperature for 2.0 hours, inputting first fresh air, the air conveying time is 0.5 hour, heating, when the time reaches 3.5 hours and 5.0 hours in the heating process, inputting second fresh air and third fresh air, the heating time is 8 hours, carrying out heat preservation and cooling treatment after heating, and the total time for glue removing treatment is 14.5 hours. Therefore, although the glue discharging time is longer than that of the conventional treatment mode, the glue discharging effect is good, the qualification rate of products is improved, and the production cost is reduced.
Adopt new trend system, through adopting segment control new trend input mode, can make the additive in the shaping blank fully oxidize to decompose and get rid of, make the additive thoroughly get rid of, avoid making porcelain pottery product after the follow-up high temperature sintering problem that gas pocket or microcrack appear, thereby improve the outward appearance and the quality of porcelain pottery product, improve the qualification rate of product, reduction in production cost has simple structure, convenient operation is fit for using widely.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and those skilled in the art can make various modifications and changes, and any modifications, equivalent replacements, improvements, etc. made by using the present invention should be included in the protection scope of the present invention.
Claims (4)
1. The utility model provides a new trend system for tunnel furnace improves to arrange and glues quality and efficiency, including tunnel furnace body (1) and crucible (2), crucible (2) are used for depositing the ceramic pipe of treating the row of gluing the left side of tunnel furnace body (1) is equipped with feed inlet (11), and the right side is equipped with discharge gate (12), and be equipped with conveyor and heating device along its axial in the inner chamber of tunnel furnace body (1), heating device is used for providing heat for tunnel furnace body (1), conveyor be used for depositing crucible (2) of ceramic pipe carry extremely arrange in tunnel furnace body (1) and glue the processing, its characterized in that: the fresh air system comprises an air supply pipe (3), a filter (4), an air blower (5), a fresh air main pipeline (6), a fresh air auxiliary pipeline (7), an air volume adjusting valve (8) and a PLC (9), wherein a plurality of air supply holes (13) matched with the fresh air auxiliary pipeline (7) are formed in the tunnel furnace body (1), the air supply holes (13) are formed in the top of the tunnel furnace body (1) and are communicated with an inner cavity of the tunnel furnace body (1), the outlet end of the fresh air auxiliary pipeline (7) is hermetically connected with the tunnel furnace body (1) through the air supply holes (13), the inlet end of the fresh air auxiliary pipeline (7) is communicated with the fresh air main pipeline (6), the air volume adjusting valve (8) is arranged in the fresh air auxiliary pipeline (7), the fresh air main pipeline (6) is communicated with the outlet end of the filter (4) through the air blower (5), the inlet end of the filter (4) is communicated with the blast pipe (3), and the conveying device, the heating device and the air quantity regulating valve (8) are electrically connected with a PLC (programmable logic controller) controller (9) arranged on the outer side of the tunnel furnace body (1).
2. The fresh air system for the tunnel furnace to improve the glue discharging quality and efficiency as claimed in claim 1, wherein: the fresh air auxiliary pipelines (7) are three, the air supply holes (13) are three, the three air supply holes (13) are all arranged on the tunnel furnace body (1) close to one side of the feed port (11), and the inlet ends of the three fresh air auxiliary pipelines (7) are communicated with the fresh air main pipeline (6) in a parallel connection mode.
3. The fresh air system for the tunnel furnace to improve the glue discharging quality and efficiency as claimed in claim 2, wherein: the length of the tunnel furnace body (1) is 7.5-8.5 m, three air supply holes (13) are uniformly arranged on the tunnel furnace body (1) at equal intervals, the interval distance is 0.8-1.2 m, the interval distance between the air supply hole (13) close to one side of the feed port (11) and the feed port (11) is 1-1.5 m, and under the action of the air volume adjusting valve (8), the air volume input into the tunnel furnace body (1) by the three fresh air auxiliary pipelines (7) is sequentially controlled to be 18-20 m from left to right3/min、14～16m3Min and 8-10 m3/min。
4. The fresh air system for the tunnel furnace to improve the glue discharging quality and efficiency as claimed in claim 1, wherein: the heating device in the tunnel furnace body (1) is an electric heating device or a steam heating device, and the conveying device in the tunnel furnace body (1) is a high-temperature-resistant conveying device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120637470.4U CN214470011U (en) | 2021-03-30 | 2021-03-30 | A new trend system that is used for tunnel furnace to improve binder removal quality and efficiency |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120637470.4U CN214470011U (en) | 2021-03-30 | 2021-03-30 | A new trend system that is used for tunnel furnace to improve binder removal quality and efficiency |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214470011U true CN214470011U (en) | 2021-10-22 |
Family
ID=78175834
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120637470.4U Active CN214470011U (en) | 2021-03-30 | 2021-03-30 | A new trend system that is used for tunnel furnace to improve binder removal quality and efficiency |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214470011U (en) |
-
2021
- 2021-03-30 CN CN202120637470.4U patent/CN214470011U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US6048199A (en) | Tunnel kiln for firing ceramic honeycomb bodies | |
| CN214470011U (en) | A new trend system that is used for tunnel furnace to improve binder removal quality and efficiency | |
| CN108662901A (en) | Sintering kiln for ceramics | |
| CN205897832U (en) | Reverse -flow no flue baked brick tunnel cave | |
| CN208282602U (en) | Kiln for ceramics injection note semi-finished product de-waxing | |
| CN112629247B (en) | Lithium battery negative electrode material roasting furnace and roasting method | |
| CN107445630B (en) | Sintering method of ferrite magnetic core with weight of more than 450g | |
| CN110057192A (en) | A kind of large scale push plate nitrogen atmosphere protection sintering furnace | |
| CN203895545U (en) | Lithium ion battery electrode active material preparation device | |
| CN211854862U (en) | Roller kiln process atmosphere adjusting system | |
| CN214842409U (en) | Sintering device for preparing high-permeability manganese-zinc ferrite | |
| CN203798152U (en) | Negative pressure pump system of elevator furnace | |
| CN2386048Y (en) | Out-layer auxiliary heat controllable cooling ion bombardment heat treatment furnace | |
| CN208567512U (en) | Sintering kiln for ceramics | |
| CN208887383U (en) | A kind of continous way metallization furnace atmosphere stabilizing adjusting device | |
| CN208671664U (en) | A kind of box electric kiln may filter that furnace gas | |
| CN112629252A (en) | Kiln | |
| CN218627797U (en) | Firing furnace for temperature-controllable ceramic production | |
| CN110715551A (en) | Ventilation device and method for preparing and calcining SCR (Selective catalytic reduction) honeycomb denitration catalyst | |
| CN207540358U (en) | A kind of ceramic ring sintering furnace | |
| CN205258573U (en) | High -efficient gas reducing furnace | |
| CN215598056U (en) | Two-way atmosphere silicon nitride sintering furnace | |
| CN112611233B (en) | Device and method for sintering and coke discharging of lithium battery cathode material | |
| CN211497717U (en) | Single-vacuum roller bottom type protective atmosphere heat treatment equipment | |
| CN204324895U (en) | A kind of lithium ion battery graphite cathode material high temp sintering device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |