CN109648910A - It is a kind of for improving the slot device that gathers materials of powder pressure ball molding intensity - Google Patents
It is a kind of for improving the slot device that gathers materials of powder pressure ball molding intensity Download PDFInfo
- Publication number
- CN109648910A CN109648910A CN201910088140.1A CN201910088140A CN109648910A CN 109648910 A CN109648910 A CN 109648910A CN 201910088140 A CN201910088140 A CN 201910088140A CN 109648910 A CN109648910 A CN 109648910A
- Authority
- CN
- China
- Prior art keywords
- collecting tank
- pressure roller
- hopper
- material collecting
- powder
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B11/00—Presses specially adapted for forming shaped articles from material in particulate or plastic state, e.g. briquetting presses, tabletting presses
- B30B11/16—Presses specially adapted for forming shaped articles from material in particulate or plastic state, e.g. briquetting presses, tabletting presses using pocketed rollers, e.g. two co-operating pocketed rollers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
- B30B15/30—Feeding material to presses
- B30B15/302—Feeding material in particulate or plastic state to moulding presses
- B30B15/308—Feeding material in particulate or plastic state to moulding presses in a continuous manner, e.g. for roller presses, screw extrusion presses
Abstract
It the invention belongs to powder pressure ball technical field, discloses a kind of for improving the slot device that gathers materials of powder pressure ball molding intensity, further includes two pressure rollers including material collecting tank, hopper and the preload screw for conveying powder；The preload screw is mounted on the hopper, and the bottom end of the hopper is arranged in the material collecting tank, and gradually convergent tapered channel, the lower end outside of the material collecting tank are bonded with the pressure roller roll surface for the materials inside channel formation of the material collecting tank；The powder between the fixed pressure roller and the movable platen is set to compress balling-up and providing constant pressing force to movable platen.The application of the slot device that gathers materials of the invention will reduce the contact length and contact area of precommpression material Yu pressure roller roll surface, in the case where not increasing cylinder thrust, the average pressure of material and roll surface contact area is also significantly improved, and is finally suppressed the ball formation of lots intensity come and is also significantly improved.
Description
Technical field
The invention belongs to powder pressure ball technical fields, and in particular to a kind of for improving gathering materials for powder pressure ball molding intensity
Slot device.
Background technique
The present invention conceives the production process for suppressing balling-up or block after ball press from coal dust and pulverized limestone.Simultaneously
Compacting balling-up or other block materials applied to similar powder, granular material by ball press or similar ball press structure
Production process.
Existing ball press is directed to the coal dust and pulverized limestone pressure ball principle of the drying under the conditions of binder free are as follows: uses spiral shell
Mixed powder material after the precharge of rotation feed, pressurization is transported between two clip-on pressure rollers with ball-and-socket, and there are gear in pressure roller two sides
Plate closes the powder material after precompressed to keep pressure, and two rollers with ball-and-socket apply certain constant pressing force and opposite direction rotating is stung
Powder material after entering precompressed.Ball or ball block are formed after pressure roller is suppressed.Existing ball press will suppress the ball of qualified intensity
Block needs to apply very big pressure roller power to press-roller device, require high, excessive pressure roller power to the bearing of pressure roller housing rigidity and
There is damage in pressure roller of cure process service life itself.After taper feed hopper fills powder, conical blanking screw mechanism rotation, powder
The compression of shape material is moved downward to two opposite direction rotatings of dry powder ball press along cylinder-shaped hopper and surface is machined with ball-and-socket
Pressure roller junction, powder are pressed into oblate spheroid shape, pressure roller continuous rotation, and ball base is from following abjection.
As shown in figs. 1 and 6, the feeding system of existing ball press is by hopper, hopper and installation and hopper
Preload screw mechanism is formed.After hopper fills powder, preload screw mechanism rotate and conveys material, granular material compression along
Hopper inner passage is delivered to two opposite direction rotatings of ball press and surface is machined on the pressure roller roll surface of ball-and-socket, after precompressed
The pressure roller roll surface that powder is rotated bites and is further pressurizeed by it.Pressure roller continuous rotation, ball block fall off between two roller gaps.By
It is welding structure in existing ball press hopper, hopper interior design has the cylindrical channel with preload screw cooperation, by
In reasons in structure, hopper and two sides pressure roller will inevitably form the cavity area of a biggish triangle.And it deposits
It is that the material in the triangular cavity region can generate following influence: since the interior material in the region is the object after precommpression
Material itself has certain intensity, and the normal pressure of material and roll surface contact and the thrust of oil cylinder in the region are substantial equilibriums
Equal, in the case where cylinder thrust is constant, projected area is bigger in the vertical direction in the region, and material can reach flat
Equal pressure can smaller, and smaller smaller, the intensity deficiency that will will lead to ball bulk strength after molding of pressure ball；Due to the object after precommpression
Material has the contact area of some strength and roll surface bigger, will be stronger to the friction effect of roll surface, and friction effect gets over Qiang Zehui
Lead to the reduction of mechanical efficiency.
Summary of the invention
In order to solve the above problems existing in the present technology, it is an object of that present invention to provide one kind for improving powder pressure ball
The slot device that gathers materials of shaping strength can effectively improve compacting in the not increased situation of ball press pressure roller power using the device
Ball bulk strength, or in the case where guaranteeing that balling-up intensity is inconvenient, the appropriate pressing force for reducing pressure roller can also reduce accordingly
The power of pressure roller driving.
The technical scheme adopted by the invention is as follows:
A kind of slot device that gathers materials for improving powder pressure ball molding intensity includes material collecting tank, hopper and conveying powder
Preload screw further includes that two pressure rollers rotated towards each other are driven by speed reducer, is carved on the roll surface of the pressure roller multiple equal
The arc ball-and-socket of even arrangement；
The preload screw is mounted on the hopper, and the bottom end of the hopper is arranged in the material collecting tank, described
The materials inside channel of material collecting tank forms gradually convergent tapered channel, the lower end outside of the material collecting tank and the pressure roller roll surface
Fitting, the material collecting tank is in the delta-shaped region between the hopper and two pressure rollers；
One of pressure roller of two pressure rollers is fixed pressure roller, another pressure roller is movable platen, by giving movable platen
Constant pressing force is provided and makes to compress balling-up by precompressed material between the fixed pressure roller and the movable platen.
Further, the angle of the bottom face of the bevel edge of the shaft section of the material collecting tank and the hopper is 40-50 degree.
Further, the angle of the bottom face of the bevel edge of the shaft section of the material collecting tank and the hopper is 45 degree.
Further, the height of the material collecting tank be less than the spacing of the hopper and the two pressure roller lines of centres two/
One.
Further, the height of the material collecting tank be greater than the spacing of the hopper and the two pressure roller lines of centres three/
One.
Further, constant pressing force, the bearing block of the movable platen and institute are provided to movable platen by oil cylinder group
It states and is equipped with limited block between the bearing block of fixed pressure roller, the oil cylinder group pushes the movable platen towards the limited block position
It moves.
Further, the material collecting tank is removably disposed in the bottom end of the hopper.
The invention has the benefit that
(1) application of the slot device that gathers materials of the invention will reduce precommpression material and the contact height of pressure roller roll surface and contact
Area, in the constant situation of cylinder thrust, the average pressure of material and roll surface contact area is also significantly improved, and is finally pressed
It produces the shaping strength of ball block come also to significantly improve, the slot device that gathers materials of the invention is by the material after reducing precommpression and pressure
The contact area of roller roll surface, thus reduce the friction effect of material and roll surface, so that the torque of driving pressure roller work is slightly reduced,
Gradually convergent tapered channel can reduce the mutation in the section of precommpression material channel, be conducive to precommpression object inside material collecting tank
Expect the holding of intensity and the raising of most end bulb bulk strength.
(2) material after material collecting tank and precommpression has apparent friction, is designed as detachable structure, convenient for after abrasion more
It changes.
Detailed description of the invention
Fig. 1 is the basic block diagram of existing ball press.
Fig. 2 is structural schematic diagram of the invention.
Fig. 3 is the enlarged drawing at the I of Fig. 2.
Fig. 4 is the partial enlargement diagram of Fig. 2.
Fig. 5 is the top view of oil cylinder of the invention.
Fig. 6 is the top view of the oil cylinder of Fig. 1.
In figure: 1- material collecting tank；2- preload screw；3- pressure roller；301- side baffle；The outer circle of 302- pressure roller；The fixed pressure of 303-
The bearing block of roller；The bearing block of 304- movable platen；4- hopper；5- tapered channel；6- oil cylinder；7- limited block；8- triangle
Cavity.
Specific embodiment
With reference to the accompanying drawing and specific embodiment does further explaination to the present invention.
Embodiment 1:
The basic structure of existing ball press as shown in Figure 1, by conveying powdery material preload screw, preload screw is mounted on
In hopper, the two pressure roller opposite direction rotatings driven by the double output shaft and shaft coupling of speed reducer, wherein the one of two pressure rollers
A pressure roller is fixed pressure roller, and it further includes acting in movable platen to provide constant pressing force that another pressure roller, which is movable platen,
Oil cylinder group makes the process between the fixed pressure roller and the movable platen pre- and providing constant pressing force to movable platen
The material of compression compresses balling-up, after the hopper on preload screw top fills powder, preload screw rotation, by powder carry to pressure
Two opposite direction rotatings of ball machine and surface is machined between the pressure roller roll gap of ball-and-socket, the material after precompressed is bitten by pressure roller to be continued to pressurize
It is pressed balling-up block.
The slot device that gathers materials that the present embodiment provides a kind of for improving powder pressure ball molding intensity is as shown in Figures 2 and 4, including
The preload screw 2 of material collecting tank 1 and conveying powder further includes driving two pressure rollers 3 rotated towards each other, the pressure by speed reducer
Multiple arc ball-and-sockets being evenly arranged are carved on the roll surface of roller, the powder convenient for being bitten is pressed into ball block.
The preload screw is mounted on hopper 4, and the bottom end of the hopper is arranged in the material collecting tank, described to gather materials
The materials inside channel of slot forms gradually convergent tapered channel 5, and the material channel inside material collecting tank is designed to gradually convergent
Taper advantageously reduces the contact height and contact area of precommpression material Yu pressure roller roll surface.
Increase is gathered materials after slot device, and material and pressure roller after precommpression will significantly reduce one section and pressure in the vertical direction
The length of roller roll surface contact, material collecting tank are described to gather materials using wear-resistant material cure process due to bearing compressing and rubbing against for material
Slot is removably disposed in the bottom end of the hopper, is designed to replaceable structure, convenient for the disassembly and replacement of material collecting tank.Gather materials
Material channel inside slot is designed to gradually convergent tapered channel；The face area of the hopper outlet end is preferably more than
The face area of the tapered channel arrival end, it is logical that the end face of the material collecting tank arrival end should be able to cover the hopper outlet
Road section, the material decompression after avoiding the abrupt change of cross-section from causing precompressed.
The material collecting tank is in the delta-shaped region between the hopper and two pressure rollers, the two sides of the material collecting tank
One piece of side baffle 301 is respectively housed, material collecting tank, two pressure rollers, two pieces of side plate washers are enclosed the triangle of a closing material jointly
Cavity 8, the lower end of material collecting tank are slightly restrained towards its inside, and basic and roll surface is close to tangent, the lower end outside of the material collecting tank
It keeps fitting to contact with the outer circle 302 of the pressure roller, is reserved between the lower end outside of material collecting tank and the outer circle of pressure roller relatively narrow, suitable
Guarantee the sealing function (as shown in Figure 3) of compressed material when the gap (gap belongs to allowance control property) of length；Two pieces
Side baffle, two pressure rollers and material collecting tank realize together between two pressure rollers by the sealing of compressed material.The inside of material collecting tank is logical
Finishing is done on the inside of the outlet end in road and keeps symmetrical, so that material is uniformly delivered to pressure roller roll surface.
The application of apparatus of the present invention material collecting tank, making the decline of the material discharge port after precommpression certain altitude, (powder goes out
The height of material mouth decline is A, and the contact length of the material of existing ball press shown in FIG. 1 in the vertical direction is H), thus
Compressed material is obviously reduced in the projected area of vertical direction with pressure roller roll surface, material and pressure roller roll surface contact area subtract
After small, in the case where cylinder thrust effect is constant, after material and the reduction of pressure roller roll surface contact area, material connects with roll surface residue
The average pressure in touching region will significantly improve, thus guarantee that finally suppressing the ball formation of lots intensity come also significantly improves, due to
The buffer action of material collecting tank reduces the contact length of material and pressure roller roll surface, the friction effect between compressed material and roll surface
It should will reduce, the driving torque of pressure roller is driven also will slightly to reduce.
The angle of the bottom face of the bevel edge of the shaft section of the material collecting tank and the hopper is 40-50 degree, is designed to one
The angle of the bottom face of fixed convergence taper, the bevel edge of the shaft section of the material collecting tank and the hopper is preferably 45 degree, more
The mutation in the material section avoid precommpression with changing after, the ball formation of lots intensity suppressed is preferable, and suppresses the ball block come
It is more preferable at circle.
The height of the material collecting tank is less than the half of the spacing of the hopper and the two pressure roller lines of centres, makes powder
Discharge port decline certain altitude, the contact length of material and pressure roller roll surface can be effectively reduced, material and roll surface contact area
Average pressure be also significantly improved, finally suppress come ball formation of lots intensity also significantly improve.
The height of the material collecting tank is greater than the one third of the spacing of the hopper and the two pressure roller lines of centres, can keep
Certain convergence taper.
As shown in figure 5, providing constant pressing force, the bearing block 304 of the movable platen to movable platen by oil cylinder group
And limited block is equipped between the bearing block 303 of the fixed pressure roller, the limited block is mounted on the bearing block of the fixed pressure roller
On, the oil cylinder group pushes the movable platen to be displaced towards the limited block.Oil cylinder group includes two oil cylinders 6, accordingly, limit
Position block 7 is also there are two (thickness of limited block is adjustable, to adjust the gap of fixed pressure roller and movable platen as needed), and two
The two sides of the movable platen are arranged in a oil cylinder.By oil cylinder pushing movable platen adjust movable platen and fixed pressure roller it
Between spacing to adjust powder pressing force between fixed pressure roller and movable platen.
The effect of the slot device that gathers materials of the invention is that compacting can be significantly improved in the case where not increasing cylinder thrust
The intensity of ball block out, and slightly reduce the torque of driving pressure roller work；Or it is wanted guaranteeing that the ball bulk strength suppressed meets
In the case where asking, the pressure roller power of oil cylinder is reduced, the reduction of pressure roller power will reduce the load of main driving, existing machine after pressure roller power reduces
Frame just has bigger rigidity deposit, and rack can reduce sectional dimension in the case where guaranteeing safe and reliable, reduce rack
Steel using amount, lower oil cylinder pressure roller power will also increase the useful working life of bearing, increase the service life etc. of pressure roller working face, comprehensive
Benefit is evident.
The present invention is not limited to above-mentioned optional embodiment, anyone can show that other are each under the inspiration of the present invention
The product of kind form.Above-mentioned specific embodiment should not be understood the limitation of pairs of protection scope of the present invention, protection of the invention
Range should be subject to be defined in claims, and specification can be used for interpreting the claims.
Claims (7)
1. a kind of for improving the slot device that gathers materials of powder pressure ball molding intensity, it is characterised in that: including material collecting tank, hopper and
The preload screw for conveying powder further includes that two pressure rollers rotated towards each other are driven by speed reducer, on the roll surface of the pressure roller
It is carved with multiple arc ball-and-sockets being evenly arranged；
The preload screw is mounted on the hopper, and the bottom end of the hopper is arranged in the material collecting tank, described to gather materials
The materials inside channel of slot forms gradually convergent tapered channel, and the lower end outside of the material collecting tank and the pressure roller roll surface paste
It closes, the material collecting tank is in the delta-shaped region between the hopper and two pressure rollers；
One of pressure roller of two pressure rollers is fixed pressure roller, another pressure roller is movable platen, by providing to movable platen
Constant pressing force and make between the fixed pressure roller and the movable platen by precompressed material compress balling-up.
2. according to claim 1 for improving the slot device that gathers materials of powder pressure ball molding intensity, it is characterised in that: described
The angle of the bottom face of the bevel edge of the shaft section of material collecting tank and the hopper is 40-50 degree.
3. according to claim 2 for improving the slot device that gathers materials of powder pressure ball molding intensity, it is characterised in that: described
The angle of the bottom face of the bevel edge of the shaft section of material collecting tank and the hopper is 45 degree.
4. according to claim 3 for improving the slot device that gathers materials of powder pressure ball molding intensity, it is characterised in that: described
The height of material collecting tank is less than the half of the spacing of the hopper and the two pressure roller lines of centres.
5. according to claim 4 for improving the slot device that gathers materials of powder pressure ball molding intensity, it is characterised in that: described
The height of material collecting tank is greater than the one third of the spacing of the hopper and the two pressure roller lines of centres.
6. according to claim 5 for improving the slot device that gathers materials of powder pressure ball molding intensity, it is characterised in that: pass through
Oil cylinder group provides constant pressing force to movable platen, between the bearing block of the movable platen and the bearing block of the fixed pressure roller
Equipped with limited block, the oil cylinder group pushes the movable platen to be displaced towards the limited block.
7. according to claim 1-6 for improving the slot device that gathers materials of powder pressure ball molding intensity, feature
Be: the material collecting tank is removably disposed in the bottom end of the hopper.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910088140.1A CN109648910B (en) | 2019-01-29 | 2019-01-29 | A material collecting groove device for improving powder ball pressing forming strength |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910088140.1A CN109648910B (en) | 2019-01-29 | 2019-01-29 | A material collecting groove device for improving powder ball pressing forming strength |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109648910A true CN109648910A (en) | 2019-04-19 |
| CN109648910B CN109648910B (en) | 2021-01-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910088140.1A Active CN109648910B (en) | 2019-01-29 | 2019-01-29 | A material collecting groove device for improving powder ball pressing forming strength |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117601492B (en) * | 2023-12-05 | 2024-04-30 | 山东东源新材料科技有限公司 | Desulfurization and denitrification catalyst shaping equipment and shaping method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2523004A1 (en) * | 1974-05-23 | 1975-12-04 | Uss Eng & Consult | Briquette mfr. from hot reduced iron ore - using briquetting rolls under conditions which prevent briquettes sticking to rolls |
| AU2698577A (en) * | 1976-07-16 | 1979-01-18 | British Steel Corp. | Metal strip |
| US4769211A (en) * | 1985-02-27 | 1988-09-06 | Korf Engineering Gmbh | Process for compacting iron particles and subsequent breaking apart of the compacted iron band and apparatus for performing this process |
| JPH0443499U (en) * | 1990-08-20 | 1992-04-13 | ||
| CN201745206U (en) * | 2010-08-19 | 2011-02-16 | 刘家泽 | Material guide device for high-strength dry powder ball press |
-
2019
- 2019-01-29 CN CN201910088140.1A patent/CN109648910B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2523004A1 (en) * | 1974-05-23 | 1975-12-04 | Uss Eng & Consult | Briquette mfr. from hot reduced iron ore - using briquetting rolls under conditions which prevent briquettes sticking to rolls |
| AU2698577A (en) * | 1976-07-16 | 1979-01-18 | British Steel Corp. | Metal strip |
| US4769211A (en) * | 1985-02-27 | 1988-09-06 | Korf Engineering Gmbh | Process for compacting iron particles and subsequent breaking apart of the compacted iron band and apparatus for performing this process |
| JPH0443499U (en) * | 1990-08-20 | 1992-04-13 | ||
| CN201745206U (en) * | 2010-08-19 | 2011-02-16 | 刘家泽 | Material guide device for high-strength dry powder ball press |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117601492B (en) * | 2023-12-05 | 2024-04-30 | 山东东源新材料科技有限公司 | Desulfurization and denitrification catalyst shaping equipment and shaping method |
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| Publication number | Publication date |
|---|---|
| CN109648910B (en) | 2021-01-05 |
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