CN113776348B - Device for preventing blowout and scalding for cleaning blockage of cyclone preheater of cement kiln - Google Patents
Device for preventing blowout and scalding for cleaning blockage of cyclone preheater of cement kiln Download PDFInfo
- Publication number
- CN113776348B CN113776348B CN202110916357.4A CN202110916357A CN113776348B CN 113776348 B CN113776348 B CN 113776348B CN 202110916357 A CN202110916357 A CN 202110916357A CN 113776348 B CN113776348 B CN 113776348B
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- Prior art keywords
- blowout
- cyclone preheater
- scalding
- hole
- cement kiln
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- 239000004568 cement Substances 0.000 title claims abstract description 27
- 238000004140 cleaning Methods 0.000 title claims abstract description 18
- 230000002633 protecting effect Effects 0.000 claims abstract description 30
- 239000000463 material Substances 0.000 claims description 30
- 230000001681 protective effect Effects 0.000 claims description 25
- 230000000903 blocking effect Effects 0.000 claims description 15
- 230000002265 prevention Effects 0.000 claims description 10
- 239000004744 fabric Substances 0.000 claims description 3
- 206010053615 Thermal burn Diseases 0.000 abstract description 10
- 230000006872 improvement Effects 0.000 description 7
- 238000004519 manufacturing process Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 239000000843 powder Substances 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 238000007689 inspection Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 239000000725 suspension Substances 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 235000012054 meals Nutrition 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
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
- F27D25/00—Devices or methods for removing incrustations, e.g. slag, metal deposits, dust; Devices or methods for preventing the adherence of slag
-
- 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
- F27D13/00—Apparatus for preheating charges; Arrangements for preheating charges
Abstract
The application discloses a blowout and scald preventing device for cleaning blockage of a cyclone preheater of a cement kiln, which comprises a supporting seat, a baffle, a supporting column, a spring, a protecting piece and a protecting sleeve; one end of the supporting seat is connected with the cyclone preheater, the other end of the supporting seat is movably connected with one end of the protecting piece, and the other end of the protecting piece is connected with the protecting sleeve; the support seat is provided with a connecting hole and a counter bore, and at least two symmetrical support columns are distributed on the circumference of the bottom of the counter bore; the baffle is arranged in the counter bore, is connected with the support column through a spring and is suspended in the counter bore, and the baffle is provided with a first through hole. The application has the characteristics of being used for protecting the cyclone preheater of the cement kiln when the cyclone preheater is blocked, effectively avoiding the damage to operators when the cyclone preheater is blocked, and the like.
Description
Technical Field
The application relates to a blowout and scald preventing device for cleaning blockage of a cyclone preheater of a cement kiln.
Background
In the cement production process, raw meal powder with fineness of 15+/-2% is preheated and decomposed in a suspension state in each stage of preheater in a cyclone preheater system at the temperature of 300-900 ℃, and in the decomposition process, blockage can occur in a cyclone barrel or a blanking pipe position of a certain stage of preheater, or the sticky fluidity of the material is poor, or a large block of crust in the cyclone barrel falls off, or castable in the cyclone barrel falls off to cause blockage faults due to unmatched operation parameters such as temperature, feeding quantity, coal consumption, system air quantity and the like. If the blockage cannot be timely dredged, the raw material powder is sticky and sintered under the high-temperature condition to form a hard large lump, the serious production is forced to be stopped, huge loss is caused for enterprises, and the accident that the raw material powder is scalded by the high-temperature powder in the blockage treatment process is frequently caused.
The failure point of the material blockage of the preheater in the cement production enterprise is mainly at the cone part of the cyclone preheater and the blanking pipe thereof, when the blockage is cleared, the crowbar and the pipe of the high-temperature resistant protective clothing are worn manually and extend into the cone part of the cyclone preheater or the blanking pipe thereof from the inspection hole for clearing, and if hard crust or castable is provided, the air pick and the pick drill rod are needed for breaking. The cleaning process is inevitably free from splashing materials, some materials can fly outwards from the inspection hole, and high-temperature materials are easy to damage the operation of the blocking cleaning personnel.
Disclosure of Invention
The application aims at overcoming the defects of the prior art and provides a blowout and scald preventing device for cleaning the blockage of a cyclone preheater of a cement kiln.
In order to achieve the above object of the present application, the following technical scheme is adopted:
the device comprises a supporting seat, a baffle, a supporting column, a spring, a protecting piece and a protecting sleeve; one end of the supporting seat is connected with the cyclone preheater, the other end of the supporting seat is movably connected with one end of the protecting piece, and the other end of the protecting piece is connected with the protecting sleeve; the support seat is provided with a connecting hole and a counter bore, and at least two symmetrical support columns are distributed on the circumference of the bottom of the counter bore; the baffle is arranged in the counter bore, is connected with the support column through a spring and is suspended in the counter bore, and the baffle is provided with a first through hole.
Working principle:
checking the blocking position of the material through an inspection hole on the cyclone preheater, then perforating the cyclone preheater close to the blocking position, and installing the blowout and scald preventing device for the blocking removal of the cyclone preheater of the cement kiln on the hole; the blockage removing tool is used for removing blockage of blocked materials through the blockage removing blowout and scalding preventing device for the cyclone preheater of the cement kiln, and the blockage removing falling or splashing materials are blocked by the blockage removing blowout and scalding preventing device for the cyclone preheater of the cement kiln, so that the falling or splashing materials can be effectively prevented from touching blockage removing personnel.
As a further improvement of the technical scheme, the blowout and scald preventing device for the blocking removal of the cyclone preheater of the cement kiln further comprises a bolt; the supporting seat is connected with the protection piece through bolts.
As a further improvement of the technical scheme, the blowout and scald preventing device for the blocking removal of the cyclone preheater of the cement kiln further comprises a support and a supporting hole; at least three supports are distributed on the circumferential side surface of the supporting seat; a plurality of supporting holes are circumferentially distributed on the bottom surface of the counter bore and are used for installing supporting columns.
As a further improvement of the technical scheme, the blowout and scald preventing device for the blocking removal of the cyclone preheater of the cement kiln further comprises a hanging lug; the circumference side of baffle is equipped with a plurality of hanging lugs.
As a further improvement of the technical scheme, the blowout and scald preventing device for the blocking removal of the cyclone preheater of the cement kiln further comprises a second through hole and a through hole; a plurality of second through holes are circumferentially distributed on the circumferential edge of the protective piece; the axial center of the guard piece is provided with a through hole.
As a further improvement of the technical scheme, the protective sleeve is in a conical cylinder structure; the large diameter end of the cone structure is connected with the protective piece, and the small diameter end is open.
As a further improvement of the technical scheme, the protective sleeve is made of high-temperature-resistant cloth.
As a further improvement of the technical scheme, the spring adopts a cylindrical spiral spring.
Compared with the prior art, the application has the advantages that: the application is applied to the blockage removal work of the cyclone preheater of the cement kiln, and can effectively prevent blockage removal materials from falling or splashing outwards, thereby effectively protecting blockage removal personnel; when the blockage is cleared, the blockage clearing tool sequentially passes through the protective sleeve, the protective piece, the first through hole of the baffle plate and the supporting seat, then extends into the cyclone preheater and touches the blocked material, and the blocked material can be cleared by the blockage clearing tool. When the materials generated by the blockage removal fall into the supporting seat, the baffle blocks the materials in the supporting seat, so that the materials are prevented from further entering the protecting piece; sometimes some fine materials can fall into the protective piece from the first through hole of the baffle plate, and then the protective piece falls into the protective sleeve, and the protective sleeve can prevent the materials from directly touching the blocking-clearing personnel, so that a second protective effect is achieved.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. Like elements or portions are generally identified by like reference numerals throughout the several figures. In the drawings, elements or portions thereof are not necessarily drawn to scale.
FIG. 1 is a schematic diagram of a device for preventing blowout and scalding for cleaning the blockage of a cyclone preheater of a cement kiln, which is arranged on the cyclone preheater; the figure also shows that the blockage removing tool passes through the application and stretches into the cyclone preheater to remove blockage;
FIG. 2 is a schematic structural view of a blowout and scald preventing device for cleaning blockage of a cyclone preheater of a cement kiln;
FIG. 3 is a schematic view of an expanded structure of the present application;
FIG. 4 is a schematic view of the connection between the support base and the baffle plate according to the present application;
FIG. 5 is a schematic cross-sectional view of a support base according to the present application;
FIG. 6 is a schematic diagram of a front view of a support base according to the present application;
FIG. 7 is a schematic view of a baffle plate according to the present application;
FIG. 8 is a left side schematic view of FIG. 8;
FIG. 9 is a schematic view of the structure of the guard of the present application;
FIG. 10 is a schematic view of the cone mounted to a cyclone preheater in accordance with the present application;
FIG. 11 is a schematic view showing the structure of a drop tube installed in a cyclone preheater according to the present application;
the names and serial numbers of the components in the figure: 1-a device for preventing the blowout and scalding, 11-a protective sleeve, 12-a protective piece, 121-a second through hole, 122-a through hole, 13-a bolt, 14-a support column, 15-a baffle plate, 151-a first through hole, 152-a hanging lug, 16-a support seat, 161-a support seat, 162-a connecting hole, 163-a counter bore, 164-a support hole, 17-a spring, 2-a cyclone preheater and 3-a blocking removing tool.
Detailed Description
In order to make the technical solution of the present application better understood by those skilled in the art, the technical solution of the present application will be clearly and completely described with reference to the accompanying drawings and examples, and it is apparent that the described examples are only a part of examples of the present application, and all other examples obtained by those skilled in the art without making any inventive effort are intended to be within the scope of the present application.
Example 1:
as shown in fig. 1-11, a blowout and scalding prevention device for cleaning blockage of a cyclone preheater of a cement kiln comprises a supporting seat 16, a baffle 15, a supporting column 14, a spring 17, a protection piece 12 and a protection sleeve 11; one end of the supporting seat 16 is connected with the cyclone preheater 2, the other end of the supporting seat is movably connected with one end of the protecting piece 12, and the other end of the protecting piece 12 is connected with the protecting sleeve 11; the supporting seat 16 is provided with a connecting hole 162 and a counter bore 163, and at least two symmetrical supporting columns 14 are distributed on the circumference of the bottom of the counter bore 163; the baffle 15 is disposed in the counter bore 163, connected to the support column 14 via a spring 17, and suspended in the counter bore 163, and the baffle 15 is provided with a first through hole 151.
When the baffle 15 is installed in the counter bore 163, the baffle 15 can be attached to the bottom surface of the counter bore 163, the distance between the baffle and the bottom surface of the counter bore is reduced, and the falling of materials to the protection piece can be better prevented.
The working mode is as follows:
firstly, checking the blocking position of materials through a checking hole on the cyclone preheater, then opening holes on the cyclone preheater close to the blocking position, and installing the blowout and scald preventing device for the blocking removal of the cyclone preheater of the cement kiln on the hole.
When the blockage is cleared, the blockage clearing tool 3 sequentially passes through the protective sleeve 11, the protective piece 12, the first through hole of the baffle 15 and the supporting seat 16, then extends into the cyclone preheater and touches the blockage materials, and the blockage clearing tool can be used for clearing the blockage materials.
The blockage removing tool 3 penetrates through the baffle plate 15, the baffle plate 15 is in a suspended state on the support column 14 through the spring 17, and the baffle plate 15 plays a supporting role on the blockage removing tool 3; the baffle 15 can swing relative to the counter bore 163 of the supporting seat 16 under the action of the spring 17, so that the blockage removing tool 3 swings by means of the baffle 15, and the cleaning range of the blockage removing tool 3 can be greatly enlarged.
In the process of clearing the blockage, the cleared material falls into the holes, and when falling into the supporting seat 16, the baffle 15 blocks the material at the moment, so that the material is prevented from entering the protecting piece 12. Sometimes, some fine materials can fall into the protecting piece 12 from the first through hole 151 of the baffle 15, and then the protecting piece 12 falls into the protecting sleeve 11, and the protecting sleeve 11 can prevent the materials from directly touching the blocking-cleaning personnel, so that an effective protecting effect is achieved.
Example 2:
compared with example 1, the difference is that: a connection structure form of the supporting seat and the protecting piece is provided.
The support seat 16 is connected with the guard 12 by bolts 13. The bolt can be convenient for splice and separation between supporting seat and the guard.
Example 3:
compared with example 2, the difference is that: in order to facilitate the connection of the support seat and the guard, a support 161 is added; to facilitate the mounting of the support post within the counterbore, support holes 164 are added.
At least two seats 161 are distributed on the circumferential side of the support seat 16. The support 161 is used for movably connecting the support and the guard. The number of the holders 161 is usually 2, 3, 4, 6 or 8, etc.
One end of the screw in the bolt 13 penetrates the guard 12 and the support 161 and is connected with the nut.
A plurality of supporting holes 164 are circumferentially distributed on the bottom surface of the counter bore 163, and the supporting holes 164 are used for installing the supporting columns 14.
The support column 14 is inserted into the support hole 164 and is fastened to the support hole 164.
Example 4:
the difference compared to any of examples 1-3 is that: to facilitate the connection of the spring to the baffle plate, a cantilever tab 152 is added.
The circumferential side of the baffle 15 is provided with a plurality of hanging lugs 152. The suspension lugs 152 are connected to the support posts 14 by springs 13.
Example 5:
the difference compared to any of examples 1-4 is that: in order to facilitate the connection of the guard with the support base, a second through hole 121 is additionally arranged; to facilitate the communication of the guard with the first through hole in the baffle, the guard is provided with a through hole 122.
The guard 12 has a plurality of second through holes 121 circumferentially distributed at its circumferential edge. The second through hole is formed corresponding to the support 161 on the support seat 16, so that the second through hole on the protection piece can be aligned with the support on the support seat, and the protection piece and the support seat can be spliced by the bolt penetrating through the second through hole and the support seat.
The axial center of the guard 12 is provided with a through hole 122. The shield 12 communicates with a counterbore 163 in the support base 16 with a through bore 122.
Example 6:
the difference compared to any of examples 1-5 is that: a structural form of the protective sheath is given.
The protective sleeve 11 is in a conical cylinder structure; the large diameter end of the cone structure is connected with the protecting piece 12, and the small diameter end is open.
The small diameter end of the cone is outwardly directed relative to the guard 12 so that when material falls into the guard, the material is effectively prevented from continuing to fall outwardly.
Example 7:
the difference compared to any of examples 1-6 is that: a manufacturing material of the protective sleeve is provided.
The protective sleeve 11 is made of high-temperature-resistant cloth.
Example 8:
the difference compared to any of examples 1-7 is that: a structural form of the spring is given.
The spring 17 is a cylindrical coil spring.
It is apparent that the above examples are given by way of illustration only and are not limiting of the embodiments. Other variations or modifications of the above teachings will be apparent to those of ordinary skill in the art. It is not necessary here nor is it exhaustive of all embodiments. While still being within the scope of the application, obvious variations or modifications may be made thereto.
Claims (7)
1. The utility model provides a clear stifled device of preventing gushing and scalding with of cement kiln whirlwind pre-heater which characterized in that: the device for preventing the blowout and scalding comprises a supporting seat (16), a baffle (15), a supporting column (14), a spring (17), a protecting piece (12) and a protecting sleeve (11);
the cyclone preheater (2) is provided with holes near the blocking position, one end of the supporting seat (16) is connected with the holes, the other end of the supporting seat is connected with one end of the protecting piece (12) through bolts (13), and the other end of the protecting piece (12) is connected with the protecting sleeve (11);
the support seat (16) is provided with a connecting hole (162) and a counter bore (163), and at least two symmetrical support columns (14) are distributed on the circumference of the bottom of the counter bore (163);
the baffle plate (15) is arranged in the counter bore (163), is connected with the support column (14) through a spring (17), is suspended in the counter bore (163) and shields the connecting hole (162), the baffle plate (15) is provided with a first through hole (151), and the diameter of the first through hole (151) is smaller than that of the connecting hole (162);
when the cyclone preheater is cleaned, the cleaning tool (3) sequentially passes through the protective sleeve (11), the protective piece (12), the first through hole (151) of the baffle plate (15) and the supporting seat (16) and then extends into the cyclone preheater (2) and touches the materials to be blocked.
2. The blowout and scalding prevention device for cleaning blockage of a cyclone preheater of a cement kiln according to claim 1, wherein the blowout and scalding prevention device is characterized in that: also comprises a support (161) and a supporting hole (164);
at least two supports (161) are distributed on the circumferential side surface of the supporting seat (16);
a plurality of supporting holes (164) are circumferentially distributed on the bottom surface of the counter bore (163), and the supporting holes (164) are used for installing the supporting columns (14).
3. The blowout and scalding prevention device for blocking removal of a cyclone preheater of a cement kiln according to claim 1 or 2, wherein: further comprising a hanging lug (152);
a plurality of hanging lugs (152) are arranged on the circumferential side surface of the baffle plate (15).
4. The blowout and scalding prevention device for cleaning blockage of a cyclone preheater of a cement kiln according to claim 3, wherein the blowout and scalding prevention device is characterized in that: the device also comprises a second through hole (121) and a through hole (122);
a plurality of second through holes (121) are circumferentially distributed on the circumferential edge of the guard (12);
a through hole (122) is formed in the axial center of the protective piece (12).
5. The blowout and scalding prevention device for cleaning blockage of a cyclone preheater of a cement kiln according to claim 1, wherein the blowout and scalding prevention device is characterized in that: the protective sleeve (11) is of a conical cylinder structure; the large diameter end of the cone structure is connected with a protecting piece (12), and the small diameter end is open.
6. The blowout and scalding prevention device for cleaning blockage of a cyclone preheater of a cement kiln according to claim 1 or 5, wherein the blowout and scalding prevention device is characterized in that: the protective sleeve (11) is made of high-temperature-resistant cloth.
7. The blowout-preventing scalding device for cleaning and blocking a cyclone preheater of a cement kiln according to claim 1, 2 or 5, wherein the blowout-preventing scalding device is characterized in that: the spring (17) is a cylindrical spiral spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110916357.4A CN113776348B (en) | 2021-08-11 | 2021-08-11 | Device for preventing blowout and scalding for cleaning blockage of cyclone preheater of cement kiln |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110916357.4A CN113776348B (en) | 2021-08-11 | 2021-08-11 | Device for preventing blowout and scalding for cleaning blockage of cyclone preheater of cement kiln |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113776348A CN113776348A (en) | 2021-12-10 |
| CN113776348B true CN113776348B (en) | 2023-10-31 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110916357.4A Active CN113776348B (en) | 2021-08-11 | 2021-08-11 | Device for preventing blowout and scalding for cleaning blockage of cyclone preheater of cement kiln |
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| CN (1) | CN113776348B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114754593B (en) * | 2022-04-13 | 2023-10-20 | 河北科技大学 | Clear stifled mechanical device of cement kiln pre-heater |
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| US3726045A (en) * | 1968-03-20 | 1973-04-10 | Smidth & Co As F L | Abrasion of caking |
| DE3919715C1 (en) * | 1989-06-16 | 1990-09-27 | O & K Orenstein & Koppel Ag, 1000 Berlin, De | Cyclone heat exchanger for powders - has tapered outlet connected to enlarged second with sloping part, opening into discharge pipe |
| EP0406481A1 (en) * | 1989-06-16 | 1991-01-09 | O&K Orenstein & Koppel Aktiengesellschaft | Process and apparatus for the prevention or removal as appropriate of blockages in the outlet region of a cyclone heat-exchanger |
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| CN110296612A (en) * | 2018-03-22 | 2019-10-01 | 上海胜僖汽车配件有限公司 | A kind of device removing blast furnace oxide |
| CN110307716A (en) * | 2019-07-02 | 2019-10-08 | 江西银杉白水泥股份有限公司 | The structures and methods of skinning in a kind of removal rotary kiln |
| CN210650225U (en) * | 2019-08-27 | 2020-06-02 | 许贯民 | Carbon dioxide blockage remover |
| CN212673818U (en) * | 2020-07-25 | 2021-03-09 | 涿鹿金隅水泥有限公司 | Anti-accumulation structure of preheater cyclone |
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2021
- 2021-08-11 CN CN202110916357.4A patent/CN113776348B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3726045A (en) * | 1968-03-20 | 1973-04-10 | Smidth & Co As F L | Abrasion of caking |
| DE3919715C1 (en) * | 1989-06-16 | 1990-09-27 | O & K Orenstein & Koppel Ag, 1000 Berlin, De | Cyclone heat exchanger for powders - has tapered outlet connected to enlarged second with sloping part, opening into discharge pipe |
| EP0406481A1 (en) * | 1989-06-16 | 1991-01-09 | O&K Orenstein & Koppel Aktiengesellschaft | Process and apparatus for the prevention or removal as appropriate of blockages in the outlet region of a cyclone heat-exchanger |
| CN101464097A (en) * | 2008-12-11 | 2009-06-24 | 天津市电视技术研究所 | Coke beating apparatus for high temperature industrial furnace observation hole |
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| CN212673818U (en) * | 2020-07-25 | 2021-03-09 | 涿鹿金隅水泥有限公司 | Anti-accumulation structure of preheater cyclone |
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| Publication number | Publication date |
|---|---|
| CN113776348A (en) | 2021-12-10 |
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