CN102589309A - Energy-saving process and energy-saving device for utilization of kiln waste - Google Patents
Energy-saving process and energy-saving device for utilization of kiln waste Download PDFInfo
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- CN102589309A CN102589309A CN2012100839559A CN201210083955A CN102589309A CN 102589309 A CN102589309 A CN 102589309A CN 2012100839559 A CN2012100839559 A CN 2012100839559A CN 201210083955 A CN201210083955 A CN 201210083955A CN 102589309 A CN102589309 A CN 102589309A
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- combustion
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- collecting tube
- pipeline
- quench zone
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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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/34—Indirect CO2mitigation, i.e. by acting on non CO2directly related matters of the process, e.g. pre-heating or heat recovery
Abstract
The invention belongs to the technical field of ceramic industrial kilns, and particularly relates to an energy-saving process and an energy-saving device for utilization of kiln waste. The process includes steps: firstly, heat exchange, namely using a quench fan to send cold air into a pipeline of a kiln quench zone, and allowing the cold air passing through the pipeline of the quench zone to exchange heat with the quench zone; and secondly, heat utilization, namely mixing acquired hot air with air conveyed by a combustion fan into a combustion pipeline to raise the temperature of the combustion air to 600-800 DEG C. The energy-saving process and the energy-saving device for utilization of kiln waste have the advantages that the cold air is sent into the pipeline for heat exchange with the quench zone and then recycled, and the cold air only flows in the pipeline with no direct reaction with the interior of the industrial kiln and the surfaces of bricks, so that damage of brick blank is avoided, and the bricks are safer, more reliable and more environment-friendly in use. Moreover, the quench zone can be effectively cooled while the temperature of the combustion zone is raised by raising the temperature and improving the oxygen content of the combustion air.
Description
Technical field
The present invention relates to a kind of using residual heat from kiln furnace and utilize energy saving technique and device, belong to ceramic industry kiln technical field.
Background technology
The ceramic industry kiln system generally comprises preheating section, combustion-supporting section, quench zone, slow cooling section and cold section eventually.The temperature-averaging of adobe when firing for combustion-supporting section can reach about 1150 ℃, behind the arrival quench zone, need temperature be reduced to about 280 ℃ at short notice, so the temperature difference about 800 ℃ just arranged, and the waste heat of this section can't make full use of, and causes the wasting of resources.The method of chilling is in the tradition kiln: on pipeline, offer aperture, cold wind is blown to the surface of adobe, to reach the purpose of fast cooling.This kind mode is because the distinguished and admirable effect of high speed cold can have stronger impulsive force to the surface of adobe, and because quench tube front and back blast inequality causes situation such as adobe cracking, rough surface easily.
Aspect the Industrial Stoves waste heat recovery, at present comparative maturity be with the slow cooling section or eventually cold section waste heat recycle, but the temperature difference of this part is lower, energy-saving effect is not obvious.At the device of quench zone recovery waste heat, the national patent of Miu Chuanyun application is arranged, application number is CN200910029508.3, name is called " waste heat recovery device of roller kiln ".This device is installed heat pump and pipeline above quench zone; Directly the hot blast in the kiln is siphoned away and sends into combustion-supporting section use, because it is hot blast temperature is high, very high to the technological requirement of heat pump; And the hot blast of output is taken pernicious gas and amounts of dust such as nitrogen oxide, sulfide out of; Not only the bad quality of brick is impacted, also environment is caused severe contamination, staff's health is damaged.
Summary of the invention
The technical problem that the present invention will solve is: provide a kind of method simple, compact conformation can improve the heat energy utilization rate, the protection environment, and can avoid causing the using residual heat from kiln furnace of damage to utilize energy saving technique and device to brick is bad.
The technical scheme that the present invention is adopted for its technical problem of solution is: described using residual heat from kiln furnace utilizes energy saving technique, it is characterized in that: comprise the steps:
(1) exchange heat: in the kiln quench zone, utilize the chilling blower fan in pipeline, to send into cold wind, cold wind through in the quench zone during pipeline with quench zone in heat exchange, gas temperature reduces in the quench zone, the gas temperature rising of pipeline;
(2) Btu utilization: the hot blast of acquisition mixes with the air that combustion fan is carried in combustion-supporting pipeline, and the temperature of combustion air is increased to 600 ℃～800 ℃.
Described using residual heat from kiln furnace utilizes energy saver, comprises combustion-supporting pipeline, it is characterized in that: the quench zone left and right side of kiln is distributed with intake stack and wind pipe; The end of intake stack connects the chilling blower fan; One end of wind pipe connects combustion-supporting pipeline, and the other end connects combustion fan, is distributed with thermal-collecting tube in the quench zone; The air inlet of thermal-collecting tube is connected with the intake stack of a side, and air outlet is connected with the wind pipe of opposite side.
In use, the chilling blower fan can provide cold air through intake stack; Combustion fan can be blown in combustion-supporting pipeline through wind pipe; During use, one group of thermal-collecting tube connects the intake stack and the wind pipe on right side in left side, and the arrangement that interlaces of the intake stack on another group thermal-collecting tube connection right side and the wind pipe in left side, two groups of thermal-collecting tubes can make the adobe surface catch a cold evenly; Because thermal-collecting tube is distributed in the quench zone of high temperature,, the cold wind temperature in the thermal-collecting tube is improved so the heat in the quench zone can reach in the thermal-collecting tube; Finally flow to combustion-supporting pipeline; Thereby reduce the temperature of quench zone, improve combustion-supporting section temperature, improved heat utilization ratio simultaneously; Changed the cooling method of directly blowing a cold wind over, thereby avoided the bad destruction of causing of brick at quench zone; Also changed directly the hot blast of quench zone has been introduced combustion-supporting section and improve the mode of combustion-supporting section temperature; Improved the oxygen content in the combustion air and avoided bringing harmful substance into combustion-supporting section, reduced the probability that harmful substance forms in the waste gas and can not cause environmental pollution and the injury of human body; In addition, thermal-collecting tube when distributing, can be in kiln the arranging respectively up and down of roller-way, improve exchange heat efficient, reach better effect.
Described thermal-collecting tube be divided into A to thermal-collecting tube and B to thermal-collecting tube, A is opposite with the wind direction of B in thermal-collecting tube to thermal-collecting tube, and A is spaced apart to thermal-collecting tube to thermal-collecting tube and B.Can be according to the difference of air intake direction; With thermal-collecting tube be divided into the opposite A of wind direction to thermal-collecting tube and B to thermal-collecting tube, during use, can A be connected right side intake stack and left side wind pipe to thermal-collecting tube; B connects left side intake stack and right side wind pipe to thermal-collecting tube; A is spaced apart to thermal-collecting tube to thermal-collecting tube and B, and two adjacent A can arrange a B to thermal-collecting tube, the raising heat exchange efficiency between thermal-collecting tube.
Described combustion-supporting pipeline is the high temperature resistant stainless steel pipeline, and the arranged outside thermal insulation layer.Can reduce the loss of heat in the process of heat air delivery.
Between described combustion fan and the wind pipe control valve is set; Be connected with subsequent use combustion fan between control valve and the combustion fan; Be connected with the chilling airduct between the intake stack of the left and right sides; Subsequent use chilling blower fan connects this chilling airduct through three-way pipe, between three-way pipe and the chilling airduct valve is set respectively.Between combustion fan and the wind pipe control valve is set, can controls the air quantity and the air supply velocity of the air-supply in wind pipe; Subsequent use combustion fan being set, can be when combustion fan need be safeguarded or quit work, equipment runs well, and does not influence production efficiency; The subsequent use chilling blower fan, chilling airduct and the valve that are provided with can continue transporting cold wind in intake stack, and can pass through valve regulated flow and flow velocity when the chilling blower fan quit work.
The invention has the beneficial effects as follows:
(1) adopts cold wind is sent in the pipeline method of carrying out exchange heat with quench zone; Cold wind is only flowed in pipeline; Not with Industrial Stoves inside and the directly effect of the bad surface of brick; Thereby can not cause any damage to adobe, and can not take any pernicious gas or impurity in the kiln out of yet, use more safe, reliable, environmentally friendly;
(2) cold wind that gets in the device in the thermal-collecting tube absorbs the heat in the quench zone, and the gas temperature in the thermal-collecting tube is improved, and is delivered to combustion-supporting section again; Can the temperature of combustion air be increased to about 600 ℃～800 ℃, fully improve heat utilization ratio, not only effectively reduce the temperature of quench zone; Also improved simultaneously combustion-supporting section temperature; And avoid the hot blast in the quench zone is directly caused combustion-supporting section, reduced the pollution of pernicious gas, and avoided the bad destruction of causing of brick to environment;
(3) on the basis that does not change the Industrial Stoves original structure, arrange pipeline at quench zone, simple and compact for structure, realize easily, reequip convenient, fast.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Fig. 2 is that the A of Fig. 1 right-of-center in political views's duct outlet and inlet structure is to sketch map.
Fig. 3 is the structural representation that thermal-collecting tube distributes among Fig. 1.
Among the figure: 1, right combustion-supporting pipeline 2, right wind pipe 3, right intake stack 4, A are to thermal-collecting tube 5, chilling airduct 6, right chilling blower fan 7, valve 8, control valve 9, subsequent use combustion fan 10, combustion fan 11, subsequent use chilling blower fan 12, three-way pipe 13, left chilling blower fan 14, left intake stack 15, B roller-way in thermal-collecting tube 16, left wind pipe 17, left combustion-supporting pipeline 18, kiln.
The specific embodiment
Below in conjunction with accompanying drawing the present invention is done and to further describe:
Like Fig. 1～shown in Figure 3; Using residual heat from kiln furnace of the present invention utilizes energy saver; Comprise left combustion-supporting pipeline 17 and right combustion-supporting pipeline 1; Be furnished with left intake stack 14, left wind pipe 16, right intake stack 3 and right wind pipe 2 in the quench zone of kiln, and be distributed with thermal-collecting tube between intake stack and the wind pipe.Wherein, A connects right intake stack 3 to the air inlet of thermal-collecting tube 4, and air outlet connects left wind pipe 16, and an end of right intake stack 3 connects right chilling blower fan 6, and an end of left wind pipe 16 connects combustion fan 10, and the other end connects left combustion-supporting pipeline 17.B connects left intake stack 14 to the air inlet of thermal-collecting tube 15, and air outlet connects right wind pipe 2, and an end of left intake stack 14 connects left chilling blower fan 13, and an end of right wind pipe 2 connects combustion fan 10, and the other end connects right combustion-supporting pipeline 1.A is spaced apart to thermal-collecting tube 15 with B to thermal-collecting tube 4, and per two A arrange that between thermal-collecting tube 4 B is to thermal-collecting tube 15.A spaced apart is set to two-layer to thermal-collecting tube 15 to thermal-collecting tube 4 and B, lay respectively at the upper and lower side of roller-way 18 in the kiln.Control valve 8 is set between combustion fan 10 and the wind pipe; Be connected with subsequent use combustion fan 9 between control valve 8 and the combustion fan 10; Be connected with chilling airduct 5 between the intake stack of the left and right sides; Subsequent use chilling blower fan 11 connects this chilling airduct 5 through three-way pipe 12, between three-way pipe 12 and the chilling airduct 5 valve 7 is set respectively, the flow direction of the direction indication wind of arrow in the diagram.
Using residual heat from kiln furnace utilizes energy saving technique, at first, starts left chilling blower fan 13 and right chilling blower fan 6 respectively; Left side chilling blower fan 13 begins left transporting cold wind in the intake stack 14, and cold wind gets into B in thermal-collecting tube 15, and B in thermal-collecting tube 15 with quench zone in hot blast carry out exchange heat; Temperature in the quench zone reduces, and the gas temperature of B in thermal-collecting tube 15 improves, and the cold wind of B in thermal-collecting tube 15 becomes hot blast; Enter in the right wind pipe 2, simultaneously, right chilling blower fan 6 is blown in blast pipe 3 roads to the right; Cold wind gets into A through A in thermal-collecting tube 4 to the air inlet of thermal-collecting tube 4, and with the Gas Exchange heat in the quench zone, the gas temperature in the quench zone reduces; The cold wind of A in thermal-collecting tube 4 becomes hot blast, enters into left wind pipe 16.Start combustion fan 10 then; Combustion fan 10 is blown in wind pipe 2, the left wind pipe 16 to the right respectively; Will be in the hot blast that thermal-collecting tube 15 air outlets come out be brought right combustion-supporting pipeline 1 together into from B; To bring left combustion-supporting pipeline 17 into to the hot blast that thermal-collecting tube 4 air outlets flow out from A simultaneously, finally enter into combustion-supporting section, improve combustion-supporting section temperature.
Claims (5)
1. a using residual heat from kiln furnace utilizes energy saving technique, it is characterized in that: comprise the steps:
(1) exchange heat: in the kiln quench zone, utilize the chilling blower fan in pipeline, to send into cold wind, cold wind through in the quench zone during pipeline with quench zone in heat exchange, gas temperature reduces in the quench zone, the gas temperature rising of pipeline;
(2) Btu utilization: the hot blast of acquisition mixes with the air that combustion fan is carried in combustion-supporting pipeline, and the temperature of combustion air is increased to 600 ℃～800 ℃.
2. the using residual heat from kiln furnace used of the said technology of claim 1 utilizes energy saver, comprises combustion-supporting pipeline, and it is characterized in that: the quench zone left and right side of kiln is distributed with intake stack and wind pipe; The end of intake stack connects the chilling blower fan; One end of wind pipe connects combustion-supporting pipeline, and the other end connects combustion fan, is distributed with thermal-collecting tube in the quench zone; The air inlet of thermal-collecting tube is connected with the intake stack of a side, and air outlet is connected with the wind pipe of opposite side.
3. using residual heat from kiln furnace according to claim 2 utilizes energy saver, it is characterized in that: thermal-collecting tube be divided into A to thermal-collecting tube and B to thermal-collecting tube, A is opposite with the wind direction of B in thermal-collecting tube to thermal-collecting tube, and A is spaced apart to thermal-collecting tube to thermal-collecting tube and B.
4. utilize energy saver according to claim 2 or 3 described using residual heat from kiln furnace, it is characterized in that: combustion-supporting pipeline is the high temperature resistant stainless steel pipeline, and the arranged outside thermal insulation layer.
5. using residual heat from kiln furnace according to claim 4 utilizes energy saver; It is characterized in that: between combustion fan and the wind pipe control valve is set; Be connected with subsequent use combustion fan between control valve and the combustion fan; Be connected with the chilling airduct between the intake stack of the left and right sides, subsequent use chilling blower fan connects this chilling airduct through three-way pipe, between three-way pipe and the chilling airduct valve is set respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100839559A CN102589309A (en) | 2012-03-19 | 2012-03-19 | Energy-saving process and energy-saving device for utilization of kiln waste |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100839559A CN102589309A (en) | 2012-03-19 | 2012-03-19 | Energy-saving process and energy-saving device for utilization of kiln waste |
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| CN102589309A true CN102589309A (en) | 2012-07-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2012100839559A Pending CN102589309A (en) | 2012-03-19 | 2012-03-19 | Energy-saving process and energy-saving device for utilization of kiln waste |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102967155A (en) * | 2012-12-03 | 2013-03-13 | 卢爱玲 | Energy saving device capable of recycling afterheat on ceramic kiln |
| CN111504062A (en) * | 2020-04-30 | 2020-08-07 | 广东萨米特陶瓷有限公司 | Waste heat utilization system for balancing temperature field of cooling section of kiln and using method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4416325A (en) * | 1980-03-31 | 1983-11-22 | Foster Wheeler Energy Corporation | Heat exchanger |
| CN201772478U (en) * | 2010-08-20 | 2011-03-23 | 佛山市中窑窑业发展有限公司 | Combustion supporting heating device for kiln |
| CN201875734U (en) * | 2010-11-19 | 2011-06-22 | 佛山市摩德娜机械有限公司 | Combustion supporting air heating and energy-saving device and ceramic firing kiln |
-
2012
- 2012-03-19 CN CN2012100839559A patent/CN102589309A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4416325A (en) * | 1980-03-31 | 1983-11-22 | Foster Wheeler Energy Corporation | Heat exchanger |
| CN201772478U (en) * | 2010-08-20 | 2011-03-23 | 佛山市中窑窑业发展有限公司 | Combustion supporting heating device for kiln |
| CN201875734U (en) * | 2010-11-19 | 2011-06-22 | 佛山市摩德娜机械有限公司 | Combustion supporting air heating and energy-saving device and ceramic firing kiln |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102967155A (en) * | 2012-12-03 | 2013-03-13 | 卢爱玲 | Energy saving device capable of recycling afterheat on ceramic kiln |
| CN111504062A (en) * | 2020-04-30 | 2020-08-07 | 广东萨米特陶瓷有限公司 | Waste heat utilization system for balancing temperature field of cooling section of kiln and using method thereof |
| CN111504062B (en) * | 2020-04-30 | 2022-08-12 | 广东萨米特陶瓷有限公司 | Waste heat utilization system for balancing temperature field of cooling section of kiln and using method thereof |
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Application publication date: 20120718 |