CN111322861A - Embedded tunnel kiln process arrangement - Google Patents
Embedded tunnel kiln process arrangement Download PDFInfo
- Publication number
- CN111322861A CN111322861A CN202010271869.5A CN202010271869A CN111322861A CN 111322861 A CN111322861 A CN 111322861A CN 202010271869 A CN202010271869 A CN 202010271869A CN 111322861 A CN111322861 A CN 111322861A
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- China
- Prior art keywords
- tunnel kiln
- embedded tunnel
- temperature
- drying
- waste gas
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- 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.)
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B9/00—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity
- F27B9/02—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity of multiple-track type; of multiple-chamber type; Combinations of furnaces
- F27B9/028—Multi-chamber type furnaces
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D17/00—Arrangements for using waste heat; Arrangements for using, or disposing of, waste gases
- F27D17/004—Systems for reclaiming waste heat
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- 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
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The embedded tunnel kiln process arrangement utilizes the siphon effect (also called as a smoke window effect) of hot gas to guide and utilize waste heat and discharge waste gas generated in the processing process of a product; and then the flexible combination of the modular equipment, the strong independence of the modular equipment and the independent processing environment of the modular equipment are utilized, hot air is introduced into a place needing heat according to the requirement for utilization, and the hot air is discharged after being treated.
Description
Technical Field
The invention relates to the field of municipal construction waste solid waste treatment, the field of novel building materials and the field of ceramics.
Background
The tunnel kiln (including the movable kiln) arranged by the traditional process can not be changed greatly after being arranged according to the production process requirements of products, and at the moment, if the market supply and demand change, the situation that the supply and demand need to adjust the production process to meet the market demand is almost impossible is realized, and the traditional process arrangement has the following defects:
1. the kiln arranged by the traditional process has large volume, the problem caused by the large volume is that the occupied area is large and the flexibility of equipment process adjustment is poor, once the kiln parameters and the technological equipment are determined according to the requirements of the products in the early stage, the kiln parameters and the technological equipment can not be changed, otherwise, only reconstruction is carried out;
2. the construction period of the traditional tunnel kiln process arrangement is long, the construction time without calculating the foundation is generally 90 days (the module assembly structure is 60 days), and the construction period of the old brick tunnel kiln is longer and is generally more than half a year;
3. due to the limitation of the traditional process arrangement, a large fan (more than 150 KW) is needed in the traditional tunnel kiln (including the mobile kiln) to discharge waste gas generated in the production process of the kiln and provide oxygen for high-temperature firing, the production mode can bring about energy consumption, and the fan can generate noise during operation, so that noise pollution is inevitably generated, and the problem that noise disturbs people is brought about;
4. due to the limitation of the traditional process arrangement and technology, the stacking kiln has high density (high gas resistance), long gas channel, irregular gas channel shape, poor gas channel sealing and the like, so that the parameters such as wind pressure, flow, power and the like of a fan are several times larger than the real requirement, the overall power consumption of the waste gas treatment equipment for rear-stage desulfurization, dust removal, whitening and the like is higher, the overall investment of the project is overhigh, the use cost in the later stage is increased, and the energy is greatly wasted;
5. because of the influence of the traditional process arrangement, the distance between the devices is large, and because of the special process requirements of some devices, the foundation construction amount under the whole process arrangement is very large, which brings a series of problems of increased project investment, prolonged construction period and the like;
6. the heat utilization is low: the traditional process arrangement can only utilize smoke heat generated in the roasting process to dry products, and the heat released in the cooling process of the products is rarely utilized, because the interior of a kiln in the traditional process is straight-through, and when excessive waste heat is extracted from the cooling section, the fire traveling direction of the roasting section can be influenced;
7. the exhaust emission does not reach the standard: in the traditional process arrangement, the kiln is straight-through, so that waste heat and smoke heat are mixed for use, and the waste heat is rich in oxygen because of not being combusted, is mixed into smoke gas to dry products and is discharged in a centralized manner; in addition, in order to ensure that the temperature of the kiln drying product is not ultrahigh in the traditional process arrangement, a certain amount of air outside the kiln needs to be mixed for temperature control, and finally the product is discharged together with the flue gas, so that the two main factors cause the oxygen content to exceed the standard due to the fact that a large amount of oxygen is mixed in the discharged flue gas.
Disclosure of Invention
In view of the above, the invention aims to provide an embedded tunnel kiln arrangement process, which is quickly and efficiently built by using flexible module type equipment combination and matching with a reasonable setting mode and a waste gas and waste heat collecting device, and not only meets the production process requirements of products, but also meets the production line of real environmental protection requirements;
the present invention solves the above-mentioned process arrangement problem by the following process arrangement:
an embedded tunnel kiln process arrangement comprises a No. 1 drying embedded tunnel kiln, a No. 2 drying embedded tunnel kiln, a No. 1 high temperature embedded tunnel kiln, a No. 2 high temperature embedded tunnel kiln, a waste gas collecting branch pipe, a waste gas discharging pipe, a waste gas collector, a waste gas treatment tower, a waste heat collecting branch pipe, a water vapor discharging pipe, a water vapor collector and a water vapor treatment tower, wherein the embedded tunnel kiln arrangement process comprises the steps of feeding a product to be processed into the No. 1 drying embedded tunnel kiln for low temperature drying processing, feeding the product after low temperature drying into the No. 2 drying embedded tunnel kiln for high temperature drying processing, feeding the product after high temperature drying into the No. 1 high temperature embedded tunnel kiln for preheating and high temperature processing, feeding the product after high temperature processing into the No. 2 high temperature embedded tunnel kiln for heat preservation cooling processing, taking the product out of the kiln after heat preservation and cooling treatment to obtain a finished product; the high-temperature embedded tunnel kiln 1 is used for producing high-temperature waste gas during high-temperature processing of products, the high-temperature waste gas is collected by a waste gas collecting branch pipe and sent into the embedded tunnel kiln 2 for high-temperature drying processing of the products, then the waste gas is sent into a waste gas collector through a waste gas discharge pipe, and then the waste gas is sent into a waste gas treatment tower through the waste gas collector for treatment and then is discharged outside; the heat released by the product subjected to heat preservation and cooling processing in the No. 2 high-temperature embedded tunnel kiln is collected by the waste heat collecting branch pipe, sent into the No. 1 drying embedded tunnel kiln to be subjected to low-temperature drying processing on the product, sent into the water vapor collector through the water vapor discharge pipe, sent into the water vapor treatment tower through the water vapor collector to be treated and then discharged outside;
preferably, the No. 1 drying embedded tunnel kiln is connected with the No. 2 drying embedded tunnel kiln end to end;
preferably, the No. 1 high-temperature embedded tunnel kiln is connected with the No. 2 high-temperature embedded tunnel kiln end to end;
preferably, the No. 1 high-temperature embedded tunnel kiln is connected with a waste gas collecting branch pipe;
preferably, the waste gas collecting branch pipe is connected with a No. 2 drying embedded tunnel kiln;
preferably, the 2# drying embedded tunnel kiln is connected with a waste gas discharge pipe;
preferably, the exhaust gas discharge pipe is connected to an exhaust gas collector;
preferably, the waste gas collector is connected with a waste gas treatment tower;
preferably, the No. 2 high-temperature embedded tunnel kiln is connected with a waste heat collecting branch pipe;
preferably, the waste heat collecting branch pipe is connected with a No. 1 drying embedded tunnel kiln;
preferably, the No. 1 drying embedded tunnel kiln is connected with a water vapor discharge pipe;
preferably, the water vapor discharge pipe is connected to a water vapor collector;
preferably, the water vapor collector is connected with the water vapor treatment tower;
the invention has the beneficial effects that: the invention provides a process arrangement method, which can independently process the products in each unit device by utilizing the characteristics that the modular devices under the process arrangement have small volume and strong independence and the connection between the devices is combined and spliced, thus being convenient to achieve different process requirements of different process stages of the products and even being capable of carrying out collinear processing on different products with different process requirements by simple matching and combination; because the finished equipment is assembled and installed on site, the installation speed is high, and other processing is not needed on site, so that the installation and debugging time can be greatly reduced; besides the basic installation foundation (only flat ground with certain bearing capacity is met), the process arrangement does not have other foundation construction requirements, so that the investment of capital and the foundation construction period can be greatly reduced; because the devices are relatively independent, the exhaust gas of the devices is relatively independent, so that the exhaust gas can be conveniently collected in a subarea manner and then respectively discharged through the free lap joint of the exhaust gas pipelines, the national environmental protection emission requirement can be easily met, and meanwhile, because the exhaust gas is independently discharged, the real exhaust gas quantity is greatly reduced, and the power consumption of the rear-stage exhaust gas treatment device is greatly reduced; the devices are relatively independent, so that the waste heat can be conveniently and completely collected, and the adverse effect on the processing of products in other process sections can be avoided; because the hot gas siphon effect (also known as chimney effect and pressure difference effect) is adopted to naturally discharge the waste gas, the smoke exhaust fan is omitted, the energy consumption is greatly reduced, the noise pollution is eliminated, and the product competitiveness is improved.
Drawings
Fig. 1 is a schematic plan view of an embedded tunnel kiln process arrangement.
Detailed Description
The invention is described in detail below with reference to the accompanying drawings:
as shown in fig. 1:
an embedded tunnel kiln process arrangement comprises a No. 1 drying embedded tunnel kiln (1), a No. 2 drying embedded tunnel kiln (2), a No. 1 high-temperature embedded tunnel kiln (3), a No. 2 high-temperature embedded tunnel kiln (4), a waste gas collecting branch pipe (5), a waste gas discharge pipe (6), a waste gas collector (7), a waste gas treatment tower (8), a waste heat collecting branch pipe (9), a water vapor discharge pipe (10), a water vapor collector (11) and a water vapor treatment tower (12), wherein the embedded tunnel kiln arrangement process comprises the steps of feeding a product to be processed into the No. 1 drying embedded tunnel kiln (1) for low-temperature drying processing, feeding the product after low-temperature drying into the No. 2 drying embedded tunnel kiln (2) for high-temperature drying processing, feeding the product after high-temperature drying into the No. 1 high-temperature embedded tunnel kiln (3) for preheating and high-temperature processing, the product after high-temperature processing enters a No. 2 high-temperature embedded tunnel kiln (4) for heat preservation and cooling treatment, and the product after heat preservation and cooling treatment is taken out of the kiln to be a finished product; the high-temperature embedded tunnel kiln 1 (3) generates high-temperature waste gas when a product is processed at a high temperature, the high-temperature waste gas is collected by a waste gas collecting branch pipe 5 and sent to the embedded tunnel kiln 2 for drying the product at a high temperature, the high-temperature waste gas is sent to a waste gas collector 7 through a waste gas discharge pipe 6, and the waste gas is sent to a waste gas treatment tower 8 through the waste gas collector 7 for treatment and then is discharged outside; the heat released by the product subjected to heat preservation and cooling processing in the No. 2 high-temperature embedded tunnel kiln (4) is collected by a waste heat collecting branch pipe (9), sent into the No. 1 drying embedded tunnel kiln (1) to be dried and processed at low temperature, sent into a water vapor collector (11) through a water vapor discharge pipe (10), sent into a water vapor treatment tower (12) through the water vapor collector (11) to be treated and then discharged outside;
preferably, the No. 1 drying embedded tunnel kiln (1) and the No. 2 drying embedded tunnel kiln (2) are connected end to end;
preferably, the No. 1 high-temperature embedded tunnel kiln (3) and the No. 2 high-temperature embedded tunnel kiln (4) are connected end to end;
preferably, the No. 1 high-temperature embedded tunnel kiln (3) is connected with a waste gas collecting branch pipe (5);
preferably, the waste gas collecting branch pipe (5) is connected with a No. 2 drying embedded tunnel kiln (2);
preferably, the No. 2 drying embedded tunnel kiln (2) is connected with an exhaust gas discharge pipe (6);
preferably, the exhaust gas outlet pipe (6) is connected to an exhaust gas collector (7);
preferably, the waste gas collector (7) is connected with a waste gas treatment tower (8);
preferably, the No. 2 high-temperature embedded tunnel kiln (4) is connected with a waste heat collecting branch pipe (9);
preferably, the waste heat collecting branch pipe (9) is connected with a No. 1 drying embedded tunnel kiln (1);
preferably, the No. 1 drying embedded tunnel kiln (1) is connected with a water vapor discharge pipe (10);
preferably, the steam discharge pipe (10) is connected to a steam collector (11);
preferably, the water vapor collector (11) is connected with a water vapor treatment tower (12);
the working principle is as follows:
the scheme utilizes the siphon effect (also called as smoke window effect) of hot gas to guide and utilize waste heat and discharge waste gas generated in the processing process of the product; the flexible combination of the modular equipment, the strong independence of the modular equipment and the independent processing environment of the modular equipment are utilized, hot air is introduced into a place needing heat according to the requirement for utilization, and then the hot air is discharged after treatment;
the present invention is not limited to the above embodiments, and other process arrangements obtained by using the same or similar structures as the above embodiments of the present invention are within the scope of the present invention.
Claims (13)
1. An embedded tunnel kiln process arrangement is characterized in that: the process comprises a No. 1 drying embedded tunnel kiln (1), a No. 2 drying embedded tunnel kiln (2), a No. 1 high-temperature embedded tunnel kiln (3), a No. 2 high-temperature embedded tunnel kiln (4), a waste gas collecting branch pipe (5), a waste gas discharge pipe (6), a waste gas collector (7), a waste gas treatment tower (8), a waste heat collecting branch pipe (9), a water vapor discharge pipe (10), a water vapor collector (11) and a water vapor treatment tower (12), wherein the embedded tunnel kiln is arranged in the way that a product to be processed enters the No. 1 drying embedded tunnel kiln (1) for low-temperature drying processing, the product after low-temperature drying enters the No. 2 drying embedded tunnel kiln (2) for high-temperature drying processing, the product after high-temperature drying enters the No. 1 high-temperature embedded tunnel kiln (3) for pre-temperature heating and high-temperature processing, and the product after high-temperature processing enters the No. 2 high-temperature embedded tunnel kiln (4) for Cooling, namely taking the product subjected to heat preservation and cooling treatment out of a kiln to obtain a finished product; high-temperature waste gas generated when a product is processed at high temperature by the No. 1 high-temperature embedded tunnel kiln (3) is collected by the waste gas collecting branch pipe (5) and sent to the No. 2 drying embedded tunnel kiln (2) for high-temperature drying treatment of the product, then sent to the waste gas collector (7) through the waste gas discharge pipe (6), and then sent to the waste gas treatment tower (8) through the waste gas collector (7) for treatment and then discharged outside; the heat released by the product subjected to heat preservation and cooling processing in the 2# high-temperature embedded tunnel kiln (4) is collected by the waste heat collecting branch pipe (9) and sent into the 1# drying embedded tunnel kiln (1) to perform low-temperature drying processing on the product, then sent into the water vapor collector (11) through the water vapor discharge pipe (10), and then sent into the water vapor treatment tower (12) through the water vapor collector (11) to be treated and then discharged outside.
2. The embedded tunnel kiln process arrangement of claim 1, wherein: and the No. 1 drying embedded tunnel kiln (1) and the No. 2 drying embedded tunnel kiln (2) are connected end to end.
3. The embedded tunnel kiln process arrangement of claim 1, wherein: and the No. 1 high-temperature embedded tunnel kiln (3) and the No. 2 high-temperature embedded tunnel kiln (4) are connected end to end.
4. The embedded tunnel kiln process arrangement of claim 1, wherein: the No. 1 high-temperature embedded tunnel kiln (3) is connected with a waste gas collecting branch pipe (5).
5. The embedded tunnel kiln process arrangement of claim 4, wherein: and the waste gas collecting branch pipe (5) is connected with the 2# drying embedded tunnel kiln (2).
6. The embedded tunnel kiln process arrangement of claim 5, wherein: and the No. 2 drying embedded tunnel kiln (2) is connected with an exhaust gas discharge pipe (6).
7. The embedded tunnel kiln process arrangement of claim 6, wherein: the waste gas discharge pipe (6) is connected to a waste gas collector (7).
8. The embedded tunnel kiln process arrangement of claim 7, wherein: the waste gas collector (7) is connected with a waste gas treatment tower (8).
9. The embedded tunnel kiln process arrangement of claim 1, wherein: the No. 2 high-temperature embedded tunnel kiln (4) is connected with a waste heat collecting branch pipe (9).
10. The embedded tunnel kiln process arrangement of claim 9, wherein: and the waste heat collecting branch pipe (9) is connected with the No. 1 drying embedded tunnel kiln (1).
11. The embedded tunnel kiln process arrangement of claim 10, wherein: the No. 1 drying embedded tunnel kiln (1) is connected with a water vapor discharge pipe (10).
12. The embedded tunnel kiln process arrangement of claim 11, wherein: the water vapor discharge pipe (10) is connected to a water vapor collector (11).
13. The embedded tunnel kiln process arrangement of claim 12, wherein: the water vapor collector (11) is connected with the water vapor treatment tower (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010271869.5A CN111322861A (en) | 2020-04-09 | 2020-04-09 | Embedded tunnel kiln process arrangement |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010271869.5A CN111322861A (en) | 2020-04-09 | 2020-04-09 | Embedded tunnel kiln process arrangement |
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| Publication Number | Publication Date |
|---|---|
| CN111322861A true CN111322861A (en) | 2020-06-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010271869.5A Withdrawn CN111322861A (en) | 2020-04-09 | 2020-04-09 | Embedded tunnel kiln process arrangement |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2619743Y (en) * | 2003-05-28 | 2004-06-09 | 长沙威灵科技发展有限公司 | Gas type horizontal Zn powder furnace |
| DE102011054640A1 (en) * | 2011-10-20 | 2013-04-25 | Hans Lingl Anlagenbau Und Verfahrenstechnik Gmbh & Co. Kg | Warm-up procedure and kiln |
| CN106766877A (en) * | 2017-02-09 | 2017-05-31 | 微山县大卫新型建材有限公司 | A kind of tunnel kiln smoke-gas environment-protective circulating processing system |
| CN109539747A (en) * | 2018-11-30 | 2019-03-29 | 吴祥初 | A kind of technique that energy-saving tunnel-kiln type dries chamber system and its multiple dry code firing is utilized to make brick |
| CN208983854U (en) * | 2018-08-23 | 2019-06-14 | 佛山市南海区永恒特种瓷棒厂 | A kind of compound kiln of splitlevel energy conservation |
| CN209181508U (en) * | 2018-10-19 | 2019-07-30 | 邯郸职业技术学院 | A kind of environment-friendly type tunnel oven |
| CN110108123A (en) * | 2019-04-08 | 2019-08-09 | 厦门理工学院 | A kind of kiln temperature-pressure decoupling control method, device, equipment and system |
| CN110285670A (en) * | 2019-07-03 | 2019-09-27 | 曾俩福 | The tunnel oven and control method of structure are utilized with slow cooling section efficient heat energy |
-
2020
- 2020-04-09 CN CN202010271869.5A patent/CN111322861A/en not_active Withdrawn
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2619743Y (en) * | 2003-05-28 | 2004-06-09 | 长沙威灵科技发展有限公司 | Gas type horizontal Zn powder furnace |
| DE102011054640A1 (en) * | 2011-10-20 | 2013-04-25 | Hans Lingl Anlagenbau Und Verfahrenstechnik Gmbh & Co. Kg | Warm-up procedure and kiln |
| CN106766877A (en) * | 2017-02-09 | 2017-05-31 | 微山县大卫新型建材有限公司 | A kind of tunnel kiln smoke-gas environment-protective circulating processing system |
| CN208983854U (en) * | 2018-08-23 | 2019-06-14 | 佛山市南海区永恒特种瓷棒厂 | A kind of compound kiln of splitlevel energy conservation |
| CN209181508U (en) * | 2018-10-19 | 2019-07-30 | 邯郸职业技术学院 | A kind of environment-friendly type tunnel oven |
| CN109539747A (en) * | 2018-11-30 | 2019-03-29 | 吴祥初 | A kind of technique that energy-saving tunnel-kiln type dries chamber system and its multiple dry code firing is utilized to make brick |
| CN110108123A (en) * | 2019-04-08 | 2019-08-09 | 厦门理工学院 | A kind of kiln temperature-pressure decoupling control method, device, equipment and system |
| CN110285670A (en) * | 2019-07-03 | 2019-09-27 | 曾俩福 | The tunnel oven and control method of structure are utilized with slow cooling section efficient heat energy |
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| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20200623 |
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| WW01 | Invention patent application withdrawn after publication |