CN202643568U - Parallel flow type double-cavity lime kiln - Google Patents
Parallel flow type double-cavity lime kiln Download PDFInfo
- Publication number
- CN202643568U CN202643568U CN2012203120783U CN201220312078U CN202643568U CN 202643568 U CN202643568 U CN 202643568U CN 2012203120783 U CN2012203120783 U CN 2012203120783U CN 201220312078 U CN201220312078 U CN 201220312078U CN 202643568 U CN202643568 U CN 202643568U
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- kiln
- storage tank
- reversing
- flow type
- type double
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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
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/40—Production or processing of lime, e.g. limestone regeneration of lime in pulp and sugar mills
Abstract
The utility model relates to a parallel flow type double-cavity lime kiln which comprises a double-cavity lime kiln body, a material feeding device, a material discharging device, an air supplying system, a fuel supplying system and a waste gas discharging system. A preheating zone, a calcining zone and a cooling zone are arranged on the kiln cavity on each side in the kiln body, and the calcining zones of the kiln cavities on two sides are provided with burners. The fuel supplying system is provided with a reversing device and a reversing storage tank which is a floating roof tank, wherein an inlet of the reversing device is connected with an outlet of a Roots fan, one side of an outlet of the reversing device is connected with the burners through a three-way valve, and the other side of the outlet of the reversing device is connected with the reversing storage tank. A bypass is arranged between connection pipelines of the reversing device and the reserving storage tank and an inlet of the three-way valve, and a valve is arranged on the bypass. By arranging the reversing storage tank and the bypass, fuel gas is discharged to the reversing storage tank in the reversing process; and the reversing storage discharges gas and the fuel gas which flow into the lime kiln together when the fuel gas is supplied. Therefore, the fuel gas is prevented from being discharged into the air during reversing, fuel is saved, cost of lime production is reduced, pollution to the air is reduced, and environment protection is facilitated.
Description
Technical field
The utility model belongs to metallurgy and technical field of chemical, relates to a kind of limestone kiln, is specifically related to a kind of cocurrent flow type double-hearth lime kiln with the commutation storage tank.
Background technology
Quickened lime is important flux and the slag former of Iron and Steel Production, and the develop rapidly of Iron And Steel Industry more and more is subject to people's attention quickened lime production and equipment.The kind in limestone kiln mainly contains the two thorax kilns of beam type kiln, sleeve kiln and cocurrent flow type, and the two thorax kilns of cocurrent flow type are also referred to as Maers Kiln.The two thorax kilns of cocurrent flow type are provided with A, two kiln bodies of B, and two kiln bodies are respectively equipped with preheating zone, calcining zone and cooling zone, and the bottom of the calcining zone of two kiln bodies interconnects, and material is along the respectively operation downwards of two kiln thoraxes.When kiln thorax A calcines, combustion air and fuel gas also flow with material in kiln thorax A, material among the burned flame calcining kiln thorax A, the flue gas that calcining produces is through the material of connecting passage in the kiln thorax B preheating kiln thorax B, and then waste gas discharges to blowdown system through the waste gas outlet of kiln thorax B.During same kiln thorax B calcining, combustion air and fuel enter kiln thorax B calcining materials, and flue gas discharges to blowdown system by waste gas outlet to kiln thorax A preheating material through connecting passage.Both sides kiln thorax hocket calcining and accumulation of heat, then each continuity 12 ~ 15 minutes stops in the kiln for combustion-supporting gas and fuel in cycle, so that next one circulation is carried out in commutation, commutation process need to 1 minute.Since with roots blower to the kiln body for fuel gas, blower fan can not build the pressure, therefore during the commutation to the outside drain combustion gas.This part fuel gas of discharging wastes, and not only wastes energy, and has increased the energy consumption of producing lime, and gas emission causes topsoil, the harm environmental safety.
Summary of the invention
The purpose of this utility model provides a kind of cocurrent flow type double-hearth lime kiln, and the fuel gas of discharging is collected recycling during will commutating by storage tank, to save the energy, reduces the lime production energy consumption, reduces the pollution to environment.
The utility model cocurrent flow type double-hearth lime kiln comprises two thorax kiln bodies, apparatus for feeding, discharging equipment, air feed system, the fuel supply system exhaust emission system of unifying.Every side kiln thorax is provided with preheating zone, calcining zone and cooling zone in the kiln body, and the calcining zone of both sides kiln thorax is provided with burner.Fuel feed system is provided with commutating device, and the entrance of commutating device is connected with the roots blower outlet, and a side outlet is connected with burner 2,5 by T-valve.The cocurrent flow type double-hearth lime kiln also is provided with the commutation storage tank, and the commutation storage tank is breathing roof tank, and a side outlet of commutating device is connected with the commutation storage tank.
Be provided with bypass between the connecting pipeline of commutating device and commutation storage tank and the entrance of T-valve, the fuel gas that is used for the commutation storage tank stores returns lime kiln burner, and bypass is provided with valve.The floating roof of commutation storage tank is provided with saddle weight.Burner is the insert burner.
The utility model is by arranging commutation storage tank and bypass, and the cocurrent flow type double-hearth lime kiln is discharged to the commutation storage tank at commutation process with fuel gas.When the fuel gas, the commutation storage tank is emitted gas to the kiln body, makes the fuel gas of storage and fuel gas with the roots blower confession together enter the limestone kiln; avoid during the commutation to airborne release fuel gas, fuel saving reduces the cost of lime production; minimizing is conducive to environment protection to the pollution of atmosphere.The utility model is simple in structure, cost is low, easy to implement.
Description of drawings
Fig. 1 is the schematic flow sheet of the utility model cocurrent flow type double-hearth lime kiln.
Wherein
1-----preheating zone, 2-burner, 3-calcining zone, 4-cooling zone, 5-burner, 6-T-valve, 7-commutation storage tank, 8-valve, 9-commutating device, 10-roots blower, 11-saddle weight, 12-bypass, 13-connecting passage.
Embodiment
Below in conjunction with accompanying drawing the utility model is described in detail.
The utility model cocurrent flow type double-hearth lime kiln as shown in Figure 1, comprise two thorax kiln bodies, apparatus for feeding, discharging equipment, air feed system, the fuel supply system exhaust emission system of unifying, every side kiln thorax is provided with preheating zone 1, calcining zone 3 and cooling zone 4 in the kiln body, both sides kiln body (kiln body A and kiln body B) calcining zone bottom is provided with connecting passage 13, and kiln body A is connected connecting passage 13 and connects with kiln body B.The calcining zone of kiln body A and kiln body B is provided with burner 2,5, and burner is the insert burner.Fuel feed system is provided with commutating device 9 and commutation storage tank 7, and storage tank is breathing roof tank.The entrance of commutating device is connected with roots blower 10 outlets, and commutating device one side outlet is connected with burner 2,5 by T-valve 6, and the opposite side outlet is connected with the commutation storage tank.Be provided with bypass 12 between the connecting pipeline of commutating device 9 and commutation storage tank 7 and the entrance of T-valve 6, bypass is provided with valve 8.The floating roof of commutation storage tank 7 is provided with saddle weight 11, and saddle weight is used for the commutation storage tank provides pressure when burner is put back to the fuel gas of storage, and fuel gas is extruded from ventilation storage tank 7.The weight of saddle weight is as the criterion can extrude fuel gas after the commutation according to reality commutation storage tank size.
The operational process of the utility model cocurrent flow type double-hearth lime kiln is: when when kiln thorax A calcines, fuel gas arrives insert burner 2 by roots blower 10, commutating device 9 and T-valve 6, burner ejection fuel and air burn, material among the calcining kiln thorax A, the flue gas that calcining produces discharges to blowdown system through the waste gas outlet of kiln thorax B behind the material of connecting passage in the kiln thorax B preheating kiln thorax B.Move and commutate after 12 minutes, commutating device 9 stops feed fuels gas in the kiln, 7 exhausts of changed course commutation storage tank.Because commutation storage tank 7 is breathing roof tank, along with entering of fuel gas, tank deck upwards floats, and the valve 8 of bypass 12 this moment is in closing condition.To commutation storage tank exhaust after 1 minute, commutating device 9 commutation limestone kiln air feed, this moment valve open, the fuel gas that the fuel gas that stores in the commutation storage tank 7 and roots blower are come together enters burner 5.Burner 5 ejection fuel and air burn, the material among the calcining kiln thorax B, the flue gas that calcining produces behind the material of connecting passage in the kiln thorax A preheating kiln thorax A, through waste gas outlet to the blowdown system discharging.Kiln thorax A and kiln thorax B hocket accumulation of heat and calcination process by the action of commutating device 9, T-valve 6 and valve 8, carry out switch operation automatically.
Claims (4)
1. cocurrent flow type double-hearth lime kiln, comprise two thorax kiln bodies, apparatus for feeding, discharging equipment, air feed system, the fuel supply system exhaust emission system of unifying, every side kiln thorax is provided with preheating zone (1), calcining zone (3) and cooling zone (4) in the kiln body, and the calcining zone of both sides kiln thorax is provided with burner (2,5); Described fuel feed system is provided with commutating device (9), the entrance of commutating device is connected with roots blower (10) outlet, one side outlet is connected with burner (2,5) by T-valve (6), it is characterized in that: described cocurrent flow type double-hearth lime kiln also is provided with commutation storage tank (7), described storage tank is breathing roof tank, and a side outlet of commutating device is connected with the commutation storage tank.
2. cocurrent flow type double-hearth lime kiln according to claim 1 is characterized in that: be provided with bypass (12) between the connecting pipeline of commutating device (9) and commutation storage tank (7) and the entrance of T-valve (6), bypass is provided with valve (8).
3. cocurrent flow type double-hearth lime kiln according to claim 1, it is characterized in that: the floating roof of described commutation storage tank (7) is provided with saddle weight.
4. cocurrent flow type double-hearth lime kiln according to claim 1, it is characterized in that: described burner (2,5) is the insert burner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012203120783U CN202643568U (en) | 2012-06-30 | 2012-06-30 | Parallel flow type double-cavity lime kiln |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012203120783U CN202643568U (en) | 2012-06-30 | 2012-06-30 | Parallel flow type double-cavity lime kiln |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202643568U true CN202643568U (en) | 2013-01-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012203120783U Expired - Lifetime CN202643568U (en) | 2012-06-30 | 2012-06-30 | Parallel flow type double-cavity lime kiln |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202643568U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102701610A (en) * | 2012-06-30 | 2012-10-03 | 石家庄市新华工业炉有限公司 | Concurrent flow type double-hearth limekiln |
| CN116063009A (en) * | 2023-01-10 | 2023-05-05 | 湖南涟钢冶金材料科技有限公司 | Automatic discharging device of wheat kiln |
-
2012
- 2012-06-30 CN CN2012203120783U patent/CN202643568U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102701610A (en) * | 2012-06-30 | 2012-10-03 | 石家庄市新华工业炉有限公司 | Concurrent flow type double-hearth limekiln |
| CN116063009A (en) * | 2023-01-10 | 2023-05-05 | 湖南涟钢冶金材料科技有限公司 | Automatic discharging device of wheat kiln |
| CN116063009B (en) * | 2023-01-10 | 2024-04-19 | 湖南涟钢冶金材料科技有限公司 | Automatic discharging device of wheat kiln |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: SHIJIAZHUANG XINHUA ENERGY ENVIRONMENTAL TECHNOLOG Free format text: FORMER NAME: SHIJIAZHUANG XINHUA INDUSTRIAL FURNACE CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 051431 Hebei city of Shijiazhuang province Luancheng douyu town equipment manufacturing base of Xinhua Road No. 6 (douyu West Middle School) Patentee after: SHIJIAZHUANG XINHUA ENERGY ENVIRONMENTAL TECHNOLOGY Co.,Ltd. Address before: 051431 Hebei city of Shijiazhuang province Luancheng douyu town equipment manufacturing base of Xinhua Road No. 6 (douyu West Middle School) Patentee before: SHIJIAZHUANG XINHUA INDUSTRIAL FURNACE Co.,Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130102 |