CN204622658U - A kind of hydraulic forming device for suppressing moulded coal - Google Patents
A kind of hydraulic forming device for suppressing moulded coal Download PDFInfo
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Abstract
The utility model relates to pulverized coal forming technical field, aims to provide a kind of hydraulic forming device for suppressing moulded coal.This kind comprises hydraulic press main body, hydraulic pump, fuel tank, computer, control device and oil pipe for the hydraulic forming device suppressing moulded coal; Hydraulic press main body comprises hydraulic cylinder, workbench, hydraulic press top board and support post; Hydraulic pump is connected with hydraulic cylinder by oil pipe, and fuel tank is connected with hydraulic pump, and fuel tank is used for depositing hydraulic oil; Computer is provided with Survey control module, control device comprises switch and USB interface.Hydraulic forming device of the present utility model, can meet the technological requirement of briquette molding completely, also reduce the equipment requirement to binding agent forming technique, and is completed by the control software design of computer and carry out good control to briquette molding process.
Description
Technical field
The utility model is about pulverized coal forming technical field, particularly a kind of hydraulic forming device for suppressing moulded coal.
Background technology
Pipeline transportation, as the fifth-largest means of transportation of China, is supplementary and perfect to the one of modern transportation system.Hydraulic tube transport, as an important branch of pipeline transportation, is widely applied, in recent years mainly for delivery of some solid granules.On this basis, the technical development of moulded coal phase flow pipeline hydraulic transportation is got up.The basic thought of moulded coal hydraulic tube transport is the cylindrical coal column first pulverized coal particle being pressed into waterproof antiwear, then is injected in pipeline by coal column, take pressure water as carrying fluid, utilizes pump power that coal column is carried out long distance delivery.Realize moulded coal hydraulic tube transport first problems faced be the cylindrical coal column how pulverized coal particle being pressed into waterproof antiwear.
Pulverized coal particle is pressed into cylindrical coal column and belongs to pulverized coal forming technology, mainly contain extruded and compression molding two kinds of methods.Extruded by applying powerful pressure to the coal dust in the recipient on pressurizing unit, make coal dust produce directed plastic deformation, from recipient coal dust extruded and obtain required section configuration.Although can realize quick production extruded, be not easy the size of control moulded coal and also need subsequent treatment to coal column, therefore current pulverized coal forming technology is based on compression molding.Coal dust is first put in dies cavity by compression molding technology, makes its curing molding, the then demoulding by mold closing pressurization.Because of its can meet coal column dimensional requirement and shaping after coal column directly use, phase flow pipeline hydraulic transportation often adopts compression molding to produce moulded coal for carrying.
Compression molding technology is divided into again binder free moulding process and binding agent moulding process.Binder free moulding process relies on character and the caking property component of coal self, be pressed into the process of moulded coal under external force, but the moulded coal suppressed does not have water proofing property, therefore, it is possible to the technique that compacting is suitable for phase flow pipeline hydraulic transportation should adopt binding agent forming technique.Binding agent moulding process is put in mould after referring to and being mixed with binding agent by coal dust, and in former, cure under pressure forms moulded coal, namely obtains required product after taking out moulded coal.
But, the compression molding device that existing binding agent forming technique adopts, technical process are simple, easily cause coal dust consolidation degree inadequate, not high to the water content of coal dust, particle diameter and binding agent ratio requirement, and the shaped device of routine cannot realize direct demold, independent stripper apparatus need be installed additional, add the complexity of technique.
Utility model content
Main purpose of the present utility model is to overcome deficiency of the prior art, provides a kind of pulverized coal forming device meeting phase flow pipeline hydraulic transportation moulded coal.For solving the problems of the technologies described above, solution of the present utility model is:
There is provided a kind of hydraulic forming device for suppressing moulded coal, mould can be utilized to suppress moulded coal, and described hydraulic forming device comprises hydraulic press main body, hydraulic pump, fuel tank, Computer Control Unit and oil pipe;
Described hydraulic press main body comprises hydraulic cylinder, workbench, hydraulic press top board and support post; Described hydraulic cylinder is arranged on the bottom of hydraulic press main body, and workbench is arranged on hydraulic cylinder top and contacts with each other with the cylinder cap of hydraulic cylinder, and hydraulic cylinder can utilize cylinder cap to provide the pressure needed for moulding process to workbench, and mobile working platform; Described support post passes bottom and the hydraulic press top board of workbench connecting fluid cylinder pressure, for supporting whole hydraulic press main body;
The downside of described hydraulic press top board has been bolted mold fixed plate, workbench is provided with draw-in groove and stripper plate, mold fixed plate and draw-in groove can be utilized to be fixed on workbench by mould, stripper plate can move up and down under the effect of hydraulic cylinder, completes the demoulding for utilizing stripper plate lifting mould;
Described hydraulic pump is connected with the hydraulic cylinder in hydraulic press main body by oil pipe, and described fuel tank is connected with hydraulic pump, and fuel tank is used for depositing hydraulic oil; Hydraulic oil pump in fuel tank can be given hydraulic cylinder by hydraulic pump, and the piston of hydraulic cylinder can move upward under the promotion of hydraulic oil, and then the cylinder cap platform that pushes the work forward moves upward, and realizes pressurization; Hydraulic pump can extract hydraulic oil backflow, and piston declines, and then cylinder cap and workbench also move downward, and realize pressure release;
Described Computer Control Unit comprises computer and control device; Computer is provided with Survey control module, for pressing process and the optimum configurations of hydraulic control owner body; Described control device comprises switch and USB interface, and switch is for controlling opening and closing hydraulic forming device, and USB interface is used for computer to access hydraulic forming device.
In the utility model, described Survey control module adopts the measurement control software of conventional omnipotent servo hydraulic machine.
In the utility model, described hydraulic forming device also comprises mould, and mould comprises cylindrical mold, cylindrical upper plug and cylindrical lower plunger, for auxiliary compacting cylinder briquette; Described cylindrical upper plug is for being fixed on the downside of mold fixed plate, and cylindrical lower plunger is for being arranged in the draw-in groove of workbench, and cylindrical mold is for being fixed on stripper plate; Stripper plate after pressure release, can utilize the promotion lifting cylindrical mold of hydraulic cylinder, realizes the demoulding.
In the utility model, the diameter of the internal diameter of described cylindrical mold, the diameter of cylindrical upper plug, cylindrical lower plunger is all identical with the basal diameter of the cylinder briquette of required compacting.
In the utility model, the inner surface of described cylindrical mold is coated with chromium.
In the utility model, the mould that described mould adopts stainless steel to make.
In the utility model, the output pressure of described hydraulic forming device is more than 138MPa.
There is provided the control method based on described hydraulic forming device, for raw coal is pressed into moulded coal, described control method specifically comprises the steps:
Steps A: utilize ball mill to be ground by raw coal, obtains the coal dust (Ball-milling Time is 8 hours) that particle diameter is less than 1mm;
Step B: add binding agent and water in coal dust, mixes formation mixture, and makes the quality of binding agent be 3% ~ 25% of quality of pc, ensures that the quality of water is 5% ~ 20% of quality of pc;
Step C: be installed to by cylindrical lower plunger on the draw-in groove of workbench fixing, cylindrical upper plug is fixed on the mold fixed plate at top, and cylindrical mold is placed on stripper plate, finally mixture is loaded mould, completes filler;
Step D: the switch of control device for opening, open hydraulic forming device and computer wherein, maximum pressure is forced into the pressing speed of 20 ~ 80kN/min by Survey control module hydraulic control cylinder, pressurize again, and make the dwell time be no less than 5min, finally with the speed pressure release being less than pressing speed to pressure for zero;
Step e: after pressure release completes, by Survey control module hydraulic control cylinder lifting stripper plate, by cylindrical mold upwards jack-up, cylindrical upper plug and cylindrical lower plunger keep motionless, take out compressing after cylinder briquette, namely complete moulded coal compacting.
In the utility model, described binding agent adopts cationic emulsified bitumen.
In the utility model, the basal diameter of described cylinder briquette is between 45 ~ 500mm, and the height of cylinder briquette is 1 ~ 3 times of diameter.
Compared with prior art, the beneficial effects of the utility model are:
1, the hydraulic forming device in the utility model, compared to the workbench of the omnipotent servo hydraulic machine of routine, can meet the technological requirement of briquette molding completely, and is completed by the control software design of computer and carry out good control to briquette molding process; In addition, also reduce the equipment requirement to binding agent forming technique, and utilize perfect Computer Control Unit to realize automatic pressing process, allow to the compressing work of coal dust carrying out Automatic continuous; And hydraulic forming device has been installed stripper apparatus, directly can either carry out releasing process, reduce the complexity of moulding process, the height of hydraulic press can be reduced again, take full advantage of the space of working region.
2, the cylinder briquette that the utility model is compressing, has good waterproof antiwear effect, can be used for long-distance pipe Hydraulic transportation; By with the addition of a small amount of organic binder bond, neither affecting the quality of coal dust, in turn ensure that the quality of coal column.Control method technical process of the present utility model simply, easily realizes, and applied widely, has both been applicable to high-quality coal, is also applicable to low-quality coal.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of hydraulic forming device in the utility model.
Reference numeral in figure is: 1 hydraulic press top board; 2 mold fixed plates; 3 support posts; 4 cylindrical upper plugs; 5 cylinder briquettes; 6 cylindrical mold; 7 stripper plates; 8 cylindrical lower plungers; 9 hydraulic cylinders; 10 oil pipes; 11 computers; 12 control device; 13 fuel tanks; 14 hydraulic pumps.
Detailed description of the invention
Below in conjunction with accompanying drawing and detailed description of the invention, the utility model is described in further detail:
A kind of hydraulic forming device for suppressing moulded coal as shown in Figure 1, comprises hydraulic press main body, hydraulic pump 14, fuel tank 13, Computer Control Unit, oil pipe 10 and mould.By changing the mould of different size on the workbench of hydraulic forming device, realize the coal column of compacting different size, and the output pressure of hydraulic forming device is more than 138MPa.
Described hydraulic press main body 9 comprises hydraulic cylinder 9, workbench, hydraulic press top board 1 and support post 3.Described hydraulic cylinder 9 is arranged on the bottom of hydraulic press main body, comprises cylinder barrel, cylinder cap, piston, piston rod, sealing device, buffer unit, exhaust apparatus; Workbench is arranged on hydraulic cylinder 9 top and contacts with each other with the cylinder cap of hydraulic cylinder 9, and hydraulic cylinder 9 can utilize cylinder cap to provide the pressure needed for moulding process to workbench, and mobile working platform.Described support post 3 is arranged in four angular ranges of device, through bottom and the hydraulic press top board 1 of workbench connecting fluid cylinder pressure 9, for supporting whole hydraulic press main body.
The downside of described hydraulic press top board 1 has been bolted mold fixed plate 2, workbench is provided with draw-in groove and stripper plate 7, and mold fixed plate 2 and draw-in groove can be utilized to be fixed on workbench by mould.Mould in the present embodiment comprises cylindrical mold 6, cylindrical upper plug 4 and cylindrical lower plunger 8, for auxiliary compacting cylinder briquette 5.Mould is stainless steel, and the inner surface of cylindrical mold 6 is coated with chromium, for ensureing that it is smooth; And the diameter of the internal diameter of cylindrical mold 6, cylindrical upper plug 4, the diameter of cylindrical lower plunger 8, all identical with the basal diameter of the cylinder briquette 5 of required compacting.Described cylindrical upper plug 4 is for being fixed on the downside of mold fixed plate 2, and cylindrical lower plunger 8 is for being arranged in the draw-in groove of workbench, and cylindrical mold 6 is for being fixed on stripper plate 7.Stripper plate 7 after pressure release, can utilize the promotion lifting cylindrical mold 6 of hydraulic cylinder 9, realizes the demoulding.
Described hydraulic pump 14 is connected with the hydraulic cylinder 9 in hydraulic press main body by oil pipe 10, and described fuel tank 13 is connected with hydraulic pump 14, and fuel tank 13 is for depositing hydraulic oil.Hydraulic oil pump in fuel tank 13 can be given hydraulic cylinder 9 by hydraulic pump 14, and the piston of hydraulic cylinder 9 can move upward under the promotion of hydraulic oil, and then the cylinder cap platform that pushes the work forward moves upward, and realizes pressurization; Hydraulic pump 14 can extract hydraulic oil backflow, and piston declines, and then cylinder cap and workbench also move downward, and realize pressure release.
Described Computer Control Unit comprises computer 11 and control device 12.Computer 11 is provided with Survey control module, adopts the measurement control software of conventional omnipotent servo hydraulic machine to realize, for pressing process and the optimum configurations of hydraulic control owner body; In the present embodiment, that Survey control module adopts is the TT&C software V2.0 of omnipotent servo hydraulic machine.Described control device 12 comprises switch and USB interface, and switch is for controlling opening and closing hydraulic forming device, and USB interface is used for computer 11 to access hydraulic forming device.
Utilize above-mentioned hydraulic forming device, raw coal is pressed into moulded coal, binding agent wherein adopts cationic emulsified bitumen, and this control method specifically comprises the steps:
Steps A: utilize ball mill to be ground by raw coal, Ball-milling Time is 8 hours, obtains the coal dust that particle diameter is less than 1mm;
Step B: add binding agent and water in coal dust, mixes formation mixture, and makes the quality of binding agent be 3% ~ 25% of quality of pc, ensures that the quality of water is 5% ~ 20% of quality of pc;
Step C: be installed to by cylindrical lower plunger 8 on the draw-in groove of workbench fixing, cylindrical upper plug 4 is fixed on the mold fixed plate 2 at top, and cylindrical mold 6 is placed on stripper plate 7, finally mixture is loaded mould, completes filler;
Step D: the switch of control device for opening 12, open hydraulic forming device and computer wherein 11, maximum pressure is forced into the pressing speed of 20 ~ 80kN/min by Survey control module hydraulic control cylinder 9, pressurize again, and make the dwell time be no less than 5min, finally with the speed pressure release being less than pressing speed to pressure for zero;
Step e: after pressure release completes, by Survey control module hydraulic control cylinder 9 lifting stripper plate 7, by cylindrical mold 6 upwards jack-up, cylindrical upper plug 4 and cylindrical lower plunger 8 keep motionless, take out compressing after cylinder briquette 5, namely complete moulded coal compacting.The basal diameter of this cylinder briquette 5 is between 45 ~ 500mm, and the height of cylinder briquette 5 is 1 ~ 3 times of diameter.
The following examples can make professional and technical personnel's comprehend the utility model of this specialty, but limit the utility model never in any form.
The compacting of embodiment 1 moulded coal
Selection anthracite is raw material, and selection cationic emulsified bitumen is binding agent.Utilize hydraulic forming device that anthracite is pressed into moulded coal, control method specifically comprises the steps:
Steps A: ground by ball mill by anthracite, Ball-milling Time is 8 hours, and the coal particle size obtained is less than 1mm.
Step B: add binding agent and water in coal dust, mixes formation mixture, and makes the quality of cationic emulsified bitumen be 3% of quality of pc, and the quality of water is 20% of quality of pc.
Step C: fixing on the draw-in groove cylindrical lower plunger 8 being arranged on workbench, cylindrical upper plug 4 is fixed on the mold fixed plate 2 at top, and cylindrical mold 6 is placed on stripper plate 7, is loaded by mixture in mould, completes filler.
Step D: the switch on opening controller, open machine and computer 11, the control software design of start-up simulation machine 11 runs machine, hydraulic oil is sent into hydraulic cylinder 9 by oil circuit 10 by hydraulic pump 14, and hydraulic cylinder 9 starts pressurization, and workbench rises along support post 3, pressure is forced into 188MPa with the speed of 80kN/min, pressurize 8min again, finally with the speed pressure release of 60kN/min to pressure for 0, formed cylinder briquette 5.
Step e: after pressure release terminates, the control software design hydraulic control forming machine lifting stripper plate 7 of computer 11, lift cylindrical mold 6, cylindrical upper plug 4 and cylindrical lower plunger 8 maintain static, expose the rear stop solution pressing molding device of cylinder briquette 5, take out cylinder briquette 5, complete the demoulding, the cylinder briquette 5 obtained can be placed in hydraulic pipe to be carried.
In this example, the internal diameter of cylindrical mold 6 is 45mm, and the diameter of upper lower plunger is 45mm.The basal diameter of the cylinder briquette 5 be pressed into is 45mm, is highly 135mm; And cylinder briquette 5 water absorption rate in transportation is 6.95%, wear rate is 0.83%, has good water proofing property and wearability.
The compacting of embodiment 2 moulded coal
Selection anthracite is raw material, and selection cationic emulsified bitumen is binding agent.Utilize hydraulic forming device that anthracite is pressed into moulded coal, control method specifically comprises the steps:
Steps A: ground by ball mill by anthracite, Ball-milling Time is 8 hours, and the coal particle size obtained is less than 1mm.
Step B: add binding agent and water in coal dust, mixes formation mixture, and makes the quality of cationic emulsified bitumen be 10% of quality of pc, and the quality of water is 10% of quality of pc.
Step C: fixing on the draw-in groove cylindrical lower plunger 8 being arranged on workbench, cylindrical upper plug 4 is fixed on the mold fixed plate 2 at top, and cylindrical mold 6 is placed on stripper plate 7, is loaded by mixture in mould, completes filler.
Step D: the switch on opening controller, open machine and computer 11, the control software design of start-up simulation machine 11 runs machine, hydraulic oil is sent into hydraulic cylinder 9 by oil circuit 10 by hydraulic pump 14, and hydraulic cylinder 9 starts pressurization, and workbench rises along support post 3, pressure is forced into 188MPa with the speed of 60kN/min, pressurize 6min again, finally with the speed pressure release of 40kN/min to pressure for 0, formed cylinder briquette 5.
Step e: after pressure release terminates, the control software design hydraulic control forming machine lifting stripper plate 7 of computer 11, lift cylindrical mold 6, cylindrical upper plug 4 and cylindrical lower plunger 8 maintain static, expose the rear stop solution pressing molding device of cylinder briquette 5, take out cylinder briquette 5, complete the demoulding, the cylinder briquette 5 obtained can be placed in hydraulic pipe to be carried.
In this example, the internal diameter of cylindrical mold 6 is 150mm, and the diameter of upper lower plunger is 150mm.The basal diameter of the cylinder briquette 5 be pressed into is 150mm, is highly 188mm; And cylinder briquette 5 water absorption rate in transportation is 4.58%, wear rate is 2.12%, has good water proofing property and wearability.
The compacting of embodiment 3 moulded coal
Select anthracite to suppress, cationic emulsified bitumen selected by binding agent.Utilize hydraulic forming device that anthracite is pressed into moulded coal, control method specifically comprises the steps:
Steps A: ground by ball mill by anthracite, Ball-milling Time is 8 hours, and the coal particle size obtained is less than 1mm.
Step B: add binding agent and water in coal dust, mixes formation mixture, and makes the quality of cationic emulsified bitumen be 25% of quality of pc, and the quality of water is 5% of quality of pc.
Step C: fixing on the draw-in groove cylindrical lower plunger 8 being arranged on workbench, cylindrical upper plug 4 is fixed on the mold fixed plate 2 at top, and cylindrical mold 6 is placed on stripper plate 7, is loaded by mixture in mould, completes filler.
Step D: the switch on opening controller, open machine and computer 11, the control software design of start-up simulation machine 11 runs machine, hydraulic oil is sent into hydraulic cylinder 9 by oil circuit 10 by hydraulic pump 14, and hydraulic cylinder 9 starts pressurization, and workbench rises along support post 3, pressure is forced into 138MPa with the speed of 20kN/min, pressurize 5min again, finally with the speed pressure release of 10kN/min to pressure for 0, formed cylinder briquette 5.
Step e: after pressure release terminates, the control software design hydraulic control forming machine lifting stripper plate 7 of computer 11, lift cylindrical mold 6, cylindrical upper plug 4 and cylindrical lower plunger 8 maintain static, expose the rear stop solution pressing molding device of cylinder briquette 5, take out cylinder briquette 5, complete the demoulding, the cylinder briquette 5 obtained can be placed in hydraulic pipe to be carried.
In this example, the internal diameter of cylindrical mold 6 is 500mm, and the diameter of upper lower plunger is 500mm.The basal diameter of the cylinder briquette 5 be pressed into is 500mm, is highly 500mm; And cylinder briquette 5 water absorption rate in transportation is 8.71%, wear rate is 3.83%, has good water proofing property and wearability.
In the embody rule of actual phase flow pipeline hydraulic transportation, can realize in the following manner:
Hydraulic forming device described in the utility model is placed in the front portion of Hydraulic transportation pipeline injection device.Cylindrical mold 6, cylindrical upper plug 4, cylindrical lower plunger 8 are installed on the workbench of hydraulic forming device.Place conveyer belt between hydraulic forming device and pipeline injection device, cylinder briquette 5 is placed on conveyer belt after taking out and sends into pipeline injection device.Complete and once suppress, after taking out cylinder briquette 5, just can carry out second time compacting.Because pressing process is controlled by computer 11 completely, decrease manual operation, in addition, because moulded coal post pressing process is shorter, a large amount of production can be competent at.
Binding agent described in the utility model also can select tar binding agent, emulsified orinoco crude oil etc., is commercially produced product.Certainly, user also can make by oneself as required, and its preparation method, because belonging to the binding agent preparation field of pulverized coal forming, does not belong to content involved by the utility model, therefore repeats no more.
Finally, it should be noted that above what enumerate is only specific embodiment of the utility model.Obviously, the utility model is not limited to above embodiment, can also have a lot of distortion.All distortion that those of ordinary skill in the art can directly derive or associate from content disclosed in the utility model, all should think protection domain of the present utility model.
Claims (7)
1., for suppressing a hydraulic forming device for moulded coal, mould can be utilized to suppress moulded coal, and it is characterized in that, described hydraulic forming device comprises hydraulic press main body, hydraulic pump, fuel tank, Computer Control Unit and oil pipe;
Described hydraulic press main body comprises hydraulic cylinder, workbench, hydraulic press top board and support post; Described hydraulic cylinder is arranged on the bottom of hydraulic press main body, and workbench is arranged on hydraulic cylinder top and contacts with each other with the cylinder cap of hydraulic cylinder, and hydraulic cylinder can utilize cylinder cap to provide the pressure needed for moulding process to workbench, and mobile working platform; Described support post passes bottom and the hydraulic press top board of workbench connecting fluid cylinder pressure, for supporting whole hydraulic press main body;
The downside of described hydraulic press top board has been bolted mold fixed plate, workbench is provided with draw-in groove and stripper plate, mold fixed plate and draw-in groove can be utilized to be fixed on workbench by mould, stripper plate can move up and down under the effect of hydraulic cylinder, completes the demoulding for utilizing stripper plate lifting mould;
Described hydraulic pump is connected with the hydraulic cylinder in hydraulic press main body by oil pipe, and described fuel tank is connected with hydraulic pump, and fuel tank is used for depositing hydraulic oil; Hydraulic oil pump in fuel tank can be given hydraulic cylinder by hydraulic pump, and the piston of hydraulic cylinder can move upward under the promotion of hydraulic oil, and then the cylinder cap platform that pushes the work forward moves upward, and realizes pressurization; Hydraulic pump can extract hydraulic oil backflow, and piston declines, and then cylinder cap and workbench also move downward, and realize pressure release;
Described Computer Control Unit comprises computer and control device; Computer is provided with Survey control module, for pressing process and the optimum configurations of hydraulic control owner body; Described control device comprises switch and USB interface, and switch is for controlling opening and closing hydraulic forming device, and USB interface is used for computer to access hydraulic forming device.
2. hydraulic forming device according to claim 1, is characterized in that, described Survey control module adopts the measurement control software of conventional omnipotent servo hydraulic machine.
3. hydraulic forming device according to claim 1, is characterized in that, described hydraulic forming device also comprises mould, and mould comprises cylindrical mold, cylindrical upper plug and cylindrical lower plunger, for auxiliary compacting cylinder briquette; Described cylindrical upper plug is for being fixed on the downside of mold fixed plate, and cylindrical lower plunger is for being arranged in the draw-in groove of workbench, and cylindrical mold is for being fixed on stripper plate; Stripper plate after pressure release, can utilize the promotion lifting cylindrical mold of hydraulic cylinder, realizes the demoulding.
4. hydraulic forming device according to claim 3, is characterized in that, the diameter of the internal diameter of described cylindrical mold, the diameter of cylindrical upper plug, cylindrical lower plunger, all identical with the basal diameter of the cylinder briquette of required compacting.
5. hydraulic forming device according to claim 3, is characterized in that, the inner surface of described cylindrical mold is coated with chromium.
6. hydraulic forming device according to claim 5, is characterized in that, the mould that described mould adopts stainless steel to make.
7. the hydraulic forming device according to claim 1 to 6 any one, is characterized in that, the output pressure of described hydraulic forming device is more than 138MPa.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104875417A (en) * | 2015-05-05 | 2015-09-02 | 浙江大学 | Hydraulic forming device used for compacting coal and control method thereof |
| CN105136583A (en) * | 2015-10-10 | 2015-12-09 | 辽宁工程技术大学 | Briquette coal manufacturing process pore fracture evolution testing device |
| CN106313612A (en) * | 2016-06-02 | 2017-01-11 | 河南理工大学 | Briquette coal pressing device |
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2015
- 2015-05-05 CN CN201520286101.XU patent/CN204622658U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104875417A (en) * | 2015-05-05 | 2015-09-02 | 浙江大学 | Hydraulic forming device used for compacting coal and control method thereof |
| CN105136583A (en) * | 2015-10-10 | 2015-12-09 | 辽宁工程技术大学 | Briquette coal manufacturing process pore fracture evolution testing device |
| CN105136583B (en) * | 2015-10-10 | 2018-10-30 | 辽宁工程技术大学 | A kind of moulded coal manufacturing process hole crack evolution experimental rig |
| CN106313612A (en) * | 2016-06-02 | 2017-01-11 | 河南理工大学 | Briquette coal pressing device |
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