CN104289273A - Rolling machine, and cooling system for roller shafts of high-pressure grinding roller - Google Patents
Rolling machine, and cooling system for roller shafts of high-pressure grinding roller Download PDFInfo
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- CN104289273A CN104289273A CN201410586773.2A CN201410586773A CN104289273A CN 104289273 A CN104289273 A CN 104289273A CN 201410586773 A CN201410586773 A CN 201410586773A CN 104289273 A CN104289273 A CN 104289273A
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- roll shaft
- bearing
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- cooling
- fluid
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C4/00—Crushing or disintegrating by roller mills
- B02C4/28—Details
- B02C4/44—Cooling or heating rollers or bars
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- Food Science & Technology (AREA)
- Rolls And Other Rotary Bodies (AREA)
Abstract
The invention discloses a rolling machine, and a cooling system for roller shafts of a high-pressure grinding roller, and belongs to the technical field of roller shaft cooling of a material grinding device. The rolling machine and the cooling system are arranged on two matched roller shafts; a central hole is formed in each roller shaft, and penetrates from the non-driving end of the roller shaft to a bearing position in the other end of the roller shaft; a rotating joint is connected at the non-driving end of the roller shaft; a liquid cooling pipe stretching into the central hole is connected on the rotating joint; the rotating joint is connected to a plant cooling pipe network through a liquid inlet pipe and a liquid outlet pipe. The rolling machine and the cooling system mainly aim to solve the problems that the temperature of the bearing is too high because heat generated in the material crushing process of the rolling machine (the high-pressure grinding roller) and the temperature of the material are transmitted to the bearing through the roller shafts, and the temperature is risen because of friction heat generated during operation of the bearing.
Description
Technical field
The present invention relates to the roll shaft cooling system of material grinding equipment, particularly a kind of roll squeezer and high-pressure roller mill roll shaft cooling system being applicable to the industry material grinding equipment such as building material cement, metallurgical mine, chemical industry.
Background technology
Roll squeezer (high-pressure roller mill) is at special new technology, the new equipment of the industry crushing and grinding such as latest generation building material cement, metallurgical mine, chemical industry of the development of twentieth century end, exploitation, being known as by countries in the world is advanced energy-saving equipment, and worldwide achieves and apply rapidly.It under pole low energy expenditure and operating cost, can realize increasing substantially of material production; And the advantage such as it has that treating capacity is large, floor space is little, the requirement to transport and mounting condition of compact equipment and assembly is lower.At present, industrially developed country in the world, if the countries such as Germany, the U.S., Brazil, Russia, Australia are in the industrial circles such as building material cement, metallurgical mine, chemical industry, successful Application roll squeezer (high-pressure roller mill) carries out clinker, cement slurry, slag, slag, diamond dissociate, precious metal ore ore dressing, metal ore ore dressing and prepare the projects such as pelletizing feed, and achieves significant economic benefit and social benefit.
In the industry production processes such as traditional construction material cement, metallurgical mine, chemical industry, grinding pow consumption accounts for 60 ~ 70% of total power consumption, high energy consumption, poor efficiency are the hard nut to cracks of the industries such as building material cement, metallurgical mine, chemical industry, seriously hamper the lifting of Business Economic Benefit and production-scale maximization.Adopt in grinding system and pulverize the roll squeezer (high-pressure roller mill) of complete lamination and the technique that forms a complete production network based on the bed of material, can coordinate with ball milling or self-organizing system form various technological process with substitute existing traditional process.Due to the change of grinding mechanism, roll squeezer (high-pressure roller mill) and system process technology thereof can make grinding system power consumption reduce by 20 ~ 60%, and output increased 25 ~ 200%, is applicable to newly found the factory or old factory capacity expansion revamping.Along with the development of grinding technology in recent years, roll squeezer (high-pressure roller mill) based on bed-grinding principle has been widely used in the grinding field of clinker, cement slurry, slag, slag, iron ore, chemical industry etc., achieving obvious energy-saving effect, is energy-saving and cost-reducing ideal equipment.
Although roll squeezer (high-pressure roller mill) all achieves energy-saving effect in various degree after going into operation, also expose some problems.Such as in the process of crushing material, need to do work to material, part merit changes into the crushing energy to material, part merit changes into heat, will conduct heat to surrounding after changing into heat, such roll temperatures will raise, and corresponding roll temperatures raises and will be delivered on bearing, thus affects the normal use of bearing.In cement slurry system, the raw material entering roll squeezer (high-pressure roller mill) raw grinding system need because moisture is higher to dry, break up, classification, so just cause the temperature of charge entering roll squeezer (high-pressure roller mill) higher, general meeting is at about 100 DEG C, the highest meeting reaches about 120 DEG C, temperature of charge is higher, and the temperature being delivered to bearing by roll shaft will be higher, thus affects the normal use of bearing.
Well-known: the operating temperature of bearing and lubricant on important parameter impacts such as the viscosity of the mechanical performance of the play of bearing, bearing material, assembly relation, lubricant and performances clearly.Under high rotating speed or severe duty, the frictional heat that bearing operationally produces can make the temperature of bearing and lubricant raise gradually.The temperature of bearing and lubricant now also must be taken measures to be reduced to rational level, bearing just can be made normally to work.Therefore the strict effective operating temperature controlling bearing and lubricant to the normal operation of bearing and service life meaning very great.
Concerning the operation of roll squeezer (high-pressure roller mill), the frictional heat that bearing operationally produces and the temperature that causes rise and belong to normal phenomenon, its friction can not be stoped to change into heat, take away heat to carry out manual intervention by heat-exchange device.But the temperature of the heat energy produced in crushing material process and material self is delivered to bearing by roll shaft can to carry out during Bearing Temperature intervening to cause completely, to reduce its impact on bearing.
Summary of the invention
Goal of the invention of the present invention is: for above-mentioned Problems existing, a kind of roll squeezer and high-pressure roller mill roll shaft cooling system are provided, temperature mainly for the heat produced in roll squeezer (high-pressure roller mill) crushing material process, material self is delivered to by roll shaft the problem that temperature that bearing causes with the frictional heat causing Bearing Temperature and bearing and operationally produce rises, effectively can reduce the impact of its temperature on bearing, improve the service life of bearing, reduce maintenance cost.
The technical solution used in the present invention is as follows:
Roll squeezer of the present invention and high-pressure roller mill roll shaft cooling system, be located on two roll shafts cooperatively interacted, in roll shaft, be provided with centre bore, and described centre bore is through to the bearing in the other end from the anti-drive end of roll shaft; The anti-drive end place of described roll shaft is connected with swivel joint, described swivel joint is connected with the liquid cooling tube stretched in centre bore, wherein said swivel joint is connected to factory's cooling pipe network by feed tube and drain pipe.
Owing to have employed said structure, cooling fluid enters the central tube of swivel joint by feed tube from factory's cooling pipe network, the centre of liquid cooling tube is entered again by swivel joint and liquid cooling tube, flow out from the other end of liquid cooling tube, the space entering liquid cooling tube cylindrical and roll shaft centre bore returns swivel joint, get back in plant pipe network system finally by drain pipe and form cooling recirculation system, the heat produced in roll squeezer (high-pressure roller mill) crushing material process can be solved, the temperature of material self is delivered to bearing to cause Bearing Temperature by roll shaft, and the frictional heat that operationally produces of bearing and problem that the temperature that causes rises, effectively can reduce the impact of its temperature on bearing, improve the service life of bearing, reduce maintenance cost.The uptime of this cooling system and downtime: in startup, the normal operation of necessity with when stopping action, cooling water constantly must circulate in the equipment of running.After roll squeezer (high-pressure roller mill) is shut down, water cooling system still must circulate until run heat and leave from individual components, and machine components are roughly cooled to the temperature of surrounding environment.If roll shaft adopts sleeve structure, the temperature then tackling axle and roller shell before start detects, and must could open cooling water after the temperature of axle and roller shell is basically identical, to prevent axle and to overlap excessive temperature differentials and skid.When cooling system want out of service time, must be noted that following some: normal operation period, roll squeezer (high-pressure roller mill) short time stop time, cooling water must keep supply.Continue several days if stopped work, cooling water supply must stop.If the downtime is longer, cooling water must be discharged from system and cooling tube, can avoid etching apparatus like this, prevents from occurring deposition in cooling tube.Lower than the place of 0 DEG C, may to add antifreezing agent in cooling water in temperature, otherwise have the icing danger of cooling water.The temperature of the heat that the present invention produces in pressing materials process and material self is transmitted to roll shaft center from roll surface, and the fricative heat of bearing element is delivered to roll shaft center by bearing inner race, and heat is taken away by the water composite cooling pipe at roll shaft center by cooling water.Cooling water to flow into the swivel joint on roll shaft non-drive side by being arranged on and discharging.Two cover roll shaft cooling devices are connected with factory total cooling system pipe network, and the cooling water inflow entering every root roll shaft regulates by the valve on operation feed pipe, often overlaps roll shaft cooling device is equipped with flowmeter loop with one.
Roll squeezer of the present invention and high-pressure roller mill roll shaft cooling system, described centre bore is through to the bearing axis in the roll shaft other end from the anti-drive end of roll shaft; One end of described liquid cooling tube is connected on swivel joint, and the other end of described liquid cooling tube is inserted into 1/3 place of the bearing width of the roll shaft other end in centre bore.
Owing to have employed said structure, centre bore is just through bearing axis place, make cooling fluid just can form convolution in heart line place within the bearing in centre bore, fully can contact with centre bore in the position of bearing, thus the cooling effect to position of bearings can be reached; In like manner, just also fully can contact in position of bearings convolution in centre bore to make cooling fluid, liquid cooling tube extend into the end in centre bore, just extend into 1/3 place of position of bearings place bearing width, when making cooling fluid enter into centre bore from liquid cooling tube, the just bosom of aligned central holes is also the position of bearing axis; So cooling fluid out just rushes at the innermost wall of centre bore once from liquid cooling tube, cools fully to position of bearings, thus reaches the cooling effect of the drive end bearing of roll shaft; Wherein the bearing of anti-drive end is then cooled its position of bearings by the liquid flow through in centre bore.
Roll squeezer of the present invention and high-pressure roller mill roll shaft cooling system, described liquid cooling tube extend into the one end in centre bore, and interference fit is in the inwall of centre bore; The fixed block that the other end of described liquid cooling tube is arranged is connected with swivel joint, and this end of described liquid cooling tube is fixed on roll shaft center.
Owing to have employed said structure, the enjoyable inwall being matched with centre bore of liquid cooling tube, then keep surely leaning on of its position, can't impact and affect its position, keep its cooling effect by cooling fluid; In order to realize cooling fluid flow out from liquid cooling tube time, just to the innermost wall of centre bore, ensure cooling effect, also with regard to needing, the center line of this liquid cooling tube and centre bore is consistent, therefore need other one end of liquid cooling tube to be fixed on swivel joint, and adjust this end and be positioned at roll shaft center.
Roll squeezer of the present invention and high-pressure roller mill roll shaft cooling system, described swivel joint is fixedly connected on end cap, and end cap seal is fixed on roll shaft anti-drive end end face; Described swivel joint is connected with feed liquor adapter and fluid adapter, described fluid adapter is connected to factory's cooling pipe network by fluid connecting hose; Described feed liquor adapter is connected to factory's cooling pipe network by feed liquor connecting hose; The adapter of described fluid is through end cap and be tightly connected, wherein said feed liquor adapter from fluid adapter through and with liquid cooling but the seal of tube be connected.
Owing to have employed said structure, be convenient to whole cooling system to be communicated with factory's cooling pipe network, and by factory's cooling pipe network, supply cooling fluid is carried out to it, thus effectively can realize the cooling of roll squeezer and high-pressure roller mill, effectively can reduce the impact of its temperature on bearing, improve the service life of bearing, reduce maintenance cost.
Roll squeezer of the present invention and high-pressure roller mill roll shaft cooling system, described feed liquor adapter is connected with liquid cooling tube by tube connector, and be provided with sealing ring between described tube connector and liquid cooling tube, described sealing ring is lip-type packing or V-shaped seal ring.
Owing to have employed said structure, for preventing water inlet between swivel joint and water composite cooling pipe and exhalant canal UNICOM, sealing ring is provided with between tube connector and water composite cooling pipe, sealing circle can be lip-type packing also can be V-shaped seal ring, choice for use can be needed according to the time, applied widely.
Roll squeezer of the present invention and high-pressure roller mill roll shaft cooling system, be provided with flowmeter and control valve in described factory cooling pipe network; Liquid temperature differential≤32 DEG C of adapter place of described feed liquor and fluid adapter place; Wherein feed liquor adapter place is 0.2-0.4MPa with the fluid pressure differential of fluid adapter place.
Owing to have employed said structure, also comprise flowmeter and control valve with plant pipe network coupling part, this control valve can be also can be manually electronic, thus is convenient to control.If wherein excessive temperature differentials, then can have influence on the temperature difference in cooling system inside and outside liquid cooling tube, thus badly influence the life-span of liquid cooling tube, have a strong impact on its cooling effect, affect the life-span of bearing, therefore feed liquor maximum temperature must not more than 32 DEG C; In like manner, fluid pressure differential is excessive, then can make to enter the difference of the fluid pressure in centre bore and in outflow centre bore excessive, therefore the inside and outside pressure born of liquid cooling tube is inconsistent, liquid cooling tube is very easily caused to be out of shape, thus have influence on the mistake liquid measure of liquid cooling tube, finally have influence on its cooling effect to bearing.
Preferably, described feed liquor adapter place fluid temperature≤28 DEG C.
If excessive temperature differentials, then can have influence on the temperature difference in cooling system inside and outside liquid cooling tube, thus badly influence the life-span of liquid cooling tube, have a strong impact on its cooling effect, affect the life-span of bearing; Therefore this temperature is preferably not more than 28 DEG C.
In sum, owing to have employed technique scheme, the invention has the beneficial effects as follows:
Roll squeezer of the present invention and high-pressure roller mill roll shaft cooling system, temperature mainly for the heat produced in roll squeezer (high-pressure roller mill) crushing material process, material self is delivered to by roll shaft the problem that temperature that bearing causes with the frictional heat causing Bearing Temperature and bearing and operationally produce rises, effectively can reduce the impact of its temperature on bearing, improve the service life of bearing, reduce maintenance cost.
Accompanying drawing explanation
Examples of the present invention will be described by way of reference to the accompanying drawings, wherein:
Fig. 1 structural representation of the present invention;
Fig. 2 is the A direction view in Fig. 1;
Fig. 3 is the partial enlarged drawing of the I part in Fig. 1.
In its figure, arrow is liquid flow path direction, marks in figure: 1-2-roll shaft, 3-swivel joint, 4-end cap, 5-liquid cooling tube, 6-feed liquor is taken over, 7-fluid is taken over, 8-tube connector, 9-sealing ring, 10-feed liquor connecting hose, 11-fluid connecting hose, 12-bearing axis, 13-factory cooling pipe network, 14-liquid outlet, 15-inlet, 16-bolt.
Detailed description of the invention
All features disclosed in this description, or the step in disclosed all methods or process, except mutually exclusive feature and/or step, all can combine by any way.
Arbitrary feature disclosed in this description (comprising any accessory claim, summary), unless specifically stated otherwise, all can be replaced by other equivalences or the alternative features with similar object.That is, unless specifically stated otherwise, each feature is an example in a series of equivalence or similar characteristics.
As shown in Figure 1 to Figure 3, roll squeezer of the present invention and high-pressure roller mill roll shaft cooling system, be located on two roll shafts cooperatively interacted, in roll shaft, be provided with centre bore, described centre bore is through to the bearing axis in the roll shaft other end from the anti-drive end of roll shaft; The anti-drive end place of described roll shaft is connected with swivel joint 3, described swivel joint 3 is connected with the liquid cooling tube 5 stretched in centre bore, one end of wherein said liquid cooling tube 5 is connected on swivel joint 3, wherein said liquid cooling tube 5 is that the fixed block that its other end is arranged is connected with swivel joint 3, this end of described liquid cooling tube 5 is fixed on roll shaft center, the other end of described liquid cooling tube 5 is inserted into 1/3 place of the bearing width of the roll shaft other end in centre bore, and interference fit is in the inwall of centre bore; Wherein said swivel joint 3 is connected to factory's cooling pipe network 13 by feed tube and drain pipe, in described factory cooling pipe network 13, is provided with flowmeter and control valve; Fluid temperature≤32 DEG C, described feed liquor adapter 6 place, preferably fluid temperature≤28 DEG C, described feed liquor adapter 6 place; Wherein the fluid pressure differential at feed liquor adapter 6 place and fluid adapter 7 place is 0.2-0.4MPa.Wherein said swivel joint 3 is fixedly connected on end cap 4, and end cap 4 is sealingly fastened on roll shaft anti-drive end end face; Described swivel joint 3 is connected with feed liquor adapter 6 and fluid adapter 7, described fluid adapter 7 is connected to factory's cooling pipe network 13 by fluid connecting hose 11; Described feed liquor adapter 6 is connected to factory's cooling pipe network 13 by feed liquor connecting hose 10; Described fluid adapter 7 is passed end cap 4 and is tightly connected, and wherein said feed liquor adapter 6 is passed and is tightly connected with liquid cooling tube 5 from fluid adapter 7; Wherein said feed liquor adapter 6 is connected with liquid cooling tube 5 by tube connector 8, is provided with sealing ring 9 between described tube connector 8 and liquid cooling tube 5, and described sealing ring 9 is lip-type packing or V-shaped seal ring.
The present invention is intended to be delivered to by roll shaft the problem that temperature that bearing causes with the frictional heat causing Bearing Temperature and bearing and operationally produce rises for the temperature of the heat produced in roll squeezer (high-pressure roller mill) crushing material process, material self, a kind of roll squeezer (high-pressure roller mill) is provided to use roll shaft cooling system, to reduce its impact on bearing, improve the service life of bearing, reduce maintenance cost.
The temperature of the heat produced in pressing materials process and material self is transmitted to roll shaft center from roll surface, and the fricative heat of bearing element is delivered to roll shaft center by bearing inner race, and heat is taken away by the water composite cooling pipe at roll shaft center by cooling water.Cooling water to flow into the swivel joint on roll shaft non-drive side by being arranged on and discharging.Two cover roll shaft cooling devices are connected with factory total cooling system pipe network, and the cooling water inflow entering every root roll shaft regulates by the valve on operation feed pipe, often overlaps roll shaft cooling device is equipped with flowmeter loop with one.
Roll shaft cooling device, cooling water enters swivel joint central tube by water inlet pipe, the centre of water composite cooling pipe is entered again by the tube connector of swivel joint and water composite cooling pipe, flow out from the other end of water composite cooling pipe, the space entering water composite cooling pipe cylindrical and roll shaft centre bore returns swivel joint, gets back to plant pipe network system finally by outlet pipe.For preventing water inlet between swivel joint and water composite cooling pipe and exhalant canal UNICOM, between tube connector and water composite cooling pipe, be provided with sealing ring.(detailed water (flow) direction refers to Fig. 3)
Uptime and downtime: in startup, the normal operation of necessity with when stopping action, cooling water constantly must circulate in the equipment of running.After roll squeezer (high-pressure roller mill) is shut down, water cooling system still must circulate until run heat and leave from individual components, and machine components are roughly cooled to the temperature of surrounding environment.If roll shaft adopts sleeve structure, the temperature then tackling axle and roller shell before start detects, and must could open cooling water after the temperature of axle and roller shell is basically identical, to prevent axle and to overlap excessive temperature differentials and skid.
When cooling system want out of service time, must be noted that following some:
Normal operation period, when roll squeezer (high-pressure roller mill) short time stops, cooling water must keep supply.
Continue several days if stopped work, cooling water supply must stop.
If the downtime is longer, cooling water must be discharged from system and cooling tube, can avoid etching apparatus like this, prevents from occurring deposition in cooling tube.
Lower than the place of 0 DEG C, may to add antifreezing agent in cooling water in temperature, otherwise have the icing danger of cooling water.
Roll squeezer of the present invention and high-pressure roller mill roll shaft cooling system, temperature mainly for the heat produced in roll squeezer (high-pressure roller mill) crushing material process, material self is delivered to by roll shaft the problem that temperature that bearing causes with the frictional heat causing Bearing Temperature and bearing and operationally produce rises, effectively can reduce the impact of its temperature on bearing, improve the service life of bearing, reduce maintenance cost.
The present invention is not limited to aforesaid detailed description of the invention.The present invention expands to any new feature of disclosing in this manual or any combination newly, and the step of the arbitrary new method disclosed or process or any combination newly.
Claims (7)
1. a roll squeezer and high-pressure roller mill roll shaft cooling system, is located on two roll shafts cooperatively interacted, it is characterized in that: in roll shaft, be provided with centre bore, and described centre bore is through to the bearing in the other end from the anti-drive end of roll shaft; The anti-drive end place of described roll shaft is connected with swivel joint (3), described swivel joint (3) is connected with the liquid cooling tube (5) stretched in centre bore, wherein said swivel joint (3) is connected to factory's cooling pipe network (13) by feed tube and drain pipe.
2. roll squeezer as claimed in claim 1 and high-pressure roller mill roll shaft cooling system, is characterized in that: described centre bore is through to the bearing axis in the roll shaft other end from the anti-drive end of roll shaft; One end of described liquid cooling tube (5) is connected on swivel joint (3), and the other end of described liquid cooling tube (5) is inserted into 1/3 place of the bearing width of the roll shaft other end in centre bore.
3. roll squeezer as claimed in claim 2 and high-pressure roller mill roll shaft cooling system, is characterized in that: described liquid cooling tube (5) extend into the one end in centre bore, and interference fit is in the inwall of centre bore; The fixed block that the other end of described liquid cooling tube (5) is arranged is connected with swivel joint (3), and this end of described liquid cooling tube (5) is fixed on roll shaft center.
4. roll squeezer as claimed in claim 3 and high-pressure roller mill roll shaft cooling system, it is characterized in that: described swivel joint (3) is fixedly connected on end cap (4), end cap (4) is sealingly fastened on roll shaft anti-drive end end face; Described swivel joint (3) is connected with feed liquor adapter (6) and fluid adapter (7), described fluid adapter (7) is connected to factory's cooling pipe network (13) by fluid connecting hose (11); Described feed liquor adapter (6) is connected to factory's cooling pipe network (13) by feed liquor connecting hose (10); Described fluid adapter (7) is through end cap (4) and be tightly connected, wherein said feed liquor adapter (6) from fluid adapter (7) through and be tightly connected with liquid cooling tube (5).
5. roll squeezer as claimed in claim 4 and high-pressure roller mill roll shaft cooling system, it is characterized in that: described feed liquor adapter (6) is connected with liquid cooling tube (5) by tube connector (8), be provided with sealing ring (9) between described tube connector (8) and liquid cooling tube (5), described sealing ring (9) is lip-type packing or V-shaped seal ring.
6. the roll squeezer as described in one of claim 1 to 5 and high-pressure roller mill roll shaft cooling system, is characterized in that: be provided with flowmeter and control valve in described factory cooling pipe network (13); Fluid temperature≤32 DEG C at described feed liquor adapter (6) place; Wherein feed liquor adapter (6) place and fluid take over the fluid pressure differential at (7) place is 0.2-0.4MPa.
7. roll squeezer as claimed in claim 6 and high-pressure roller mill roll shaft cooling system, is characterized in that: fluid temperature≤28 DEG C at described feed liquor adapter (6) place.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410586773.2A CN104289273A (en) | 2014-10-29 | 2014-10-29 | Rolling machine, and cooling system for roller shafts of high-pressure grinding roller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410586773.2A CN104289273A (en) | 2014-10-29 | 2014-10-29 | Rolling machine, and cooling system for roller shafts of high-pressure grinding roller |
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| CN104289273A true CN104289273A (en) | 2015-01-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410586773.2A Pending CN104289273A (en) | 2014-10-29 | 2014-10-29 | Rolling machine, and cooling system for roller shafts of high-pressure grinding roller |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104858613A (en) * | 2015-03-26 | 2015-08-26 | 中钢集团安徽天源科技股份有限公司 | Device and method for dismantling roller shell of high-pressure roller mill |
| WO2016177603A1 (en) * | 2015-05-07 | 2016-11-10 | Thyssenkrupp Industrial Solutions Ag | Grinding roller with a cooling device |
| CN107127990A (en) * | 2017-07-10 | 2017-09-05 | 青岛传辉机械设备有限公司 | Machine for rolling parts, driven roller and roller group |
| CN109289702A (en) * | 2018-10-16 | 2019-02-01 | 翁培生 | Roll shaft with axle center cooling system and the Doubleroller compaction granulator using the roll shaft |
| CN115041256A (en) * | 2022-08-11 | 2022-09-13 | 江苏京德新材料有限公司 | Mould powder processing and grind machine with moulding piece |
| CN115253904A (en) * | 2022-07-29 | 2022-11-01 | 浙江铁狮高温材料有限公司 | Compact zirconia water gap core production equipment |
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