CN102286894A - Constant quantity and pressure beating method and device of disk mill - Google Patents
Constant quantity and pressure beating method and device of disk mill Download PDFInfo
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- CN102286894A CN102286894A CN2011102930317A CN201110293031A CN102286894A CN 102286894 A CN102286894 A CN 102286894A CN 2011102930317 A CN2011102930317 A CN 2011102930317A CN 201110293031 A CN201110293031 A CN 201110293031A CN 102286894 A CN102286894 A CN 102286894A
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Abstract
The invention relates to the papermaking field, in particular to a constant quantity and pressure beating method and device of a disk mill. The device comprises a pulp inlet header pipe, a mixer, a disk milling pulp inlet pipe, a disk mill, a disk milling pulp outlet pipe and a control valve, wherein the pulp inlet header pipe is connected with the mixer; the mixer is connected with the disk mill by the disk milling pulp inlet pipe; the disk milling pulp outlet pipe is connected with the disk mill; the control valve is arranged on the disk milling pulp outlet pipe; the disk milling pulp outlet pipe is connected with a return pipe; and the tail end of the return pipe is connected with the mixer. The method and the device have the following beneficial effects: the pulp conveying flow and pressure of a tandem disk mill beating system are steady; the tandem beating effect of the disk mill is effectively improved; the specific beating pressure is effectively reduced; the service lives of the mill teeth are greatly prolonged; the beating energy consumption is reduced; the beating quality is improved; and the papermaking performance and finished paper quality are improved.
Description
Technical field
The present invention relates to a kind of field of papermaking, relate in particular to a kind of disc mill constant level pressure methods of beating and device.
Background technology
Disc mill claims multigraph press or disc pulping machine again, is a kind of continuous beating equipment in the paper industry, comprises that cast iron casing and a pair of or three surfaces are carved with the metal of knife mark or the disk of grinding stone.Slurry relies on gravity or pressure to enter between disk, is subjected to the friction of rotary disk, the making beating effect of rubbing stone roller with the hands, and is discharged around mill by centrifugal force, can several series connection use.Existing low consistency pulping mode is the determining deviation making beating, relies on to regulate intensity and the quality that the making beating effect is regulated in the gap between the abrasive disc; And existing middle and high consistency pulping mode is the constant voltage making beating, and in pulping process, mill district pressure keeps constant according to setting value, and making beating intensity is controlled by the size of mill district pressure.Because the existence of mill series connection beating process process, because the gentle plasticity of fiber changes, and cause pressure, the flow of pulp layer between each mill, the pulsation of thickness in the slurry beating process, all can the quality of product be impacted.Therefore, control panel grinding machine mill district pressure stability has crucial meaning to guaranteeing the stable of disc mill refining pulp quality with energy savings.
Chinese invention patent application (application number: 200910192224.6 applyings date: 2009-09-11) disclose the voltage stabilization and current stabilization device that is used for the medium consistency refining charging, this device with in the feed end of dense disc mill be connected, comprise be connected in dense pump and buffer, the entrance point of buffer by pipeline with in dense pump be connected, the port of export of buffer by pipeline with in dense disc mill be connected; The described buffer entrance point and the port of export be respectively equipped be used to control pulp flow advance to starch control valve and pulp control valve.
Chinese invention patent application (application number: 200910036721.7 applyings date: 2009-01-16) disclose disc mill constant level pressure methods of beating and device thereof, this method is in pulping process, keep centrifugal stock pump to supply slurry by the constant current constant voltage device according to setting value constant constant voltage, plant according to different slurries simultaneously, set beating pressure by the pressure of adjustment disk grinding machine hydraulic system pressure regulator valve and realize.This device comprises vertical stock tank, slurry supply pump, constant current constant voltage device and disc mill, its slurry supply pump is centrifugal stock pump of ACP type or MCP type middle underflow pump, the constant current constant voltage device has overflow-type constant current constant voltage device and air-cushion type constant current constant voltage device, slurry supply pump is connected with the constant current constant voltage device by flow inlet, wherein overflow-type constant current constant voltage device has return duct to be connected with vertical stock tank, and the constant current constant voltage device is connected with the disc mill import by flow inlet.
Chinese invention patent application (application number: 03126695.9 applying date: 2003-05-28) disclose Disc Grinder Isopiestic Pressure Pulping Method And Device and be specially in pulping process, mill district pressure keeps constant according to setting value, and making beating intensity is by the size control of mill district pressure; A kind of disc mill constant voltage beating apparatus, comprise Moving plate, quiet dish, main shaft, hydraulic cylinder, piston, thrust tube, Pressure control member, piston is installed in the hydraulic cylinder and positioning sleeve is connected on outside the thrust tube, and thrust tube positioning sleeve is connected on outside the main shaft and with the Pressure control member and is connected.
Summary of the invention
For control panel grinding machine mill district pressure stability, an object of the present invention is to provide a kind of disc mill constant level pressure methods of beating, another object of the present invention provides a kind of disc mill constant level pressure beating apparatus.The present invention makes tandem mill refining system paper pulp feed flow and pressure steady, effectively improves disc mill series connection beating results, has effectively fallen at the end big slurry specific pressure, prolonged the service life of mill roll flute greatly, reduce beating energy consumption, improve refining pulp quality, improve papermaking properties and quality of finished paper.This contrive equipment has that to form member few, and assembling is simple, and it is convenient to implement, and adaptability is advantage preferably.
In order to realize above-mentioned first purpose, the present invention has adopted following technical scheme:
Disc mill constant level pressure methods of beating, the part slurry that this method is pulled an oar mill in the conveyance conduit after the beating turns back to the mill import by reflux, mixes that former slurry is laggard goes into the mill beating.
As preferably, the former slurry of above-mentioned mixing carries out in blender.
In order to realize above-mentioned second purpose, the present invention has adopted following technical scheme:
The device of disc mill constant level pressure making beating, this device comprises into slurry house steward, blender, mill pulp-inlet pipe, disc mill, mill grout outlet and control valve, advancing to starch house steward is connected with blender, blender is connected with disc mill by the mill pulp-inlet pipe, the mill grout outlet is connected on the disc mill, control valve is arranged on the mill grout outlet, is connected with return duct on the mill grout outlet, and the end of return duct is connected to blender.
As further improvement, above-mentioned return duct is arranged on the front end of control valve, and return duct is connected with the bottom of described blender, and return duct is provided with control valve.
As further improvement, above-mentioned mill pulp-inlet pipe is made of two arms, and two mill pulp-inlet pipe arms are separately positioned on the sidepiece top of blender, and are connected to described disc mill respectively.
The present invention is by dish circulation making beating method of feeding, with pull an oar part slurry in the conveyance conduit after the beating of mill, turns back to the mill import by reflux.The return line import is arranged on the mill exit and the blender bottom links, utilize mill grout outlet pressure, the backflow slurry is mixed with the slurry that advances to starch house steward, two arms are arranged at blender top, be connected with disc mill, mixed slurry enters the mill beating.Between return duct and blender, control valve is housed, control backflow of slurry amount.The present invention has effectively regulated the existence of mill series connection beating process process, because of plasticity changes because fiber softens in the slurry beating process, and cause the pressure of pulp layer between each mill, flow, the pulsation of thickness, make and keep the constant of mill district pressure in the pulping process, guarantee that every mill all can work under a metastable flow and pressure, make tandem mill refining system paper pulp feed flow and pressure steady, effectively improve disc mill series connection beating results, big slurry specific pressure has effectively been fallen at the end, prolonged the service life of mill roll flute greatly, reduce beating energy consumption, improve refining pulp quality, improve papermaking properties and quality of finished paper.This invention has that to form member few, and assembling is simple, and it is convenient to implement, and adaptability is advantage preferably.
Description of drawings
Fig. 1 is the structural representation of apparatus of the present invention.
The specific embodiment
Below in conjunction with accompanying drawing the specific embodiment of the present invention is made a detailed explanation.
The device of disc mill constant level pressure making beating as shown in Figure 1, this device comprises into slurry house steward 1, blender 2, mill pulp-inlet pipe 3, disc mill 4, mill grout outlet 5 and control valve 6, advancing to starch house steward 1 is connected with blender 2, blender 2 is connected with disc mill 4 by mill pulp-inlet pipe 3, mill pulp-inlet pipe 3 is made of two arms, two mill pulp-inlet pipe 3 arms are separately positioned on the sidepiece top of blender 2, and be connected to described disc mill 4 respectively, mill grout outlet 5 is connected on the disc mill 4, control valve 6 is arranged on the mill grout outlet 5, be connected with return duct 7 on the mill grout outlet 5, return duct 7 is arranged on the front end of control valve 6, return duct 7 is connected with the bottom of described blender 2, and return duct 7 is provided with control valve 8.
The present invention turns back to blender 2 with pull an oar part slurry in the conveyance conduit after the beating of mill by return duct 7.Utilize mill grout outlet pressure, the backflow slurry is mixed with the slurry that advances to starch house steward 1, mixed slurry enters the mill beating.At return duct and 2 in blender control valve 8 is housed, control backflow of slurry amount.
Claims (5)
1. disc mill constant level pressure methods of beating is characterized in that: the part slurry that this method is pulled an oar mill in the conveyance conduit after the beating turns back to the mill import by reflux, mixes that former slurry is laggard goes into the mill beating.
2. disc mill constant level pressure methods of beating according to claim 1 is characterized in that: mix former slurry and carry out in blender.
3. the device of disc mill constant level pressure making beating, this device comprises into slurry house steward, blender, mill pulp-inlet pipe, disc mill, mill grout outlet and control valve, the slurry house steward is connected with blender, blender is connected with disc mill by the mill pulp-inlet pipe, the mill grout outlet is connected on the disc mill, control valve is arranged on the mill grout outlet, it is characterized in that: be connected with return duct on the mill grout outlet, the end of return duct is connected to blender.
4. the device of disc mill constant level pressure making beating according to claim 3, it is characterized in that: return duct is arranged on the front end of control valve, and return duct is connected with the bottom of described blender, and return duct is provided with control valve.
5. according to the device of claim 3 or 4 described disc mill constant level pressure making beating, it is characterized in that: the mill pulp-inlet pipe is made of two arms, and two mill pulp-inlet pipe arms are separately positioned on the sidepiece top of blender, and are connected to described disc mill respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102930317A CN102286894A (en) | 2011-09-30 | 2011-09-30 | Constant quantity and pressure beating method and device of disk mill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102930317A CN102286894A (en) | 2011-09-30 | 2011-09-30 | Constant quantity and pressure beating method and device of disk mill |
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| CN102286894A true CN102286894A (en) | 2011-12-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2011102930317A Pending CN102286894A (en) | 2011-09-30 | 2011-09-30 | Constant quantity and pressure beating method and device of disk mill |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106368037A (en) * | 2016-11-28 | 2017-02-01 | 芬欧汇川(中国)有限公司 | Pulping machine and long fiber beating degree control method and system thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3910505A (en) * | 1973-04-27 | 1975-10-07 | Rolf Bertil Reinhall | Method of producing fiber pulp from vegetable of fibrous material |
| CN201400823Y (en) * | 2009-01-16 | 2010-02-10 | 华南理工大学 | Constant-amount and constant-voltage beating apparatus of disk grinder |
| CN201553943U (en) * | 2009-07-15 | 2010-08-18 | 华南理工大学 | Chambered two-way mode circulating pulp grinding device |
| CN202247511U (en) * | 2011-09-30 | 2012-05-30 | 浙江凯丰纸业有限公司 | Constant-quantity and constant-pressure pulp beating device of disc grinder |
-
2011
- 2011-09-30 CN CN2011102930317A patent/CN102286894A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3910505A (en) * | 1973-04-27 | 1975-10-07 | Rolf Bertil Reinhall | Method of producing fiber pulp from vegetable of fibrous material |
| CN201400823Y (en) * | 2009-01-16 | 2010-02-10 | 华南理工大学 | Constant-amount and constant-voltage beating apparatus of disk grinder |
| CN201553943U (en) * | 2009-07-15 | 2010-08-18 | 华南理工大学 | Chambered two-way mode circulating pulp grinding device |
| CN202247511U (en) * | 2011-09-30 | 2012-05-30 | 浙江凯丰纸业有限公司 | Constant-quantity and constant-pressure pulp beating device of disc grinder |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106368037A (en) * | 2016-11-28 | 2017-02-01 | 芬欧汇川(中国)有限公司 | Pulping machine and long fiber beating degree control method and system thereof |
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Application publication date: 20111221 |