CN112556406B - Adjusting device of rotary kiln position and rotary kiln - Google Patents
Adjusting device of rotary kiln position and rotary kiln Download PDFInfo
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- CN112556406B CN112556406B CN202011462706.1A CN202011462706A CN112556406B CN 112556406 B CN112556406 B CN 112556406B CN 202011462706 A CN202011462706 A CN 202011462706A CN 112556406 B CN112556406 B CN 112556406B
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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
- F27B7/00—Rotary-drum furnaces, i.e. horizontal or slightly inclined
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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
- F27B7/00—Rotary-drum furnaces, i.e. horizontal or slightly inclined
- F27B7/20—Details, accessories, or equipment peculiar to rotary-drum furnaces
- F27B7/22—Rotary drums; Supports therefor
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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
- F27B7/00—Rotary-drum furnaces, i.e. horizontal or slightly inclined
- F27B7/20—Details, accessories, or equipment peculiar to rotary-drum furnaces
- F27B7/26—Drives
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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
- F27B7/00—Rotary-drum furnaces, i.e. horizontal or slightly inclined
- F27B7/20—Details, accessories, or equipment peculiar to rotary-drum furnaces
- F27B7/42—Arrangement of controlling, monitoring, alarm or like devices
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Muffle Furnaces And Rotary Kilns (AREA)
Abstract
The invention discloses an adjusting device for a rotary kiln position, which comprises an adjusting assembly, a distance measuring assembly and a control assembly, wherein the distance measuring assembly is arranged on the adjusting assembly; the adjustment subassembly sets up on II group's of rotary kiln head pulley bases, includes: the friction agent conveying pipeline is provided with a first control valve; the lubricant conveying pipeline is provided with a second control valve; the distance measuring assembly is used for measuring the distance value d between the calibration point and the second group of support rings of the rotary kiln in real time; the control assembly is connected with the first control valve, the second control valve and the distance measuring assembly; when the distance value d is detected to be in a first preset range, the control assembly controls the lubricant to be added between the second group of top wheels and the second group of backing rings; when the distance value d is detected to be in a second preset range, the control assembly controls the friction agent to be added between the second group of top wheels and the second group of backing rings; the adjusting device realizes real-time adjustment of the kiln position.
Description
Technical Field
The application relates to the technical field of ferrous metallurgy, in particular to an adjusting device for a rotary kiln position and a rotary kiln.
Background
A production line of oxidized pellets of a chain grate machine, a rotary kiln and an annular cooler in blast furnace ironmaking adopts the drying and preheating of the chain grate machine; roasting and solidifying in a rotary kiln; the modern pellet production process of soaking and cooling by the circular cooler has the advantages of high utilization rate of secondary energy, cleanness, environmental protection, high mineral content of finished products, low energy consumption and the like, and is widely applied to the pellet production process.
The rotary kiln is a large-scale device which operates under heavy load at high temperature, and generally consists of a thin-wall steel barrel which is obliquely arranged (the inclination is 1% -6%) and is arranged on a supporting device, and the thin-wall steel barrel is lined with refractory materials, and the device has higher requirements on operation stability and sealing property: the preheating balls enter the kiln through a connecting port on the chain grate and the rotary kiln, and the roasting and discharging processes are completed by the rotation of the kiln body and the gravity. The gravity center of the rotary kiln can be dynamically changed due to various factors in the operation process of the rotary kiln, so that the rotary kiln body has the phenomenon of vertical movement, and the fire-resistant materials at the connection part of the head and the tail necking of the kiln body and the upper and lower processes are abraded in serious cases, and finally the serious result of production stop is caused. The scheme adopted at present is to regularly monitor and manually adjust the top wheel of the rotary kiln, but the manual monitoring, adjustment and feedback have hysteresis quality and contingency, and the kiln position of the rotary kiln cannot be kept in the optimal position range.
Disclosure of Invention
The invention provides a rotary kiln position adjusting device and a rotary kiln, and aims to solve or partially solve the technical problem that the rotary kiln position cannot be adjusted on line in real time, so that the rotary kiln is damaged and even stops production.
In order to solve the technical problem, the invention provides an adjusting device for a rotary kiln position, which comprises an adjusting assembly, a distance measuring assembly and a control assembly;
the setting of adjustment subassembly includes on II group's apical wheel bases of rotary kiln:
the rotary kiln comprises a friction agent unit and a friction agent conveying pipeline, wherein one end of the friction agent conveying pipeline is connected with the friction agent unit, the other end of the friction agent conveying pipeline is provided with an opening and extends towards the second group of top wheels of the rotary kiln, and a first control valve is arranged on the friction agent conveying pipeline;
the lubricating device comprises a lubricating agent unit and a lubricating agent conveying pipeline, wherein one end of the lubricating agent conveying pipeline is connected with the lubricating agent unit, the other end of the lubricating agent conveying pipeline is provided with an opening and extends to the II groups of top wheels, and a second control valve is arranged on the lubricating agent conveying pipeline;
the distance measuring assembly is used for measuring the distance value d between the calibration point and the second group of support rings of the rotary kiln in real time;
the control assembly is connected with the first control valve, the second control valve and the distance measuring assembly; when the distance value d is detected to be in a first preset range, the control assembly controls the second control valve to be opened and the first control valve to be closed, and lubricant is added between the second group of top wheels and the second group of backing rings; when the distance value d is detected to be in a second preset range, the control assembly controls the second control valve to be closed and the first control valve to be opened, and a friction agent is added between the second group of top wheels and the second group of backing rings.
Optionally, when detecting that the distance value d is within a first preset range, the control assembly controls the second control valve to open and the first control valve to close, and adds a lubricant between the group ii of top wheels and the group ii of trunnion rings, which specifically includes:
when the distance value d satisfies d<d 0 +d 1 When the regulating assembly is used, the control assembly controls the second control valve to open and the first control valve to close so that the regulating assembly starts to add the lubricant between the second group of top wheels and the second group of backing rings;
when the distance value d satisfies d<d 0 +d 2 When the lubricant is added, the control component controls the adjusting component to continuously add the lubricant;
when the distance value d satisfies d ≧ d 0 +d 2 When the lubricant is added, the control component controls the second control valve to close and the first control valve to close so as to stop adding the lubricant by the adjusting component;
wherein, d 0 Limiting the rotary kiln up pole, d 1 For upward limit of rotary kiln, d 2 Limiting the rotary kiln downwards and upwards.
Further, d 0 Has a value range of 500mm<d 0 ≤1000mm；d 1 Has a value range of 5mm<d 1 ≤10mm；d 2 Has a value range of 65mm<d 0 ≤70mm。
According to the technical scheme, when the distance value d is detected to be within the second preset range, the control assembly controls the second control valve to be closed and the first control valve to be opened, and a friction agent is added between the II groups of top wheels and the II groups of backing rings, and the method specifically comprises the following steps:
when the distance value d satisfies d 0 +d 2 <d<d 0 +d 3 When the adjusting assembly is used, the control assembly controls the second control valve to be closed and the first control valve to be opened, so that the adjusting assembly adds a friction agent between the second group of top wheels and the second group of backing rings;
when the distance value d satisfies d ≦ d 0 +d 2 When the friction agent is added, the control assembly controls the second control valve to close and the first control valve to close so that the adjustment assembly stops adding the friction agent;
wherein, d 0 Limiting the upper limit of the rotary kiln, d 2 For the rotary kiln to go down and go up for limiting, d 3 Limiting the lower limit of the rotary kiln.
Further, d 0 Has a value range of 500mm<d 0 ≤1000mm；d 2 Has a value range of 65mm<d 2 ≤70mm；d 3 Has a value range of 75mm<d 0 ≤80mm。
Optionally, the adjustment assembly further comprises a first ball valve and a second ball valve;
the first ball valve is connected with the first control valve in parallel through a pipeline, and the second ball valve is connected with the second control valve in parallel through a pipeline.
Optionally, the first control valve and the second control valve are both power valves.
Optionally, the abrasive is quartz sand.
Optionally, the lubricant is molybdenum disulfide powder.
Based on the same inventive concept of the technical scheme, the invention also provides a rotary kiln which comprises a group II of top wheel bases, a group II of top wheels and a group II of backing rings, wherein the group II of top wheel bases are provided with the adjusting devices in the technical scheme.
Through one or more technical schemes of the invention, the invention has the following beneficial effects or advantages:
the invention provides an adjusting device for a kiln position of a rotary kiln.A distance measuring component measures a distance value between a calibration point and a second group of support rings of the rotary kiln, a control component judges the distance value in real time, when the distance value is in a first preset range, the control adjusting component adds a lubricant between a second group of top wheels and the second group of support rings, and when the distance value is in a second preset range, the control adjusting component adds a friction agent between the second group of top wheels and the second group of support rings; the adjusting device realizes continuous monitoring of the kiln position information, and determines to add the lubricant or the friction agent according to the kiln position information so as to adjust the kiln position of the rotary kiln in a target range in real time, thereby ensuring that the rotary kiln works at a normal position, and avoiding the rotary kiln from generating equipment damage due to excessive drunkenness and adverse effects on normal production rhythm.
The above description is only an overview of the technical solutions of the present invention, and the present invention can be implemented in accordance with the content of the description so as to make the technical means of the present invention more clearly understood, and the above and other objects, features, and advantages of the present invention will be more clearly understood.
Drawings
Various additional advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Also, like reference numerals are used to refer to like parts throughout the drawings. In the drawings:
FIG. 1 shows a schematic view of a rotary kiln position adjustment apparatus according to an embodiment of the present invention;
FIG. 2 shows a schematic view of a rotary kiln according to an embodiment of the present invention;
FIG. 3 illustrates a flow diagram of the decision logic of the control element according to one embodiment of the present invention;
FIG. 4 illustrates a schematic diagram of the determination of a control element according to one embodiment of the present invention;
description of reference numerals:
1. an adjustment assembly; 11. a frictionizer unit; 12. a frictionizer transport conduit; 13. a first control valve; 14. a lubricant unit; 15. a lubricant delivery line; 16. a second control valve; 17. a first ball valve; 18. a second ball valve; 2. a distance measurement assembly; 3. a control component; 41. i group of top wheel foundations; 42. group I of catch wheels; 43. i, group of top wheels; 44. i, a group of backing rings; 45. a ring gear; 46. a transmission gear; 47. main driving; 48. II, group of top wheels; 49. II, group of backing rings; 50. II group of top wheel foundations; 51. a rotary kiln body.
Detailed Description
In order to make the present application more clearly understood by those skilled in the art to which the present application pertains, the following detailed description of the present application is made with reference to the accompanying drawings. Throughout the specification, unless otherwise specifically noted, terms used herein should be understood as having meanings as commonly used in the art. Accordingly, unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. If there is a conflict, the present specification will control. Unless otherwise specifically stated, various apparatuses and the like used in the present invention are either commercially available or can be prepared by existing methods.
In order to solve the problem that the kiln position of the rotary kiln in the prior art cannot be adjusted online in real time, in an alternative embodiment, as shown in fig. 1, an adjusting device for the kiln position of the rotary kiln is provided, which includes an adjusting assembly 1, a distance measuring assembly 2 and a control assembly 3;
the rotary kiln comprises a friction agent unit 11 and a friction agent conveying pipeline 12, wherein one end of the friction agent conveying pipeline 12 is connected with the friction agent unit 11, the other end of the friction agent conveying pipeline 12 is opened and extends to a second group of top wheels 48 of the rotary kiln, and a first control valve 13 is arranged on the friction agent conveying pipeline 12;
the lubricating device comprises a lubricating agent unit 14 and a lubricating agent conveying pipeline 15, wherein one end of the lubricating agent conveying pipeline 15 is connected with the lubricating agent unit 14, the other end of the lubricating agent conveying pipeline 15 is opened and extends to a group II of top wheels 48, and a second control valve 16 is arranged on the lubricating agent conveying pipeline 15;
the distance measuring component 2 is used for measuring the distance value d between the calibration point and the second group of support rings of the rotary kiln in real time;
the control assembly 3 is connected with the first control valve 13, the second control valve 16 and the distance measuring assembly 2; when the distance value d is detected to be in a first preset range, the control component 3 controls the second control valve 16 to be opened and the first control valve 13 to be closed, and lubricant is added between the second group of top wheels 48 and the second group of backing rings; when the distance value d is detected to be in a second preset range, the control assembly 3 controls the second control valve 16 to be closed and the first control valve 13 to be opened, and a friction agent is added between the second group of top wheels 48 and the second group of backing rings.
Specifically, the schematic structural diagram of the rotary kiln to which the adjusting device provided in this embodiment is applied is shown in fig. 2, and a rotary kiln main body 51 is erected on the first group of top wheel bases 41 and the second group of top wheel bases 50 at a certain inclination angle: the group I top wheel base 41 is fixedly provided with a group I catch wheel 42 and a group I top wheel 43, and a group I backing ring 44 sleeved on the rotary kiln main body 51 is erected on the group I top wheel 43; similarly, the second group of top wheel bases 50 are fixedly provided with the second group of catch wheels and the second group of top wheels 48, and the second group of backing rings 49 sleeved on the rotary kiln main body 51 are erected on the second group of top wheels 48. And a main drive 47 of the rotary kiln is further arranged on the group II top wheel base 50, and a transmission gear 46 on the main drive 47 and a gear ring 45 on a rotary kiln main body 51 form a transmission structure.
Research shows that the factors causing dynamic change of the gravity center of the rotary kiln and causing the rotary kiln main body 51 to move up and down in the actual operation process include: (1) The rotary kiln in operation slides to a low point due to the inclined arrangement and the circumferential elastic sliding factors of the contact area of the gear ring 45 and the top wheel; (2) The contact surface of the rotary kiln backing ring and the top wheel is abraded, so that the axial friction force is changed, and (3) the phenomenon of accretion in the kiln caused by the fact that powder enters the kiln inevitably in the roasting process is avoided. The trend of kiln position change is as follows: when the friction force between the backing ring and the top wheel is increased, the kiln position of the rotary kiln moves upwards towards the kiln tail direction (the direction of a feed port, the right side of the figure 2); when the friction force between the backing ring and the top wheel is reduced, the kiln position of the rotary kiln descends towards the kiln head direction (the direction of a discharge hole, the left side of the figure 2).
Therefore, the control principle of the adjusting device provided by the embodiment is as follows: measuring a signal for continuously measuring the distance d between the II groups of backing rings 49 and the measuring calibration point through the distance measuring component 2; the calibration point is a preset measurement calibration point for representing the kiln position, when the rotary kiln body 51 moves along the direction of the rotating shaft due to self weight and gravity change in the rotary kiln rotation process, the measured d value changes, the larger the d value is, the more the d value is, the lower the kiln position is, the smaller the d value is, the upper the kiln position is; the distance measuring element transmits the measured d value signal to the control assembly 3 in real time for processing, the control assembly 3 controls the adjusting assembly 1 to send out a control signal according to the real-time d value and the control logic when the d value is in a first preset range, the second control valve 16 is opened, and a lubricant is added between the second group of top wheels 48 and the second group of backing rings 49 to reduce the friction coefficient and control the kiln position to descend; when the value d is in a second preset range, the control component 3 sends a control signal, the first control valve 13 is opened, and the adjusting component 1 is controlled to add a friction agent between the II groups of top wheels 48 and the II groups of backing rings 49 so as to increase the friction coefficient and control the kiln position to move upwards; wherein, the value in the second preset range is larger than the value in the first preset range, d represents that the current kiln position is higher in the first preset range, and the kiln position is required to be controlled to go down; d, in a second preset range, the current kiln position is lower, and the kiln position is required to be controlled to move upwards. By determining the combination of adding the friction agent or the lubricant according to the kiln position, the kiln position can be kept within the target range of normal operation in real time.
The abrasive unit 11 in the adjustment assembly 1 is a container for storing abrasive, and the lubricant unit 14 is a container for storing lubricant. Outlets of the lubricant conveying pipeline 15 and the friction agent conveying pipeline 12 are arranged on the upper edge of a bearing seat of a top wheel of the rotary kiln, so that the work of adding friction agents or lubricants between a support ring and the top wheel of the rotary kiln can be completed. Optionally, a smart meter may be provided on the frictionizer unit 11 or the lubricant unit 14 to monitor frictionizer or lubricant parameters.
It should be noted that the adjusting assembly 1 in this embodiment is disposed on the second group of top wheels 50, and adjusts the friction coefficient between the second group of top wheels 48 and the second group of backing rings 49; in fact, the adjusting assembly 1 can also be arranged on the group I top wheel base 41 to adjust the friction coefficient between the group I top wheel 43 and the group I trunnion ring 44. The reason why the present embodiment is provided on the second group of head rollers 50 is that the adjustment of the second group of head rollers 48 and the second group of trunnion rings 49 has been shown to adjust the kiln position to the target range more quickly.
In practical application, the distance measuring assembly 2 can be installed on the adjusting assembly 1, and also can be installed on the II groups of top wheel bases 50, namely the rotary kiln anti-seismic bases. Alternatively, the distance measuring assembly 2 may use a non-contact distance measuring device, such as a laser distance measuring device, an image distance measuring device, an ultrasonic distance measuring device, a magnetic distance measuring device, or the like.
The control component 3 can use a digital control unit, and can be accessed to a PLC digital control unit of the secondary system for programming logic control.
Alternatively, the first control valve 13 and the second control valve 16 are both mechanically controlled valves, and power valves may be used. The advantage of using a mechanically controlled valve is that it can be manually operated to effect emergency adjustment when a non-contact distance measuring element, digital control unit or adjustment device module fails or is out of regulation.
In actual production, an electronic control system fault, a first control valve 13 and a second control valve 16 fault, or abnormal and violent movement of the rotary kiln can be met, and manual intervention is needed for adjustment. In order to allow manual control also in the above exceptional cases, the adjustment assembly 1 optionally further comprises a first spherical valve 17 and a second spherical valve 18; the first globe valve 17 is connected in parallel with the first control valve 13 by a line, and the second globe valve 18 is connected in parallel with the second control valve 16 by a line. The parallel ball valve is arranged as an emergency adjusting mechanism, so that the reliability of the adjusting device is improved, and when an electronic system fails or has a fault, the parallel ball valve can be manually controlled to adjust, so that the rotary kiln is ensured to be positioned at a normal position to operate.
Optionally, the solid abrasive can be selected as the abrasive, and various dry mineral powders on site can be directly used; the lubricant may be a solid lubricant or a liquid lubricant, such as a liquid lubricant including a synthetic base oil or a mineral base oil, a solid lubricant including graphite, or the like.
Through mass production practices, a preferred friction and lubricant is proposed: the friction agent is quartz sand; the lubricant is molybdenum disulfide powder; practice shows that the materials are used as a friction agent and a lubricant to be matched for use, so that the kiln position can be adjusted to a target range more accurately and rapidly.
The embodiment provides an adjusting device for a kiln position of a rotary kiln, wherein a distance measuring component measures a distance value between a calibration point and a set II of support rings of the rotary kiln, a control component judges the distance value in real time, when the distance value is within a first preset range, the control adjusting component adds a lubricant between a set II of top wheels and a set II of support rings, and when the distance value is within a second preset range, the control adjusting component adds a friction agent between the set II of top wheels and the set II of support rings; the adjusting device realizes continuous monitoring of kiln position information, and determines to add the lubricant or the friction agent according to the kiln position information so as to adjust the kiln position of the rotary kiln within a target range in real time, thereby ensuring that the rotary kiln works at a normal position, and avoiding the damage of the rotary kiln to equipment caused by excessive movement and the adverse effect on the normal production rhythm.
Based on the same inventive concept of the previous embodiment, in yet another alternative embodiment, a quantized kilneye control logic is provided, as follows:
when the detected distance value d is in a first preset range, the control component 3 controls the second control valve 16 to be opened and the first control valve 13 to be closed, and adds lubricant between the group II of top wheels 48 and the group II of backing rings 49, which specifically includes:
when the distance value d satisfies d<d 0 +d 1 When the control component 3 controls the second control valve 16 to be opened and the first control valve 13 to be closed, so that the adjusting component 1 starts to add the lubricant between the group II top wheel 48 and the group II backing ring 49;
when the distance value d satisfies d<d 0 +d 2 Meanwhile, the control component 3 controls the adjusting component 1 to continuously add the lubricant;
when the distance value d satisfies d ≧ d 0 +d 2 When the lubricant is added to the regulating assembly 1, the control assembly 3 controls the second control valve 16 to close and the first control valve 13 to close so as to stop adding the lubricant;
when the detected distance value d is in a second preset range, the control component 3 controls the second control valve 16 to close and the first control valve 13 to open, and a friction agent is added between the group II of top wheels 48 and the group II of backing rings 49, specifically including:
when the distance value d satisfies d 0 +d 2 <d<d 0 +d 3 When the adjustment assembly 1 is used, the control assembly 3 controls the second control valve 16 to be closed and the first control valve 13 to be opened, so that the friction agent is added between the second group of top wheels 48 and the second group of backing rings 49 by the adjustment assembly 1;
when the distance value d satisfies d ≦ d 0 +d 2 When the friction agent is added, the control assembly 3 controls the second control valve 16 to close and the first control valve 13 to close, so that the adjustment assembly 1 stops adding the friction agent;
wherein d is 0 Limiting the upper limit of the rotary kiln, d 1 For upward limit of rotary kiln, d 2 For the rotary kiln to go down and go up for limiting, d 3 Limiting the lower limit of the rotary kiln.
D in the above scheme 0 、d 1 、d 2 、d 3 Is predetermined and is preset as a judgment value in the control unit. The logic flow chart of the judgment of the control element in the above process is shown in fig. 3, the schematic judgment chart is shown in fig. 4, and the specific judgment process is as follows:
when the distance value d is detected<d 0 +d 1 When the position of the kiln deviates from the upper limit, adding a lubricant to enable the position of the kiln to descend;
gradually increases at a distance value d and satisfies d<d 0 +d 2 In the process, continuously adding the lubricant and keeping the kiln position going downwards;
when the detected distance value d is larger than or equal to d 0 +d 2 When the lubricant is not added, stopping adding the lubricant;
when the distance value d is detected 0 +d 2 <d<d 0 +d 3 When the kiln position is deviated from the lower limit, adding a friction agent to enable the kiln position to ascend;
gradually decreases at a distance value d and satisfies d>d 0 +d 2 In the process, continuously adding a friction agent, and keeping the kiln position going upwards;
when the distance value d is detected to be less than or equal to d 0 +d 2 When the addition of the abrasive is stopped.
Through the combination of the adjusting means, the operation position of the rotary kiln can be finally limited to d 0 +d 1 ＜d＜d 0 +d 2 Within a target range of (a).
Further, it was determined by mass production practices that:
d 0 has a value range of 500mm<d 0 ≤1000mm；d 1 Has a value range of 5mm<d 1 ≤10mm；d 2 Has a value range of 65mm<d 2 ≤70mm；d 3 Has a value range of 75mm<d 0 ≤80mm。
Based on the same inventive concept of the previous embodiment, in a further alternative embodiment, a rotary kiln is further provided, wherein the rotary kiln comprises a group II top wheel base 50, a group II top wheel 48 and a group II backing ring 49, and the group II top wheel base 50 is provided with the adjusting device in the previous embodiment.
Through one or more embodiments of the invention, the invention has the following advantages or advantages:
the invention provides an adjusting device for a kiln position of a rotary kiln.A distance measuring component measures a distance value between a calibration point and a second group of support rings of the rotary kiln, a control component judges the distance value in real time, when the distance value is in a first preset range, the control adjusting component adds a lubricant between a second group of top wheels and the second group of support rings, and when the distance value is in a second preset range, the control adjusting component adds a friction agent between the second group of top wheels and the second group of support rings; the adjusting device realizes continuous monitoring of kiln position information, and determines to add the lubricant or the friction agent according to the kiln position information so as to adjust the kiln position of the rotary kiln within a target range in real time, thereby ensuring that the rotary kiln works at a normal position, and avoiding the damage of the rotary kiln to equipment caused by excessive movement and the adverse effect on the normal production rhythm.
While the preferred embodiments of the present application have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including preferred embodiments and all alterations and modifications as fall within the scope of the application.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present application without departing from the spirit and scope of the application. Thus, if such modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is intended to include such modifications and variations as well.
Claims (9)
1. The adjusting device for the kiln position of the rotary kiln is characterized by comprising an adjusting assembly, a distance measuring assembly and a control assembly;
the setting of adjustment subassembly is in on II group's top wheels bases of rotary kiln include:
the rotary kiln comprises a friction agent unit and a friction agent conveying pipeline, wherein one end of the friction agent conveying pipeline is connected with the friction agent unit, the other end of the friction agent conveying pipeline is open and extends to the second group of top wheels of the rotary kiln, and a first control valve is arranged on the friction agent conveying pipeline;
the lubricating device comprises a lubricating unit and a lubricating agent conveying pipeline, wherein one end of the lubricating agent conveying pipeline is connected with the lubricating unit, the other end of the lubricating agent conveying pipeline is provided with an opening and extends to the II groups of top wheels, and a second control valve is arranged on the lubricating agent conveying pipeline;
the distance measuring assembly is used for measuring the distance value d between the calibration point and the second group of backing rings of the rotary kiln in real time; the distance measuring component is a non-contact distance measuring element;
the control assembly is connected with the first control valve, the second control valve and the distance measuring assembly; when the distance value d is detected to be in a first preset range, the control assembly controls the second control valve to be opened and the first control valve to be closed, and lubricant is added between the group II of top wheels and the group II of backing rings; when the distance value d is detected to be in a second preset range, the control assembly controls the second control valve to be closed and the first control valve to be opened, and a friction agent is added between the II groups of top wheels and the II groups of backing rings, and the method comprises the following steps: when the distance value d satisfies d 0 +d 2 <d<d 0 +d 3 When the adjusting assembly is used, the control assembly controls the second control valve to be closed and the first control valve to be opened, so that the adjusting assembly adds a friction agent between the second group of top wheels and the second group of backing rings; when the distance value d satisfies d ≦ d 0 +d 2 When the friction agent is added, the control assembly controls the second control valve to close and the first control valve to close so that the adjustment assembly stops adding the friction agent; wherein d is 0 For limiting the upper limit of the rotary kiln, d 2 For the rotary kiln to move downwards and upwards for limiting, d 3 Limiting the lower limit of the rotary kiln.
2. The adjusting apparatus according to claim 1, wherein when the distance value d is detected to be within a first preset range, the control module controls the second control valve to open and the first control valve to close, and lubricant is added between the group ii of top wheels and the group ii of trunnion rings, specifically comprising:
when the distance value d satisfies d<d 0 +d 1 When the regulating assembly is used, the control assembly controls the second control valve to be opened and the first control valve to be closed so that the regulating assembly starts to add lubricant between the II groups of top wheels and the II groups of backing rings;
when the distance value d satisfies d<d 0 +d 2 The control component controls the adjusting component to continuously add the lubricant;
when the distance value d satisfies d ≧ d 0 +d 2 When the lubricant is added to the regulating assembly, the control assembly controls the second control valve to close and the first control valve to close so as to stop adding the lubricant to the regulating assembly;
wherein d is 0 Limit the rotary kiln up pole, d 1 Is the rotary kiln goes up to limit, d 2 Limiting the rotary kiln downwards and upwards.
3. The adjustment device of claim 2, wherein d is 0 Has a value range of 500mm<d 0 Less than or equal to 1000mm; d is 1 Has a value range of 5mm<d 1 Less than or equal to 10mm; d is 2 Has a value range of 65mm<d 0 ≤70mm。
4. The adjustment device of claim 1, wherein d is 0 Has a value range of 500mm<d 0 Less than or equal to 1000mm; d is 2 Has a value range of 65mm<d 2 Less than or equal to 70mm; d is 3 Has a value range of 75mm<d 0 ≤80mm。
5. The adjustment device of claim 1, wherein the adjustment assembly further comprises a first ball valve and a second ball valve;
the first ball valve is connected with the first control valve in parallel through a pipeline, and the second ball valve is connected with the second control valve in parallel through a pipeline.
6. The tuning device of claim 1, wherein said first control valve and said second control valve are each powered valves.
7. The adjustment device of claim 1, wherein the abrasive is quartz sand.
8. The adjustment device of claim 1, wherein the lubricant is molybdenum disulfide powder.
9. A rotary kiln is characterized by comprising a group II top wheel base, a group II top wheel and a group II backing ring, wherein the group II top wheel base is provided with an adjusting device as claimed in any one of claims 1 to 8.
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| CN202011462706.1A CN112556406B (en) | 2020-12-11 | 2020-12-11 | Adjusting device of rotary kiln position and rotary kiln |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN202853351U (en) * | 2012-10-23 | 2013-04-03 | 北京凯盛建材工程有限公司 | Rotary kiln vertical movement real time monitoring device |
| CN206109492U (en) * | 2016-10-10 | 2017-04-19 | 鞍钢集团矿业有限公司 | Automatic adjusting device in rotary kiln kiln position |
| CN107830730B (en) * | 2017-12-01 | 2023-08-01 | 中冶焦耐(大连)工程技术有限公司 | Automatic rotary kiln body movement adjusting device and method |
| CN209295656U (en) * | 2018-10-16 | 2019-08-23 | 常熟重型机械制造有限公司 | A kind of rotary kiln automatic limit device |
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