Novel comprehensive coal pulverizing system

Abstract

The utility model relates to a novel comprehensive pulverizing system which comprises a drying and pulverizing section, the drying and pulverizing section comprises a mill, a hot blast stove, a primary dust collector, a fan and a pipeline, the hot blast stove supplies hot air into the mill through the closed pipeline, and the primary dust collector is used for collecting powder sent out by the mill; and the fan is used for sending the hot air pumped out of the primary dust collector back to the hot blast stove again. According to the utility model, hot air is introduced into the mill through the hot air furnace, zeolite materials are ground and dried in the mill at the same time, and fine materials are dried more easily under the action of the hot air than blocky large materials, so that the energy-saving effect is achieved; and hot air in the primary dust collector is recycled through the fan, so that energy can be further saved. Meanwhile, the zeolite powder making process can be simplified when the zeolite powder making device is used for making powder, and the number of devices used in the zeolite powder making process is reduced. According to the utility model, through a reasonable equipment arrangement form, the occupied area of the novel comprehensive coal pulverizing system is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of mine machinery, concretely relates to a novel comprehensive powder making system. BACKGROUND

[0002] The zeolite powder is ground from natural zeolite rock, and the production process mainly includes grinding, mixing and modification. The zeolite rock is crushed by a crusher, and then the crushed rock is ground into powder. The zeolite powder and other powders are uniformly mixed, and other materials are added as modifiers or additives in the mixed powder to form an actual product.

[0003] For various interval powders in market demand, a two-step method is used in the actual production at present. The zeolite is dried by a dryer, and then the dried zeolite is cooled and fed into a ball mill for powder making. Finally, the powder is output after a powder selection section. The existing technology has the following disadvantages: 1. The equipment layout is improper, resulting in complicated process, many devices, high failure rate, large floor area, and large noise of the ball mill; and 2. The large block of zeolite is dried, and the drying efficiency is low and the energy consumption is high. SUMMARY

[0004] The utility model aims to provide a novel comprehensive powder making system to solve the problems in the process of processing zeolite powder in the prior art.

[0005] Therefore, the utility model of a novel comprehensive powder making system adopts the following technical scheme:

[0006] A novel comprehensive powder making system includes a drying and powder making section, which includes a mill, a hot blast stove, a primary dust collector, a fan, an air regulating valve and a pipeline connecting each part. The hot blast stove supplies hot air into the mill through a closed pipeline. The primary dust collector is used to collect the powder sent by the mill. The fan is used to extract the hot air in the primary dust collector. The air outlet of the fan is communicated with the air return port of the hot blast stove, and the hot air filtered by the primary dust collector is sent back into the hot blast stove through the air regulating valve.

[0007] Further, the drying and powder making section further includes an opening-adjustable cold air valve, which is communicated with the mill cavity through a pipeline to convey cold air into the mill cavity.

[0008] Further, the drying and powdering section further comprises a return belt conveyor, a first end of the return belt conveyor is located below the discharge port of the mill, the drying and powdering section further comprises a second iron remover which is arranged above the return belt conveyor and used for removing iron blocks in the material, the return belt conveyor is used for feeding the hard slag discharged from the discharge port back to the mill after the iron blocks are removed.

[0009] Further, the crushing section further comprises an ore crusher, a hammer crusher, a belt conveyor and a first iron remover, the belt conveyor has two groups, one group of the belt conveyor is located behind the ore crusher to feed the material after the first crushing into the hammer crusher, the other group of the belt conveyor is located behind the hammer crusher to feed the material after the second crushing into the drying and powdering section, the first iron remover is arranged above the end of each group of the belt conveyor.

[0010] Further, the crushing section further comprises a first bucket elevator, a dust collector and a distributor, the first bucket elevator is connected with the belt conveyor behind the hammer crusher and the inlet of the distributor to elevate the height of the material after the crushing; the dust collector is arranged at a dropping position of the material, the distributor comprises two outlets, one outlet is connected with the drying and powdering section to feed the material into the drying and powdering section, and the other outlet is used for discharging the material after the crushing out of the system to be directly sold as a small particle size raw material product; the outlet of the return belt conveyor is connected with the lower end of the first bucket elevator to feed the received hard slag back to the mill.

[0011] Further, the drying and powdering section is provided with a powder selecting section, the powder selecting section comprises a double-head compound powder selecting machine, the double-head compound powder selecting machine comprises an upper head and a lower head, the upper head comprises a middle inlet, an upper outlet and a lower discharge port, the lower head comprises an upper inlet and a lower outlet, the upper inlet of the lower head is located below the lower discharge port of the upper head, the upper inlet of the lower head and the lower discharge port of the upper head are connected and a lock air valve which can be opened and closed is arranged on the connected path, and the powder selecting particle size of the upper head is smaller than that of the lower head.

[0012] Further, the powder selecting section further comprises a superfine powder dust collector, a fine powder dust collector and a conveying part, the superfine powder dust collector is communicated with the discharge port of the upper machine head, the fine powder dust collector is communicated with the discharge port of the lower machine head; the conveying part comprises a bucket elevator II and a screw conveyor I for conveying the superfine powder in the superfine powder dust collector, further comprises a screw conveyor II for conveying the fine powder in the fine powder dust collector and a chute for conveying the coarse powder discharged from the coarse powder discharge port of the lower machine head, the end of the chute away from the coarse powder discharge port of the lower machine head extends downwardly.

[0013] Further, the belt conveyor after the hammer crusher is provided with a metering module for metering the weight of the material sent by the crushing section, the drying and powdering section comprises a belt metering scale for metering the weight of the material sent into the drying and powdering section, one outlet of the distributor is connected to the belt metering scale, the tail end of the belt metering scale is connected to the mill to send the material into the mill, and the belt metering scale is enclosed around to avoid overflow of the powder.

[0014] Further, the mill is a vertical roller mill, the vertical roller mill comprises a drum-shaped grinding roller and a bowl-shaped groove, the convex part of the drum-shaped grinding roller and the inner concave surface of the bowl-shaped groove are both fixed with a hard array structure, and the hardness of the hard array structure is higher than the hardness of the drum-shaped grinding roller and the bowl-shaped groove.

[0015] Further, the hard array comprises a plurality of hard monomers, and the opposite faces of the hard monomers on the drum-shaped grinding roller and the bowl-shaped groove are spherical faces.

[0016] Compared with the prior art, the utility model has the advantages and beneficial effects that:

[0017] In the utility model, hot air is introduced into the mill through the hot blast furnace, the zeolite material is ground and dried in the mill, and the fine material is more easily dried than the blocky large material under the action of the hot air, so that the energy-saving effect is achieved. The process of zeolite powdering is simplified, and the amount of equipment used in the process of zeolite powdering is reduced. The hot air carrying the material into the primary dust collector is recycled and sent back to the hot blast furnace through the fan, so that the heat is recycled and utilized, and energy saving is further achieved.

[0018] The temperature in the mill cavity can be quickly adjusted through the cold air valve, so that the service life of the mill roller bearing is not affected by the excessively high temperature in the mill cavity.

[0019] The fan continuously draws the hot air and the material in the vertical roller mill into the primary dust collector. Under the action of the air volume and air pressure of the fan, negative pressure is formed, so that the hot air in the hot blast furnace continuously flows into the vertical roller mill under the action of the negative pressure, and then the material and the hot air are separated by the primary dust collector.

[0020] Meanwhile, the tower type equipment arrangement form reduces the floor area of the novel comprehensive pulverizing system.

[0021] And the higher-hardness hard array structure added on the matching surface of the drum-shaped grinding roller and the bowl-shaped groove of the vertical roller mill makes the grinding performance of the novel comprehensive pulverizing system stronger, and the particle size and hardness of the super-hard composite spherical hard array structure can be adjusted according to the characteristics of the material, so as to improve the compatibility of the novel comprehensive pulverizing system, so that the novel comprehensive pulverizing system can be used not only for zeolite grinding, but also for grinding other materials.

[0022] The additional aspects and advantages of the present application will be partially given in the following description, partially become obvious from the following description, or be understood through the practice of the present application. BRIEF DESCRIPTION OF DRAWINGS

[0023] The above and / or additional aspects and advantages of the present application will become apparent and more readily appreciated from the following description of the embodiments, taken in conjunction with the following drawings of which:

[0024] Figure 1 is a structural block diagram of a novel comprehensive pulverizing system of the present application;

[0025] Figure 2 is a structural schematic view of the feeding section and the crushing section;

[0026] Figure 3 is a structural schematic view of the drying and grinding section, the powder selecting section and the dust collecting section;

[0027] Figure 4 is a partial structural schematic view of the vertical roller mill.

[0028] Among them: 100, crushing section; 200, drying and grinding section; 300, powder selecting section; 400, dust collecting section; 500, storage section; 600, feeding section;

[0029] 11, jaw crusher; 12, hammer crusher; 13, belt conveyor; 14, iron remover I; 15, dust remover; 16, distributor; 17, bucket elevator I; 22, belt metering scale; 23, vertical roller mill; 24, return belt conveyor; 25, hot blast stove; 26, primary dust collector; 27, fan; 28, chimney; 31, double-head composite powder classifier; 32, superfine powder dust collector; 33, fine powder dust collector; 34, air lock valve; 35, screw conveyor I; 36, screw conveyor II; 37, bucket elevator II; 38, chute; 41, superfine powder finished product bin; 42, fine powder finished product bin; 43, coarse powder finished product bin; 44, ton bag machine; 45, multi-nozzle bagging machine; 46, belt conveyor; 47, bag cleaning machine; 231, drum-shaped grinding roller; 232, bowl-shaped groove; 233, hard array structure. DETAILED DESCRIPTION

[0030] The embodiments of the present application are described in detail below, examples of which are shown in the drawings, wherein the same or similar notations represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and are intended to explain the present application, and cannot be understood as a limitation of the present application.

[0031] In the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connecting", "fixing" and the like should be understood in a broad sense, for example, can be fixedly connected, or can be detachably connected, or integrally connected; can be mechanically connected, or can be electrically connected; can be directly connected, or can be indirectly connected through an intermediate medium, or can be connected inside two elements. For those skilled in the art, the specific meanings of the above terms in the present application can be understood according to the specific circumstances.

[0032] Embodiment one of the novel comprehensive powder making system of the present application:

[0033] The structure of the novel comprehensive powder making system of the present application is shown as Figures 1 to 3 illustrated, comprising a crushing section 100, a drying and powder making section 200, a powder classifying section 300, a dust collecting section 400, a storage section 500, and further comprising a feeding section 600.

[0034] The feeding section 600 comprises a vibrating feeder 61. The crushing section 100 comprises a jaw crusher 11, a hammer crusher 12, a belt conveyor 13, an iron remover I 14, a dust remover 15, a distributor 16, and a bucket elevator I 17. The jaw crusher 11 is used for primary crushing of zeolite rock, and the hammer crusher 12 is used for secondary crushing of zeolite rock. The dropping point of the vibrating feeder 61 is connected to the feeding port of the jaw crusher 11.

[0035] It can be understood that the zeolite rock can contain iron products and other impurities that cannot be broken, so the crushing section 100 further comprises an iron remover 14, which is located above the belt conveyor 13 to be sucked out when the iron products pass below.

[0036] In this embodiment, a set of belt conveyors 13 are arranged behind the jaw crusher 11 and behind the hammer crusher 12, respectively. The rear end of the belt conveyor 13 is inclined upward to achieve the height of the material. The iron remover 14 is located above the high point of the rear end of the belt conveyor 13.

[0037] Meanwhile, a metering module is arranged on the belt conveyor 13 behind the hammer crusher 12, which is used to measure the total weight of the crushed material sent out by the hammer crusher 12.

[0038] The bucket elevator 17 is connected to the belt conveyor 13 behind the hammer crusher 12 and the distributor 16. The distributor 16 has two outlets, one of which is connected to the drying and grinding section, and the other is used to output the crushed zeolite material. The output product is directly sold or stored as small-diameter raw materials. Small-diameter raw materials refer to materials with a particle size of less than 5 mm. The dust collector 15 is arranged at a position where the zeolite material needs to fall downward to flow into the next device to suck up the dust raised.

[0039] The drying and grinding section 200 includes a belt metering scale 22, a vertical roller mill 23, a return belt conveyor 24, a hot blast stove 25, a primary dust collector 26, a fan 27, a chimney 28, and pipelines connecting each part. The hot blast stove 25 is used to continuously provide hot air for the vertical roller mill 23. The zeolite material is ground and dried in the vertical roller mill 23. The fine material is more easily dried than the large material under the action of hot air, thereby achieving energy-saving effect.

[0040] The belt metering scale 22 can measure the total amount of material entering the drying and grinding section 200, and it is a structure that is closed on all sides to avoid powder overflow. The vertical roller mill 23 includes a powder selection mechanism at the upper end, which can perform primary powder selection on the zeolite material. The qualified powder is driven into the primary dust collector 26 by the hot air flow, and the unqualified powder falls back into the grinding cavity under the action of gravity and is ground again. The vertical roller mill with the powder selection function is prior art, and its structure and working principle will not be described in detail in this application.

[0041] The return belt conveyor 24 is located below the discharge port of the vertical roller mill 23 to receive hard slag discharged from the discharge port. The discharge end of the return belt conveyor 24 is connected to the lower end of the bucket elevator 17 to re-send the received hard slag to the distributor 16, and then through the distributor 16 and the belt metering scale 22 to return to the vertical roller mill 23. In this embodiment, an iron remover 2 is arranged above the return belt conveyor 24 to remove iron blocks in the material.

[0042] It is emphasized that in the embodiment, the hot air furnace 25 supplies hot air into the vertical roller mill 23 through the closed pipeline, and the hot air enters the primary dust collector 26 through the discharge port of the vertical roller mill 23, and the fan 27 sends the hot air back into the hot air furnace 25 to further reduce the energy consumption. The excess hot air entering the fan 27 is discharged through the chimney 28, and the air regulating valve is provided at the chimney 28. The air regulating valve is a butterfly valve with adjustable opening degree. The air regulating valve can realize opening degree adjustment, and the excess air volume at the outlet of the fan and the water vapor in the material can be discharged outside the system through the air regulating valve, so that the hot air utilization rate can be greatly improved, and the energy saving and emission reduction effect can be achieved.

[0043] In the embodiment, cold air can also be supplied into the vertical roller mill 23 to adjust the temperature therein. The size of the cold air is controlled by the cold air valve with adjustable opening degree. The cold air can be directly supplied into the pipeline of the vertical roller mill 23 for heating by the hot air furnace 25, or a cold air inlet can be additionally provided on the vertical roller mill 23 to supply cold air to the vertical roller mill 23 through an independent pipeline. The supply of cold air can quickly adjust the temperature in the mill cavity, so as to avoid that the temperature in the mill cavity is too high to affect the service life of the mill roller bearing.

[0044] The powder selection section 300 includes a double-head composite powder selection machine 31, a superfine powder dust collector 32, a fine powder dust collector 33, and a conveying part for sending the powder to the dust collection section 400. The double-head composite powder selection machine 31 includes an upper head and a lower head. The discharge port of the upper head is at the upper end, and the feeding port is at the lower end. The discharge port of the lower head is at the lower end, and the feeding port is at the upper end. The discharge port of the upper head is a fine powder discharge port, and the discharge port of the lower head is a coarse powder discharge port. The upper head further includes a discharge port at the lower end for discharging larger zeolite particles. An air lock valve 34 is provided between the upper head and the lower head. The discharge port of the primary dust collector 26 is communicated with the feeding port of the double-head composite powder selection machine 31 to send the zeolite powder into the upper head of the double-head composite powder selection machine 31.

[0045] After the zeolite powder sent by the primary dust collector 26 enters the upper head, the superfine powder part is moved upward by the airflow, and is collected by the superfine powder dust collector 32 after passing through the powder selection part of the upper head. Larger zeolite particles that cannot pass through the upper head will enter the upper powder collecting bin of the lower head when the air lock valve 34 is opened, and then be selected again by the powder selection part of the lower head. The relatively fine powder in the lower head is collected by the fine powder dust collector 33, and the coarse powder is collected by the side slide chute scraper in the lower head and then output to the dust collection section 400 through the chute 38. The powder in the superfine powder dust collector 32 and the fine powder dust collector 33 is also sent to the dust collection section 400.

[0046] The air flow supplied by the hot blast furnace 25 provides heat for the vertical roller mill 23 under the action of the fan 27, and has the effect of removing moisture in the material. The fan 27 continuously draws the hot air and the material in the vertical roller mill 23 into the primary dust collector 26. Under the action of the air volume and air pressure of the fan 27, a negative pressure is formed, so that the hot air in the hot blast furnace 25 continuously flows into the vertical roller mill 23 under the action of the negative pressure, and then the material and the hot air are separated by the primary dust collector 26. After the hot air is circulated and the material is collected, the material enters the powder selecting section 300.

[0047] The dust collecting section 400 includes a superfine powder finished product warehouse 41, a fine powder finished product warehouse 42, and a coarse powder finished product warehouse 43. Each finished product is distinguished according to the particle size of the stored powder. The superfine powder finished product warehouse 41 collects superfine powder with a particle size less than 0.02 mm, the fine powder finished product warehouse 42 collects fine powder with a particle size between 0.02 mm and 0.05 mm, and the coarse powder finished product warehouse collects coarse powder with a particle size between 0.05 mm and 0.2 mm. The superfine powder in the superfine powder dust collector 32 is sent into the superfine powder finished product warehouse 41 through the bucket elevator II 37 and the screw conveyor I 35. The fine powder in the fine powder dust collector 33 is sent into the fine powder finished product warehouse 42 through the screw conveyor II 36. The coarse powder output through the chute 38 is input into the coarse powder finished product warehouse 43.

[0048] In other embodiments, the dust collecting section 400 can also include a mechanism for packaging, such as one or more of a ton bag machine 44 and a multi-nozzle bagging machine 45, a mechanism for transporting packaged powder, such as a belt conveyor 46, a mechanism for counting the number of packaged powder bags, such as a bag counting machine 47, and can also include a powder tank truck for bulk delivery.

[0049] In this embodiment, in order to improve the grinding effect of the vertical roller mill and increase the service life of the vertical roller mill, a hard array structure 233 is fixed on the raised part of the drum-shaped grinding roller 231 and the recessed part of the bowl-shaped groove 232. The hard array structure 233 on the raised part of the drum-shaped grinding roller 231 and the hard array structure 233 on the recessed part of the bowl-shaped groove 232 are pressed and ground by the material layer. The hard array structure 233 includes a plurality of hard monomers embedded on the surface of the drum-shaped grinding roller or the inner and outer surfaces of the bowl-shaped groove. The hardness of the hard monomers is much higher than the hardness of the main part of the drum-shaped grinding roller 231 and the bowl-shaped groove 232, which can easily grind the zeolite material. It can also reduce the wear of the roller skin and prolong the service life of the roller skin. The opposite faces of the hard monomers on the drum-shaped grinding roller and the bowl-shaped groove main part are spherical to achieve more uniform grinding effect.

[0050] In this embodiment, the hard monomers are fixed on the roll surface of the drum-shaped grinding roller 231 and the inner concave surface of the bowl-shaped groove 232 in the form of brazing. When the hard array structure 233 needs to be changed, the hard monomers only need to be knocked off and other forms of hard monomers are re-welded. Of course, it can be understood that in other embodiments, the opposite faces of the hard monomers on the drum-shaped grinding roller and the bowl-shaped groove body can be other geometric shapes other than spherical surfaces.

[0051] Meanwhile, the hard array structure can also adjust the size of the spherical surface structure according to the characteristics of the material, and the hardness is different in size. When the material Mohs hardness is relatively high (i.e. ≥ 6), the size of the single superhard composite spherical surface can be increased. Conversely, when the material is relatively easy to process, the diameter of the superhard composite spherical surface can be reduced. The utility model can adjust the hardness of the hard array structure 233 by changing the material of the hard monomer, so that the vertical roller mill can grind different materials without replacing the drum-shaped grinding roller 231 and the bowl-shaped groove 232, thereby making the vertical roller mill have high compatibility. Therefore, the utility model is not limited to zeolite grinding, but can also be used in other stone crushing and grinding occasions.

Claims

1. A new integrated pulverizing system, characterized by: The drying and powdering section comprises a mill, a hot blast stove, a primary dust collector, a fan, an air regulating valve and pipelines connecting each part, the hot blast stove supplies hot air into the mill through a closed pipeline, the primary dust collector is used to collect the powder discharged from the mill, and the fan is used to extract the hot air in the primary dust collector, the air outlet of the fan is communicated with the air return port of the hot blast stove, and the hot air filtered by the primary dust collector is sent back into the hot blast stove through the air regulating valve.

2. A novel integrated pulverizing system as claimed in claim 1, wherein: The drying and powdering section further comprises a cold air valve with adjustable opening degree, which is communicated with the mill cavity through a pipeline to convey cold air into the mill cavity.

3. A novel integrated pulverizing system as claimed in claim 1, wherein: The drying and powdering section further comprises a return belt conveyor, the first end of the return belt conveyor is located below the mill slag discharge port, the drying and powdering section further comprises a second iron remover arranged above the return belt conveyor, the second iron remover is used to remove iron blocks in the material, and the return belt conveyor is used to send the hard slag discharged from the slag discharge port back into the mill after iron removal; the drying and powdering section further comprises a chimney, the air regulating valve is a butterfly valve with adjustable opening degree, and the excess air and water vapor in the material are discharged out of the system through the chimney after passing through the butterfly valve.

4. A novel integrated pulverizing system as claimed in claim 3, wherein: The crushing section further comprises an impact crusher, a hammer crusher, a belt conveyor and a first iron remover, the belt conveyor has two groups, one group of belt conveyor is located behind the impact crusher to send the once-crushed material into the hammer crusher, and the other group of belt conveyor is located behind the hammer crusher to send the twice-crushed material into the drying and powdering section, and the first iron remover is arranged above the end of each group of belt conveyor.

5. A novel integrated pulverizing system as claimed in claim 4, wherein: The crushing section further comprises a first bucket elevator, a dust collector and a distributor, the first bucket elevator is connected with the belt conveyor behind the hammer crusher and the inlet of the distributor to lift the height of the crushed material, the dust collector is arranged at the material falling position, the distributor comprises two outlets, one outlet is connected with the drying and powdering section to send the material into the drying and powdering section, and the other outlet is used to discharge the crushed material out of the system and directly sell it as small particle size raw material product; the outlet of the return belt conveyor is connected with the lower end of the first bucket elevator to send the received hard slag back into the mill.

6. A novel integrated pulverizing system as claimed in claim 5, wherein: The drying and powdering section is provided with a powder selecting section, the powder selecting section comprises a double-head compound powder selecting machine, the double-head compound powder selecting machine comprises an upper machine head and a lower machine head, the upper machine head comprises a middle inlet, an upper outlet and a lower discharge port, the lower machine head comprises an upper inlet and a lower outlet, the lower inlet of the lower machine head is located below the discharge port of the upper machine head, a lock air valve which can be opened and closed is arranged in the communication path between the lower inlet of the lower machine head and the discharge port of the upper machine head, and the powder selecting particle size of the upper machine head is smaller than that of the lower machine head.

7. A novel integrated pulverizing system as claimed in claim 6, wherein: The powder selecting section further comprises a superfine powder dust collector, a fine powder dust collector and a conveying part, the superfine powder dust collector is communicated with the discharge port of the upper head, the fine powder dust collector is communicated with the discharge port of the lower head; the conveying part comprises a bucket elevator II for conveying the superfine powder in the superfine powder dust collector and a screw conveyor I, further comprises a screw conveyor II for conveying the fine powder in the fine powder dust collector and a chute for conveying the coarse powder discharged from the coarse powder discharge port of the lower head, the end of the chute away from the coarse powder discharge port of the lower head extends downwardly.

8. A novel integrated pulverizing system as claimed in claim 6, wherein: A metering module is arranged on the belt conveyor behind the hammer crusher for metering the weight of the material discharged from the crushing section, the drying and powdering section comprises a belt metering scale for metering the weight of the material fed into the drying and powdering section, one outlet of the distributor is connected to the belt metering scale, the tail end of the belt metering scale is connected to the mill for feeding the material into the mill, and the belt metering scale is enclosed around to avoid overflow of the powder.

9. A novel integrated pulverizing system as claimed in any one of claims 1 to 8, wherein: The mill is a vertical roller mill, the vertical roller mill comprises a drum-shaped grinding roller and a bowl-shaped groove, the convex part of the drum-shaped grinding roller and the inner concave surface of the bowl-shaped groove are both fixed with a hard array structure, and the hardness of the hard array structure is higher than the hardness of the drum-shaped grinding roller and the bowl-shaped groove.

10. A novel integrated pulverizing system as claimed in claim 9, wherein: The hard array comprises a plurality of hard monomers, and the opposite surfaces of the hard monomers on the drum-shaped grinding roller and the bowl-shaped groove are spherical surfaces.

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