CN113758277A - Double-chamber kiln charging method - Google Patents
Double-chamber kiln charging method Download PDFInfo
- Publication number
- CN113758277A CN113758277A CN202110995691.3A CN202110995691A CN113758277A CN 113758277 A CN113758277 A CN 113758277A CN 202110995691 A CN202110995691 A CN 202110995691A CN 113758277 A CN113758277 A CN 113758277A
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- Prior art keywords
- kiln
- double
- chamber
- feeding
- chamber cylinder
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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.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims abstract description 17
- 230000002457 bidirectional effect Effects 0.000 claims abstract description 25
- 239000000463 material Substances 0.000 claims abstract description 25
- 238000005303 weighing Methods 0.000 claims abstract description 16
- 235000019738 Limestone Nutrition 0.000 claims abstract description 11
- 239000006028 limestone Substances 0.000 claims abstract description 11
- 230000005484 gravity Effects 0.000 claims abstract description 5
- 238000007789 sealing Methods 0.000 claims description 9
- 239000002994 raw material Substances 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 4
- 239000003638 chemical reducing agent Substances 0.000 description 3
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 2
- 235000017491 Bambusa tulda Nutrition 0.000 description 2
- 241001330002 Bambuseae Species 0.000 description 2
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 2
- 239000011425 bamboo Substances 0.000 description 2
- 210000000038 chest Anatomy 0.000 description 2
- 238000005338 heat storage Methods 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 239000004575 stone Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- -1 motor burning loss Substances 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Images
Classifications
-
- 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
- F27D3/00—Charging; Discharging; Manipulation of charge
- F27D3/12—Travelling or movable supports or containers for the charge
-
- 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
- F27D3/00—Charging; Discharging; Manipulation of charge
- F27D3/10—Charging directly from hoppers or shoots
-
- 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
- F27D3/00—Charging; Discharging; Manipulation of charge
- F27D3/10—Charging directly from hoppers or shoots
- F27D2003/105—Charging directly from hoppers or shoots using shutters
-
- 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
- F27D3/00—Charging; Discharging; Manipulation of charge
- F27D3/12—Travelling or movable supports or containers for the charge
- F27D2003/121—Band, belt or mesh
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Furnace Charging Or Discharging (AREA)
Abstract
The invention discloses a double-chamber kiln feeding method, which comprises the steps of feeding a double-chamber kiln by using a double-chamber kiln feeding device, when feeding is needed, weighing quantitative limestone materials by a weighing hopper at the top of the kiln, feeding the limestone materials to a receiving hopper of a first kiln chamber cylinder and a receiving hopper of a second kiln chamber cylinder through a feeding machine at the top of the kiln and a bidirectional belt at the lower end, closing a hydraulic gate at the bottom of the receiving hopper, and stopping the feeding machine at the top of the kiln and the bidirectional belt when the weight of the materials in the receiving hopper reaches a set weight; when the first kiln chamber cylinder needs to be fed, a hydraulic flashboard of the first kiln chamber cylinder is opened, a hydraulic inserting plate of a receiving hopper is opened, materials are fed into the first kiln chamber cylinder under the action of gravity, and after the materials are fed, the hydraulic flashboard of the first kiln chamber cylinder and the hydraulic inserting plate of the receiving hopper are successively closed to finish feeding; when the second kiln chamber cylinder needs to be fed, the first kiln chamber cylinder feeding step is carried out. The invention can solve the problems of frequent rotation switching and more faults of the existing feeding device of the double-hearth kiln.
Description
Technical Field
The invention relates to the technical field of steel manufacturing equipment, in particular to a method for feeding materials by using a feeding device of a double-hearth kiln.
Background
The double-chamber kiln is fed as shown in figure 1, generally comprises a kiln front weighing hopper 1 with a flashboard 2 arranged at the bottom, a single-bucket trolley 3 guided by an inclined bridge guide rail 4 is arranged below the kiln front weighing hopper, the top of the inclined bridge guide rail 4 is bent, a kiln top weighing hopper 5 is arranged below the top of the bent inclined bridge guide rail 4, a kiln top feeder 6 is arranged below the kiln top feeder, a bidirectional belt 7 is arranged right below the kiln top feeder 6, two rotary hoppers 8 and 9 are respectively arranged below two ends of the bidirectional belt 7, and a closing cover plate is arranged at the tops of two chamber kilns (a kiln chamber cylinder I10 and a kiln chamber cylinder II 11) of the double-chamber kiln is arranged right below each rotary hopper. In the production and operation process, the vibrating feeder is started by the lower end of a lime stone bin in front of the kiln and a belt in front of the kiln, and the lime stone raw material is conveyed to enter a weighing hopper 1 in front of the kiln for weighing. When the weight value in the weighing hopper 1 in front of the kiln reaches a set weight value, after the single-hopper trolley 3 reaches the bottom of the inclined bridge track 4, the gate plate 2 at the bottom of the weighing hopper in front of the kiln is opened, and limestone raw materials are put into the single-hopper trolley 3. Under the action of the winch, the single-bucket trolley 3 pours the limestone raw material into the kiln top weighing hopper 5.
When the kiln chamber cylinder I is calcined, the system needs to feed materials into the heat-storage kiln chamber cylinder II. At the moment, the limestone raw material is conveyed into a second rotary hopper 9 corresponding to the top of the kiln barrel 2 by a kiln top vibrating feeder 6 through a kiln top bidirectional belt 7. In the feeding process, in order to ensure that the second rotary hopper 9 is filled with enough stones and keep the material level horizontal, the motor of the second rotary hopper 9 drives the speed reducer to rotate the second rotary hopper 9. When the set weight in the rotary hopper II 9 is reached, the kiln top feeder 6, the bidirectional belt 7 and the rotary hopper stop running. When the charging time set by the system is up, the cover plate II of the double-chamber kiln cylinder is opened, and the rotary hopper II 9 puts the limestone raw materials in the hopper into the double-chamber kiln cylinder II under the action of the hydraulic cylinder. After the materials are added, the rotary hopper is lifted upwards, and then the kiln cylinder closing cover plate is closed. Thus, in one combustion period, feeding is realized for 2-3 times.
After the double-hearth kiln is reversed, the original hearth becomes a heat storage hearth, the system changes the running direction of the bidirectional belt 7 on the top of the kiln, and feeding is carried out in the rotary hopper I8 of the hearth. Because the feeding system of the kiln top of the double-chamber kiln has more faults, if the rotary hopper of the kiln cylinder has more faults due to the burning loss of a motor, the oil leakage of a hydraulic cylinder and the complicated replacement of the hydraulic cylinder, the closing cover plate and the limit switch of the kiln cylinder are more, and the phenomena of mechanical faults, oil leakage of the hydraulic cylinder and the like cause more faults of the feeding system, the improvement of the existing feeding system is necessary, and the fault rate of field equipment is reduced.
Disclosure of Invention
The invention aims to provide a double-hearth kiln feeding method to solve the problems of frequent rotation switching and more faults of the conventional double-hearth kiln feeding device and method.
In order to solve the problems, the technical scheme of the invention is as follows: the double-chamber kiln feeding method comprises a kiln top feeding machine arranged at the bottom of a kiln top weighing hopper, a bidirectional belt arranged right below the kiln top feeding machine, a feed inlet of a chamber cylinder of the double-chamber kiln arranged right below two ends of the bidirectional belt, a receiving hopper arranged between the feed inlet of the chamber cylinder of the double-chamber kiln and right below two ends of the bidirectional belt, a wear-resistant lining plate arranged on the inner wall of the receiving hopper, a hydraulic inserting plate arranged at the bottom of the receiving hopper, a sealing ring arranged at the feed inlet of the chamber cylinder of the double-chamber kiln, the receiving hopper connected with the feed inlet of the chamber cylinder of the double-chamber kiln through an chute, and a hydraulic flashboard arranged beside the feed inlet of the chamber cylinder of the double-chamber kiln;
the charging step comprises: when feeding is needed, after quantitative limestone materials are weighed by a kiln top weighing hopper, feeding is respectively carried out on the receiving hoppers of a kiln chamber cylinder I and a kiln chamber cylinder II through a kiln top feeding machine and a bidirectional belt at the lower end, a hydraulic flashboard at the bottom of the receiving hopper is closed at the moment, and when the materials in the receiving hoppers reach the set weight, the kiln top feeding machine and the bidirectional belt are stopped; when the first kiln chamber cylinder needs to be fed, a hydraulic flashboard of the first kiln chamber cylinder is opened, a hydraulic inserting plate of a receiving hopper is opened, materials are fed into the first kiln chamber cylinder under the action of gravity, and after the materials are fed, the hydraulic flashboard of the first kiln chamber cylinder and the hydraulic inserting plate of the receiving hopper are successively closed to finish feeding; when the second kiln chamber cylinder needs to be fed, the first kiln chamber cylinder feeding step is carried out.
In the above technical solution, a more specific solution may be: the discharging center line of the bidirectional belt is intersected with the vertical center line of the receiving hopper, and the central receiving point of the kiln chamber cylinder of the double-chamber kiln is positioned on the vertical center line of the receiving hopper.
Further: the cross section of the chute is perpendicular to the vertical central line of the kiln chamber cylinder of the double-chamber kiln.
Further: the rotation angle when the hydraulic gate plate is opened is greater than 90 degrees.
Further: the sealing ring is arranged on the inner side of the feed inlet of the kiln chamber cylinder of the double-chamber kiln.
Due to the adoption of the technical scheme, compared with the prior art, the invention has the following beneficial effects:
according to the double-chamber kiln feeding method, the conventional rotary hopper and a kiln cylinder closing cover plate are removed together, a receiving hopper is arranged at the upper part of a feeding hole of each kiln cylinder, a wear-resistant lining plate is arranged in the receiving hopper, a hydraulic inserting plate and a limit switch are arranged below the receiving hopper, the top of the feeding hole of each kiln cylinder is connected with the receiving hopper through a sealing ring and a chute, a hydraulic flashboard and the limit switch are arranged, a kiln top feeding system fault (such as the rotary hopper is frequently damaged by a cycloid reducer bearing, a motor is burnt, a hydraulic cylinder leaks oil, a hydraulic cylinder shaft sleeve is easily blocked by stone slag, the kiln cylinder closing cover plate has the phenomena that the limit switch is not in place in contact, the cover plate is not well closed and the like) is reduced, the feeding speed is improved, and the conventional production can be well met; and equipment is simplified, maintenance workload is reduced, and the service life of the receiving hopper is prolonged due to the protection of the wear-resistant lining plate.
Drawings
FIG. 1 is a schematic diagram of a prior art configuration;
FIG. 2 is a front view of a charging device for a dual-chamber kiln according to an embodiment of the present invention;
FIG. 3 is a left side view of a dual-chamber kiln charging device according to an embodiment of the present invention;
FIG. 4 is a top view of a dual-bore kiln charging device according to an embodiment of the present invention.
Detailed Description
The embodiments of the invention will be described in further detail with reference to the accompanying drawings:
the double-chamber kiln feeding method comprises the steps of feeding by using a double-chamber kiln feeding device, wherein the double-chamber kiln feeding device shown in the figures 2 to 4 comprises a kiln top feeding machine 6 arranged at the bottom of a kiln top weighing hopper 5 and a bidirectional belt 7 arranged right below the kiln top feeding machine 6, kiln chamber cylinders and feeding ports of the double-chamber kiln are arranged right below two ends of the bidirectional belt 7, namely a feeding port 10-1 of a kiln chamber cylinder I10 and a feeding port 11-1 of a kiln chamber cylinder II 11, a receiving hopper 20 is respectively arranged between the position right below two ends of the bidirectional belt 7 and the feeding ports of the kiln chambers of the double-chamber kiln, a wear-resistant lining plate 21 is arranged on the inner wall of the receiving hopper 20, and the service life of the receiving hopper is prolonged due to the protection of the wear-resistant lining plate 21. The bottom of the receiving hopper 20 is provided with a hydraulic inserting plate 25 and a limit switch.
The feed inlet of the kiln chamber section of thick bamboo of two thorax kilns is equipped with sealing washer 22, and sealing washer 22 is located the feed inlet inboard of the kiln chamber section of thick bamboo of two thorax kilns to ensure that valve and sealing washer laminating are good, also convenient the change simultaneously. The receiving hopper 20 is connected with a feed inlet of a kiln chamber cylinder of the double-chamber kiln through a chute 23, the cross section of the chute 23 is vertical to the vertical central line of the kiln chamber cylinder of the double-chamber kiln, and a hydraulic flashboard 24 and a limit switch are arranged beside the feed inlet of the kiln chamber cylinder of the double-chamber kiln. The rotation angle when the hydraulic flashboard is opened is larger than 90 degrees, so that the material is prevented from falling on the valve and affecting the action of the valve plate.
The discharging central line of the bidirectional belt 7 is intersected with the vertical central line of the receiving hopper 20, and the central receiving point of the kiln chamber cylinder of the double-chamber kiln is positioned on the vertical central line of the receiving hopper 20, so that the level of the charging material surface is effectively ensured.
The charging step comprises:
when feeding is needed, after quantitative limestone materials are weighed by the kiln top weighing hopper 5, feeding is respectively carried out on the materials to the receiving hoppers 20 of the kiln chamber cylinder I10 and the kiln chamber cylinder II 11 through the kiln top feeding machine 6 and the bidirectional belt 7 at the lower end, the hydraulic gate plate 24 at the bottom of the receiving hopper 20 is closed at the moment, and when the materials in the receiving hopper 20 reach the set weight, the kiln top feeding machine 6 and the bidirectional belt 7 are stopped.
When the feeding of the first kiln chamber cylinder 10 is needed, the hydraulic flashboard 24 of the first kiln chamber cylinder 10 is opened, the hydraulic flashboard 25 of the receiving hopper is opened, the materials are fed into the first kiln chamber cylinder 10 under the action of gravity, and after the feeding is finished, the hydraulic flashboard 24 of the first kiln chamber cylinder 10 and the hydraulic flashboard 24 of the receiving hopper 20 are closed successively to finish the feeding.
When the second kiln chamber barrel 11 needs to be charged, the hydraulic flashboard 24 of the second kiln chamber barrel 11 is opened, the hydraulic inserting plate 25 of the receiving hopper is opened, the materials are charged into the second kiln chamber barrel 11 under the action of gravity, and after the materials are charged, the hydraulic flashboard 24 of the second kiln chamber barrel 11 and the hydraulic inserting plate 24 of the receiving hopper 20 are closed successively to complete charging.
According to the double-chamber kiln feeding method, the existing rotary hopper and a kiln cylinder closing cover plate are removed together, a receiving hopper 20 is arranged at the upper part of a feeding hole of each kiln cylinder, a wear-resistant lining plate 21 is arranged in the receiving hopper, a hydraulic inserting plate 25 and a limit switch are arranged below the kiln cylinder closing cover plate, the top of the feeding hole of each kiln cylinder is connected with the receiving hopper 20 through a sealing ring 22 and a chute 23, a hydraulic flashboard 24 and the limit switch are arranged, the receiving hopper 20 and a kiln top hydraulic valve are used as main kiln top feeding modes, faults of a kiln top feeding system (such as damage of a bearing of a cycloid speed reducer, motor burning loss, oil leakage of a hydraulic cylinder, blocking of a shaft sleeve of the hydraulic cylinder easily, insufficient contact of the limit switch, incapability of closing the cover plate in a buckling and the like in the kiln cylinder closing cover plate) are reduced, the feeding speed is increased, and the existing production can be well met.
Claims (5)
1. The double-hearth kiln feeding method comprises the steps of feeding the double-hearth kiln by using a double-hearth kiln feeding device, wherein the double-hearth kiln feeding device comprises a kiln top feeder at the bottom of a kiln top weighing hopper, a bidirectional belt under the kiln top feeder, and a feeding hole of a kiln hearth cylinder of the double-hearth kiln is arranged under the two ends of the bidirectional belt, and is characterized in that: a receiving hopper is respectively arranged between the position under the two ends of the bidirectional belt and the feed inlet of the kiln chamber of the double-chamber kiln, the inner wall of the receiving hopper is provided with a wear-resistant lining plate, the bottom of the receiving hopper is provided with a hydraulic inserting plate, the feed inlet of the kiln chamber cylinder of the double-chamber kiln is provided with a sealing ring, the receiving hopper is connected with the feed inlet of the kiln chamber cylinder of the double-chamber kiln through a chute, and a hydraulic flashboard is arranged beside the feed inlet of the kiln chamber cylinder of the double-chamber kiln;
the charging step comprises: when feeding is needed, after quantitative limestone materials are weighed by a kiln top weighing hopper, feeding is respectively carried out on the receiving hoppers of a kiln chamber cylinder I and a kiln chamber cylinder II through a kiln top feeding machine and a bidirectional belt at the lower end, a hydraulic flashboard at the bottom of the receiving hopper is closed at the moment, and when the materials in the receiving hoppers reach the set weight, the kiln top feeding machine and the bidirectional belt are stopped; when the first kiln chamber cylinder needs to be fed, a hydraulic flashboard of the first kiln chamber cylinder is opened, a hydraulic inserting plate of a receiving hopper is opened, materials are fed into the first kiln chamber cylinder under the action of gravity, and after the materials are fed, the hydraulic flashboard of the first kiln chamber cylinder and the hydraulic inserting plate of the receiving hopper are successively closed to finish feeding; when the second kiln chamber cylinder needs to be fed, the first kiln chamber cylinder feeding step is carried out.
2. The double-hearth kiln charging method according to claim 1, characterized in that: the discharging center line of the bidirectional belt is intersected with the vertical center line of the receiving hopper, and the central receiving point of the kiln chamber cylinder of the double-chamber kiln is positioned on the vertical center line of the receiving hopper.
3. The double-hearth kiln charging method according to claim 1 or 2, characterized in that: the cross section of the chute is perpendicular to the vertical central line of the kiln chamber cylinder of the double-chamber kiln.
4. The double-hearth kiln charging method according to claim 3, characterized in that: the rotation angle when the hydraulic gate plate is opened is greater than 90 degrees.
5. The double-hearth kiln charging method according to claim 4, characterized in that: the sealing ring is arranged on the inner side of the feed inlet of the kiln chamber cylinder of the double-chamber kiln.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110995691.3A CN113758277A (en) | 2021-08-27 | 2021-08-27 | Double-chamber kiln charging method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110995691.3A CN113758277A (en) | 2021-08-27 | 2021-08-27 | Double-chamber kiln charging method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113758277A true CN113758277A (en) | 2021-12-07 |
Family
ID=78791490
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110995691.3A Pending CN113758277A (en) | 2021-08-27 | 2021-08-27 | Double-chamber kiln charging method |
Country Status (1)
| Country | Link |
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| CN (1) | CN113758277A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202869267U (en) * | 2012-10-18 | 2013-04-10 | 金仙惠 | Easy-to-convey submerged arc furnace smelt conveying mechanism |
| CN204495068U (en) * | 2015-03-21 | 2015-07-22 | 青岛中智达环保熔炼设备有限公司 | Automatic gold conjugate device after electric furnace |
| CN108700376A (en) * | 2015-12-22 | 2018-10-23 | 保尔伍斯股份有限公司 | Blast furnace stores chamber device |
| CN208217927U (en) * | 2017-08-29 | 2018-12-11 | 德阳昊华清平磷矿有限公司 | A kind of ardealite conveying loading apparatus |
| CN210268161U (en) * | 2019-07-11 | 2020-04-07 | 垣曲县刚玉陶粒有限责任公司 | Bidirectional belt conveying device for ceramsite |
| CN111351363A (en) * | 2020-03-09 | 2020-06-30 | 北京嘉永会通能源科技有限公司 | Conveying device for furnace feeding system |
| CN213020957U (en) * | 2020-07-17 | 2021-04-20 | 广西柳州钢铁集团有限公司 | Double-chamber kiln feeding device |
| CN112971202A (en) * | 2019-12-13 | 2021-06-18 | 常德烟草机械有限责任公司 | Cut tobacco shunting mechanism |
-
2021
- 2021-08-27 CN CN202110995691.3A patent/CN113758277A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202869267U (en) * | 2012-10-18 | 2013-04-10 | 金仙惠 | Easy-to-convey submerged arc furnace smelt conveying mechanism |
| CN204495068U (en) * | 2015-03-21 | 2015-07-22 | 青岛中智达环保熔炼设备有限公司 | Automatic gold conjugate device after electric furnace |
| CN108700376A (en) * | 2015-12-22 | 2018-10-23 | 保尔伍斯股份有限公司 | Blast furnace stores chamber device |
| CN208217927U (en) * | 2017-08-29 | 2018-12-11 | 德阳昊华清平磷矿有限公司 | A kind of ardealite conveying loading apparatus |
| CN210268161U (en) * | 2019-07-11 | 2020-04-07 | 垣曲县刚玉陶粒有限责任公司 | Bidirectional belt conveying device for ceramsite |
| CN112971202A (en) * | 2019-12-13 | 2021-06-18 | 常德烟草机械有限责任公司 | Cut tobacco shunting mechanism |
| CN111351363A (en) * | 2020-03-09 | 2020-06-30 | 北京嘉永会通能源科技有限公司 | Conveying device for furnace feeding system |
| CN213020957U (en) * | 2020-07-17 | 2021-04-20 | 广西柳州钢铁集团有限公司 | Double-chamber kiln feeding device |
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