CN210150971U - Preparation device for coarse steel slag mineralized cement clinker - Google Patents
Preparation device for coarse steel slag mineralized cement clinker Download PDFInfo
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- CN210150971U CN210150971U CN201921137759.9U CN201921137759U CN210150971U CN 210150971 U CN210150971 U CN 210150971U CN 201921137759 U CN201921137759 U CN 201921137759U CN 210150971 U CN210150971 U CN 210150971U
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- slag
- steel slag
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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
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/10—Production of cement, e.g. improving or optimising the production methods; Cement grinding
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Abstract
The utility model relates to a cement clinker preparation facilities, concretely relates to coarse steel slag mineralize cement clinker preparation facilities. Including dore furnace and breaker, dore furnace top entry linkage feeder, the dore furnace bottom sets up the material export, and the lower extreme of dore furnace sets up the slag import, and breaker export below sets up the shale shaker, and the screen cloth slope on the shale shaker sets up, and the screen cloth below sets up slag collecting device, and slag collecting device passes through the inlet pipe with the slag import and is connected. The utility model has simple structure, realizes the crushing and sieving of the steel slag, and adds the steel slag into the raw material in the decomposing furnace, and replaces partial raw material with the steel slag, thereby not only reducing the requirements of the cement industry on natural raw materials such as limestone, iron tailings and the like, but also reducing the production cost; meanwhile, the incorporation of the steel slag can reduce the decomposition temperature of calcium carbonate and reduce the emission of carbon dioxide; the addition of the steel slag is beneficial to the calcination of cement clinker, and the clinker quality and yield are both improved.
Description
Technical Field
The utility model relates to a cement clinker preparation facilities, concretely relates to coarse steel slag mineralize cement clinker preparation facilities.
Background
The steel slag is an industrial waste slag in the steel making process, accounts for about 15-20% of the yield of crude steel, and contains oxides of silicon, manganese, phosphorus, sulfur and the like and salts generated by the reaction of the oxides and a solvent, so that on one hand, the discharge amount of the steel slag is extremely large, nearly 1.4 hundred million tons of the steel slag is discharged in 2012, the steel slag is accumulated to occupy a large amount of land, and on the other hand, substances of silicon, manganese, phosphorus, sulfur and the like in the steel slag permeate underground and can damage the environment. The steel slag is discharged in large quantity and cannot be effectively utilized in large scale, and the steel industry in China faces great pressure on environmental protection and economic development.
The large-scale engineering construction is still required in China, the requirements on building materials such as cement and steel are very large, and the application of waste generated in the production of the steel to the production of the cement is an effective means for sustainable development and circular economy development, so that the environmental protection and the economic development can be performed in a coordinated manner. However, although the components of the steel slag are similar to those of the cement, the activity of the steel slag is extremely low due to the difference of mineral phases, so how to realize the excitation of the potential gelling property of the steel slag, ensure the economical efficiency in the recycling process of the steel slag and reduce the energy consumption is a key for recycling the steel slag.
Disclosure of Invention
The utility model aims at providing a coarse steel slag mineralize cement clinker preparation facilities realizes the breakage to the slag, sieves to add the slag in the raw material in the dore furnace, with slag substitution part raw material, reduction in production cost reduces carbon dioxide and discharges, improves grog quality and output.
Coarse steel slag mineralize mineralization cement clinker preparation facilities, including dore furnace and breaker, dore furnace top entry linkage feeder, the dore furnace bottom sets up the material export, the lower extreme of dore furnace sets up the slag import, breaker export below sets up the shale shaker, the screen cloth slope on the shale shaker sets up, the screen cloth below sets up slag collecting device, slag collecting device passes through the inlet pipe with the slag import and is connected.
The feed pipe is arranged obliquely.
The aperture of the screen on the vibrating screen is 20 mm.
Coarse particle collecting equipment is arranged below the outlet of the screen of the vibrating screen.
The steel slag inlet is provided with a push-pull switch.
The steel slag collecting device is shaped like an inverted cone.
The steel slag collecting device is provided with a metering scale, and the amount of the added steel slag is known through the metering scale.
The material outlet is connected with the rotary kiln.
The use process comprises the following steps:
the raw materials are added into a decomposing furnace through a feeder, steel slag is crushed in a crusher, the crushed steel slag is transferred to a screen mesh on a vibrating screen through an outlet, the crushed steel slag is screened from top to bottom due to the inclined arrangement of the screen mesh, the aperture of the screen mesh on the vibrating screen is 20mm, most of the steel slag with the aperture smaller than 20mm falls into a steel slag collecting device, the steel slag with larger particles enters a coarse particle collecting device from the lower part of an outlet of the screen mesh, the collected steel slag in the coarse particle collecting device is put into the crusher again after a period of time for crushing, the steel slag collected in the steel slag collecting device enters the decomposing furnace through a steel slag inlet through a feed pipe, is mixed with the raw materials in the decomposing furnace, and then enters a rotary kiln for calcination to obtain the clinker.
Compared with the prior art, the utility model has the advantages of it is following:
the utility model has simple structure, realizes the crushing and sieving of the steel slag, and adds the steel slag into the raw material in the decomposing furnace, and replaces partial raw material with the steel slag, thereby not only reducing the requirements of the cement industry on natural raw materials such as limestone, iron tailings and the like, but also reducing the production cost; meanwhile, the incorporation of the steel slag can reduce the decomposition temperature of calcium carbonate and reduce the emission of carbon dioxide; the addition of the steel slag is beneficial to the calcination of cement clinker, and the clinker quality and yield are both improved.
Drawings
FIG. 1 is a schematic structural view of a coarse steel slag mineralized cement clinker preparation device in the embodiment of the present invention;
FIG. 2 is a state diagram when the push-pull switch is turned on;
FIG. 3 is a state diagram when the push-pull switch is turned off;
in the figure: 1-a crusher, 2-a vibrating screen, 3-coarse particle collecting equipment, 4-steel slag collecting equipment, 5-a feeding pipe, 6-a steel slag inlet, 7-a material outlet, 8-a decomposing furnace, 9-a feeder and 10-a push-pull switch.
Detailed Description
The present invention will be further described with reference to the following examples.
Examples
A coarse steel slag mineralized cement clinker preparation device is shown in figures 1-3 and comprises a decomposing furnace 8 and a crusher 1, wherein an inlet at the top of the decomposing furnace 8 is connected with a feeder 9, a material outlet 7 is formed in the bottom of the decomposing furnace 8, a steel slag inlet 6 is formed in the lower end of the decomposing furnace 8, a vibrating screen 2 is arranged below an outlet of the crusher 1, a screen mesh on the vibrating screen 2 is obliquely arranged, a steel slag collecting device 4 is arranged below the screen mesh, and the steel slag collecting device 4 is connected with the steel slag inlet 6 through a feeding pipe 5.
The feeding pipe 5 is arranged obliquely.
The aperture of the screen mesh on the vibrating screen 2 is 20 mm.
And a coarse particle collecting device 3 is arranged below the screen outlet of the vibrating screen 2.
The steel slag inlet 6 is provided with a push-pull switch 10.
The steel slag collecting device 4 is shaped like an inverted cone.
The steel slag collecting device 4 is provided with a metering scale, and the amount of the added steel slag is controlled by the metering scale.
The material outlet 7 is connected with the rotary kiln.
The use process comprises the following steps:
raw materials are added into a decomposing furnace 8 through a feeder 9, steel slag is crushed in a crusher 1, the crushed steel slag is transferred to a screen mesh on a vibrating screen 2 through an outlet, the crushed steel slag is screened from top to bottom due to the inclined arrangement of the screen mesh, the aperture of the screen mesh on the vibrating screen 2 is 20mm, most of the steel slag with the aperture smaller than 20mm falls into a steel slag collecting device 4, the steel slag with larger particles enters a coarse particle collecting device 3 from the lower part of the screen mesh outlet, after a period of time, the collected steel slag in the coarse particle collecting device 3 is put into the crusher 1 again for crushing, the steel slag collected in the steel slag collecting device 4 enters the decomposing furnace 8 through a steel slag inlet 6 through a feeding pipe 5, is mixed with the raw materials in the decomposing furnace 8, and then enters a rotary kiln for calcining to obtain clinker.
Claims (8)
1. A coarse steel slag mineralized cement clinker preparation device is characterized in that: including dore furnace (8) and breaker (1), dore furnace (8) top entry linkage feeder (9), dore furnace (8) bottom sets up material export (7), the lower extreme of dore furnace (8) sets up slag import (6), breaker (1) export below sets up shale shaker (2), the screen cloth slope on shale shaker (2) sets up, the screen cloth below sets up slag collection equipment (4), slag collection equipment (4) are imported (6) with the slag and are passed through inlet pipe (5) and be connected.
2. The coarse slag mineralized cement clinker preparation apparatus according to claim 1, characterized in that: the feeding pipe (5) is obliquely arranged.
3. The coarse slag mineralized cement clinker preparation apparatus according to claim 1, characterized in that: the aperture of the screen mesh on the vibrating screen (2) is 20 mm.
4. The coarse slag mineralized cement clinker preparation device according to claim 3, characterized in that: coarse particle collecting equipment (3) is arranged below the screen outlet of the vibrating screen (2).
5. The coarse slag mineralized cement clinker preparation apparatus according to claim 1, characterized in that: a push-pull switch (10) is arranged on the steel slag inlet (6).
6. The coarse slag mineralized cement clinker preparation apparatus according to claim 1, characterized in that: the steel slag collecting device (4) is in the shape of an inverted cone.
7. The coarse slag mineralized cement clinker preparation device according to claim 6, characterized in that: the steel slag collecting device (4) is provided with a metering scale.
8. The coarse slag mineralized cement clinker preparation apparatus according to claim 1, characterized in that: the material outlet (7) is connected with the rotary kiln.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921137759.9U CN210150971U (en) | 2019-07-18 | 2019-07-18 | Preparation device for coarse steel slag mineralized cement clinker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921137759.9U CN210150971U (en) | 2019-07-18 | 2019-07-18 | Preparation device for coarse steel slag mineralized cement clinker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210150971U true CN210150971U (en) | 2020-03-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921137759.9U Active CN210150971U (en) | 2019-07-18 | 2019-07-18 | Preparation device for coarse steel slag mineralized cement clinker |
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| Country | Link |
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| CN (1) | CN210150971U (en) |
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2019
- 2019-07-18 CN CN201921137759.9U patent/CN210150971U/en active Active
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