CN105571325A - Fireproof device of ring cooling machine receiving hopper - Google Patents
Fireproof device of ring cooling machine receiving hopper Download PDFInfo
- Publication number
- CN105571325A CN105571325A CN201510989239.0A CN201510989239A CN105571325A CN 105571325 A CN105571325 A CN 105571325A CN 201510989239 A CN201510989239 A CN 201510989239A CN 105571325 A CN105571325 A CN 105571325A
- Authority
- CN
- China
- Prior art keywords
- proofing
- fire
- central cooler
- stones
- prefabricated
- 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.)
- Pending
Links
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
- F27D1/00—Casings; Linings; Walls; Roofs
- F27D1/16—Making or repairing linings increasing the durability of linings or breaking away linings
- F27D1/1621—Making linings by using shaped elements, e.g. bricks
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- 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
- F27D1/00—Casings; Linings; Walls; Roofs
- F27D1/16—Making or repairing linings increasing the durability of linings or breaking away linings
- F27D1/1678—Increasing the durability of linings; Means for protecting
- F27D1/1684—Increasing the durability of linings; Means for protecting by a special coating applied to the lining
-
- 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
- F27D15/00—Handling or treating discharged material; Supports or receiving chambers therefor
- F27D15/02—Cooling
- F27D15/0206—Cooling with means to convey the charge
Abstract
The invention discloses a fireproof device of a ring cooling machine receiving hopper. The fireproof device is formed by laying prefabricated abrasive brick layers and pouring material layers, wherein the prefabricated abrasive brick layers are formed by connection of a plurality of prefabricated abrasive bricks, the pouring material layers are formed by pouring a pouring material and have a certain thickness, and the prefabricated abrasive brick layers and the pouring material layers are alternately laid in layers. The fireproof device can effectively shorten baking time before use to be within 2 days, so as to achieve consistence with the heating-up time of a rotary kiln; and the strength is higher, the scouring resistant performance is stronger, the structure stability is higher, and the service life is effectively prolonged.
Description
Technical field
The present invention relates to central cooler equipment technical field, be specifically related to a kind of fire-proofing of central cooler hopper.
Background technology
Along with China's chain-return-fast development of global explained hereafter acid pellet, this technique is progressively subject to the accreditation of industry.Central cooler is as the visual plant of cooling ball nodulizing, the secure of its internal mechanical structure, it is the key point ensureing that central cooler normally runs, wherein the fire-proofing of central cooler is the key factor affecting central cooler frame for movement, there is pelletizing temperature high in central cooler one, secondary cooling zone, the features such as gas flow rate is fast, requirement built by laying bricks or stones by the fire-proofing in these two sections, and to have intensity high, the characteristics such as resistance to erosion.The mainly heavy pouring material of building by laying bricks or stones of the fire-proofing of central cooler adopted integral type cast in the past, the shortcoming of such form is, the fire-proofing that integral type is built is owing to containing a large amount of wander about as a refugee water and the crystallization water in inside, need the low-temperature bake carrying out 4-5 days before use according to drying out curve, fully scattered and disappeared to make device internal moisture, thus making fire-proofing reach some strength, baking time is longer; In addition the high-temperature roasting ball in rotary kiln is in the process entering central cooler, fire-proofing central cooler hopper surrounding being comprised to air cooling wall washes away very serious, service life of position fire-proofing become to be limited the important step of about production line overall time between overhauls(TBO), production line is forced to stop production completely maintenance, because hopper maintenance relates to the maintenance of heating and cooling process and fire-proofing, repair time minimum 72 hours, have a strong impact on carrying out smoothly of production, considerably increase production cost.
Summary of the invention
In view of this, the application provides a kind of fire-proofing of central cooler hopper, within described fire-proofing effectively can shorten the baking time to 2 before use day, realize consistent with the heating-up time of rotary kiln, and intensity is higher, flushing resistance is stronger, and structural stability is higher, effectively improves service life.
For solving above technical problem, technical scheme provided by the invention is a kind of fire-proofing of central cooler hopper, described fire-proofing is by prefabricated wear-resisting brick layer and build the bed of material and build by laying bricks or stones and formed, described prefabricated wear-resisting brick layer is interconnected to form by multiple prefabricated abrasive brick, the described bed of material of building is formed by pouring material cast, and there is certain thickness, described prefabricated wear-resisting brick layer and describedly build bed of material layering and alternately build by laying bricks or stones.
Preferably, in described prefabricated wear-resisting brick layer, have gap between adjacent described prefabricated abrasive brick, the width in described gap is 10-30mm, inserts pouring material in described gap, is connected by adjacent described prefabricated abrasive brick.
More preferred, the width in described gap is 20mm.
Preferably, described prefabricated wear-resisting brick layer and described thickness difference of building the bed of material are 0-40mm.
More preferred, described prefabricated wear-resisting brick layer and described thickness difference of building the bed of material are 25mm.
Preferably, described prefabricated abrasive brick, before building by laying bricks or stones, first toasts according to drying out curve in baking box, makes described prefabricated abrasive brick inner without free water or the crystallization water.
Preferably, after formation built by laying bricks or stones by described fire-proofing, toast according to drying out curve, make fire-proofing inner without free water or the crystallization water.
More preferred, after formation built by laying bricks or stones by described fire-proofing, the time of carrying out toasting according to drying out curve is 1-2 days.
Preferably, described drying out curve is rotary kiln drying out curve.
The application compared with prior art, it is described in detail as follows: technical scheme provides a kind of fire-proofing of central cooler hopper, described fire-proofing is by prefabricated wear-resisting brick layer and build the bed of material and build by laying bricks or stones and formed, described prefabricated wear-resisting brick layer is interconnected to form by multiple prefabricated abrasive brick, the described bed of material of building is formed by pouring material cast, and there is certain thickness, described prefabricated wear-resisting brick layer and describedly build bed of material layering and alternately build by laying bricks or stones.
Described fire-proofing effectively can shorten baking time, in prior art, the fire-proofing of one-piece casting is owing to containing a large amount of wander about as a refugee water and the crystallization water in inside, need the low-temperature bake carrying out 4-5 days before use according to drying out curve, to make device internal moisture fully be scattered and disappeared, this ensures fire-proofing intensity and the basic assurance in service life.The normal service time of production line fire-proofing, the temperature of the baking time after maintenance and bake process controlled all to be difficult to carry out in strict accordance with heating curve generally at about 10 days.And the prefabricated abrasive brick described in the application is in strict accordance with the product after heating curve baking in baking box, inner without free water, the crystallization water, directly can use, within the baking time after maintenance can reduce to 2 days, realize consistent with the rotary kiln baker heating-up time.
Simultaneously, the flushing resistance of described fire-proofing is stronger, because the prefabricated abrasive brick in the application is in strict accordance with the product after heating curve baking in baking box, can reach the requirement of strength of region fire-proofing completely at the use initial stage, later stage flushing resistance is stronger.
In addition, the structural stability of described fire-proofing is higher, fire-proofing described in the application adopts prefabricated wear-resisting brick layer and builds bed of material layering alternately builds formation by laying bricks or stones, overcoming simple preformed bricks in prior art, to build stability by laying bricks or stones bad, easy entirety comes off, and simple pouring material builds the defects such as expansion clearance is uneven, and built-in thermal stress is uneven, structural stability is stronger, effectively can improve service life.
Detailed description of the invention
In order to make those skilled in the art understand technical scheme of the present invention better, below in conjunction with specific embodiment, the present invention is described in further detail.
Embodiment 1
The fire-proofing of a kind of central cooler hopper described in the present embodiment, by prefabricated wear-resisting brick layer with build the bed of material and build by laying bricks or stones and formed, described prefabricated wear-resisting brick layer is interconnected to form by multiple prefabricated abrasive brick, the described bed of material of building is formed by pouring material cast, and there is certain thickness, described prefabricated wear-resisting brick layer and describedly build bed of material layering and alternately build by laying bricks or stones; In described prefabricated wear-resisting brick layer, have gap between adjacent described prefabricated abrasive brick, the width in described gap is 20mm, inserts pouring material in described gap, connected by adjacent described prefabricated abrasive brick, described prefabricated wear-resisting brick layer and described thickness difference of building the bed of material are 25mm.
Wherein, described prefabricated abrasive brick is before building by laying bricks or stones, first toast according to rotary kiln drying out curve in baking box, make described prefabricated abrasive brick inner without free water or the crystallization water, after formation built by laying bricks or stones by described fire-proofing, carry out baking 1-2 days according to rotary kiln drying out curve, make fire-proofing inner without free water or the crystallization water.
Through pilot production, the baking time of above-mentioned fire-proofing reduces, and intensity is higher, and flushing resistance is stronger, and structural stability is higher, and service life can reach more than 9 months.
Embodiment 2
The fire-proofing of a kind of central cooler hopper described in the present embodiment, by prefabricated wear-resisting brick layer with build the bed of material and build by laying bricks or stones and formed, described prefabricated wear-resisting brick layer is interconnected to form by multiple prefabricated abrasive brick, the described bed of material of building is formed by pouring material cast, and there is certain thickness, described prefabricated wear-resisting brick layer and describedly build bed of material layering and alternately build by laying bricks or stones; In described prefabricated wear-resisting brick layer, have gap between adjacent described prefabricated abrasive brick, the width in described gap is 10mm, inserts pouring material in described gap, connected by adjacent described prefabricated abrasive brick, described prefabricated wear-resisting brick layer and described thickness difference of building the bed of material are 25mm.
Wherein, described prefabricated abrasive brick is before building by laying bricks or stones, first toast according to rotary kiln drying out curve in baking box, make described prefabricated abrasive brick inner without free water or the crystallization water, after formation built by laying bricks or stones by described fire-proofing, carry out baking 1-2 days according to rotary kiln drying out curve, make fire-proofing inner without free water or the crystallization water.
Through pilot production, the baking time of above-mentioned fire-proofing reduces, and intensity is higher, and flushing resistance is stronger, and structural stability is higher, and service life can reach 9 months.
Embodiment 3
The fire-proofing of a kind of central cooler hopper described in the present embodiment, by prefabricated wear-resisting brick layer with build the bed of material and build by laying bricks or stones and formed, described prefabricated wear-resisting brick layer is interconnected to form by multiple prefabricated abrasive brick, the described bed of material of building is formed by pouring material cast, and there is certain thickness, described prefabricated wear-resisting brick layer and describedly build bed of material layering and alternately build by laying bricks or stones; In described prefabricated wear-resisting brick layer, have gap between adjacent described prefabricated abrasive brick, the width in described gap is 30mm, inserts pouring material in described gap, connected by adjacent described prefabricated abrasive brick, described prefabricated wear-resisting brick layer and described thickness difference of building the bed of material are 25mm.
Wherein, described prefabricated abrasive brick is before building by laying bricks or stones, first toast according to rotary kiln drying out curve in baking box, make described prefabricated abrasive brick inner without free water or the crystallization water, after formation built by laying bricks or stones by described fire-proofing, carry out baking 1-2 days according to rotary kiln drying out curve, make fire-proofing inner without free water or the crystallization water.
Through pilot production, the baking time of above-mentioned fire-proofing reduces, and intensity is higher, and flushing resistance is stronger, and structural stability is higher, and service life can reach 10 months.
Embodiment 4
The fire-proofing of a kind of central cooler hopper described in the present embodiment, by prefabricated wear-resisting brick layer with build the bed of material and build by laying bricks or stones and formed, described prefabricated wear-resisting brick layer is interconnected to form by multiple prefabricated abrasive brick, the described bed of material of building is formed by pouring material cast, and there is certain thickness, described prefabricated wear-resisting brick layer and describedly build bed of material layering and alternately build by laying bricks or stones; In described prefabricated wear-resisting brick layer, have gap between adjacent described prefabricated abrasive brick, the width in described gap is 20mm, inserts pouring material in described gap, is connected by adjacent described prefabricated abrasive brick, and described prefabricated wear-resisting brick layer is identical with described thickness of building the bed of material.
Wherein, described prefabricated abrasive brick is before building by laying bricks or stones, first toast according to rotary kiln drying out curve in baking box, make described prefabricated abrasive brick inner without free water or the crystallization water, after formation built by laying bricks or stones by described fire-proofing, carry out baking 1-2 days according to rotary kiln drying out curve, make fire-proofing inner without free water or the crystallization water.
Through pilot production, the baking time of above-mentioned fire-proofing reduces, and intensity is higher, and flushing resistance is stronger, and structural stability is higher, and service life can reach 7 months.
Embodiment 5
The fire-proofing of a kind of central cooler hopper described in the present embodiment, by prefabricated wear-resisting brick layer with build the bed of material and build by laying bricks or stones and formed, described prefabricated wear-resisting brick layer is interconnected to form by multiple prefabricated abrasive brick, the described bed of material of building is formed by pouring material cast, and there is certain thickness, described prefabricated wear-resisting brick layer and describedly build bed of material layering and alternately build by laying bricks or stones; In described prefabricated wear-resisting brick layer, have gap between adjacent described prefabricated abrasive brick, the width in described gap is 20mm, inserts pouring material in described gap, connected by adjacent described prefabricated abrasive brick, described prefabricated wear-resisting brick layer and described thickness difference of building the bed of material are 40mm.
Wherein, described prefabricated abrasive brick is before building by laying bricks or stones, first toast according to rotary kiln drying out curve in baking box, make described prefabricated abrasive brick inner without free water or the crystallization water, after formation built by laying bricks or stones by described fire-proofing, carry out baking 1-2 days according to rotary kiln drying out curve, make fire-proofing inner without free water or the crystallization water.
Through pilot production, the baking time of above-mentioned fire-proofing reduces, and intensity is higher, and flushing resistance is stronger, and structural stability is higher, and service life can reach 7 months.
Below be only the preferred embodiment of the present invention, it should be pointed out that above-mentioned preferred embodiment should not be considered as limitation of the present invention, protection scope of the present invention should be as the criterion with claim limited range.For those skilled in the art, without departing from the spirit and scope of the present invention, can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (9)
1. the fire-proofing of a central cooler hopper, it is characterized in that: described fire-proofing is by prefabricated wear-resisting brick layer and build the bed of material and build by laying bricks or stones and formed, described prefabricated wear-resisting brick layer is interconnected to form by multiple prefabricated abrasive brick, the described bed of material of building is formed by pouring material cast, and there is certain thickness, described prefabricated wear-resisting brick layer and describedly build bed of material layering and alternately build by laying bricks or stones.
2. the fire-proofing of a kind of central cooler hopper according to claim 1, it is characterized in that: in described prefabricated wear-resisting brick layer, between adjacent described prefabricated abrasive brick, there is gap, the width in described gap is 10-30mm, insert pouring material in described gap, adjacent described prefabricated abrasive brick is connected.
3. the fire-proofing of a kind of central cooler hopper according to claim 2, is characterized in that: the width in described gap is 20mm.
4. the fire-proofing of a kind of central cooler hopper according to claim 1, is characterized in that: described prefabricated wear-resisting brick layer and described thickness difference of building the bed of material are 0-40mm.
5. the fire-proofing of a kind of central cooler hopper according to claim 4, is characterized in that: described prefabricated wear-resisting brick layer and described thickness difference of building the bed of material are 25mm.
6. the fire-proofing of a kind of central cooler hopper according to claim 1, is characterized in that: described prefabricated abrasive brick, before building by laying bricks or stones, first toasts according to drying out curve in baking box, makes described prefabricated abrasive brick inner without free water or the crystallization water.
7. the fire-proofing of a kind of central cooler hopper according to claim 1, is characterized in that: after formation built by laying bricks or stones by described fire-proofing, toast according to drying out curve, makes fire-proofing inner without free water or the crystallization water.
8. the fire-proofing of a kind of central cooler hopper according to claim 7, is characterized in that: after formation built by laying bricks or stones by described fire-proofing, and the time of carrying out toasting according to drying out curve is 1-2 days.
9. the fire-proofing of a kind of central cooler hopper according to any one of claim 6 or 7, is characterized in that: described drying out curve is rotary kiln drying out curve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510989239.0A CN105571325A (en) | 2015-12-24 | 2015-12-24 | Fireproof device of ring cooling machine receiving hopper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510989239.0A CN105571325A (en) | 2015-12-24 | 2015-12-24 | Fireproof device of ring cooling machine receiving hopper |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105571325A true CN105571325A (en) | 2016-05-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510989239.0A Pending CN105571325A (en) | 2015-12-24 | 2015-12-24 | Fireproof device of ring cooling machine receiving hopper |
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| CN (1) | CN105571325A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110926221A (en) * | 2019-12-13 | 2020-03-27 | 扬州泰富特种材料有限公司 | Method for preventing bursting of refractory material of receiving hopper of annular cooling machine |
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| CN110926221B (en) * | 2019-12-13 | 2021-12-03 | 扬州泰富特种材料有限公司 | Method for preventing bursting of refractory material of receiving hopper of annular cooling machine |
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Application publication date: 20160511 |