CN202078952U - Material grinding system - Google Patents
Material grinding system Download PDFInfo
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- CN202078952U CN202078952U CN2010206653719U CN201020665371U CN202078952U CN 202078952 U CN202078952 U CN 202078952U CN 2010206653719 U CN2010206653719 U CN 2010206653719U CN 201020665371 U CN201020665371 U CN 201020665371U CN 202078952 U CN202078952 U CN 202078952U
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Abstract
The utility model provides a material grinding system in order to overcome the defects that: in the prior art, the grinding efficiency of a grinding machine is low, the moisture content of finished products is high, and the process requirements cannot be met due to the impact of material moisture on the grinding system. The material grinding system comprises a silo, a grinding machine, a coarse and fine powder separation device and a dust collection device, wherein the coarse and fine powder separation device is also communicated with the feed end of the grinding machine or the silo, and the silo comprises silo walls and a silo bottom; and a pre-grinding prebaking device for baking a material is arranged on the silo and/or a discharge channel between the silo and the grinding machine. The pre-grinding prebaking device is arranged on the material grinding system so as to reduce the moisture content of the material before the material enters the grinding machine, improve the grinding efficiency of the grinding machine, reduce the moisture content of the finished products, and improve the quality of the finished products, so that the process requirements are met.
Description
Technical field
The utility model relates to a kind of material handling system, particularly a kind of material grinding system.
Background technology
In the prior art, typical material grinding system includes feed bin, grinding machine, thickness powder separator (powder concentrator or grader or separator etc.) and dust arrester installation, and grinding machine wherein can be many tube mills of a tube mill or series connection or vertical mill and the disintegrating machine of tube mill or series connection and the roll squeezer and the tube mill of tube mill or series connection of series connection.Material in the feed bin enters grinding machine, grinding machine to material dry with grinding, grinding after material grinding, fine powder become finished product by dust arrester installation again for thick and thin two kinds of powders, meal return feed bin or directly enter grinding machine through thickness powder separator screening.In said process, the oven dry of material is carried out in vertical mill or tube mill, because the drying function of vertical mill and tube mill only is its auxiliary function, so grinding machine is reduced to perfect condition to the moisture of material to the oven dry of material is very difficult.And generally, the moisture content of material mill efficiency high more, grinding machine is low more; The moisture content of material is low more, the mill efficiency of grinding machine is high more.Because the general moisture content of initial material is more than 3% in the prior art, descend the moisture content of material can be very high in snow day and rainy weather condition, so low, the finished product moisture content height of mill efficiency of the grinding machine of existing grinding system, can not satisfy technological requirement.
The utility model content
In order to solve in the prior art low, the finished product moisture content height of mill efficiency of the grinding machine that the influence of grinding system is produced owing to material moisture, can not reach the defective of technological requirement, the utility model provides a kind of material grinding system, this system is provided with the preceding prebake device of mill, with the moisture content of reduce the material before the grinding machine, improved the mill efficiency of grinding machine and reduced finished product moisture content, improved end product quality, make it satisfy technological requirement.
Technical scheme:
A kind of material grinding system, comprise the feed bin, grinding machine, thickness powder separator and the dust arrester installation that link to each other successively, described thickness powder separator also is connected with the feeding end of described grinding machine or with described feed bin, described feed bin comprises at the bottom of bulkhead and the storehouse, it is characterized in that, on the described feed bin and/or the blanking channel between described feed bin and the described grinding machine be provided with prebake device before the mill that is used to dry material.
The prebake device is included in the hot blast generator that is provided with on the described feed bin before the described mill, described hot blast generator comprises one or more groups gas transfer pipeline, the inside of wherein respectively organizing described gas transfer pipeline is connected, and comprise at least on every group of described gas transfer pipeline that an air inlet is used for being connected with the external heat wind regime, be provided with one or more exhaust outlets on every group of described gas transfer pipeline, described exhaust outlet is positioned at described feed bin inside.
One group of described gas transfer pipeline wherein comprises an air inlet pipe and one or more blast pipe that is connected with described air inlet pipe respectively, offer described air inlet on the described air inlet pipe, described one or more blast pipe is for being positioned at described feed bin and vertically disposed one or more straight tube, all offer one or more exhaust outlets on the described every straight tube, described exhaust outlet is towards horizontal direction or towards tiltedly direction setting down; And/or,
One group of described gas transfer pipeline wherein comprises an air inlet pipe and one or more blast pipe that is connected with described air inlet pipe respectively, offer described air inlet on the described air inlet pipe, described one or more blast pipe is for being positioned at described feed bin and horizontally disposed one or more ring pipe, all offer one or more exhaust outlets on the described every ring pipe, described exhaust outlet is provided with towards horizontal direction or towards oblique direction down or towards the below.
The prebake device comprises hot blast air compartment device before the described mill, and described hot blast air compartment device comprises by at the bottom of not leaking the storehouse that the material ventilating board makes, the airtight air compartment that surrounds around at the bottom of described storehouse, and described air compartment is connected with the external heat wind regime; And/or described hot blast air compartment device comprises the bulkhead or the part bulkhead of expecting that by not leaking ventilating board is made, the airtight air compartment that around described bulkhead or part bulkhead, surrounds, and described air compartment is connected with the external heat wind regime; And/or described hot blast air compartment device comprises the blanking channel or the part blanking channel of expecting that by not leaking ventilating board surrounds, the airtight air compartment that around described blanking channel or part blanking channel, surrounds, and described air compartment is connected with the external heat wind regime; Or described hot blast air compartment device comprises by at the bottom of not leaking material the ventilating board bulkhead and storehouse made, the airtight air compartment that surrounds around at the bottom of described bulkhead and storehouse, and described air compartment is connected with the external heat wind regime; Or, described hot blast air compartment device comprises by not leaking at the bottom of the material ventilating board storehouse of making and the part bulkhead, the airtight air compartment that at the bottom of described storehouse and around the part bulkhead, surrounds, described air compartment is connected with the external heat wind regime, and described part bulkhead is near the part bulkhead at the bottom of the storehouse.
The prebake device is included in one or more groups heat pipe that is provided with on the feed bin before the described mill, described every group of heat pipe comprises one or more hollow heat pipe, described hollow heat pipe is connected with the external heat wind regime, and the main body of described at least hollow heat pipe is positioned at described feed bin inside; And/or,
The prebake device is included in one or more groups heating rod that is provided with on the feed bin before the described mill, and the main body of described at least every group of heating rod is positioned at described feed bin inside.
Described hollow heat pipe runs through described bulkhead and is horizontally disposed with, and/or described heating rod runs through described bulkhead and is horizontally disposed with.
The cross section of described hollow heat pipe and/or described heating rod is oval, and described oval-shaped major axis is provided with along the Flow of Goods and Materials direction.
Described feed bin also includes Cang Ding, and described dust arrester installation is connected with described feed bin by described Cang Ding; Or,
Described feed bin also includes Cang Ding, and described material grinding system also includes second dust arrester installation, and described second dust arrester installation is connected with described feed bin by described Cang Ding.
Set out the air port on the air compartment that is positioned at around blanking channel or the part blanking channel, described air outlet is connected with described dust arrester installation; Or, on the air compartment that is positioned at around blanking channel or the part blanking channel, setting out the air port, described material grinding system also includes second dust arrester installation, and described air outlet is connected with described second dust arrester installation.
Described grinding machine is a tube mill or many tube mills that are in series or the vertical mill that is in series and tube mill or the disintegrating machine that is in series and tube mill or roll squeezer that is in series and tube mill.
Described material grinding system also includes metering feeding device, and described metering feeding device is between feed bin and grinding machine.
Technique effect:
The utility model provides a kind of material grinding system, on the feed bin of this material grinding system and/or the blanking channel between feed bin and the grinding machine be provided with prebake device before the mill that is used to dry material, before material enters grinding machine, material is carried out prebake, reduced the moisture content of going into the preceding material of grinding machine effectively, improved the mill efficiency of grinding machine, reduced simultaneously finished product moisture content, improved the quality of finished product.
Wherein, the prebake device includes the hot blast generator that is provided with before the mill on feed bin, hot blast is delivered in the feed bin by the gas transfer pipeline of hot blast generator, promptly by the mass transport hot blast of one or more exhaust outlets in feed bin, utilizes hot blast with the drying materials in the feed bin.
Further, the prebake device can also comprise hot blast air compartment device before the mill, and hot blast air compartment device comprises the air compartment that is connected with the external heat wind regime and by not leaking at the bottom of the storehouse that the material ventilating board makes and/or at the bottom of bulkhead or part bulkhead and/or blanking channel or part blanking channel or bulkhead and the storehouse or at the bottom of the storehouse and the part bulkhead.The hot blast that enters in the air compartment enters in feed bin or the blanking channel to dry the material in it by not leaking the material ventilating board.Certainly, hot blast air compartment device also can be independent of the hot blast generator and uses separately.
Hot blast and material that hot blast generator and/or hot blast air compartment device provide carry out heat exchange, hot blast after the heat exchange is entrained with the dust of material, the former gas mixture of expecting of this part is introduced the dust arrester installation or second dust arrester installation, and the gas of removing behind the material dust is discharged into atmosphere.
In addition, the prebake device can also be one or more groups heat pipe before the mill, every group of heat pipe comprises one or more hollow heat pipe, and to heat hollow heat pipe, hollow heat pipe after the heating and material carry out heat exchange with the oven dry material to the external heat wind regime to logical hot blast in the hollow heat pipe.Certainly, hollow heat pipe herein also can replace with heating rod.Preferably, hollow heat pipe and/or heating rod run through bulkhead and are horizontally disposed with, and therefore hollow heat pipe and/or heating rod can be avoided at the bottom of the storehouse, flow downward in order to avoid block material.
Preferably, the cross section of hollow heat pipe and/or heating rod is oval, and oval-shaped major axis is along the following direction of flow setting of material, make material in the blanking process, increase the contact area with hollow heat pipe and/or heating rod, improved heat exchanger effectiveness, be beneficial to the oven dry material.
Description of drawings
Fig. 1 is the schematic diagram of a kind of material grinding system in the prior art;
Fig. 2 is the schematic diagram of the material grinding system of a kind of embodiment of the utility model;
Fig. 3 looks schematic diagram for the master that feed bin is provided with the first hot blast generator;
Fig. 4 is the schematic top plan view of Fig. 3;
Fig. 5 is provided with the schematic top plan view of the second hot blast generator for feed bin;
Fig. 6 looks schematic diagram for the master that feed bin is provided with the first hot blast air compartment device;
Fig. 7 (a) and (b) are the master that blanking channel is provided with the second hot blast air compartment device and look schematic diagram;
Fig. 8 looks schematic diagram for the master that feed bin is provided with the 3rd hot blast air compartment device;
Fig. 9 looks schematic diagram for the master that feed bin is provided with one group of heat pipe;
Figure 10 is the schematic side view of Fig. 9;
Figure 11 looks schematic diagram for the master that feed bin is provided with one group of heating rod;
Figure 12 is the side view of Figure 11.
The Reference numeral example is as follows:
1 '-lifting conveying device, 2 '-contain the initial material of moisture, 3 '-feed bin, meal after 4 '-separation, 5 '-metering feeding device, 6 '-compound (meal after the separation and the compound of initial material), 7 '-tube mill hot blast, 8 '-drying tube mill, the material gas mixture behind 9 '-grinding, 10 '-separator, 11 '-dust arrester installation, 11 '-1 '-conveyer, 11 '-2 '-finished product, 11 '-3 '-blower fan, 11 '-4 '-chimney, 11 '-5 '-purified gas, 11 '-6 '-dust-precipitator, the material gas mixture after 12 '-separation;
1-promotes conveying device, and 2-contains the initial material of moisture, the 3-feed bin, the 3-1-bulkhead, at the bottom of the 3-2-storehouse, 3-3-Cang Ding, the 3-4-blanking channel, the meal after 4-separates, 5-metering feeding device, 6-compound (meal after the separation and the compound of initial material), 7-tube mill hot blast, the tube mill that 8-is drying, material gas mixture behind the 9-grinding, 10-separator, 11-dust arrester installation, the 11-1-conveyer, the 11-2-finished product, 11-3-blower fan, 11-4-chimney, the 11-5-purified gas, the 11-6-dust-precipitator, the material gas mixture after 12-separates, 13-second dust arrester installation, the 13-1-conveyer, 13-2-material dust, 13-3-blower fan, 13-4-chimney, the 13-5-purified gas, the 13-6-dust-precipitator, the former gas mixture of expecting of 14-, the 15-1-first hot blast generator, the 15-11-air inlet pipe, the 15-12-blast pipe, 15-13-exhaust outlet, 15-14-air inlet, the 15-2-second hot blast generator, the 15-21-air inlet pipe, 15-22-blast pipe, 15-23-exhaust outlet, the 15-24-air inlet, the 15-3-first hot blast air compartment device, 15-31 first air compartment, 15-32-do not leak at the bottom of the material ventilating board storehouse of making, the 15-33-air inlet, the 15-4-second hot blast air compartment device, 15-41-second air compartment, 15-42-do not leak one section blanking channel that the material ventilating board surrounds, the 15-43-air inlet, the 15-44-air outlet, 15-5-the 3rd hot blast air compartment device, 15-51-the 3rd air compartment, 15-52-does not leak the part bulkhead that the material ventilating board surrounds, the 15-53-air inlet, one group of heat pipe of 16-, the hollow heat pipe of 16-1-, one group of heating rod of 17-, the 17-1-heating rod.
The specific embodiment
In order to make the purpose of this utility model, technical scheme and advantage clearer,, the utility model is further elaborated below in conjunction with drawings and Examples.Should be appreciated that specific embodiment described herein only in order to explanation the utility model, and be not used in qualification the utility model.
Be illustrated in figure 1 as the schematic diagram (dotted line is wherein represented gas, and arrow is represented the flow direction of gas or material) of material grinding system in the prior art.The initial material 2 ' that contains moisture enters feed bin 3 ' by promoting conveying device 1 ', material in the feed bin is through the drying tube mill 8 ' of metering feeding device 5 ' feeding, material is oven dry storehouse and the grinding storehouse by drying tube mill 8 ' successively, hot blast 7 ' is dried the material of oven dry in the storehouse, the material after the drying in the grinding storehouse by grinding.Material gas mixture 9 ' behind the grinding enters separator 10 ' and carries out the thickness powder separation, meal 4 ' after the separation is sneaked into initial material formation compound 6 ' and is reentered drying tube mill 8 ', the material gas mixture 12 ' that fine powder after the separation and wind form after separating enters in the dust-precipitator 11 '-6 ' of dust arrester installation 11 ', finished product 11 '-2 ' reclaims by conveyer 11 '-1 ', enters atmosphere thereby purified gas 11 '-5 ' enters chimney 11 '-4 ' by blower fan 11 '-3 '.In said process, the oven dry of material has only been carried out once through the oven dry storehouse of tube mill 8 ' time, because the drying function of tube mill 8 ' is its additional function, drying efficiency is very limited, descend for the bigger material of moisture content or in the situation of snow day or rainy day, material can't be dried the regulation moisture content and just entered the grinding storehouse and carry out grinding, because the moisture content of material and the mill efficiency of grinding machine are contacted directly, in general, the mill efficiency of the big more grinding machine of the moisture content of material is low more, the mill efficiency of the more little then grinding machine of the moisture content of material is high more, and therefore, the material that moisture content is big directly causes the mill efficiency reduction in grinding storehouse promptly to yield poorly after entering the grinding storehouse.Further, owing to enter the moisture content height of the material in grinding storehouse, the fine powder that then grinds even the moisture content of finished product are all high, can not satisfy technological requirement.In addition,, also can cause the grinding storehouse in grinding process, to be difficult to control grinding fineness, influence end product quality owing to enter the moisture content height of the material in grinding storehouse.It more than is typical case's representative of the prior art, certainly drying tube mill 8 ' wherein can also substitute with vertical mill, can also substitute with the vertical mill and the tube mill of series connection, can also substitute with disintegrating machine and tube mill, can also substitute with roll squeezer and tube mill etc., but all can run into because the serial problem that the initial material moisture content causes greatly.
Fig. 2 is the schematic diagram (dotted line is wherein represented gas, and arrow is represented the flow direction of gas or material) of the material grinding system of a kind of embodiment of the utility model.This material grinding system is identical with the main device of material grinding system of the prior art, includes equally to promote conveying device 1, feed bin 3, metering feeding device 5, drying tube mill 8, separator 10 and dust arrester installation 11.Other is this material grinding system with the prior art phase region, also includes the preceding prebake device of mill and second dust arrester installation 13.The prebake device comprises the first hot blast generator 15-1, the second hot blast generator 15-2 before the mill, the first hot blast air compartment device 15-3 and the second hot blast air compartment device 15-4, moisture content according to material, four above hot air apparatus can use separately or certain several being used in combination, when being used in combination, preferably, can be connected with same hot air source.With gas after the material heat exchange in the feed bin 3 owing to be entrained with the material dust, directly entering atmosphere can pollute, therefore, the former gas mixture 14 of expecting is introduced among the dust-precipitator 13-6 of second dust arrester installation 13, when material dust 13-2 can not satisfy the finish fineness requirement, turn back in the feed bin 3 by conveyer 13-1; When material dust 13-2 can satisfy the finish fineness requirement, then be delivered directly on the conveyer 11-1 by conveyer 13-1; Thereby purified gas 13-5 enters chimney 13-4 by blower fan 13-3 and enters atmosphere.When the material dust that contains in the former gas mixture 14 of expecting can satisfy finish fineness and requires, can selectively also second dust arrester installation 13 can be set, the former gas mixture 14 of expecting is introduced into dust arrester installation 11 and purifies.
The master who has illustrated among Fig. 3 and Fig. 4 when the prebake device only includes the first hot blast generator 15-1 before the mill looks schematic diagram and schematic top plan view (dotted line is wherein represented gas, and arrow is represented the gas flow direction).The first hot blast generator 15-1 is one group of gas transfer pipeline, this gas transfer pipeline includes an air inlet pipe 15-11 and Duo Gen blast pipe 15-12, the main body of air inlet pipe 15-11 is positioned at feed bin 3 inside, one end mouth of pipe 15-14 (being air inlet) stretches out feed bin 3 outsides and is connected with hot air source, the air inlet pipe 15-11 that is positioned at feed bin 3 inside circularizes at the horizontal plane inner disc, and on the annular section of air inlet pipe 15-11, be interval with intercommunicating pore, be communicated with a blast pipe 15-12 on each intercommunicating pore, as shown in the figure, every blast pipe is for being positioned at a feed bin and a vertically disposed straight tube, offer a plurality of exhaust outlet 15-13 on the tube wall of every straight tube and be used to provide hot blast, preferably, exhaust outlet 15-13 will be towards horizontal direction or towards tiltedly direction setting down, to prolong the heat exchanger time of hot blast and material, improve heat exchanger effectiveness, and prevent that material is by the exhaust outlet gas transfer pipeline that bleeds.
Schematic top plan view when the prebake device only included the second hot blast generator 15-2 before Fig. 5 showed and grinds.The second hot blast generator 15-2 also is one group of gas transfer pipeline, this gas transfer pipeline includes an air inlet pipe 15-21 and two blast pipe 15-22 are (certain, also can be many blast pipe 15-22), air inlet pipe 15-21 is one and passes a side bulkhead 3-1 and horizontally disposed straight tube, an end mouth of pipe 15-24 (being air inlet) who is positioned at the feed bin outside of straight tube is connected with hot air source, is positioned on the straight tube 15-21 of feed bin 3 inside to offer intercommunicating pore; Blast pipe 15-22 is positioned at two ring pipes that feed bin 3 inner horizontal are provided with, wherein a ring pipe is positioned at the periphery of another root ring pipe (when many blast pipe 15-22, each root blast pipe is and is positioned at the ring pipe that feed bin 3 inner horizontal are provided with, in two adjacent ring pipes, a ring pipe wherein is positioned at the periphery of another root ring pipe), all offer the intercommunicating pore that is connected with intercommunicating pore on the straight tube on every ring pipe and make ring pipe be connected with straight tube.Also offer a plurality of exhaust outlet 15-23 on the tube wall of ring pipe and be used to provide hot blast, exhaust outlet 15-23 is provided with towards the below direction, exhaust outlet 15-23 also can be towards tiltedly direction or horizontal direction setting down, the purpose of She Zhiing is to prolong the heat exchanger time of hot blast and material like this, improve heat exchanger effectiveness, and prevent that material is by the exhaust outlet 15-23 gas transfer pipeline that bleeds.
The hot blast generator is not limited to first above-mentioned hot blast generator 15-1 and the dual mode of the second hot blast generator 15-2, as long as the gas transfer pipeline that satisfies following feature all can: gas transfer pipeline wants inside to be connected, hot blast portion's free-running operation within it, gas transfer pipeline comprises that at least one air inlet is connected to provide hot blast to gas transfer pipeline with the external heat wind regime, to be provided with exhaust outlet on the gas transfer pipeline, exhaust outlet will be positioned at feed bin inside, and the hot blast of discharging from exhaust outlet can play the effect of drying material.Preferably, exhaust outlet will be provided with towards horizontal direction or towards oblique down direction or towards the below, prolonging the heat exchanger time of hot blast and material, and the raising heat exchanger effectiveness, and prevent that material is by the exhaust outlet gas transfer pipeline that bleeds.Certainly, the prebake device can comprise the first hot blast generator 15-1 and the second hot blast generator 15-2 and other hot blast generators simultaneously or include only one of them before the mill, decides on the moisture content and the actual condition of material.
Schematic diagram (dotted line is wherein represented gas, and arrow is represented the gas flow direction) when the prebake device only included the first hot blast air compartment device 15-3 before Fig. 6 showed and grinds.The first hot blast air compartment device 15-3 comprises that the first airtight air compartment 15-31 that surrounds around the 15-32 offers air inlet 15-33 and is used to introduce the hot blast that the external heat wind regime provides on the first air compartment 15-31 by not leaking 15-32 at the bottom of the material ventilating board storehouse of making at the bottom of the storehouse.Enter hot blast in the first air compartment 15-31 by the storehouse of not leaking the material ventilating board and making at the bottom of 15-32 enter feed bin 3, carry out moving and entering in second dust arrester installation 13 or the dust arrester installation 11 to top, storehouse 3-3 direction after the sufficient heat exchange with material in the feed bin 3.Than the hot blast generator, the do not leak material ventilating board of the hot blast that the first hot blast air compartment device 15-3 provides at the bottom of the storehouse enters, it is more even that the inlet point of hot blast distributes, hot blast pushes up the stroke of 3-3 from 15-32 at the bottom of the storehouse to the storehouse, the stroke of wind is longer, with the material heat exchange more fully, fully, obviously drying effect is better.
Schematic diagram (dotted line is wherein represented gas, and arrow is represented the gas flow direction) when the prebake device only included the second hot blast air compartment device 15-4 before Fig. 7 (a) and Fig. 7 (b) showed and grind.Shown in Fig. 7 (a), the second hot blast air compartment device 15-4 comprises by not leaking one section blanking channel 15-42 (3-4) that the material ventilating board surrounds, the second airtight air compartment 15-41 that surrounds around this section blanking channel 15-42 offers air inlet 15-43 and is used to introduce the hot blast that the external heat wind regime provides on the second air compartment 15-41.The hot blast that enters in the second air compartment 15-41 enters blanking channel inside by the material ventilating board that do not leak on this section blanking channel 15-42, and 3-2 enters feed bin inside up to discharging from top, storehouse 3-3 at the bottom of along blanking channel from the storehouse, has carried out sufficient heat exchange with feed bin 3 interior materials in hot blast and the blanking channel in this process.Than the hot blast generator, the hot blast that the second hot blast air compartment device 15-4 provides enters from blanking channel, and hot blast is in the stroke of part blanking channel and whole feed bin, and the stroke of wind is longer, with the material heat exchange more fully, fully, obviously drying effect is better.Certainly, one section blanking channel herein can also be substituted by the whole blanking channels between feed bin 3 and the tube mill 8.Shown in Fig. 7 (b), the second hot blast air compartment device 15-4 comprises by not leaking one section blanking channel 15-42 (3-4) that the material ventilating board surrounds, the second airtight air compartment 15-41 that around this section blanking channel 15-42, surrounds, offer air inlet 15-43 on the second air compartment 15-41 and be used to introduce the hot blast that the external heat wind regime provides, also offer the gas after air outlet 15-44 is used to discharge heat exchange on the second air compartment 15-41 simultaneously.Hot blast enters the inside of the second air compartment 15-41 by air inlet 15-43, and the leakage material ventilating board that passes on this section blanking channel 15-42 enters blanking channel inside, carried out gas after the sufficient heat exchange with material in the blanking channel 15-42 and passed once more and do not leak the material ventilating board and enter the opposite side of the second air compartment 15-41 and discharge by air outlet 15-44.Because be mingled with the material dust in the gas of discharging, directly entering atmosphere can pollute, therefore, the air outlet 15-44 of the second air compartment 15-41 can be connected with second dust arrester installation 13 or be connected with dust arrester installation 11.
Hot blast air compartment device is not limited to the first above-mentioned hot blast air compartment device 15-3 and the 15-4 dual mode of the second hot blast air compartment device, can also comprise by at the bottom of not leaking material the ventilating board bulkhead and storehouse made, the airtight air compartment that surrounds around at the bottom of bulkhead and storehouse, the air inlet of offering on the air compartment is connected with the external heat wind regime, and the do not leak material ventilating board of the hot blast that enters air compartment at the bottom of by bulkhead and storehouse enters feed bin and then oven dry material; Can also comprise by not leaking at the bottom of the material ventilating board storehouse of making and the part bulkhead, the airtight air compartment that at the bottom of the storehouse and around the part bulkhead, surrounds, the air inlet of offering on the air compartment is connected with the external heat wind regime, the part bulkhead is near the part bulkhead at the bottom of the storehouse, the hot blast that enters air compartment by the storehouse at the bottom of and the material ventilating board that do not leak of part bulkhead enter feed bin and then oven dry material; Can also comprise by not leaking bulkhead or the part bulkhead that the material ventilating board is made, the airtight air compartment that around bulkhead or part bulkhead, surrounds, the air inlet of offering on the air compartment is connected with the external heat wind regime, and the hot blast that enters air compartment expects that by not leaking of bulkhead ventilating board enters feed bin and then oven dry material.Front view (dotted line is wherein represented gas, and arrow is represented the gas flow direction) when as shown in Figure 8, only including the 3rd hot blast air compartment device 15-5 for prebake device before grinding.The 3rd hot blast air compartment device 15-5 comprises by not leaking the part bulkhead 15-52 (3-1) that the material ventilating board is made, the 3rd airtight air compartment 15-51 that surrounds around this part bulkhead 15-52 offers air inlet 15-53 and is used to introduce the hot blast that the external heat wind regime provides on the 3rd air compartment 15-51.The hot blast that enters in the 3rd air compartment 15-51 enters feed bin 3 inside by the bulkhead 15-52 that does not leak the material ventilating board and make, and carries out moving and entering in second dust arrester installation 13 or the dust arrester installation 11 to top, storehouse 3-3 direction after the sufficient heat exchange with material in the feed bin 3.
In addition, except that the situation shown in the accompanying drawing 7 (b), hot blast that hot blast air compartment device provides and material carry out moving to top, storehouse 3-3 direction after the heat exchange, and this portion gas is mingled with the material dust, and directly entering atmosphere can pollute.Therefore, feed bin 3 is connected with second dust arrester installation 13 by top, storehouse 3-3, the former gas mixture 14 of expecting that material dust and gas form is introduced into second dust arrester installation 13 and handles, when the material dust does not satisfy the finish fineness requirement, then the material dust returns in the feed bin 3, when the material dust satisfied the finish fineness requirement, then the material dust was delivered directly on the conveyer 11-1 by conveyer 13-1, and purified gas enters atmosphere simultaneously; Perhaps when the material dust that contains in the initial material mixture 14 satisfies finish fineness and requires, feed bin 3 is connected with dust arrester installation 11 by top, storehouse 3-3, the former gas mixture 14 of expecting that material dust and gas form is introduced in the dust arrester installation 11, the material dust is sneaked into finished product, and purified gas enters atmosphere.
Above-mentioned various hot blast generators and various hot blast air compartment device, can select according to actual condition wherein one or more as the mill before the prebake device, to reach the purpose of this utility model.
The course of work of present embodiment is as follows:
The initial material 2 that contains moisture enters feed bin 3 by promoting conveying device 1, moisture content according to initial material 2, select among the first hot blast generator 15-1, the second hot blast generator 15-2, the first hot blast air compartment device 15-3, the second hot blast air compartment device 15-4 and the 3rd hot blast air compartment device 15-5 one to use separately or several combinations makes and is used for drying material, certainly, according to actual condition with consider financial cost, drying unit can only comprise certain or certain the several combination among 15-1～15-5 before the mill, does not need all to comprise.(in fact, the prebake device is not limited to above-mentioned 5 devices before the mill, can be one or more hot blast generators, can also be one or more hot blast air compartment devices, can also be the combination of one or more hot blast generators and hot blast air compartment device.) hot blast that provides of prebake device and material carry out being mingled with after the heat exchange material dust and push up the 3-3 direction to the storehouse and move before the mill, and enter second dust arrester installation 13 or dust arrester installation 11 is handled from storehouse top 3-3, the material dust is returned feed bin 3 or sneaks into finished product, and purified gas is discharged into atmosphere.The material of drying is through the drying tube mill 8 of metering feeding device 5 feedings, material is oven dry storehouse and the grinding storehouse by drying tube mill 8 successively, materials in 7 pairs of the hot blasts oven dry storehouse are further dried, the material after further the oven dry in the grinding storehouse by grinding.Material gas mixture 9 behind the grinding enters separator 10 and carries out the thickness powder separation, meal 4 after the separation is sneaked into initial material formation compound 6 and is reentered drying tube mill 8 (certainly, meal 4 after the separation also can directly return feed bin 3), the material gas mixture 12 that fine powder after the separation and wind form after separating enters among the dust-precipitator 11-6 of dust arrester installation 11, finished product 11-2 reclaims by conveyer 11-1, and purified gas 11-5 enters chimney 11-4 by blower fan 11-3 and enters atmosphere.Especially, in the embodiment shown in Fig. 7 (b), because the second hot blast air compartment device carries air outlet 15-44, the material dusty gas is introduced into second dust arrester installation 13 or dust arrester installation 11 is handled from being mingled with of discharging of air outlet 15-44.
Further, metering feeding device 5 in the present embodiment is the amounts for the material that is metered into drying tube mill 8, be not in order to realize the necessary parts of the utility model purpose, those skilled in the art have the ability to select to use or do not use according to actual condition.
The dust arrester installation 11 that is adopted in the utility model and second dust arrester installation 13 only are typical case's representatives of dust arrester installation, are not unique selection, all applicable the utility model of dust arrester installation that is used to collect finished product of the prior art.
In addition, the utility model is not limited to adopt separator 10, possess to separate thickness powder function, such as: dynamically powder concentrator, grader or gravity type grading plant etc. are all applicable.
The difference of present embodiment and embodiment 1 is, (dotted line is wherein represented gas as Fig. 9 and Figure 10, arrow is represented the gas flow direction), the prebake device adopts one group of heat pipe 16 (also can be many group heat pipes) before the mill in the present embodiment, one group of heat pipe 16 comprises many hollow heat pipe 16-1, every hollow heat pipe 16-1 all runs through the bulkhead 3-1 of feed bin 3 and is horizontally disposed with, hot blast enters from the end of hollow heat pipe 16-1, behind hollow heat pipe 16-1, discharge from the other end, the hollow heat pipe 16-1 of each root connection that is connected in parallel to each other, the hot blast of hot air source enters in the hollow heat pipe 16-1 of each root hollow heat pipe heating, warmed-up hollow heat pipe 16-1 contacts with material and carries out heat exchange with the oven dry material, because material does not directly contact with hot blast, hot blast after the heat exchange can directly enter atmosphere, saved dust arrester installation, feed bin 3 also need not to be provided with top, storehouse 3-3 simultaneously.Certainly, the hot blast after the heat exchange also can collect and carry out UTILIZATION OF VESIDUAL HEAT IN, is used for the secondary drying material in the oven dry storehouse of perhaps that the introducing of the hot blast after the heat exchange is drying tube mill 8.No matter be not limited to the mode that the parallel connection in the present embodiment is communicated with between the hollow heat pipe 16-1 of each root, as long as guarantee that every hollow heat pipe all can be connected with hot air source, be directly to be communicated with or to pass through other hollow heat pipes etc.
Heat pipe 16-1 is not limited to can be provided with arbitrarily as being horizontally disposed with in the present embodiment, contacts with material as long as can run through feed bin.In the present embodiment, running through being horizontally disposed with of bulkhead, is in order to prevent to stop up material.
As shown in figure 10, the cross section of hollow heat pipe 16-1 is oval, and hollow heat pipe 16-1 when being provided with the major axis of its oval cross section to be parallel to or near the following direction of flow that is parallel to material.As Figure 10, the major axis of oval cross section vertically is provided with, and the benefit of doing like this is, material has increased the contact area of itself and hollow heat pipe 16-1 in descending process, improved heat exchanger effectiveness, is beneficial to the oven dry material.
The difference of present embodiment and embodiment 1 is, the prebake device adopts one group of heating rod 17 (also can be many group heating rods) before the mill in the present embodiment, see Figure 11, one group of heating rod 17 comprises many horizontally disposed heating rod 17-1, and every heating rod 17-1 all runs through the bulkhead 3-1 setting of feed bin 3.Because present embodiment need not hot air source, therefore, need not to set up second dust arrester installation or feed bin is connected with dust arrester installation, feed bin also need not to be provided with the storehouse and has pushed up 3-3 simultaneously.
With embodiment 2, heating rod 17-1 is not limited to can be provided with arbitrarily as being horizontally disposed with in the present embodiment, as long as can contact with material.In the present embodiment, running through being horizontally disposed with of bulkhead 3-1, is in order to prevent to stop up material.
Preferably, the cross section of heating rod 17-1 adopts oval, and the major axis of its oval cross section will be parallel to or the approaching following direction of flow that is parallel to material when heating rod 17-1 was provided with.As Figure 12: the major axis of oval cross section vertically is provided with, and the benefit of doing like this is, material has increased the contact area of itself and heating rod 17-1 in descending process, improved heat exchanger effectiveness, is beneficial to the oven dry material.
Claims (28)
1. material grinding system, comprise the feed bin, grinding machine, thickness powder separator and the dust arrester installation that link to each other successively, described thickness powder separator also is connected with the feeding end of described grinding machine or with described feed bin, described feed bin comprises at the bottom of bulkhead and the storehouse, it is characterized in that, on the described feed bin and/or the blanking channel between described feed bin and the described grinding machine be provided with prebake device before the mill that is used to dry material.
2. a kind of material grinding system according to claim 1, it is characterized in that, the prebake device is included in the hot blast generator that is provided with on the described feed bin before the described mill, described hot blast generator comprises one or more groups gas transfer pipeline, the inside of wherein respectively organizing described gas transfer pipeline is connected, and comprise at least on every group of described gas transfer pipeline that an air inlet is used for being connected with the external heat wind regime, be provided with one or more exhaust outlets on every group of described gas transfer pipeline, described exhaust outlet is positioned at described feed bin inside.
3. a kind of material grinding system according to claim 2, it is characterized in that, one group of described gas transfer pipeline wherein comprises an air inlet pipe and one or more blast pipe that is connected with described air inlet pipe respectively, offer described air inlet on the described air inlet pipe, described one or more blast pipe is for being positioned at described feed bin and vertically disposed one or more straight tube, all offer one or more exhaust outlets on the described every straight tube, described exhaust outlet is towards horizontal direction or towards tiltedly direction setting down; And/or,
One group of described gas transfer pipeline wherein comprises an air inlet pipe and one or more blast pipe that is connected with described air inlet pipe respectively, offer described air inlet on the described air inlet pipe, described one or more blast pipe is for being positioned at described feed bin and horizontally disposed one or more ring pipe, all offer one or more exhaust outlets on the described every ring pipe, described exhaust outlet is provided with towards horizontal direction or towards oblique direction down or towards the below.
4. according to the described a kind of material grinding system of one of claim 1 to 3, it is characterized in that, the prebake device comprises hot blast air compartment device before the described mill, described hot blast air compartment device comprises by at the bottom of not leaking the material ventilating board storehouse of making, the airtight air compartment that surrounds around at the bottom of described storehouse, described air compartment is connected with the external heat wind regime; And/or described hot blast air compartment device comprises the bulkhead or the part bulkhead of expecting that by not leaking ventilating board is made, the airtight air compartment that around described bulkhead or part bulkhead, surrounds, and described air compartment is connected with the external heat wind regime; And/or described hot blast air compartment device comprises the blanking channel or the part blanking channel of expecting that by not leaking ventilating board surrounds, the airtight air compartment that around described blanking channel or part blanking channel, surrounds, and described air compartment is connected with the external heat wind regime; Or described hot blast air compartment device comprises by at the bottom of not leaking material the ventilating board bulkhead and storehouse made, the airtight air compartment that surrounds around at the bottom of described bulkhead and storehouse, and described air compartment is connected with the external heat wind regime; Or, described hot blast air compartment device comprises by not leaking at the bottom of the material ventilating board storehouse of making and the part bulkhead, the airtight air compartment that at the bottom of described storehouse and around the part bulkhead, surrounds, described air compartment is connected with the external heat wind regime, and described part bulkhead is near the part bulkhead at the bottom of the storehouse.
5. a kind of material grinding system according to claim 1, it is characterized in that, the prebake device is included in one or more groups heat pipe that is provided with on the feed bin before the described mill, described every group of heat pipe comprises one or more hollow heat pipe, described hollow heat pipe is connected with the external heat wind regime, and the main body of described at least hollow heat pipe is positioned at described feed bin inside; And/or,
The prebake device is included in one or more groups heating rod that is provided with on the feed bin before the described mill, and the main body of described at least every group of heating rod is positioned at described feed bin inside.
6. a kind of material grinding system according to claim 5 is characterized in that, described hollow heat pipe runs through described bulkhead and is horizontally disposed with, and/or described heating rod runs through described bulkhead and is horizontally disposed with.
7. according to claim 5 or 6 described a kind of material grinding systems, it is characterized in that the cross section of described hollow heat pipe and/or described heating rod is oval, described oval-shaped major axis is provided with along the Flow of Goods and Materials direction.
8. according to claim 2 or 3 described a kind of material grinding systems, it is characterized in that described feed bin also includes Cang Ding, described dust arrester installation is connected with described feed bin by described Cang Ding; Or,
Described feed bin also includes Cang Ding, and described material grinding system also includes second dust arrester installation, and described second dust arrester installation is connected with described feed bin by described Cang Ding.
9. a kind of material grinding system according to claim 4 is characterized in that described feed bin also includes Cang Ding, and described dust arrester installation is connected with described feed bin by described Cang Ding; Or,
Described feed bin also includes Cang Ding, and described material grinding system also includes second dust arrester installation, and described second dust arrester installation is connected with described feed bin by described Cang Ding.
10. a kind of material grinding system according to claim 4 is characterized in that, sets out the air port on the air compartment that is positioned at around blanking channel or the part blanking channel, and described air outlet is connected with described dust arrester installation; Or, on the air compartment that is positioned at around blanking channel or the part blanking channel, setting out the air port, described material grinding system also includes second dust arrester installation, and described air outlet is connected with described second dust arrester installation.
11. according to claim 1 or 2 or 3 or 5 or 6 described a kind of material grinding systems, it is characterized in that described grinding machine is a tube mill or many tube mills that are in series or the vertical mill that is in series and tube mill or the disintegrating machine that is in series and tube mill or roll squeezer that is in series and tube mill.
12. a kind of material grinding system according to claim 4, it is characterized in that described grinding machine is a tube mill or many tube mills that are in series or the vertical mill that is in series and tube mill or the disintegrating machine that is in series and tube mill or roll squeezer that is in series and tube mill.
13. a kind of material grinding system according to claim 7, it is characterized in that described grinding machine is a tube mill or many tube mills that are in series or the vertical mill that is in series and tube mill or the disintegrating machine that is in series and tube mill or roll squeezer that is in series and tube mill.
14. a kind of material grinding system according to claim 8, it is characterized in that described grinding machine is a tube mill or many tube mills that are in series or the vertical mill that is in series and tube mill or the disintegrating machine that is in series and tube mill or roll squeezer that is in series and tube mill.
15. a kind of material grinding system according to claim 9, it is characterized in that described grinding machine is a tube mill or many tube mills that are in series or the vertical mill that is in series and tube mill or the disintegrating machine that is in series and tube mill or roll squeezer that is in series and tube mill.
16. a kind of material grinding system according to claim 10, it is characterized in that described grinding machine is a tube mill or many tube mills that are in series or the vertical mill that is in series and tube mill or the disintegrating machine that is in series and tube mill or roll squeezer that is in series and tube mill.
17. according to claim 1 or 2 or 3 or 5 or 6 described a kind of material grinding systems, it is characterized in that described material grinding system also includes metering feeding device, described metering feeding device is between feed bin and grinding machine.
18. a kind of material grinding system according to claim 4 is characterized in that described material grinding system also includes metering feeding device, described metering feeding device is between feed bin and grinding machine.
19. a kind of material grinding system according to claim 7 is characterized in that described material grinding system also includes metering feeding device, described metering feeding device is between feed bin and grinding machine.
20. a kind of material grinding system according to claim 8 is characterized in that described material grinding system also includes metering feeding device, described metering feeding device is between feed bin and grinding machine.
21. a kind of material grinding system according to claim 9 is characterized in that described material grinding system also includes metering feeding device, described metering feeding device is between feed bin and grinding machine.
22. a kind of material grinding system according to claim 10 is characterized in that described material grinding system also includes metering feeding device, described metering feeding device is between feed bin and grinding machine.
23. a kind of material grinding system according to claim 11 is characterized in that described material grinding system also includes metering feeding device, described metering feeding device is between feed bin and grinding machine.
24. a kind of material grinding system according to claim 12 is characterized in that described material grinding system also includes metering feeding device, described metering feeding device is between feed bin and grinding machine.
25. a kind of material grinding system according to claim 13 is characterized in that described material grinding system also includes metering feeding device, described metering feeding device is between feed bin and grinding machine.
26. a kind of material grinding system according to claim 14 is characterized in that described material grinding system also includes metering feeding device, described metering feeding device is between feed bin and grinding machine.
27. a kind of material grinding system according to claim 15 is characterized in that described material grinding system also includes metering feeding device, described metering feeding device is between feed bin and grinding machine.
28. a kind of material grinding system according to claim 16 is characterized in that described material grinding system also includes metering feeding device, described metering feeding device is between feed bin and grinding machine.
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| CN2010206653719U CN202078952U (en) | 2010-12-17 | 2010-12-17 | Material grinding system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2010206653719U CN202078952U (en) | 2010-12-17 | 2010-12-17 | Material grinding system |
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| CN202078952U true CN202078952U (en) | 2011-12-21 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102872963A (en) * | 2012-10-25 | 2013-01-16 | 南通新邦化工科技有限公司 | Flaky and lump stearate grinding process and equipment |
| CN105032583A (en) * | 2015-08-28 | 2015-11-11 | 长沙深湘通用机器有限公司 | Coarse grain sorting method based on gas sorting machines and crusher |
| CN106076575A (en) * | 2016-07-01 | 2016-11-09 | 江苏融达新材料股份有限公司 | A kind of production method of superfine steel slag micropowder |
| CN106076576A (en) * | 2016-07-01 | 2016-11-09 | 江苏融达新材料股份有限公司 | A kind of production method of ultra-fine lithium slag micropowder |
| CN109382184A (en) * | 2018-11-09 | 2019-02-26 | 长沙万荣粉体设备科技有限公司 | A kind of powder dispersing apparatus and method |
-
2010
- 2010-12-17 CN CN2010206653719U patent/CN202078952U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102872963A (en) * | 2012-10-25 | 2013-01-16 | 南通新邦化工科技有限公司 | Flaky and lump stearate grinding process and equipment |
| CN105032583A (en) * | 2015-08-28 | 2015-11-11 | 长沙深湘通用机器有限公司 | Coarse grain sorting method based on gas sorting machines and crusher |
| CN106076575A (en) * | 2016-07-01 | 2016-11-09 | 江苏融达新材料股份有限公司 | A kind of production method of superfine steel slag micropowder |
| CN106076576A (en) * | 2016-07-01 | 2016-11-09 | 江苏融达新材料股份有限公司 | A kind of production method of ultra-fine lithium slag micropowder |
| CN109382184A (en) * | 2018-11-09 | 2019-02-26 | 长沙万荣粉体设备科技有限公司 | A kind of powder dispersing apparatus and method |
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