CN215667746U - Semi-closed and semi-open cement production system - Google Patents
Semi-closed and semi-open cement production system Download PDFInfo
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- CN215667746U CN215667746U CN202121144735.3U CN202121144735U CN215667746U CN 215667746 U CN215667746 U CN 215667746U CN 202121144735 U CN202121144735 U CN 202121144735U CN 215667746 U CN215667746 U CN 215667746U
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Abstract
The utility model relates to a cement production system, in particular to a semi-closed and semi-open cement production system, which comprises a material bin, a weighing bin, a roller press, an A, V type powder concentrator of a hoister, a high-efficiency powder concentrator, a hoister B, a cement mill, a product dust remover, a system main fan and a finished product warehouse, and is technically characterized in that: the automatic powder sorting machine is characterized by further comprising a discharging scraper-trough conveyer, a shunting pipeline and a shunting valve, wherein a discharging port of the hoister B is connected with a secondary feeding port of the high-efficiency powder sorting machine through the discharging scraper-trough conveyer, the middle of the discharging scraper-trough conveyer is connected with a feeding port of the product dust remover through the shunting pipeline, the beginning end of the shunting pipeline is provided with the shunting valve, an air outlet of a system main fan is connected with an air inlet of the V-shaped powder sorting machine, an air outlet of the system main fan is connected with an air inlet of the product dust remover, and a discharging port of the product dust remover is connected with a feeding port of a finished product warehouse. The cement mixing device is simple in structure and reasonable in design, reduces the production capacity consumption, and can effectively obtain cement finished products meeting the national standard.
Description
Technical Field
The utility model relates to a cement production system, in particular to a semi-closed and semi-open cement production system.
Background
In the national standard, the specific surface area of finished products of silicate and ordinary portland cement is required to be more than 300m2The screen residue of 45um is less than 30 percent per kg, but has more strict requirements on the fineness index of the cement product in the actual production and operation process. The closed-circuit system consisting of the roller press, the V-shaped powder concentrator, the efficient powder concentrator and the cement mill has high yield, but the cement has more fine powder, higher specific surface area, small 45-micron screen residue, unreasonable particle shape and distribution, high water demand and the like, so that the strength of a finished product is lower, the grading of cement particles milled by the open-circuit system is more reasonable, the defect is that the yield is very low, so how to reasonably obtain the cement finished product meeting the requirements by the grading of the particles in the cement mill system is realized, and the high yield and the low consumption are realized, thereby becoming the problem to be solved at present.
Disclosure of Invention
The utility model aims to provide a semi-closed and semi-open cement production system which is simple in structure and reasonable in design, reduces the capacity consumption and can effectively obtain cement finished products meeting the national standard.
The technical scheme of the utility model is as follows:
the utility model provides a half closed circuit half open circuit cement production system, includes material storehouse, the storehouse of weighing, roller press, A, V type selection powder machines of lifting machine, high-efficient selection powder machine, lifting machine B, cement mill, product dust remover, system owner fan, finished product storehouse, its technical essential is: the discharge hole of the material bin is connected with the feed inlet of the weighing bin, the discharge hole of the weighing bin is connected with the feed inlet of the roller press, the discharge hole of the roller press is connected with the feed inlet of the hoister A, the discharge hole of the hoister A is connected with the feed inlet of the V-shaped powder concentrator, the primary fine powder discharge hole of the V-shaped powder concentrator is connected with the feed inlet of the high-efficiency powder concentrator, the high-grade fine powder discharge hole of the high-efficiency powder concentrator is connected with the feed inlet of the product dust remover, the middle-grade coarse powder discharge hole of the high-efficiency powder concentrator is connected with the feed inlet of the cement mill, the discharge hole of the cement mill is connected with the feed inlet of the hoister B, the discharge hole of the hoister B is connected with the secondary feed inlet of the high-efficiency powder concentrator through a discharging scraper-trough, the middle part of the discharging scraper-trough is connected with the feed inlet of the product dust remover through a shunt pipeline, and the start end of the shunt pipeline is provided with a shunt valve, the air outlet of the system main fan is connected with the air inlet of the V-shaped powder concentrator, the air outlet of the system main fan is connected with the air inlet of the product dust remover, and the discharge port of the product dust remover is connected with the feed port of the finished product warehouse.
The semi-closed and semi-open cement production system is characterized in that the weighing bin is provided with a secondary feeding hole, and a primary coarse powder discharging hole of the V-shaped powder concentrator is connected with the secondary feeding hole of the weighing bin.
The cement mill is provided with a second discharge hole, the elevator B is provided with a second feed inlet, the second discharge hole of the cement mill is connected with the feed inlet of the intermediate dust remover, the discharge hole of the intermediate dust remover is connected with the second feed inlet of the elevator B, and the air outlet of the intermediate dust remover is connected with the air inlet of the intermediate fan.
The utility model has the beneficial effects that:
1.1. the material bin is sequentially connected with a weighing bin, a roller press, an A, V type powder concentrator of a hoister, a high-efficiency powder concentrator and a product dust remover to form an external circulation system; the high-efficiency powder concentrator, the cement mill, the hoister B and the high-efficiency powder concentrator are sequentially in closed connection, a shunting pipeline and a shunting valve are additionally arranged at a discharging chute connected between the hoister B and the high-efficiency powder concentrator and connected with a product dust remover, and the shunting pipeline and the shunting valve are combined with an external circulation system to form a semi-closed and semi-open cement production system; when the specific surface area of the cement finished product is required to be 350 +/-20 m2When the screen residue of 45um is 10 +/-3 percent per kg, the specific surface area of the product is less than 330m2When the screen residue of 45um is more than 13 percent per kg, the opening of the flow divider is reduced, and the specific surface area of the product is more than 370m2When the 45um screen residue is less than 7%, increasing the opening of the flow dividing valve, and selecting high-grade fine powder by changing the high-efficiency powder selecting machineMixing with the materials milled by a cement mill to obtain a finished product meeting the standard.
2.2. The split-flow pipeline is additionally arranged between the discharging chute and the product dust remover, and the split-flow valve is arranged on the split-flow pipeline, so that middle-level coarse powder selected from the high-efficiency powder selecting machine is crushed by the cement mill, part of materials can directly enter the product dust remover through the split-flow pipeline to remove dust, the materials do not need to be crushed again in the high-efficiency powder selecting machine and the cement mill, and directly enter the product dust remover to form products which are conveyed to a finished product warehouse, the opening size of the split-flow valve can be adjusted according to inspection data of the products, the circulating load of the cement mill is reduced, the production energy consumption is reduced, the product undersize is effectively avoided, the early strength is high, the later strength is low, and the machine hour yield is improved.
3.3. The middle dust remover connected with the middle fan is additionally arranged at the discharge port of the cement mill, the ventilation in the cement mill is enhanced, the flowing speed of materials is increased, the materials entering the middle dust remover can be sent into the high-efficiency powder concentrator or the product dust remover through the hoister B after being dedusted, and the materials cannot be retained in the middle dust remover to cause waste.
Drawings
FIG. 1 is a schematic view of the structure of the present invention.
In the figure: 1. the device comprises a material bin, a weighing bin 2, a roller press 3, a hoister A4, a cement mill 5, a hoister B6, a middle dust remover 7, a middle fan 8, a finished product bin 9, a product dust remover 10, a system main fan 11, a flow dividing pipeline 12, a flow dividing valve 13, a discharging scraper-trough conveyer 14, a high-efficiency powder concentrator 15 and a V-shaped powder concentrator 16.
Detailed Description
The technical solution of the present invention is further explained by the following specific embodiments with reference to the accompanying drawings.
As shown in fig. 1, the semi-closed and semi-open cement production system comprises a material bin 1, a weighing bin 2, a roller press 3, a hoisting machine a4, a V-type powder concentrator 16, a high-efficiency powder concentrator 15, a hoisting machine B6, a cement mill 5, a product dust collector 10, a system main fan 11 and a finished product warehouse 9.
Wherein the discharge hole of the material bin 1 is connected with the feed hole of the weighing bin 2, the discharge hole of the weighing bin 2 is connected with the feed hole of the roller press 3, the discharge hole of the roller press 3 is connected with the feed hole of the hoister A4, the discharge hole of the hoister A4 is connected with the feed hole of the V-shaped powder concentrator 16, the primary fine powder discharge hole of the V-shaped powder concentrator 16 is connected with the feed hole of the high-efficiency powder concentrator 15, the high-grade fine powder discharge hole of the high-efficiency powder concentrator 15 is connected with the feed hole of the product dust remover 10, the middle-grade coarse powder discharge hole of the high-efficiency powder concentrator 15 is connected with the feed hole of the cement mill 5, the discharge hole of the cement mill 5 is connected with the feed hole of the hoister B6, the discharge hole of the hoister B6 is connected with the secondary feed hole of the high-efficiency powder concentrator 15 through the discharging scraper-scraper loader 14, the middle part of the discharging scraper loader 14 is connected with the feed hole of the product dust remover 10 through the shunt pipe 12, the start end of the diversion pipeline 12 is provided with a diversion valve 13, the air outlet of the system main fan 11 is connected with the air inlet of the V-shaped powder concentrator 16, the air outlet of the system main fan 11 is connected with the air inlet of the product dust remover 10, and the discharge hole of the product dust remover 10 is connected with the feed inlet of the finished product warehouse 9.
In this embodiment, the weighing bin 2 is provided with a secondary feeding hole, and a primary coarse powder discharging hole of the V-shaped powder concentrator 16 is connected with the secondary feeding hole of the weighing bin 2. The second discharge gate has been seted up to cement mill 5, and second feed inlet has been seted up to lifting machine B6, and the second discharge gate of cement mill 5 is connected with the feed inlet of middle dust remover 7, and the discharge gate of middle dust remover 7 is connected with the second feed inlet of lifting machine B6, and the air outlet of middle dust remover 7 and the air intake connection of middle fan 8.
The working process is as follows:
the specific surface area of the cement finished product is required to be 350 +/-20 m2Per kg, 45um screen residue is 10 plus or minus 3 percent.
After the materials enter the weighing bin 2 for weighing, the materials enter a roller press 3 for extruding the cement clinker which is sintered into blocks into a cement semi-finished product, the cement semi-finished product is screened out primary fine powder by a V-shaped powder concentrator 16 and enters a high-efficiency powder concentrator 15, the rest materials enter the weighing bin 2 for extruding by the roller press 3 again, and then enter the V-shaped powder concentrator 16 again for screening, and enter the high-efficiency powder concentrator 15The materials are screened out high-grade fine powder and conveyed to a product dust remover 10, the materials are conveyed to a finished product warehouse 9 after dust removal, the residual middle-grade coarse powder in the high-efficiency powder concentrator 15 enters a cement mill 5 to be crushed, a small part of the materials enter an intermediate dust remover 7 under the action of an intermediate fan 8, the materials after dust removal and a large part of relatively coarse materials after being crushed by the cement mill 5 reach a blanking scraper-trough conveyer 14 through a lifter B6, one part of the relatively coarse materials reenter the high-efficiency powder concentrator 15 and the cement mill 5 according to the opening degree of a flow dividing valve 13, the other part of the relatively coarse materials enter the product dust remover 10 through a flow dividing pipeline 12 and are conveyed to the finished product warehouse 9, a worker detects the products in the finished product warehouse 9, and if the specific surface area of the products is smaller than 330m2When the screen residue of 45um is more than 13 percent per kg, the opening of the flow divider is reduced, and the specific surface area of the product is more than 370m2When the 45um screen residue is less than 7 percent per kg, the opening of a flow divider is increased, the mixing proportion of high-grade fine powder and relative coarse materials is adjusted, and finally 350 +/-20 m is obtained2The 45um screen residue is 10 plus or minus 3 percent of finished product per kg.
Claims (3)
1. The utility model provides a half closed circuit half open circuit cement production system, includes material storehouse, the storehouse of weighing, roller press, A, V type selection powder machine of lifting machine, high-efficient selection powder machine, lifting machine B, cement mill, product dust remover, system owner fan, finished product storehouse, its characterized in that: the discharge hole of the material bin is connected with the feed inlet of the weighing bin, the discharge hole of the weighing bin is connected with the feed inlet of the roller press, the discharge hole of the roller press is connected with the feed inlet of the hoister A, the discharge hole of the hoister A is connected with the feed inlet of the V-shaped powder concentrator, the primary fine powder discharge hole of the V-shaped powder concentrator is connected with the feed inlet of the high-efficiency powder concentrator, the high-grade fine powder discharge hole of the high-efficiency powder concentrator is connected with the feed inlet of the product dust remover, the middle-grade coarse powder discharge hole of the high-efficiency powder concentrator is connected with the feed inlet of the cement mill, the discharge hole of the cement mill is connected with the feed inlet of the hoister B, the discharge hole of the hoister B is connected with the secondary feed inlet of the high-efficiency powder concentrator through a discharging scraper-trough, the middle part of the discharging scraper-trough is connected with the feed inlet of the product dust remover through a shunt pipeline, and the start end of the shunt pipeline is provided with a shunt valve, the air outlet of the system main fan is connected with the air inlet of the V-shaped powder concentrator, the air outlet of the system main fan is connected with the air inlet of the product dust remover, and the discharge port of the product dust remover is connected with the feed port of the finished product warehouse.
2. A semi-closed and semi-open cement production system according to claim 1, wherein: the secondary feed inlet is seted up in the storehouse of weighing, and the secondary feed inlet in the storehouse is connected with the primary middlings discharge gate of V type selection powder machine.
3. A semi-closed and semi-open cement production system according to claim 1, wherein: the cement mill is provided with a second discharge hole, the elevator B is provided with a second feed inlet, the second discharge hole of the cement mill is connected with the feed inlet of the middle dust remover, the discharge hole of the middle dust remover is connected with the second feed inlet of the elevator B, and the air outlet of the middle dust remover is connected with the air inlet of the middle fan.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121144735.3U CN215667746U (en) | 2021-05-26 | 2021-05-26 | Semi-closed and semi-open cement production system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121144735.3U CN215667746U (en) | 2021-05-26 | 2021-05-26 | Semi-closed and semi-open cement production system |
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| Publication Number | Publication Date |
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| CN215667746U true CN215667746U (en) | 2022-01-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202121144735.3U Active CN215667746U (en) | 2021-05-26 | 2021-05-26 | Semi-closed and semi-open cement production system |
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| CN (1) | CN215667746U (en) |
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2021
- 2021-05-26 CN CN202121144735.3U patent/CN215667746U/en active Active
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