CN211726108U - Be used for cement powder granule modification system - Google Patents
Be used for cement powder granule modification system Download PDFInfo
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- CN211726108U CN211726108U CN202020008714.8U CN202020008714U CN211726108U CN 211726108 U CN211726108 U CN 211726108U CN 202020008714 U CN202020008714 U CN 202020008714U CN 211726108 U CN211726108 U CN 211726108U
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Abstract
The utility model discloses a be used for modified system of cement powder granule, cement after the grinding is sent into cement in the middle of the warehouse store, the discharge gate in warehouse is connected with unloader's feed inlet in the middle of the cement, unloader's discharge gate and the feed inlet of carrying the weigher are connected, carry the discharge gate of weigher with cement modified device's feed inlet connect, the discharge gate of modified auxiliary agent storage tank pass through the measuring pump and be connected with cement modified device's feed inlet, cement modified device's discharge gate and the feed inlet of airlock valve are connected, the discharge gate of airlock valve is connected with horizontal conveyor's feed inlet, horizontal conveyor's discharge gate and the feed inlet of lifting machine are connected, cement warehousing conveying equipment is connected to the discharge gate of lifting machine. The utility model discloses system's work flow is simple, and is rational in infrastructure, easy operation, and the system power consumption is low, and low in production cost improves the cement performance, produces high-quality cement, but the various cement of large-scale industrial production.
Description
Technical Field
The utility model relates to a cement industry cement product grinding technology production technical field especially relates to a system for cement powder granule is modified.
Background
The quality of the finished cement product is influenced by a plurality of factors, and besides the quality of cement clinker, the quality, variety, proportion and fineness of the mixed materials, the particle distribution and particle morphology of the cement have great influence on the quality and performance of the finished cement product.
As a basic industry of the heavy chemical industry, the cement industry is always a large energy consumption household. The power consumption of the cement grinding process accounts for about one third of the total power consumption in the cement production process, so that the reduction of the power consumption of the cement grinding process is an important subject of research of science and technology personnel. The grinding efficiency of the vertical mill and the roller press based on the material bed grinding principle is greatly improved, the energy is saved by 20-50% compared with that of a common grinding system, the yield is increased by 30-200%, and the vertical mill and the roller press have obvious energy-saving and yield-increasing effects, so that the vertical mill and the roller press are widely applied to various countries in the world. However, as a final grinding system (i.e., a ball-milling-free system) of a roller press with the most potential energy saving, the cement products produced by the system have the disadvantages of large water demand of cement, shortened setting time, poor construction performance and the like, and cannot be popularized and applied on a large scale. Similarly, the vertical roller mill has been widely used for grinding cement raw materials and pulverized coal due to its characteristics of simplicity, convenience, high efficiency, energy saving, stability, reliability, low noise, environmental protection, etc., but the vertical roller mill is not widely popularized at present when used for producing cement final grinding, and the main reason is that the performance of cement products is inferior to that of cement ground by the ball mill.
The reason for this is that the final grinding cement product has unreasonable particle distribution, narrow and uniform particle distribution, and the slope n of the RRB particle distribution curve is large (more than 1.2); secondly, more cement product particles finally ground by the roller press are irregular in shape, large in surface area and insufficient in sphericity, so that the flowability of slurry is influenced; in addition, the grinding temperature of cement is low, the dehydration degree of gypsum is low, and the soluble SO is influenced3Of (1) containsAmount of the compound (A).
The importance of the particle distribution, particle morphology of the cement to the quality and properties of the cement is self evident. At present, the main focus of the industry is on the structural optimization, process system optimization and operation parameter optimization of the roller press or the vertical roller mill or the powder concentrator. Fundamental improvements are difficult due to the principle of the device.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a system for cement powder granule is modified in order to remedy prior art's defect.
The utility model discloses a realize through following technical scheme:
the utility model provides a cement powder granule system of modifying, includes storage bin, modified auxiliary agent storage tank, unloader in the middle of the cement, carries weigher, cement modification device, lifting machine, dust remover, and the cement of grinding through the roller press final grinding or vertical roller mill system grinding is sent into through conveying equipment middle storage bin stores, and the unloader feed inlet that middle storage bin discharge gate and be connected, unloader is connected with the metering device feed inlet, metering device is connected with cement modification device feed inlet. The modified additive storage tank is connected with the modified additive metering pump, and the modified additive metered by the modified additive metering pump is directly added into a connecting pipe of a feed inlet of the cement modifying device. The cement modification device is characterized in that a discharge port of the cement modification device is connected with a feed inlet of an elevator, and a discharge port of the elevator is connected with a cement inlet conveying device.
The air outlet of the cement modification device is connected with the air inlet of the bag dust collector, and the air outlet of the bag dust collector is connected with the air inlet of the fan.
The bag dust collector discharge port is connected with a horizontal conveying device, and the horizontal conveying device is connected with a lifting machine.
The utility model has the advantages that: the utility model discloses system's work flow is simple, and is rational in infrastructure, easy operation, and the system power consumption is low, and low in production cost improves the cement performance, produces high-quality cement, but the various cement of large-scale industrial production.
Drawings
Fig. 1 is a schematic diagram of the system structure of the present invention.
Detailed Description
As shown in fig. 1, a cement powder particle modification system comprises a cement intermediate storage bin 1, a conveying and metering scale 3, a modification auxiliary storage tank 4, a metering pump 5, a cement modification device 6, a lifting machine 9, a dust remover 10 and a fan 11.
The cement ground by the roller press or the vertical roller grinding system is sent into the intermediate storage bin 1 for storage through the conveying equipment, the feed opening of the intermediate storage bin 1 is connected with the inlet of the blanking device 2, the outlet of the blanking device 2 is connected with the inlet of the metering scale 3, and the outlet of the metering scale 3 is connected with the inlet of the cement modifying device 6. The modified additive storage tank 4 is connected with a metering pump 5, and the outlet of the metering pump 5 is connected with the feed inlet of a cement modification device 6. The discharge port of the modification device 6 is connected with the inlet of the air locking valve 7, the outlet of the air locking valve 7 is connected with the feed port of the first conveying device 8, the discharge port of the first conveying device 8 is connected with the feed port of the elevator 9, and the discharge port of the elevator 9 is connected with the feed port of the finished product warehousing conveying device. The air outlet of the modifying device 6 is connected with the air inlet of a bag dust remover 10, and the air outlet of the bag dust remover 10 is connected with the air inlet of a fan 11. The discharge port of the bag dust collector 10 is connected with an air locking valve 12, the air locking valve 12 is connected with the feed port of a second conveying device 13, the discharge port of the second conveying device 13 is connected with a hoisting machine 9, and the discharge port of the hoisting machine is connected with a cement warehousing conveying device 14.
The working process of the utility model is as follows:
and finally grinding by using a roller press or grinding by using a vertical roller grinding system, controlling the fineness of the cement to be 320-340 m2/kg, and feeding the cement into a cement modification device by using a metering scale for modification. In order to improve the modification efficiency, a modification auxiliary agent is synchronously added into a cement modification device. And discharging the cement modified by the modifying device from a discharge port at the tail part, and conveying the cement to a finished cement product storage bin, wherein the fineness of the finished cement product discharged from the modifying device can be respectively controlled to be 340-380 m2/kg according to different varieties.
Through the modification, the particle distribution of the cement is more reasonable, and the slope n of the RRB particle distribution curve is less than or equal to 1.0; the single particle shape tends to be more spherical through the shaping effect, and the surface is relatively smooth; further dewatering a portion of the gypsum.
By modification, the distribution and the particle shape of cement particles completely meet the requirements of high-performance cement, and the comprehensive performance of the cement is improved.
Adopt the utility model discloses a system carries out cement modification, and the production energy consumption is low (4 ~ 5 kWh/t), has realized the high-quality high performance cement of the end grinding technology production of the material bed of ultra-low energy consumption, and the total power consumption of system 24 ~ 25 kWh/t reduces 10% ~ 15% than present combined grinding system or half end grinding system power consumption.
The utility model discloses the system adopts high-efficient bag collector to carry out the waste gas dust removal of producing, and the dust discharges and can realize being less than or equal to 10mg Nm3。
Claims (2)
1. A cement powder particle modification system is characterized in that: comprises a cement intermediate storage bin, a blanking device, a conveying metering scale, a modified auxiliary agent storage tank, a metering pump, a cement modifying device, an air lock valve, a horizontal conveying device I and a lifter, wherein ground cement is conveyed into the cement intermediate storage bin for storage, a discharge port of the cement intermediate storage bin is connected with a feed port of the blanking device, a discharge port of the blanking device is connected with a feed port of the conveying metering scale, a discharge port of the conveying metering scale is connected with a feed port of the cement modifying device, the discharge port of the modified auxiliary agent storage tank is connected with the feed port of the cement modifying device through a metering pump, the discharge port of the cement modifying device is connected with the feed port of the air locking valve, the discharge port of the air locking valve is connected with the feed port of the horizontal conveying device, the discharge port of the horizontal conveying device is connected with the feed port of the elevator, and the discharge port of the elevator is connected with cement warehousing conveying equipment.
2. The cement powder particle modification system according to claim 1, characterized in that: the air outlet of the bag dust collector is connected with the air inlet of the fan, the air inlet of the bag dust collector is connected with the air outlet of the cement modification device, the discharge port of the bag dust collector is connected with the feed inlet of the air locking valve, the discharge port of the air locking valve is connected with the feed inlet of the horizontal conveying device II, and the discharge port of the horizontal conveying device II is connected with the feed inlet of the elevator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020008714.8U CN211726108U (en) | 2020-01-03 | 2020-01-03 | Be used for cement powder granule modification system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020008714.8U CN211726108U (en) | 2020-01-03 | 2020-01-03 | Be used for cement powder granule modification system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211726108U true CN211726108U (en) | 2020-10-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202020008714.8U Active CN211726108U (en) | 2020-01-03 | 2020-01-03 | Be used for cement powder granule modification system |
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| CN (1) | CN211726108U (en) |
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2020
- 2020-01-03 CN CN202020008714.8U patent/CN211726108U/en active Active
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