CN103240677A - Method for preventing grinding spark ignition of shredding cutter and equipment applying method - Google Patents
Method for preventing grinding spark ignition of shredding cutter and equipment applying method Download PDFInfo
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- CN103240677A CN103240677A CN2013101309840A CN201310130984A CN103240677A CN 103240677 A CN103240677 A CN 103240677A CN 2013101309840 A CN2013101309840 A CN 2013101309840A CN 201310130984 A CN201310130984 A CN 201310130984A CN 103240677 A CN103240677 A CN 103240677A
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Abstract
A method for preventing grinding spark ignition of a shredding cutter includes: adding flame-retardant gas at the temperature lower than 20 DEG C into a closed grinding wheel operation space and a grinding cutter, and ceaselessly sucking dust and gas from the closed grinding wheel operation space, wherein gas consumption of the flame-retardant gas is volumetric gas consumption qV=GRT<0>/p<0>, mass gas consumption G=V<1>np<1>/(RT<1>), and at a dust suction port, gas flow qx=(1.5-2)qV. The flame-retardant gas is sprayed to a blade contact position of the grinding wheel and a cutter roll from the lower side of a grinding wheel operating port, and capacity of an inner cavity of a casing is larger than volume of the grinding wheel. The method for preventing grinding spark ignition of the shredding cutter is reasonable in design, simple in structure, convenience in implementing and good in flame-retardant effect, quality of tobacco shreds is unaffected, and production safety of the tobacco shreds is guaranteed. Meanwhile, the flame-retardant gas is filled in an operating cavity, pipelines and a dust collector and finally discharged to the atmosphere through the dust collector, and adverse affection of harms on humans due to gas accumulation in the working environment is avoided.
Description
Technical field
The present invention relates to the shredding knife sharpening system of tobacco hob type filament cutter, specifically is a kind of method and equipment thereof that prevents that the shredding knife grinding sparks from igniting.
Background technology
Tobacco hob type filament cutter, in the chopping process, the rotor that blade is installed rotates the cutting of finishing material at a high speed; In order to guarantee the chopping quality, blade must remain sharp, and influencing the sharp principal element of blade has two, and the one, the cutting edge strength of blade is poor, the damaged rust of the most advanced and sophisticated position meeting of blade in cutting material process; The 2nd, in tobacco leaf, offal chopping process, have some inherent liquid object and overflow, contain tobacco tar in the liquid object, the dust that chopping produces and tobacco tar viscous reduce the sharpness of blade on blade.Therefore, grinding blade at any time in cutting pipe tobacco process, i.e. the continuous feeding of the diffusion knife of installing on the rotor, blade grinder constantly moves back and forth the grinding blade simultaneously, to keep the sharp of cutting edge.
In the process of wheel grinding blade, the external circe speed of emery wheel will reach more than the 25m/s usually, could produce reasonable ground effect.At normal temperatures, during the wheel grinding blade of high speed rotation, because the effect of frictional heat can produce a large amount of grinding sparks.The shredding knife knife sharpener of traditional filament cutter is to not supression effect of grinding sparks; Emery wheel is to make high-speed rotation in the working chamber of a relative closure, has two outlets at working chamber, and one is suction port, and the dust that the grinding blade is produced, abrasive dust etc. are taken away; Another opening is the emery wheel working hole, and the emery wheel of rotation is protruding, the grinding blade.Suction port is when taking dust away, grinding sparks can be taken away simultaneously, be entered dust sucting pipeline and deduster, the rotor that small part is rotated is at a high speed brought in the handpiece body, grinding sparks is not in time being cooled off and is being touched air, running into dry dust or pipe tobacco will light it, and in a single day dust or pipe tobacco are lighted, if untimely putting out, just may enlarge firing range, form bigger burning, form fire alarm, even cause disaster.
Tobacco leaf is responsive to the relative humidity of air, and tobacco leaf is the material that belongs to colloid capillary porous.Its tissue includes crystalline solids such as pectin, cellulose, protein isocolloid material and water-soluble sugar, organic acid, salt as porous colloid cavernous body.Because the effect of these materials makes tobacco leaf very responsive to moisture, namely tobacco leaf has very sensitive hygroscopicity and wet putting.When drying tobacco was dewatered, it promptly absorbed moisture from air; When tobacco leaf water content during greater than air humidity, the former moisture that contains of tobacco leaf becomes dry the tobacco leaf dehydration just to the air diffusion.In other words, the tobacco leaf water content is easy to be subjected to the influence of extraneous weather conditions.Outside air relative humidity is big, and then the tobacco leaf water content is big, otherwise then little.The tobacco leaf water content is little in the throwing process, then causes brokenly easily, and dust is big; The tobacco leaf water content is excessive, and tobacco leaf viscosity increases, and silk production rate is low, and dust is few.Throwing workshop condition temperature height or ambient humidity are little, all may make drying tobacco, and tobacco leaf causes brokenly in filament cutter during chopping easily, and dust is big, and the possibility of spontaneous combustion just increases.
Summary of the invention
The objective of the invention is to overcome the harm of existing filament cutter possible spontaneous combustion when chopping, a kind of method that the shredding knife grinding sparks is ignited and technical scheme of equipment thereof of preventing proposed, this technical scheme is used the gas flame-retarded technology, intercept the generation of spark, make the abrasive dust that produces of whetting a knife lose flammable condition, simultaneously, completely cutting off down at fire-retardant gas in the working chamber, cause the spark that enters in the working chamber, also lose the condition of burning, destroy the condition of spark ignition dust or pipe tobacco, stopped the possibility that spark ignition dust in the chopping process or pipe tobacco cause spontaneous combustion fully.
Technical scheme of the present invention is: a kind of method that prevents that the shredding knife grinding sparks from igniting is characterized in that concrete steps are as follows:
(1) add fire-retardant gas at emery wheel working space, the sharpening position of sealing, fire-retardant gas temperature is lower than 20 ℃, and fire-retardant gas air consumption is:
-------gas constant, R=287.1 (N m/kg in the formula: R
K)
T
0--------environment absolute temperature is got 293(
K)
p
0--------atmospheric pressure (Pa)
V
1--------admission space (m
3)
N--------ventilation frequency (1/min)
p
1--------admission pressure (Pa)
T
1--------air inlet absolute temperature is got T1=(273+t
1)=283 (
K)
T
1-------intake air temperature is got t
1=10 ℃
V
2--------dischargeable capacity (m
3)
T
2--------exhaust absolute temperature, T2=273(
K)
K--------adiabatic exponent, k=1.4
D--------cavity diameter (mm)
H--------cavity thickness (mm)
T--------inflationtime (s)
τ-------time constant (s)
Ps--------source of the gas absolute pressure (Pa);
(2) the emery wheel working space in sealing uninterruptedly aspirates dust and gas continuously, and the gas flow qx at suction port place is the volume air consumption q of fire-retardant gas
VMultiply by coefficient 1.5-2, qx
=(1.5-2) q
V
(3) nozzle is located at the below of emery wheel working hole, the blade contact position of nozzle alignment emery wheel and rotor, and fire-retardant gas is sprayed to the blade contact position of emery wheel and rotor by emery wheel working hole below;
(4) volume of housing inner chamber is greater than emery wheel volume at least 1/3.
In dry ice, nitrogen, helium, neon, argon, krypton, xenon, radon and the liquid carbon dioxide that described fire-retardant gas is gaseous state any one.
A kind of equipment that prevents that the shredding knife grinding sparks from igniting, be provided with emery wheel in rotor one side, it is characterized in that, emery wheel is located in the housing of sealing, and the volume of housing inner chamber is greater than emery wheel volume at least 1/3, and housing is provided with the emery wheel working hole with respect to the rotor place, the top of housing is provided with fire-retardant gas access, the below of housing is provided with suction port, is provided with nozzle below the emery wheel working hole, and nozzle is connected with source of the gas by pipeline.
Described nozzle gauge tap and the interlock of emery wheel gauge tap.
Described gas source pipe is provided with temperature controller, becomes in the endothermic process of steam state in liquid state, causes the low excessively air-flow of temperature to obtain heating.
The rotation of described emery wheel is parallel or space crossed with the rotor rotation.
Described emery wheel is disc or truncated cone.
Three conditions of the burning of material: 1, material is necessary for combustible; 2, combustible contacts with oxygen; 3, temperature reaches burning-point.The chopping process of filament cutter can produce the dust that particle diameter is about 10～40 μ m, friction between grinding diffusion knife process medium plain emery wheel and the blade, produce a large amount of heat energy, the grinding diffusion knife produces particle diameter and is about 40 μ m abrasive dusts, abrasive dust is behind contact oxygen, generated grinding sparks, the spark adhesion that contacts with dry dust, spark has enough heats to be heated and to light.The dust quantity of catching fire just has influence on the part seldom the time, may extinguish naturally, and the variations in temperature external world is difficult for discovering; Dangerous fearful is that it is piling up fire burns, causes great harm.Characteristics of the present invention are exactly at the filament cutter actual operating conditions, can't change under " combustibility of material " situation, change latter two burning condition of " inflammable substance ".The condition that dust and broken pipe tobacco spontaneous combustion take place in the process of filament cutter chopping is air drying in the working chamber, temperature is near burning-point, dust and broken tobacco shreds drying and quantity are abundant, the present invention has done a large amount of research and experiment according to these characteristics, in a large amount of fire-retardant gas, filter out good flame retardation effect, can not cause dry ice, nitrogen, helium, neon, argon, krypton, xenon, radon and the liquid carbon dioxide of dysgenic gaseous state to tobacco quality.It is q that the present invention's research and experiment obtain best fire-retardant gas flow calculating formula
V:=GRT
0/ p
0 ,In this formula, take into full account environment temperature and ambient humidity to fire-retardant influence, made gas flow of the present invention can be controlled in the most rational state.Must suck air from the emery wheel working hole when considering to dust suction, according to the size of emery wheel working hole and the factor of air pump power thereof, the gas flow qx at suction port of the present invention place is fire-retardant gas flow q
VMultiply by coefficient 1.5-2, qx
=(1.5-2) q
VFor the gas that makes the nozzle ejection reaches best flame retardant effect, the position of nozzle of the present invention is arranged on the below of emery wheel working hole, nozzle alignment emery wheel and blade contact position, the fire-retardant gas of low temperature is sprayed to the blade contact position of emery wheel and rotor by emery wheel working hole below, reduced the temperature of abrasive dust, the oxygen that has completely cut off emery wheel and blade contact position, the generation of thoroughly having stopped grinding sparks; Fire-retardant gas overflows diffusion from working chamber, enter into the filament cutter knife sharpener, enter into dust sucting pipeline subsequently, reach the space of filling knife sharpener and pipeline thereof, oxygen in the secluding air, reduce the effect of temperature, thoroughly stopped the possibility that abrasive dust spark ignition dust in the chopping process or pipe tobacco cause spontaneous combustion.Structure of the present invention is that emery wheel is located in the housing of sealing, covers the abrasive dust spark fully for guaranteeing fire-retardant gas, and the present invention is designed to the volume of housing inner chamber greater than emery wheel volume 1/3 at least.Nozzle begins to spray fire-retardant gas during for the work of assurance emery wheel, and the present invention is with nozzle gauge tap and the interlock of emery wheel gauge tap.
Beneficial effect of the present invention: 1, when the wheel grinding blade, fire-retardant gas enters the emery wheel working space, is ejected into the position of grinding blade, intercepts air, cools, and restrains the generation of grinding sparks, reaches safety requirements.2, fire-retardant gas is the gas C O that dry ice, inert gas or liquid carbon dioxide produce
2, these goods and materials will volatilize naturally, pipe tobacco are not produced and pollute, and can not influence the quality of pipe tobacco.3, fire-retardant gas is nitrogen N
2, volatilization does not naturally produce pipe tobacco and pollutes, and can not influence the quality of pipe tobacco.4, the used fire-retardant gas of the present invention mostly is inert gas, in use, only needs wherein a kind of, need not mix, and volatilization naturally does not produce pollution to pipe tobacco, can not influence the quality of pipe tobacco.The present invention is reasonable in design, and is simple in structure, easy to use, and good flame retardation effect does not influence tobacco quality, guaranteed the safety that pipe tobacco is produced.Simultaneously, fire-retardant gas is in working chamber, pipeline, deduster, is that deduster is discharged in the atmosphere at last, can not build up because of gas working environment is caused harmful effect to the human injury.
Description of drawings
Fig. 1 is that emery wheel is discoidal structural representation of the present invention
Fig. 2 is that emery wheel is the structural representation of the present invention of taper type
Among the figure: (1) is that rotor, (2) are that fire-retardant gas nozzle, (3) are that suction port, (4) are that emery wheel, (5) are that working chamber, (6) are that fire-retardant gas access, (7) are the emery wheel working holes.
The specific embodiment
A kind of design, making, installation and use thereof that prevents the equipment that the shredding knife grinding sparks is ignited, the concrete data of each embodiment see Table 1, and concrete steps are as follows:
(1) from the dry ice of gaseous state, nitrogen, helium, neon, argon, krypton, xenon, radon, selects needed fire-retardant gas;
Calculate fire-retardant gas actual air consumption;
-------gas constant, R=287.1 (N m/kg in the formula: R
K)
T
0--------environment absolute temperature is got 293(
K)
p
0--------atmospheric pressure (Pa)
V
1--------admission space (m
3)
N--------ventilation frequency (1/min)
p
1--------admission pressure (Pa)
T
1--------air inlet absolute temperature is got T1=(273+t
1)=283 (
K)
T
1------intake air temperature is got t
1=10 ℃
V
2--------dischargeable capacity (m
3)
T
2--------exhaust absolute temperature, T2=273(
K)
K--------adiabatic exponent, k=1.4
D--------cavity diameter (mm)
H--------housing depth (mm)
T--------deflation time (s)
τ-------time constant (s), this constant and cavity geometry and temperature association
Ps--------source of the gas absolute pressure (Pa);
(2) calculate suction port place gas flow, qx
=(1.5-2) q
V
(3) design fire-retardant gas temperature according to environment temperature and filament cutter working condition thereof;
(4) system prevents the equipment that the shredding knife grinding sparks is ignited: emery wheel is disc, diameter≤Φ 260mm, disc thickness≤26mm; Emery wheel (4) is located in the housing (8) of sealing, the volume of housing inner chamber (5) is greater than emery wheel volume at least 1/3, housing (8) is provided with emery wheel working hole (7) with respect to the rotor place, working hole is 30 * 100 square holes, emery wheel stretches out certain distance outside here, the top of grinding blade housing is provided with the fire-retardant gas access (6) of aperture≤Φ 10mm, and the below of housing is provided with suction port (3), orifice diameter≤Φ 50mm, suction port are that the abrasive dust, the dust that produce during with the wheel grinding blade are taken away; Be provided with nozzle (2) below the emery wheel working hole, nozzle is connected with source of the gas by pipeline; Nozzle is located at the below of emery wheel working hole (7), the blade contact position of nozzle alignment emery wheel (4) and rotor, and fire-retardant gas is sprayed to the blade contact position of emery wheel and rotor by emery wheel working hole below; The gauge tap of nozzle and the interlock of emery wheel gauge tap; Described gas source pipe is provided with temperature controller, makes fire-retardant gas keep suitable temperature;
(5) will prevent that the equipment that the shredding knife grinding sparks is ignited is installed on the filament cutter, emery wheel sharpening mode is outer ring sharpening mode, be the shaft center line of emery wheel and the axis of rotation line parallel of rotor, the outer bus of the cylinder of emery wheel overlaps with the outer bus of rotor (1) cylinder;
(6) open temperature controller, make fire-retardant gas temperature below 20 ℃, and circulation duct is unimpeded;
(7) gauge tap of unlatching emery wheel, the gauge tap of nozzle is opened simultaneously, temperature is at the fire-retardant gas below 20 ℃, after entering into working chamber, emery wheel high speed rotary grinding blade, fire-retardant gas is full of the space of working chamber along with emery wheel rotates, temperature in the working chamber is reduced, intercept air and enter.Nozzle is located at the below of the overhanging grinding blade of emery wheel position, sprays the position that fire-retardant gas direct projection sharpening spark generates, and reaches the effect that intercepts air and cool in the part.When sharpening stopped, fire-retardant gas was closed.Volume in the working chamber is about 0.0038m
3, suction port fire-retardant gas when taking abrasive dust, dust away will be taken away simultaneously, enters the dust suction pipe-line system, and its fire retardation still exists;
Also can adopt awl end cylinder emery wheel, cylinder height≤80mm, body diameter Φ 170mm, awl end diameter of phi 90mm, the high 28mm of the frustum of a cone; Emery wheel sharpening mode is awl end sharpening mode, and namely the shaft center line of the shaft center line of emery wheel and rotor is space crossed, and the outer bus of the awl end of emery wheel overlaps with the outer bus of rotor cylinder;
(8) the equipment continuous operation work cavity temperature that detects each embodiment after 8 hours is below 20 degree.
Operation principle of the present invention: as shown in Figure 1, emery wheel sharpening mode is outer ring sharpening mode, i.e. the axis of rotation line parallel of the shaft center line of emery wheel and rotor, the outer bus of the cylinder of emery wheel and rotor cylinder bus outward overlap.During the filament cutter operation, when knife sharpener is worked, require emery wheel that three motions are arranged, the one, the motion of emery wheel rotary grinding requires the linear velocity of emery wheel to reach more than the 25m/s; The 2nd, the wheel grinding feed motion, when the wearing and tearing of grinding process medium plain emery wheel, and behind the diamond trimming wheel, emery wheel will will have enough grinding depths to the position feeding of grinding blade, guarantees the sharp of grinding blade; The 3rd, the emery wheel transverse movement, the polishing width of outer ring blade grinder is narrow, can not cover the width of rotor, and emery wheel will be done transverse movement along rotor cylindrical bus when the blade of grinding diffusion knife, and the scope of motion is the width more than or equal to rotor.In the wheel grinding blade, fire-retardant gas enters the working chamber of emery wheel, is ejected into the position of grinding blade, cools, and intercepts air, restrains the generation of grinding sparks, reaches safety requirements.Fire-retardant gas is linked into knife sharpener by pipeline, and temperature is below 20 ℃, and pipeline is provided with controlled pressure and flow valve, makes the gas that enters fire-retardant sharpening spark effectively.
Another kind of structure as shown in Figure 2, emery wheel sharpening mode is awl end sharpening mode.The shaft center line that is the shaft center line of emery wheel and rotor is space crossed, and the outer bus of the awl end of emery wheel and rotor cylinder bus outward overlap.
Table 1
Claims (7)
1. method that prevents that the shredding knife grinding sparks from igniting is characterized in that concrete steps are as follows:
(1) add fire-retardant gas at emery wheel working space, the sharpening position of sealing, fire-retardant gas temperature is lower than 20 ℃, and fire-retardant body air consumption is:
-------gas constant, R=287.1 (N m/kg in the formula: R
K)
T
0--------environment absolute temperature is got 293(
K)
p
0--------atmospheric pressure (Pa)
V
1--------admission space (m
3)
N--------ventilation frequency (1/min)
p
1--------admission pressure (Pa)
T
1--------air inlet absolute temperature is got T1=(273+t
1)=283 (
K)
T
1-------intake air temperature is got t
1=10 ℃
V
2--------dischargeable capacity (m
3)
T
2--------exhaust absolute temperature, T2=273(
K)
K--------adiabatic exponent, k=1.4
D--------cavity diameter (mm)
H--------cavity thickness (mm)
T--------inflationtime (s)
τ-------time constant (s)
Ps--------source of the gas absolute pressure (Pa);
(2) the emery wheel working space in sealing uninterruptedly aspirates dust and gas continuously, and the gas flow qx at suction port place is fire-retardant gas air consumption q
VMultiply by coefficient 1.5-2, qx
=(1.5-2) q
V
(3) nozzle is located at the below of emery wheel working hole (7), the blade contact position of nozzle alignment emery wheel (4) and rotor, and fire-retardant gas is sprayed to the blade contact position of emery wheel and rotor by emery wheel working hole below;
(4) volume of housing inner chamber (5) is greater than emery wheel volume at least 1/3.
2. a kind of method that prevents that the shredding knife grinding sparks from igniting as claimed in claim 1 is characterized in that, any one in dry ice, nitrogen, helium, neon, argon, krypton, xenon, radon and the liquid carbon dioxide that described fire-retardant gas is gaseous state.
3. a kind of equipment that prevents that the shredding knife grinding sparks from igniting as claimed in claim 1, be provided with emery wheel (4) in rotor (1) one side, it is characterized in that, emery wheel (4) is located in the housing (8) of sealing, the volume of housing inner chamber (5) is greater than emery wheel volume at least 1/3, housing (8) is provided with emery wheel working hole (7) with respect to the rotor place, the top of housing is provided with fire-retardant gas access (6), the below of housing is provided with suction port (3), be provided with nozzle (2) below the emery wheel working hole, nozzle is connected with source of the gas by pipeline.
4. a kind of equipment that prevents that the shredding knife grinding sparks from igniting as claimed in claim 3 is characterized in that, described nozzle gauge tap and the interlock of emery wheel gauge tap.
5. a kind of equipment that prevents that the shredding knife grinding sparks from igniting as claimed in claim 3 is characterized in that described gas source pipe is provided with temperature controller, becomes in the endothermic process of steam state in liquid state, causes the low excessively air-flow of temperature to obtain heating.
6. a kind of equipment that prevents that the shredding knife grinding sparks from igniting as claimed in claim 3 is characterized in that, the rotation of described emery wheel (4) is parallel or space crossed with the rotor rotation.
7. a kind of equipment that prevents that the shredding knife grinding sparks from igniting as claimed in claim 3 is characterized in that, described emery wheel (4) is disc or truncated cone.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013101309840A CN103240677A (en) | 2013-04-16 | 2013-04-16 | Method for preventing grinding spark ignition of shredding cutter and equipment applying method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013101309840A CN103240677A (en) | 2013-04-16 | 2013-04-16 | Method for preventing grinding spark ignition of shredding cutter and equipment applying method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103240677A true CN103240677A (en) | 2013-08-14 |
Family
ID=48920727
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013101309840A Pending CN103240677A (en) | 2013-04-16 | 2013-04-16 | Method for preventing grinding spark ignition of shredding cutter and equipment applying method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103240677A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106392788A (en) * | 2016-11-08 | 2017-02-15 | 镇江东艺机械有限公司 | Fixing device for grinding of roller type glass cutter |
| CN111230626A (en) * | 2020-03-13 | 2020-06-05 | 深圳市三大金属有限公司 | Explosion-proof aluminum-magnesium alloy sheet metal polisher |
| CN111497055A (en) * | 2020-04-28 | 2020-08-07 | 陕西洪贝为商贸有限公司 | High polymer material granulator |
| CN114571321A (en) * | 2022-03-01 | 2022-06-03 | 徐州新兴达克罗科技有限公司 | Self-recovery type casting and forging piece inertia polishing device and use method thereof |
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|---|---|---|---|---|
| DE2932629A1 (en) * | 1979-08-11 | 1981-02-26 | Hauni Werke Koerber & Co Kg | Grinding device for tobacco cutter blades - monitors cutting dia. via sensor to automatically adjust setting of grinding disc |
| SU1029517A1 (en) * | 1981-09-03 | 1985-03-07 | Ульяновский политехнический институт | Method of abrasive machining |
| JP2904205B1 (en) * | 1998-01-30 | 1999-06-14 | 山口県 | Dry grinding / cutting method and device with controlled atmosphere gas concentration |
| GB2425935A (en) * | 2005-05-12 | 2006-11-15 | Garbuio Ltd | Tobacco cutting apparatus |
| CN201544073U (en) * | 2009-09-15 | 2010-08-11 | 徐清泉 | Knife grinder |
-
2013
- 2013-04-16 CN CN2013101309840A patent/CN103240677A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2932629A1 (en) * | 1979-08-11 | 1981-02-26 | Hauni Werke Koerber & Co Kg | Grinding device for tobacco cutter blades - monitors cutting dia. via sensor to automatically adjust setting of grinding disc |
| SU1029517A1 (en) * | 1981-09-03 | 1985-03-07 | Ульяновский политехнический институт | Method of abrasive machining |
| JP2904205B1 (en) * | 1998-01-30 | 1999-06-14 | 山口県 | Dry grinding / cutting method and device with controlled atmosphere gas concentration |
| GB2425935A (en) * | 2005-05-12 | 2006-11-15 | Garbuio Ltd | Tobacco cutting apparatus |
| CN201544073U (en) * | 2009-09-15 | 2010-08-11 | 徐清泉 | Knife grinder |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106392788A (en) * | 2016-11-08 | 2017-02-15 | 镇江东艺机械有限公司 | Fixing device for grinding of roller type glass cutter |
| CN111230626A (en) * | 2020-03-13 | 2020-06-05 | 深圳市三大金属有限公司 | Explosion-proof aluminum-magnesium alloy sheet metal polisher |
| CN111230626B (en) * | 2020-03-13 | 2021-07-06 | 深圳市三大金属有限公司 | Explosion-proof aluminum-magnesium alloy sheet metal polisher |
| CN111497055A (en) * | 2020-04-28 | 2020-08-07 | 陕西洪贝为商贸有限公司 | High polymer material granulator |
| CN114571321A (en) * | 2022-03-01 | 2022-06-03 | 徐州新兴达克罗科技有限公司 | Self-recovery type casting and forging piece inertia polishing device and use method thereof |
| CN114571321B (en) * | 2022-03-01 | 2022-11-29 | 徐州新兴达克罗科技有限公司 | Self-recovery type casting and forging piece inertia polishing device and use method thereof |
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Application publication date: 20130814 |