CN217466269U - Online automatic uniform continuous sampling device of rotary hearth furnace - Google Patents
Online automatic uniform continuous sampling device of rotary hearth furnace Download PDFInfo
- Publication number
- CN217466269U CN217466269U CN202221037367.7U CN202221037367U CN217466269U CN 217466269 U CN217466269 U CN 217466269U CN 202221037367 U CN202221037367 U CN 202221037367U CN 217466269 U CN217466269 U CN 217466269U
- Authority
- CN
- China
- Prior art keywords
- rotary hearth
- hearth furnace
- sampling device
- chute
- sampling
- Prior art date
- 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.)
- Active
Links
Images
Landscapes
- Tunnel Furnaces (AREA)
Abstract
The utility model belongs to the sampling field of rotary hearth furnaces, and relates to an online automatic uniform continuous sampling device of a rotary hearth furnace, which comprises a chute and a sampling device body arranged below the chute, wherein the bottom of the chute is provided with a through hole communicated with the sampling device body; the sampling device body comprises a sample collecting box arranged below the chute, a sample box arranged in the sample collecting box and a weighing device arranged at the bottom of the sample box. The utility model is different from the traditional manual sampling mode of the materials of the rotary hearth furnace, automatically, uniformly and continuously obtains the samples of the rotary hearth furnace on the material chute of the rotary hearth furnace during normal production, and can more accurately reflect the components and the quality of products in a period of time; the invention can ensure the automatic, uniform and continuous sampling of materials in the rotary hearth furnace, completely replace manual random sampling, and has safe operation and no influence on production.
Description
Technical Field
The utility model belongs to rotary hearth furnace sample field relates to an online automatic even continuous sampling device of rotary hearth furnace.
Background
The rotary hearth furnace process is mainly used for the environment-friendly treatment of iron-containing zinc-containing dust and sludge of iron and steel enterprises and generates metallized pellets and secondary zinc oxide powder, and the process is gradually accepted and accepted in China. With the progress of production practice, new problems are also exposed to the new process, for example, the sampling operation of the rotary hearth furnace material is inconvenient, and the online sampling has serious potential safety hazard during the production at the end of the movement equipment; continuous sampling is difficult, so that the randomness of the sample is high, and the composition and quality of the material are difficult to fully characterize.
The materials of the rotary hearth furnace comprise: samples such as raw materials, mixture, green pellets, dry pellets, metallized pellets, etc., will be described below by way of example of metallized pellet products.
A rotary hearth furnace process belongs to a high-temperature direct reduction iron-making process of carbon-containing pellets, and also relates to a complex chemical reaction process besides a heat transfer process in a furnace, wherein raw material pellets are heated in a high-temperature environment in the furnace, carbon in the pellets is subjected to reduction reaction with oxygen compounds such as iron, potassium, sodium, zinc, lead and the like, elements such as potassium, sodium, zinc, lead, chlorine and the like can overflow into flue gas to form smoke dust, and iron is continuously retained in the pellets mainly in the form of metal elementary substance iron, namely the product metallized pellets of the rotary hearth furnace. And cooling the high-temperature metallized pellets, and screening and warehousing for storage. In order to judge the quality of the metallized pellet product, sampling is carried out, chemical component analysis is carried out, and index calculation is further completed. Therefore, the accuracy of finished product sampling directly reflects the quality of production.
At present, the finished product sampling of the rotary hearth furnace adopts an artificial random sampling mode, and because the rotary hearth furnace is continuously operated for 24 hours, the data detected by adopting the artificial sampling mode are instantaneous values at a single moment in sampling, and the data have larger randomness, and cannot truly reflect the whole quality of the obtained product in a period of time, so that the actual production condition is difficult to objectively evaluate according to indexes measured and calculated by sample components. In addition, because the finished product of the rotary hearth furnace still has residual temperature of about 50-200 ℃ and is in a continuously running conveying device, serious potential safety hazards exist in the manual sampling process.
SUMMERY OF THE UTILITY MODEL
In view of this, an object of the present invention is to provide an online automatic uniform continuous sampling device for a rotary hearth furnace, which displays the quality of collected samples in real time during the sampling process.
In order to achieve the above purpose, the utility model provides a following technical scheme: an online automatic uniform continuous sampling device of a rotary hearth furnace comprises a chute and a sampling device body arranged below the chute, wherein the bottom of the chute is provided with a through hole communicated with the sampling device body; the sampling device body comprises a sample collecting box arranged below the chute, a sample box arranged in the sample collecting box and a weighing device arranged at the bottom of the sample box.
Optionally, the sample box is communicated with the through hole through a guide pipe, an opening adjusting device is further arranged between the guide pipe and the through hole, and the weighing device is communicated with the controller.
Optionally, the draft tube is a tubular structure with a large diameter at the top and a small diameter at the bottom, and the size of the top of the draft tube is larger than the diameter of the through hole at the bottom of the chute.
Optionally, the opening adjusting device includes a valve plate disposed on the through hole and a link mechanism connected to the valve plate, and the link mechanism is connected to a driving device.
Optionally, the opening degree adjusting device further includes an opening degree indicator and a signal feedback device, and the signal feedback device is communicated with the controller.
Optionally, the driving device is an electric, pneumatic or hydraulic power source, and the power source is connected with the link mechanism and acts on the valve to complete the opening and closing actions by driving the link mechanism; the driving device is connected with the controller.
The beneficial effects of the utility model reside in that: the utility model relates to an online automatic uniform continuous sampling device of a rotary hearth furnace, which is different from the traditional manual sampling mode of the rotary hearth furnace material, automatically, uniformly and continuously obtains the rotary hearth furnace sample on a material chute of the rotary hearth furnace when realizing normal production, and can more accurately reflect the product components and quality in a period of time; the invention can ensure the automatic, uniform and continuous sampling of materials in the rotary hearth furnace, completely replace manual random sampling, and has safe operation and no influence on production.
Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention. The objectives and other advantages of the invention may be realized and attained by the means of the instrumentalities and/or combinations particularly pointed out in the appended claims.
Drawings
For the purposes of promoting a better understanding of the objects, features and advantages of the invention, reference will now be made to the following detailed description taken in conjunction with the accompanying drawings in which:
FIG. 1 is a front view of the on-line automatic uniform continuous sampling device of the rotary hearth furnace of the present invention;
FIG. 2 is a side view of the utility model of an online automatic uniform continuous sampling device for a rotary hearth furnace.
Reference numerals: the device comprises an opening adjusting device 1, a flow guide pipe 2, a sample collecting box 3, a sample box 4 and a weighing device 5.
Detailed Description
The following description of the embodiments of the present invention is provided for illustrative purposes, and other advantages and effects of the present invention will be readily apparent to those skilled in the art from the disclosure herein. The present invention can also be implemented or applied through other different specific embodiments, and various details in the present specification can be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that the drawings provided in the following embodiments are only for illustrating the basic idea of the present invention, and the features in the following embodiments and examples may be combined with each other without conflict.
Wherein the showings are for the purpose of illustrating the invention only and not for the purpose of limiting the same, and in which there is shown by way of illustration only and not in any way limiting the scope of the invention; for a better understanding of the embodiments of the present invention, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.
The same or similar reference numerals in the drawings of the embodiments of the present invention correspond to the same or similar parts; in the description of the present invention, it should be understood that if there are terms such as "upper", "lower", "left", "right", "front", "back", etc., indicating directions or positional relationships based on the directions or positional relationships shown in the drawings, it is only for convenience of description and simplification of description, but it is not intended to indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore, the terms describing the positional relationships in the drawings are only used for illustrative purposes and are not to be construed as limiting the present invention, and those skilled in the art can understand the specific meanings of the terms according to specific situations.
Referring to fig. 1 to 2, an online automatic uniform continuous sampling device for a rotary hearth furnace includes a chute and a sampling device body disposed below the chute, the bottom of the chute being provided with a through hole communicated with the sampling device body; the sampling device body comprises a sample collecting box 3 arranged below the chute, a sample box 4 arranged in the sample collecting box 3, and a weighing device 5 arranged at the bottom of the sample box 4, the sample box is communicated with the through hole through the guide pipe 2, an opening degree adjusting device 1 is also arranged between the guide pipe 2 and the through hole, the weighing device 5 is communicated with a controller, the guide pipe 2 is a tubular structure with a large diameter at the top and a small diameter at the bottom, the size of the top of the opening adjusting device is larger than the diameter of a through hole at the bottom of the chute, the opening adjusting device 1 comprises a valve plate arranged on the through hole and a connecting rod mechanism connected with the valve plate, the connecting rod mechanism is connected with a driving device, the opening adjusting device 1 also comprises an opening indicator and a signal feedback device, the signal feedback device is communicated with a controller, the driving device is an electric or pneumatic or hydraulic power source, the power source is connected with the connecting rod mechanism and acts on the valve to complete opening and closing actions by driving the connecting rod mechanism; the driving device is connected with the controller.
The utility model discloses utilize rotary hearth furnace material chute current structure, reserve the trompil in chute bottom, install the even continuous sampling device body in trompil below online automation, when using:
1. firstly, setting a sampling time length t and a required sample mass m on a panel of a controller, and automatically calculating the required theoretical sample mass delta m in unit time to be m/t by the controller;
2. the driving device opens the valve plate through the connecting rod mechanism and feeds back the actual opening value ki to the controller; at the moment, the materials in the chute naturally fall through the opening adjusting device 1 under the action of gravity and uniformly and continuously fall into the removable sample box 4 in the sample collecting box 3 through the draft tube 2;
3. the sample mass m is collected in real time through the weighing device 5 arranged at the bottom of the sample collecting box 3 i And feeds back the time length t to the controller, and the controller synchronously records the corresponding time length t i And calculating the mass Deltam of the sample actually collected in unit time i ＝(m i -m i-1 )/(t i -t i-1 )；
4. The controller compares the mass Δ m of the sample actually collected in real time i The difference e ═ Δ m from the theoretically required sample mass Δ m i Δ m, when the value of e exceeds the permissible threshold, the value of the opening k is increased or decreased accordingly i Until the value of e meets the requirement of an allowable threshold;
5. when m is i And when the set total sampling mass m is reached, closing the valve plate of the opening adjusting device 1 to stop sampling, and taking out the sample box 4 to finish a sampling process.
Finally, the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions, and all of them should be covered by the scope of the claims of the present invention.
Claims (6)
1. The utility model provides an online automatic even continuous sampling device of rotary hearth furnace which characterized in that: comprises a chute and a sampling device body arranged below the chute, wherein the bottom of the chute is provided with a through hole communicated with the sampling device body;
the sampling device body comprises a sample collecting box arranged below the chute, a sample box arranged in the sample collecting box, and a weighing device arranged at the bottom of the sample box.
2. The on-line automatic uniform continuous sampling device of the rotary hearth furnace according to claim 1, characterized in that: the sample box is communicated with the through hole through a guide pipe, an opening degree adjusting device is further arranged between the guide pipe and the through hole, and the weighing device is communicated with a controller.
3. The on-line automatic uniform continuous sampling device of the rotary hearth furnace according to claim 2, characterized in that: the honeycomb duct is the tubular structure of big end down in diameter, and its top size is greater than the through-hole diameter of elephant trunk bottom.
4. The on-line automatic uniform continuous sampling device of the rotary hearth furnace according to claim 2, characterized in that: the opening degree adjusting device comprises a valve plate arranged on the through hole and a connecting rod mechanism connected with the valve plate, and the connecting rod mechanism is connected with a driving device.
5. The on-line automatic uniform continuous sampling device of the rotary hearth furnace according to claim 4, characterized in that: the opening degree adjusting device also comprises an opening degree indicator and a signal feedback device, and the signal feedback device is communicated with the controller.
6. The on-line automatic uniform continuous sampling device of the rotary hearth furnace according to claim 4, characterized in that: the driving device is an electric, pneumatic or hydraulic power source which is connected with the connecting rod mechanism and acts on the valve to complete opening and closing actions by driving the connecting rod mechanism; the driving device is connected with the controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221037367.7U CN217466269U (en) | 2022-04-28 | 2022-04-28 | Online automatic uniform continuous sampling device of rotary hearth furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221037367.7U CN217466269U (en) | 2022-04-28 | 2022-04-28 | Online automatic uniform continuous sampling device of rotary hearth furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217466269U true CN217466269U (en) | 2022-09-20 |
Family
ID=83273420
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221037367.7U Active CN217466269U (en) | 2022-04-28 | 2022-04-28 | Online automatic uniform continuous sampling device of rotary hearth furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217466269U (en) |
-
2022
- 2022-04-28 CN CN202221037367.7U patent/CN217466269U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104388669B (en) | A kind of method improved containing chromium type vanadium titanium sintered ore rotary drum strength | |
| CN102559981B (en) | Iron making method and device by virtue of gas-based smelting reduction | |
| CN113359465B (en) | System and method for intelligently controlling sintering ingredient components | |
| CN217466269U (en) | Online automatic uniform continuous sampling device of rotary hearth furnace | |
| CN105970001A (en) | Method for manufacturing high-grade direct zinc oxide by virtue of rotary kiln | |
| Osugi et al. | Effect of oxidation state of iron ions on the viscosity of alkali silicate melts | |
| CN105842065B (en) | The evaluation method of smelter coke post reaction strength | |
| Flores et al. | Study on reducing and melting behavior of mill scale/petroleum coke blend | |
| CN110531026B (en) | Method for measuring suspension state reaction kinetics of powder material | |
| CN102471822B (en) | Unfired carbon-containing agglomerate and production method therefor | |
| CN112251610A (en) | Titanium carbide slag and smelting method thereof | |
| CN102965521B (en) | Method for nickel laterite ore through adopting wet pellet smelting lower temperature reduction mode | |
| CN106006716A (en) | Method for producing direct-method zinc oxide by utilizing belt type roasting machine | |
| CN110592368A (en) | Small-size continuous suspension roasting device | |
| CN206497000U (en) | A kind of device for measuring high temperature metallurgical properties of coke | |
| CN105067478A (en) | Method and device for detecting powder rate of dry pellets | |
| CN103713600B (en) | Automatic control system for producing potash fertilizer | |
| CN210923482U (en) | Flux adding control system based on ultraviolet Raman spectrum analysis | |
| CN210071715U (en) | Thermal state test device for melting gasification furnace | |
| CN219455784U (en) | Automatic continuous detection device for high-temperature compressive strength of blast furnace burden under multi-element atmosphere | |
| PT1439237E (en) | Recycling process for electric arc furnace dust and product obtained therefrom | |
| CN208968283U (en) | A kind of use for laboratory electrode paste sinter molding device | |
| CN103981330A (en) | Method and device for measuring carbon content of molten steel | |
| CN113421618B (en) | Method for predicting sulfur content in blast furnace gas | |
| CN107699647A (en) | A kind of charging of blast furnace automatic control system and its control method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |