CN114260434A - Automatic covering slag adding device - Google Patents
Automatic covering slag adding device Download PDFInfo
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- CN114260434A CN114260434A CN202111656618.XA CN202111656618A CN114260434A CN 114260434 A CN114260434 A CN 114260434A CN 202111656618 A CN202111656618 A CN 202111656618A CN 114260434 A CN114260434 A CN 114260434A
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- pipe
- outer pipe
- opening
- covering slag
- air inlet
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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
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
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Abstract
The device for automatically adding the casting powder comprises a storage box, a discharging pipe arranged at the lower end of the storage box, an outer pipe arranged obliquely, a conveying pipe arranged in the outer pipe and connected with the discharging pipe, an air inlet pipe unit arranged on the outer pipe, and a discharging pipe unit arranged at the end part of the outer pipe. The automatic feeding device achieves the purpose of material conveying by using air pressure difference by arranging the outer pipe, the conveying pipe, the air inlet pipe unit and the discharging pipe unit, has the advantages of stable feeding and adjustable feeding speed, and has obvious advantages compared with a scheme of feeding by relying on the dead weight acting force of the covering slag in the traditional automatic feeding device.
Description
Technical Field
The invention belongs to the technical field of crystallizer covering slag feeding equipment, and particularly relates to an automatic covering slag feeding device.
Background
In the continuous casting production, the casting powder is continuously added into the liquid molten steel in the crystallizer, so that the secondary oxidation of the molten steel can be effectively prevented, oxide inclusions in the steel billet are reduced, and the friction between the steel billet and a copper pipe of the crystallizer is lubricated. The addition of the covering slag has certain influence on the quality of a casting blank and is an indispensable process in a continuous casting production process.
At present, the mode of adding the covering slag in the continuous casting production is mainly manual adding, and an operator pushes the covering slag at the edge of the crystallizer into the crystallizer by using a self-made small shovel; and the labor intensity of operators is high, particularly in summer, the temperature around the crystallizer is high, the environment is severe, and the adverse effect on the health of the operators can be caused.
The file with the authorization notice number of CN212310797U discloses a crystallizer covering slag automatic feeder, including case, covering slag evacuating device, reposition of redundant personnel feeding device, feed inlet, connecting rod, covering slag flow disc, vibrating device and feed opening of gathering together, covering slag evacuating device locates on the case that gathers together, reposition of redundant personnel feeding device locates in the case that gathers together, the feed inlet is located on the case that gathers together, covering slag flow disc is located on the connecting rod, vibrating device locates on the covering slag flow disc.
However, the conveying of the protective slag between the collecting box, the protective slag flowing disc and the discharging opening in the device almost completely depends on the self-weight action of the protective slag, the discharging efficiency is not high, the discharging speed is not adjustable, and the device has a plurality of limitations when being applied to the actual continuous casting production.
Disclosure of Invention
In view of the above problems, the present invention aims to provide an automatic covering slag adding device, which achieves the purpose of material conveying by using air pressure difference by arranging an outer pipe, a conveying pipe, an air inlet pipe unit and a discharging pipe unit, and has the advantages of stable material feeding and adjustable material feeding speed.
In order to achieve the purpose, the technical scheme of the invention is as follows:
the device for automatically adding the casting powder comprises a storage box, a discharging pipe arranged at the lower end of the storage box, an outer pipe arranged obliquely, a conveying pipe arranged in the outer pipe and connected with the discharging pipe, an air inlet pipe unit arranged on the outer pipe, and a discharging pipe unit arranged at the end part of the outer pipe.
As a further preferable aspect of the present invention, the intake pipe unit includes an intake pipe provided on the outer pipe, a check valve provided on the intake pipe, and a control button provided on the intake pipe and controlling the opening and closing of the check valve.
As a further preferable feature of the present invention, the exhaust pipe unit further includes a support frame provided at a lower end of the outer pipe on a side close to the exhaust pipe unit, and a cylinder shaft provided at a lower end of the support frame.
As a further preferred aspect of the present invention, the discharge pipe unit includes a telescopic pipe provided at an end of the outer pipe, and a discharge pipe provided at an end of the telescopic pipe.
As a further preferable mode of the present invention, the discharge pipe unit further includes a fixing block disposed on an inner wall of the outer pipe near the end portion, and a groove disposed on one side of the fixing block near the extension pipe and engaged with the orifice of the extension pipe.
As a further preferable mode of the present invention, the discharge pipe unit further includes an arc-shaped groove provided on a side of the fixing block close to the delivery pipe and engaged with the orifice of the delivery pipe.
As a further optimization of the invention, the number of the fixing blocks is 2-4, the fixing blocks are distributed in a radial direction, and an air channel is formed between every two adjacent fixing blocks.
As a further preferable aspect of the present invention, the discharge pipe unit further includes a reinforcing block provided at a side end of the extension pipe and inserted into the groove, a first opening provided in the reinforcing block, a second opening provided in the fixing block and corresponding to the first opening, and a stopper provided in the first opening and inserted into the second opening.
In a further preferred embodiment of the present invention, the stopper includes a straight tube, an elastic tube provided at an end of the straight tube, and an elastic ball provided in the elastic tube.
In conclusion, the invention has the following beneficial effects:
the invention achieves the purpose of conveying materials by utilizing the air pressure difference by arranging the double-layer pipeline and arranging the mode of forming the negative pressure area at the outlet of the pipeline. This scheme had both improved the reinforced efficiency of covering slag, and it is more stable to feed in raw material in addition, and feed rate is adjustable, and the scheme that relies on the dead weight effort of covering slag to realize feeding in traditional automatic material conveying device has obvious advantage.
The device simplifies the material conveying structure in the traditional equipment, and has the advantages of flexible and adjustable structure, simple and convenient operation and control and low equipment operation cost.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
FIG. 2 is a schematic view of the position and structure of the inlet pipe unit and the outlet pipe unit according to the present invention.
FIG. 3 is a schematic illustration of a partial structure of a tapping pipe unit according to the invention.
FIG. 4 is a schematic sectional view of the delivery tube of the present invention.
FIG. 5 is a schematic sectional view of a telescopic tube according to the present invention.
Fig. 6 is a schematic view of the position structure of the telescopic tube of the present invention.
Fig. 7 is a schematic structural diagram of a limiting element according to the present invention.
FIG. 8 is a schematic diagram of a flexible tube according to the present invention.
Description of the drawings: the device comprises a storage tank 11, a blanking pipe 12, an outer pipe 1, a sealing flange 101, a conveying pipe 2, an air inlet pipe unit 3, an air inlet pipe 301, a one-way valve 302, a control button 303, a material outlet pipe unit 4, an extension pipe 401, a material outlet pipe 402, a fixing block 403, an air channel a, a groove 404, an arc-shaped groove 405, a reinforcing block 406, a first opening 407, a second opening 408, a limiting part 409, a straight pipe 409a, an elastic pipe 409b, an elastic ball 409c, a support frame 5 and a cylinder shaft 6.
Detailed Description
Example 1
The device for automatically adding the mold flux provided by the embodiment comprises a storage tank 11, a blanking pipe 12 arranged at the lower end of the storage tank 11, an outer pipe 1 which is obliquely arranged, a conveying pipe 2 which is arranged in the outer pipe 1 and connected with the blanking pipe 12, an air inlet pipe unit 3 arranged on the outer pipe 1, and a discharge pipe unit 4 arranged at the end part of the outer pipe 1, as shown in fig. 1. As shown in fig. 2, the intake pipe unit 3 includes an intake pipe 301 disposed on the outer pipe 1, a check valve 302 disposed on the intake pipe 301, and a control button 303 disposed on the intake pipe 301 and used for controlling the on-off of the check valve 302. The discharge pipe unit 4 comprises a discharge pipe 402 connected with the outer pipe 1, an outlet with a gradually reduced inner diameter can be arranged at the discharge pipe 402, so that the flow speed at the outlet of the delivery pipe 2 can be accelerated, and a negative pressure region can be formed.
In this embodiment, outer tube 1 with conveyer pipe 2 constitutes double-deck pipeline, be used for carrying the covering slag in the conveyer pipe 2, outer tube 1 with space between the conveyer pipe 2 is used for making compressed air let in, intake pipe 301 is used for outer compressed air feeder, check valve 302 is used for controlling compressed air's the letting in, control button 303 is used for operating personnel to control the switch of check valve 302. In the device, in order to ensure that the negative pressure area exists stably, a sealing flange 101 can be arranged at the connecting port of the outer pipe 1 and the conveying pipe 2 to keep sealing, so that air leakage is avoided.
The working principle of the device is as follows: an operator opens the one-way valve 302 through the control button 303, compressed air enters the outer pipe 1 through the air inlet pipe 301, a negative pressure area is formed in front of an outlet of the conveying pipe 2, protective slag is sucked into the conveying pipe 2 from the storage box 11 and is discharged from the outlet of the conveying pipe 2 through the discharge pipe 402, and therefore automatic feeding is achieved. When the operator closes the one-way valve 302 by means of the control button 303, the negative pressure disappears and the feeding stops.
Rely on the dead weight effort of covering slag to realize reinforced among traditional automatic material conveying device, this device has carried out configuration optimization on this basis, through the mode that sets up a formation negative pressure zone in the covering slag exit, utilizes the pressure differential to carry out defeated material, has both improved the reinforced efficiency of covering slag, and reinforced more stable moreover, and the regulation of feed rate only needs to change the air input of intake pipe 301 department can realize. In addition, the device simplifies the material conveying structure in the traditional equipment, the structure is flexible and adjustable, the operation is simple and convenient, and the operation cost of the equipment is effectively controlled.
Example 2
Compared with the embodiment 1, the difference of this embodiment is that, as shown in fig. 1 to 8, a support frame 5 including a lower end of the outer pipe 1 near the discharge pipe unit 4 and a cylinder shaft 6 disposed at a lower end of the support frame 5 are additionally provided, and the cylinder shaft 6 is connected to an external cylinder.
The purpose of adjusting the inclination angle of the outer tube 1 is achieved by arranging the adjusting structure of the support frame 5 and the cylinder shaft 6, and the advantage of the arrangement is that after the negative pressure area is stably formed, an operator can also control the inclination degree of the outer tube 1 to achieve the purpose of assisting in controlling the feeding speed.
In this embodiment, since the tapping pipe 402 is connected to the lower mold, when the inclination degree of the outer pipe 1 is changed, the outlet of the tapping pipe 402 is changed accordingly. In order to avoid this negative effect and to increase the flexibility of the tapping pipe 402, the present embodiment optimizes the tapping pipe unit 4, including in particular: an extension tube 401, a fixed block 403 arranged on the inner wall of the outer tube 1 near the end part, and a groove 404 arranged on one side of the fixed block 403 near the extension tube 401 and engaged with the nozzle of the extension tube 401 are arranged between the outer tube 1 and the discharge tube 402. The number of the fixing blocks 403 is 4, the fixing blocks are distributed in the radial direction, and an air channel a is formed between every two adjacent fixing blocks 403, so that the design is used for ensuring that a path through which compressed air passes is not blocked, and the formation of a negative pressure area is not influenced.
The above-mentioned discharging pipe unit 4 of this scheme's configuration optimization's advantage lies in: firstly, the telescopic property of the extension tube 401 can ensure that the connection position of the discharge tube 402 and the crystallizer is unchanged, and when the inclination degree of the outer tube 1 is changed, the length of the extension tube 401 can be adjusted; secondly, the extension pipe 401 is a flexible pipe, so that the resistance to the impact force generated by the mold flux during the mold flux discharging process is better, and the abrasion of the pipeline is reduced; thirdly, the design that the extension tube 401 and the outer tube 1 are detachable enables the extension tube 401 to be replaced periodically, the extension tube 401 can be an existing PVC extension tube, replacement cost is low, and the outer tube 1 and the discharge tube 402 which are high in cost do not need to be replaced.
In this embodiment, in order to reduce the problem that the delivery pipe 2 shakes inside the outer pipe 1, the fixing block 403 is close to the arc-shaped groove 405 on one side of the delivery pipe 2 and engaged with the pipe orifice of the delivery pipe 2, and the shape of the arc-shaped groove 405 corresponds to the pipe orifice of the delivery pipe 2.
In this embodiment, considering that the joint of the telescopic tube 401 and the outer tube 1 is located on the windward side and is easy to fall off under the action of the airflow, the further strengthening of the joint structure of the telescopic tube 401 and the outer tube 1 specifically includes: a reinforcing block 406 disposed at a side end of the extension tube 401 and inserted into the recess 404, a first opening 407 disposed at the reinforcing block 406, a second opening 408 disposed at the fixing block 403 and corresponding to the first opening 407, and a stopper 409 disposed at the first opening 407 and inserted into the second opening 408. The limiting member 409 includes a straight tube 409a, an elastic tube 409b disposed at an end of the straight tube 409a, and an elastic ball 409c disposed in the elastic tube 409 b. The reinforcing blocks 406 are arranged at two side ends of the nozzle of the telescopic pipe 401, so that the telescopic function of the telescopic pipe 401 body is not influenced.
In this embodiment, the elastic tube 409b in the limiting member 409 may be formed by a plurality of elastic protection plates, and has a potential energy of bending radially outward, and the elastic tube 409b is kept in a compressed state when located in the first opening 407 or the second opening 408; when the elastic tube 409b passes through the second opening 408, the elastic tube 409b is unfolded, thereby playing a role of limiting clamping.
Further, since the orifice of the elastic tube 409b is on the windward side, the limiting and locking effect is unstable, an elastic ball 409c is arranged in the elastic tube 409b, the elastic ball 409c is fixed in the elastic tube 409b and has an inner diameter slightly larger than the aperture of the first opening 407 or the second opening 408 when not being pressed, when the elastic tube 409b passes through the second opening 408, the elastic ball 409c returns to the original size to block the orifice of the elastic tube 409b, and the larger the air flow speed is, the closer the position of the elastic ball 409c to the second opening 408 is to the position of the elastic tube 409b, the better the locking and limiting effect is. The structure overcomes the problem that the connection part of the extension tube 401 and the outer tube 1 falls off, when the extension tube 401 needs to be disassembled, an operator pulls the straight tube 409a on the outside, the elastic tube 409b and the elastic ball 409c are compressed again to enter the second opening 408 and the first opening 407 until the whole limiting piece 409 is drawn out, and then the extension tube 401 is pulled out.
The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the invention as defined in the appended claims.
Claims (9)
1. The device for automatically adding the casting powder comprises a storage box (11), a discharging pipe (12) arranged at the lower end of the storage box (11), and is characterized by further comprising an outer pipe (1) which is obliquely arranged, a conveying pipe (2) which is arranged in the outer pipe (1) and connected with the discharging pipe (12), an air inlet pipe unit (3) arranged on the outer pipe (1), and a discharging pipe unit (4) arranged at the end part of the outer pipe (1).
2. The automatic covering slag device according to claim 1, wherein the air inlet pipe unit (3) comprises an air inlet pipe (301) arranged on the outer pipe (1), a one-way valve (302) arranged on the air inlet pipe (301), and a control button (303) arranged on the air inlet pipe (301) and used for controlling the on-off of the one-way valve (302).
3. The apparatus for automatically adding mold flux according to claim 1, further comprising a support frame (5) provided at a lower end of the outer pipe (1) on a side close to the tapping pipe unit (4), and a cylinder shaft (6) provided at a lower end of the support frame (5).
4. An automatic mold flux feeding apparatus according to claim 3, wherein said discharge pipe unit (4) comprises a telescopic pipe (401) provided on an end portion of said outer pipe (1), a discharge pipe (402) provided on an end portion of said telescopic pipe (401).
5. The automatic covering slag device according to claim 4, wherein the discharging pipe unit (4) further comprises a fixing block (403) disposed on the inner wall of the outer pipe (1) near the end portion, and a groove (404) disposed on the side of the fixing block (403) near the telescopic pipe (401) and engaged with the nozzle of the telescopic pipe (401).
6. The automatic covering slag device according to claim 5, characterized in that said tapping pipe unit (4) further comprises an arc-shaped groove (405) provided on the side of said fixing block (403) close to said delivery pipe (2) and engaging with the mouth of said delivery pipe (2).
7. The automatic covering slag device as claimed in claim 5, wherein the number of the fixing blocks (403) is 2-4, the fixing blocks are distributed in a radial direction, and an air channel (a) is formed between two adjacent fixing blocks (403).
8. An automatic mold flux feeding apparatus according to claim 5, wherein said discharging pipe unit (4) further comprises a reinforcing block (406) provided at a side end of said extension pipe (401) and inserted into said recess (404), a first opening (407) provided at said reinforcing block (406), a second opening (408) provided at said fixing block (403) and corresponding to said first opening (407), and a stopper (409) provided at said first opening (407) and inserted into said second opening (408).
9. The automatic mold flux feeding apparatus according to claim 7, wherein said stopper (409) comprises a straight tube (409 a), an elastic tube (409 b) provided on an end of said straight tube (409 a), and an elastic ball (409 c) provided in said elastic tube (409 b).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111656618.XA CN114260434B (en) | 2021-12-31 | 2021-12-31 | Automatic device of covering slag adds |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111656618.XA CN114260434B (en) | 2021-12-31 | 2021-12-31 | Automatic device of covering slag adds |
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| CN114260434A true CN114260434A (en) | 2022-04-01 |
| CN114260434B CN114260434B (en) | 2023-07-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202111656618.XA Active CN114260434B (en) | 2021-12-31 | 2021-12-31 | Automatic device of covering slag adds |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2378729A1 (en) * | 1977-02-01 | 1978-08-25 | Chollet Jacques | Covering powder for heat insulating metal melts - consisting of granules of silicate coated with slag |
| RU2006124479A (en) * | 2006-07-07 | 2008-01-20 | Институт теоретической и прикладной механики им. С.А. Христиановича СО РАН (ИТПМ СО РАН) (RU) | DEVICE FOR GAS-DYNAMIC SPRAYING OF POWDER MATERIALS |
| CN202861349U (en) * | 2012-09-20 | 2013-04-10 | 济钢集团有限公司 | Billet caster casting powder automatic adding device |
| CN103357832A (en) * | 2013-07-29 | 2013-10-23 | 宝山钢铁股份有限公司 | Pneumatic material feeding type automatic slag adding machine |
| CN203356558U (en) * | 2013-07-16 | 2013-12-25 | 武汉钢铁(集团)公司 | Mold flux device for automatic mold flux pusher of mold |
| WO2017150787A1 (en) * | 2016-03-02 | 2017-09-08 | 주식회사 포스코 | Device for injecting molten material, casting equipment using same, and casting method |
| CN208085700U (en) * | 2018-03-30 | 2018-11-13 | 江铃控股有限公司 | A kind of vacuum hose and automobile |
| CN109562579A (en) * | 2016-04-15 | 2019-04-02 | Cc3D有限公司 | For continuously manufacturing head and the system of composite hollow structure |
-
2021
- 2021-12-31 CN CN202111656618.XA patent/CN114260434B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2378729A1 (en) * | 1977-02-01 | 1978-08-25 | Chollet Jacques | Covering powder for heat insulating metal melts - consisting of granules of silicate coated with slag |
| RU2006124479A (en) * | 2006-07-07 | 2008-01-20 | Институт теоретической и прикладной механики им. С.А. Христиановича СО РАН (ИТПМ СО РАН) (RU) | DEVICE FOR GAS-DYNAMIC SPRAYING OF POWDER MATERIALS |
| CN202861349U (en) * | 2012-09-20 | 2013-04-10 | 济钢集团有限公司 | Billet caster casting powder automatic adding device |
| CN203356558U (en) * | 2013-07-16 | 2013-12-25 | 武汉钢铁(集团)公司 | Mold flux device for automatic mold flux pusher of mold |
| CN103357832A (en) * | 2013-07-29 | 2013-10-23 | 宝山钢铁股份有限公司 | Pneumatic material feeding type automatic slag adding machine |
| WO2017150787A1 (en) * | 2016-03-02 | 2017-09-08 | 주식회사 포스코 | Device for injecting molten material, casting equipment using same, and casting method |
| CN109562579A (en) * | 2016-04-15 | 2019-04-02 | Cc3D有限公司 | For continuously manufacturing head and the system of composite hollow structure |
| CN208085700U (en) * | 2018-03-30 | 2018-11-13 | 江铃控股有限公司 | A kind of vacuum hose and automobile |
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| CN114260434B (en) | 2023-07-07 |
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Effective date of registration: 20230601 Address after: Building 46, No. 618, Tianshuiqiao Road, Huzhou City, Zhejiang Province, 313000 Applicant after: Huzhou Yongxing Special Stainless Steel Co.,Ltd. Address before: 313000 No. 618, luoshuiqiao Road, Yangjiabu, Huzhou Economic and Technological Development Zone, Huzhou City, Zhejiang Province Applicant before: Yongxing special material technology Co.,Ltd. |
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