CN205448672U - Bottom construction of marching type kiln - Google Patents
Bottom construction of marching type kiln Download PDFInfo
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- CN205448672U CN205448672U CN201521073716.0U CN201521073716U CN205448672U CN 205448672 U CN205448672 U CN 205448672U CN 201521073716 U CN201521073716 U CN 201521073716U CN 205448672 U CN205448672 U CN 205448672U
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- flue gas
- exhaust gases
- heat
- gases passes
- bottom construction
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Abstract
The utility model discloses a bottom construction of marching type kiln, including the fixed beam with at the bottom of removing roof beam and heat resistant furnace. Wherein, including setting up the heat -resisting surface course in the inboard at the bottom of the heat resistant furnace, the protective layer and the setting that set up in the outside are in flue gas passageway between heat -resisting surface course and the protective layer, the flue gas passageway is two passageways that the symmetry set up, and the diameter of each passageway is 0.5 -0.8m, the both ends opening of flue gas passageway sets up respectively the soaking zone and the stove rear of marching type kiln, the predetermined interval of every still is provided with flow control valve in the flue gas passageway, flow control valve will flue gas passage partition is a plurality of sections and controls the unit discharge of each section. Above -mentioned structure utilizes the lower flue gas of temperature to realize the cooling to the heating section of higher temperature, has avoided traditional cooling system to take away the interior heat of too much heating furnace or result in the great problem of excess air factor, is favorable to improving the thermal efficiency that the stove was added to the marching type.
Description
Technical field
This utility model relates to technical field of industrial furnaces, particularly relates to the bottom construction of a kind of step-by-step movement kiln.
Background technology
Industrial furnace or Industrial Stoves are the industrial equipments utilizing the burning of fuel to provide heat for work pieces process.Along with the development of China's industrial level, the quantity of industry cellar for storing things stove also presents fulminant growth, and the energy of consumption occupies the biggest ratio in whole nation industry total energy consumption.
Conventional Industrial Stoves can be divided into cycle stove and continuous furnace according to thermal regulation.Periodic stove temperature within the different processing periods controls to differ, and whole heating process produces in the way of periodic, includes various bell furnace, shaft furnace etc..Continuous furnace is then generally made up of several parts such as preheating section, bringing-up section and soaking zones.The temperature of each part keeps constant, and workpiece passes sequentially through various piece and is processed, and has been typically include walking beam furnace, and push-down adds stove etc..
But in existing walking beam furnace, the general method all using unilateral heating, this method need not arrange chiller at furnace bottom, only arranges axial nozzle and heats workpiece.The method of above-mentioned unilateral heating is only capable of processing the workpiece of thinner thickness.
And in order to realize the process of the workpiece bigger to thickness, walking beam furnace also has the employing end face similar with general heating furnace and bottom surface heating mode, furnace bottom uses hollow out design, it is achieved the lateral heating to workpiece.But aforesaid way needs to arrange the normal operation with guarantee heating furnace of the more cooling pipe, fixing beam and the operating of trave lling girder for furnace bottom, and the thermal efficiency there will be significantly decline.
Therefore, prior art need development.
Summary of the invention
In place of above-mentioned the deficiencies in the prior art, the purpose of this utility model is to provide the bottom construction of a kind of step-by-step movement kiln, it is intended to solves step-by-step movement kiln bottom construction in prior art and is not convenient to use, the problem reducing thermal efficiency of heating furnace.
In order to achieve the above object, this utility model takes techniques below scheme:
A kind of bottom construction of step-by-step movement kiln; including at the bottom of fixing beam and trave lling girder and heat resistant furnace; wherein, include the resistance to hot-face layer being arranged on inner side at the bottom of described heat resistant furnace, be arranged on the protective layer in outside and be arranged on the exhaust gases passes between described resistance to hot-face layer and protective layer；
Described exhaust gases passes is symmetrically arranged two passes, a diameter of 0.5-0.8m of each passage；The both ends open of described exhaust gases passes is separately positioned on soaking zone and the stove rear of described step-by-step movement kiln；
Being additionally provided with flow control valve every predetermined space in described exhaust gases passes, exhaust gases passes described in described flow control valve goalkeeper is divided into some sections and controls the specific discharge of each section.
The bottom construction of described step-by-step movement kiln, wherein, described bottom construction also includes for supporting described fixing beam and the standpipe of trave lling girder；The cooling water accommodating layer of closing it is provided with in described standpipe.
The bottom construction of described step-by-step movement kiln, wherein, described cooling water accommodating layer is provided with heat exchanger with the one end being connected at the bottom of heat resistant furnace；In cooling water, the heat of storage is distributed by the opposite side of described heat exchanger.
The bottom construction of described step-by-step movement kiln, wherein, described exhaust gases passes is spirally arranged, and the distance between each spiral is set to 25-30cm.
Beneficial effect: the bottom construction of a kind of step-by-step movement kiln that this utility model provides, by arranging some exhaust gases passes in bottom construction, realize the flue gas recirculation between the bringing-up section of the multiple different temperatures of walking beam furnace, the flue gas utilizing temperature relatively low realizes the cooling of the bringing-up section to higher temperature, avoid tradition cooling system take away too much heating furnace heat or cause the problem that excess air coefficient is bigger, be conducive to improving step-by-step movement and add the thermal efficiency of stove.
Accompanying drawing explanation
Fig. 1 is the structural representation of the bottom construction of the step-by-step movement kiln of this utility model specific embodiment.
Fig. 2 is the vertical tube structure schematic diagram of the bottom construction of this utility model specific embodiment.
Detailed description of the invention
This utility model provides the bottom construction of a kind of step-by-step movement kiln.For making the purpose of this utility model, technical scheme and effect clearer, clear and definite, the present invention is described in more detail for the embodiment that develops simultaneously referring to the drawings.Should be appreciated that specific embodiment described herein, only in order to explain this utility model, is not used to limit this utility model.
As it is shown in figure 1, be the bottom construction of a kind of step-by-step movement kiln of this utility model specific embodiment.Described bottom construction includes: at the bottom of fixing beam 100 and trave lling girder 200 and heat resistant furnace 300.Wherein, at the bottom of described heat resistant furnace, 300 include the resistance to hot-face layer 310 being arranged on inner side, are arranged on the protective layer 320 in outside and are arranged on the exhaust gases passes 330 between described resistance to hot-face layer and protective layer.
Described exhaust gases passes 330 is symmetrically arranged two passes, a diameter of 0.5-0.8m of each passage.The both ends open of described exhaust gases passes 330 is separately positioned on soaking zone and the stove rear of described step-by-step movement kiln.By the way, it is achieved the flue gas recirculation between soaking zone and stove rear, the heat distribution of each section in balance heating furnace.High-temperature flue gas after completing cooling after such as being exported by heat by various heat exchanger by any suitable UTILIZATION OF VESIDUAL HEAT IN mode, can be reentered in described exhaust gases passes and be circulated use.
Being additionally provided with flow control valve every predetermined space in described exhaust gases passes 330, exhaust gases passes described in described flow control valve goalkeeper is divided into some sections and controls the specific discharge of each section.By arranging flow control valve, cooling effect and the heat distribution of each section can be controlled, it is achieved the real-time adjustment to heating furnace.
In actual use, the flue gas in exhaust gases passes is promoted by the temperature difference between each section of walking beam furnace, it is not necessary to use the external function devices such as aerator.
Concrete, as in figure 2 it is shown, described bottom construction also includes the standpipe 400 for supporting described fixing beam and trave lling girder；The cooling water accommodating layer 410 of closing it is provided with in described standpipe.By arranging the above-mentioned standpipe with cooling water accommodating layer, can effectively improve heating furnace temperature capability, and the cooling water recycled is also beneficial to save energy consumption.
It is preferred that described cooling water accommodating layer is provided with heat exchanger 420 with the one end being connected at the bottom of heat resistant furnace；In cooling water, the heat of storage is distributed by the opposite side of described heat exchanger.That is cooling water storage heat can be taken away by the flue gas in exhaust gases passes.
More specifically, described exhaust gases passes 330 is spirally arranged, and the distance between each spiral is set to 25-30cm.It is also preferred that the left could be arranged to 28cm to keep the maximum stream flow of exhaust gases passes to meet demand.The exhaust gases passes of said structure is set, it is possible to prolongation flue gas, in the time of staying of each bringing-up section, sufficiently completes the process of heat exchange, is beneficial to realize more preferable cooling effect.
In sum, the bottom construction of a kind of step-by-step movement kiln, by arranging some exhaust gases passes in bottom construction, it is achieved the flue gas recirculation between the bringing-up section of the multiple different temperatures of walking beam furnace.Volume of air in system is without significant change, and the flue gas utilizing temperature relatively low realizes the cooling of the bringing-up section to higher temperature, avoid tradition cooling system take away too much heating furnace heat or cause the problem that excess air coefficient is bigger, be conducive to improving step-by-step movement and add the thermal efficiency of stove.
It is understandable that; for those of ordinary skills; in addition equivalent or change can be conceived according to the technical solution of the utility model and this utility model, and all these change or replace and all should belong to the scope of the claims appended by this utility model.
Claims (4)
1. the bottom construction of a step-by-step movement kiln; including at the bottom of fixing beam and trave lling girder and heat resistant furnace; it is characterized in that, include the resistance to hot-face layer being arranged on inner side at the bottom of described heat resistant furnace, be arranged on the protective layer in outside and be arranged on the exhaust gases passes between described resistance to hot-face layer and protective layer；
Described exhaust gases passes is symmetrically arranged two passes, a diameter of 0.5-0.8m of each passage；The both ends open of described exhaust gases passes is separately positioned on soaking zone and the stove rear of described step-by-step movement kiln；
Being additionally provided with flow control valve every predetermined space in described exhaust gases passes, exhaust gases passes described in described flow control valve goalkeeper is divided into some sections and controls the specific discharge of each section.
The bottom construction of step-by-step movement kiln the most according to claim 1, it is characterised in that described bottom construction also includes for supporting described fixing beam and the standpipe of trave lling girder；The cooling water accommodating layer of closing it is provided with in described standpipe.
The bottom construction of step-by-step movement kiln the most according to claim 2, it is characterised in that described cooling water accommodating layer is provided with heat exchanger with the one end being connected at the bottom of heat resistant furnace；In cooling water, the heat of storage is distributed by the opposite side of described heat exchanger.
The bottom construction of step-by-step movement kiln the most according to claim 1, it is characterised in that described exhaust gases passes is spirally arranged, the distance between each spiral is set to 25-30cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521073716.0U CN205448672U (en) | 2015-12-21 | 2015-12-21 | Bottom construction of marching type kiln |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521073716.0U CN205448672U (en) | 2015-12-21 | 2015-12-21 | Bottom construction of marching type kiln |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205448672U true CN205448672U (en) | 2016-08-10 |
Family
ID=56585003
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521073716.0U Expired - Fee Related CN205448672U (en) | 2015-12-21 | 2015-12-21 | Bottom construction of marching type kiln |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205448672U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112414122A (en) * | 2020-09-30 | 2021-02-26 | 江苏联峰能源装备有限公司 | Heating process for improving heating capacity of large-rod walking beam type furnace |
-
2015
- 2015-12-21 CN CN201521073716.0U patent/CN205448672U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112414122A (en) * | 2020-09-30 | 2021-02-26 | 江苏联峰能源装备有限公司 | Heating process for improving heating capacity of large-rod walking beam type furnace |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160810 Termination date: 20181221 |