CN203874876U - Low-temperature crushing system - Google Patents

Low-temperature crushing system Download PDF

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Publication number
CN203874876U
CN203874876U CN201420310726.0U CN201420310726U CN203874876U CN 203874876 U CN203874876 U CN 203874876U CN 201420310726 U CN201420310726 U CN 201420310726U CN 203874876 U CN203874876 U CN 203874876U
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CN
China
Prior art keywords
liquid nitrogen
separator
low
pulverizer
grinding system
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN201420310726.0U
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Chinese (zh)
Inventor
刘松友
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BEIJING GUOHAO CHEMICAL MACHINERY Co Ltd
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BEIJING GUOHAO CHEMICAL MACHINERY Co Ltd
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Priority to CN201420310726.0U priority Critical patent/CN203874876U/en
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Publication of CN203874876U publication Critical patent/CN203874876U/en
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Abstract

The utility model relates to the technical field of crushing equipment, and particularly relates to a low-temperature crushing system. The low-temperature crushing system comprises a stock bin, a feeder, a crusher and a liquid nitrogen storage tank, wherein the stock bin is connected with the crusher through the feeder, and the crusher is connected with the liquid nitrogen storage tank. The low-temperature crushing system further comprises an induced draft fan, a separator, an air return pipeline and a discharger, wherein the crusher is used for sucking materials into the separator through the induced draft fan, one end of the separator is connected with the discharger, the other end of the separator is connected with the air return pipeline used for conveying cold air, and the air return pipeline is connected with the stock bin for circularly cooling the stock bin. The low-temperature crushing system has the advantages of being capable of reducing liquid nitrogen consumption, facilitating the discharging, effectively increasing the work efficiency and being high in automation degree when being used for crushing a heat sensitive material.

Description

A kind of low-temperature grinding system
Technical field
The utility model relates to disintegrating apparatus technical field, relates in particular to a kind of for pulverizing the low-temperature grinding system of heat sensitive material.
Background technology
At present, pulverizer is in the time pulverizing heat sensitive material, and the heat producing in its crushing process can make pulverizing chamber temperature rise, thereby the meltable soft junction piece of heat sensitive material, destroys its active material, cause pulverizer crushing process energy consumption high and yield poorly, meanwhile, the crushing effect of heat sensitive material is also not ideal enough.
In prior art, have a kind of Lowtemperaturepulverizer, its structure comprises hopper, propeller, pulverizing chamber, and angle of rake charging aperture is connected with the discharging opening of hopper, and angle of rake discharging opening is connected with the charging aperture of pulverizing chamber; On the barrel of pulverizing chamber, be provided with liquid nitrogen shower nozzle, liquid nitrogen generation device is connected with liquid nitrogen shower nozzle by liquid nitrogen control valve.Although this Lowtemperaturepulverizer can complete crushing process under low temperature environment,, in operating process, liquid nitrogen consumption is high, and the liquid nitrogen leak case in production scene is serious, and its energy resource consumption is quite serious; In addition, the inefficiency of this Lowtemperaturepulverizer, automaticity is low, and structure is single.
Therefore, for above deficiency, need one in the time pulverizing heat sensitive material, can reduce the low-temperature grinding system that liquid nitrogen consumption, discharging conveniently, are effectively increased work efficiency and automaticity is high.
Utility model content
(1) technical problem that will solve
The technical problems to be solved in the utility model has been to provide a kind of low-temperature grinding system, makes pulverizing when heat sensitive material, can reduce liquid nitrogen consumption, discharging convenient, effectively increase work efficiency and automaticity high.
(2) technical scheme
In order to solve the problems of the technologies described above, a kind of low-temperature grinding system that the utility model provides comprises feed bin, feeder, pulverizer and liquid nitrogen storage tank, described feed bin is connected with pulverizer by feeder, described pulverizer is connected with liquid nitrogen storage tank, this low-temperature grinding system also comprises air-introduced machine, separator, return air duct and discharger, described pulverizer is pumped to material in separator by air-introduced machine, one end of described separator is connected with discharger, the other end is connected with the return air duct for delivery of cold wind, described return air duct is connected with feed bin, for feed bin described in circulating cooling.
Wherein, also comprise the cooling chamber that adopts insulation material to make, described pulverizer is positioned at described cooling chamber, and is connected with separator by tapping channel, and described air-introduced machine is arranged on tapping channel, for material is pumped in separator by described tapping channel.
Wherein, in described cooling chamber, deduster is installed, the dust producing for removing described pulverizer.
Wherein, described liquid nitrogen storage tank is connected with the pulverizing chamber of described pulverizer by multiple liquid nitrogen shower nozzles.
Wherein, the liquid nitrogen control device for controlling described liquid nitrogen shower nozzle is installed on described liquid nitrogen storage tank.
Wherein, described liquid nitrogen control device comprises control valve, temperature sensor and control module, described control valve is between described liquid nitrogen storage tank and liquid nitrogen shower nozzle, described temperature sensor is positioned at described pulverizing chamber and is electrically connected with described control module, described control module is by the temperature in pulverizing chamber described in temperature sensor monitors, and controls described control valve.
Wherein, the discharge bucket of described separator bottom is connected with discharger, and the exhaust outlet at described separator top is connected with return air duct.
Wherein, described discharger will be for being delivered in storage bin from the isolated finished product material of separator.
Wherein, described discharger is conveying worm, and described separator is cyclone separator.
Wherein, the circulating pipe that described return air duct comprises gas discharge pipe, is connected with feed bin, is equipped with the valve that dams on described delivery pipe and circulating pipe.
(3) beneficial effect
Technique scheme of the present utility model has following beneficial effect: the feed bin of the utility model low-temperature grinding system is connected with pulverizer by feeder, wherein pulverizer is connected with liquid nitrogen storage tank, thereby utilizes liquid nitrogen vaporization cool principle to provide low temperature environment for pulverizing; Pulverizer is pumped to material in separator by air-introduced machine, and one end of separator is connected with discharger, and the finished product material that utilizes discharger to separate separator is carried, the high and easy-unloading of automaticity; And the other end of pulverizer is connected with the return air duct for delivery of cold wind, return air duct is connected with feed bin, for circulating cooling feed bin, realizes recycling of cold wind by return air duct, effectively reduces liquid nitrogen consumption, increases work efficiency.
Brief description of the drawings
Fig. 1 is the structural representation of the utility model embodiment low-temperature grinding system.
Wherein, 1: feed bin; 2: feeder; 3: pulverizer; 4: liquid nitrogen storage tank; 5: air-introduced machine; 6: separator; 7: return air duct; 8: discharger; 31: tapping channel; 41: liquid nitrogen control device.
Detailed description of the invention
Below in conjunction with drawings and Examples, embodiment of the present utility model is described in further detail.Following examples are used for illustrating the utility model, but can not be used for limiting scope of the present utility model.
In description of the present utility model, except as otherwise noted, the implication of " multiple " is two or more; Term " on ", orientation or the position relationship of the instruction such as D score, " left side ", " right side ", " interior ", " outward ", " front end ", " rear end ", " head ", " afterbody " be based on orientation shown in the drawings or position relationship, only the utility model and simplified characterization for convenience of description, instead of indicate or imply that the device of indication or element must have specific orientation, construct and operation with specific orientation, therefore can not be interpreted as restriction of the present utility model.In addition, term " first ", " second ", " the 3rd " etc. are only for describing object, and can not be interpreted as instruction or hint relative importance.
In description of the present utility model, it should be noted that, unless otherwise clearly defined and limited, term " is connected ", " connection " should be interpreted broadly, and for example, can be to be fixedly connected with, and can be also to removably connect, or connects integratedly; Can be mechanical connection, can be also electrical connection; Can be to be directly connected, also can indirectly be connected by intermediary.For the ordinary skill in the art, can concrete condition understand the concrete meaning of above-mentioned term in the utility model.
As shown in Figure 1, a kind of low-temperature grinding system that the present embodiment provides comprises feed bin 1, feeder 2, pulverizer 3 and liquid nitrogen storage tank 4, feed bin 1 is connected with pulverizer 3 by feeder 2, pulverizer 3 is connected with liquid nitrogen storage tank 4, this low-temperature grinding system also comprises air-introduced machine 5, separator 6, return air duct 7 and discharger 8, pulverizer 3 is pumped to material in separator 6 by air-introduced machine 5, one end of separator 6 is connected with discharger 8, the other end is connected with the return air duct 7 for delivery of cold wind, return air duct 7 is connected with feed bin 1, for circulating cooling feed bin 1.
This low-temperature grinding system also comprises the cooling chamber that adopts insulation material to make, pulverizer 3 is positioned at cooling chamber, ensure pulverizer 3 environment in low temperature in crushing process, and pulverizer 3 is connected with separator 6 by tapping channel 31, air-introduced machine 5 is arranged on tapping channel 31, and between separator 6 and pulverizer 3, drive to realize the material particles of suction pulverizer 3 interior pulverizing by id-motor, these material particles are pumped in separator 6 by tapping channel 31.In operation, can suitably adjust according to pulverizing speed the frequency conversion speed of air-introduced machine 5.
Pulverizer 3 to realize the reamer rotation of pulverizer 3, carries out pulverization process thereby realize to material by main driven by motor power transmission shaft group.Discharging opening place at pulverizer 3 is provided with screening plant, by screening plant, coarse material is stayed to the interior continuation of pulverizer 3 and pulverizes, until meet standard.
And liquid nitrogen storage tank 4 is connected with the pulverizing chamber of pulverizer 3 by multiple liquid nitrogen shower nozzles, liquid nitrogen is injected in pulverizing chamber by multiple liquid nitrogen shower nozzles, can make full use of liquid nitrogen vaporization to realize cooling effect, and good cooling effect reduces the consumption of liquid nitrogen.
Simultaneously, for convenient control exported liquid nitrogen, avoid the waste of liquid nitrogen, liquid nitrogen control device 41 for controlling liquid nitrogen shower nozzle is installed on liquid nitrogen storage tank 4, liquid nitrogen control device 41 wherein comprises control valve, temperature sensor and control module, control valve is on the pipeline between liquid nitrogen storage tank 4 and liquid nitrogen shower nozzle, for liquid nitrogen is played to metering function.
Temperature sensor is positioned at pulverizing chamber and is electrically connected with control module, temperature sensor is for detection of the variations in temperature in pulverizing chamber, and detection signal is sent in control module, control module place identifies and receives detection signal, and according to detection signal automatically to control the keying of control valve.
When the temperature in pulverizing chamber is during higher than predetermined value (subzero 70 DEG C-80 DEG C), opening controlling valve to be to input liquid nitrogen in pulverizing chamber, and when the temperature in pulverizing chamber is during lower than predetermined value, closed control valve is to stop inputting liquid nitrogen in pulverizing chamber.
Further, the discharge bucket of separator 6 bottoms is connected with discharger 8, and the exhaust outlet at separator 6 tops is connected with return air duct 7.
Preferably, separator 6 is cyclone separator, when material particles is sucked up to by tapping channel 31 after the cyclone tube of separator 6, material particles air-flow is subject to the guide functions of guide vane and produces strong rotation, enter twist Whirlwind barrel downwards along cylindrical shell, the material particles that quality is large is thrown toward wall under centrifugal action, and under Action of Gravity Field, fall to the discharge bucket of device bottom along barrel, the cold wind of rotation shrinks to center flow in cylindrical shell, upwards forms secondary vortex flow and flow to return air duct 7 through the exhaust outlet of upper end.
The finished product material that separator 6 is separated is realized and being carried by discharger 8, wherein, discharger 8 is preferably conveying worm, rotate by discharging driven by motor helical axis, thereby make finished product material axial passing along conveyer under the propelling movement of blade, rely on the thrust of go-ahead finished product material below to push to realize.
In addition,, because the finished product material of directly producing need at room temperature carry out static drying, in order to improve the speed of drying, handled easily is connected with the storage bin for drying finished product material on discharger 8.After drying, the finished product material in storage bin carries out packing.
In order to reduce the waste of liquid nitrogen, the cold wind that separator 6 is separated recycles, the circulating pipe that return air duct 7 comprises gas discharge pipe, is connected with feed bin 1, the exhaust outlet at separator 6 tops is communicated with circulating pipe with delivery pipe by main pipeline, and is equipped with the valve that dams on delivery pipe and circulating pipe.By recycling of valve control cold wind, after finishing, production cold wind can be discharged from delivery pipe, for the purpose of environmental protection, also can be connected with gas cleaning plant at delivery pipe place simultaneously.
In addition, deduster is installed in cooling chamber, the dust producing for removing pulverizer 3, reduces dust pollution; Meanwhile, in cooling chamber, refrigeration plant can also be installed, can be used as the compensation of liquid nitrogen cooling.
Preferably, the main motor of pulverizer 3 adopts 55KW, and the motor of feeder 2 adopts 0.75KW, and the motor of air-introduced machine 5 adopts 7.5KW, and the motor of discharger 8 adopts 3KW.
The feed bin of the utility model low-temperature grinding system is connected with pulverizer by feeder, and wherein pulverizer is connected with liquid nitrogen storage tank, thereby utilizes liquid nitrogen vaporization cool principle to provide low temperature environment for pulverizing; Pulverizer is pumped to material in separator by air-introduced machine, and one end of separator is connected with discharger, and the finished product material that utilizes discharger to separate separator is carried, the high and easy-unloading of automaticity; And the other end of pulverizer is connected with the return air duct for delivery of cold wind, return air duct is connected with feed bin, for circulating cooling feed bin, realizes recycling of cold wind by return air duct, effectively reduces liquid nitrogen consumption, increases work efficiency.
Embodiment of the present utility model provides for example with for the purpose of describing, and is not exhaustively or by the utility model to be limited to disclosed form.Many modifications and variations are apparent for the ordinary skill in the art.Selecting and describing embodiment is for better explanation principle of the present utility model and practical application, thereby and makes those of ordinary skill in the art can understand the utility model design to be suitable for the various embodiment with various amendments of special-purpose.

Claims (10)

1. a low-temperature grinding system, comprise feed bin (1), feeder (2), pulverizer (3) and liquid nitrogen storage tank (4), described feed bin (1) is connected with pulverizer (3) by feeder (2), described pulverizer (3) is connected with liquid nitrogen storage tank (4), it is characterized in that, also comprise air-introduced machine (5), separator (6), return air duct (7) and discharger (8), described pulverizer (3) is pumped to material in separator (6) by air-introduced machine (5), one end of described separator (6) is connected with discharger (8), the other end is connected with the return air duct (7) for delivery of cold wind, described return air duct (7) is connected with feed bin (1), for feed bin (1) described in circulating cooling.
2. low-temperature grinding system according to claim 1, it is characterized in that, also comprise the cooling chamber of being made by insulation material, described pulverizer (3) is positioned at described cooling chamber, and be connected with separator (6) by tapping channel (31), it is upper that described air-introduced machine (5) is arranged on tapping channel (31), for material is pumped in separator (6) by described tapping channel (31).
3. low-temperature grinding system according to claim 2, is characterized in that, in described cooling chamber, deduster is installed, the dust producing for removing described pulverizer (3).
4. low-temperature grinding system according to claim 2, is characterized in that, described liquid nitrogen storage tank (4) is connected with the pulverizing chamber of described pulverizer (3) by multiple liquid nitrogen shower nozzles.
5. low-temperature grinding system according to claim 4, is characterized in that, the liquid nitrogen control device (41) for controlling described liquid nitrogen shower nozzle is installed on described liquid nitrogen storage tank (4).
6. low-temperature grinding system according to claim 5, it is characterized in that, described liquid nitrogen control device (41) comprises control valve, temperature sensor and control module, described control valve is positioned between described liquid nitrogen storage tank (4) and liquid nitrogen shower nozzle, described temperature sensor is positioned at described pulverizing chamber and is electrically connected with described control module, described control module is by the temperature in pulverizing chamber described in temperature sensor monitors, to control described control valve.
7. according to the low-temperature grinding system described in any one in claim 1-6, it is characterized in that, the discharge bucket of described separator (6) bottom is connected with discharger (8), and the exhaust outlet at described separator (6) top is connected with return air duct (7).
8. low-temperature grinding system according to claim 7, is characterized in that, described discharger (8) will be for being delivered in storage bin from the isolated finished product material of separator (6).
9. low-temperature grinding system according to claim 8, is characterized in that, described discharger (8) is conveying worm, and described separator (6) is cyclone separator.
10. low-temperature grinding system according to claim 1, is characterized in that, described return air duct (7) comprise gas discharge pipe, with the circulating pipe that feed bin (1) is connected, on described delivery pipe and circulating pipe, be equipped with the valve that dams.
CN201420310726.0U 2014-06-11 2014-06-11 Low-temperature crushing system Expired - Fee Related CN203874876U (en)

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103427819A (en) * 2013-07-31 2013-12-04 南昌欧菲光科技有限公司 Touch press-key device
CN104938970A (en) * 2015-06-01 2015-09-30 刘佩玲 Automatic cooking apparatus of mung bean paste
CN104938971A (en) * 2015-06-01 2015-09-30 刘佩玲 Novel mung bean paste automatic cooking device
CN107029840A (en) * 2017-03-16 2017-08-11 广州合成材料研究院有限公司 A kind of method of laboratory Freezing smashing
CN112024107A (en) * 2020-08-03 2020-12-04 内蒙古双欣环保材料股份有限公司 Low-temperature crushing system and low-temperature crushing process

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103427819A (en) * 2013-07-31 2013-12-04 南昌欧菲光科技有限公司 Touch press-key device
CN104938970A (en) * 2015-06-01 2015-09-30 刘佩玲 Automatic cooking apparatus of mung bean paste
CN104938971A (en) * 2015-06-01 2015-09-30 刘佩玲 Novel mung bean paste automatic cooking device
CN104938971B (en) * 2015-06-01 2018-06-22 睢宁景舜农业发展有限公司 A kind of green bean paste automatic cooker
CN104938970B (en) * 2015-06-01 2018-07-13 曹文东 A kind of green bean paste automatic cooker
CN107029840A (en) * 2017-03-16 2017-08-11 广州合成材料研究院有限公司 A kind of method of laboratory Freezing smashing
CN112024107A (en) * 2020-08-03 2020-12-04 内蒙古双欣环保材料股份有限公司 Low-temperature crushing system and low-temperature crushing process

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CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20141015

Termination date: 20150611

EXPY Termination of patent right or utility model