CN209910306U - Special drying system of graphite powder - Google Patents
Special drying system of graphite powder Download PDFInfo
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- CN209910306U CN209910306U CN201920054551.4U CN201920054551U CN209910306U CN 209910306 U CN209910306 U CN 209910306U CN 201920054551 U CN201920054551 U CN 201920054551U CN 209910306 U CN209910306 U CN 209910306U
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Abstract
The utility model discloses a special drying system for graphite powder, which relates to the technical field of powder drying equipment and comprises an inner tube type roller drying unit, a feeding unit, a drying smoke unit, a drying moisture unit and a discharging unit, wherein the inner tube type roller drying unit comprises an inner tube type roller dryer and a drying heat source; the feeding unit comprises a feeding conveyor communicated with the spiral conveyor; the flue gas drying unit comprises a flue gas tail gas treatment system and a flue gas induced draft fan; the moisture drying unit comprises a cyclone dust collector, a special graphite bag dust collector and a moisture induced draft fan; the discharging unit comprises a finished product screw conveyor and a product bin. The utility model discloses tail gas dustiness is too high when drying to graphite powder and is leaded to unable effectively processing's problem to design, changes original feeding and dust collection mode, accomplishes the totally enclosed operation, has solved traditional stoving in-process, and the unable recovery material loss scheduling problem that environmental pollution problem and exhaust gas evacuation were taken away.
Description
Technical Field
The utility model relates to a powder drying equipment technical field, in particular to special drying system of graphite powder.
Background
Graphite powder, especially ultrafine flaky graphite, generally has a powder particle size of 300-1200 meshes, and a finished product can be obtained only by a drying process after acid washing, neutralization and water washing processes in the production and processing process. The traditional drying modes generally comprise drying in a drying room, drying in an air-flow type dryer, drying in a direct-heating rotary kiln and the like, the drying mode in the drying room is labor-consuming and time-consuming when charging and discharging materials, and the materials are easy to cause pollution due to dust because the specific gravity of graphite powder is very light; the air flow type drying process of the dryer comprises the steps of uniformly mixing materials with high-temperature hot air by adopting a mixer, feeding the mixture into a drying pipeline, enabling the materials to pass through a plurality of pressure difference ends in the pipeline to complete moisture volatilization, and finally separating the materials from high-water-content tail gas by a dust removal system, wherein when the graphite materials are dried, a large amount of hot air (the general air-material mixing ratio is 7: 1) is needed to be proportioned to drive the materials to pass through the drying pipeline, the dust content of tail gas at the tail end is very high due to too large air quantity, the tail gas at the tail end simultaneously contains extremely high moisture (the general water content is 85-93 percent), and the pressure of the dust; the drying form of the direct-heating rotary kiln adopts a direct-heating high-temperature heat source (750-.
With the increasing environmental protection situation, the original drying process can not meet the production requirements at the present stage in the graphite drying process, and the problems of environmental pollution and the loss of unrecoverable materials brought away by exhaust gas evacuation in the drying process are always an industrial difficulty due to the extremely light specific gravity and the fine powder of graphite. The tail gas and dust treatment difficulty in the graphite drying process is high, the dust in the working environment is serious, and the smooth production is seriously influenced.
Disclosure of Invention
According to the not enough of above prior art, the utility model discloses the technical problem that will solve is: the utility model provides a special drying system of graphite powder designs to the too high problem that leads to unable effective processing of graphite powder tail gas dust content when drying, changes original feeding and dust collection mode, accomplishes the full-enclosed operation, solves traditional stoving in-process, and environmental pollution problem and the unable recovery material loss scheduling problem that the exhaust gas evacuation was taken away.
In order to solve the technical problem, the technical scheme of the utility model is that:
a special drying system for graphite powder comprises an inner tube type roller drying unit, a feeding unit, a flue gas drying unit, a moisture drying unit and a discharging unit, wherein the inner tube type roller drying unit comprises an inner tube type roller dryer and a drying heat source, a feeding device of the inner tube type roller dryer comprises a feeding pipe, a feeding port is arranged above one end of the feeding pipe, a flue gas air inlet pipe is arranged in the feeding pipe and sleeved inside the feeding pipe, the air inlet end of the flue gas air inlet pipe is communicated with the drying heat source, a feeding seal head is arranged at one end, close to the feeding port, of the feeding pipe, the flue gas air inlet pipe is rotatably connected with the feeding seal head, spiral pushing blades are arranged on the outer side of the flue gas air inlet pipe in the feeding pipe, and the other end of the feeding pipe is communicated with a dryer barrel, the feeding guide pipe and the flue gas air inlet pipe are deep into the drying machine barrel, a support frame is arranged outside the flue gas air inlet pipe in the drying machine barrel, the support frame is connected with the inner wall of the drying machine barrel, one end, close to the feeding hole, of the drying machine barrel is rotatably connected with a wet gas end socket, the outer wall of the feeding guide pipe is fixedly connected with the wet gas end socket, and a flue gas end socket is further arranged on the drying machine barrel;
the feeding unit comprises a feeding conveyor, the discharge end of the feeding conveyor is communicated with the feed end of a spiral conveyor, and the discharge end of the spiral conveyor is communicated with the feed inlet of the inner tubular roller dryer;
the drying flue gas unit comprises a flue gas tail gas treatment system, an air inlet of the flue gas tail gas treatment system is connected with a flue gas seal head of the inner-tube type drum dryer through a pipeline, an air outlet of the flue gas tail gas treatment system is communicated with an air inlet of a flue gas induced draft fan, and an air outlet of the flue gas induced draft fan is communicated with a flue gas chimney;
the wet gas drying unit comprises a cyclone dust collector, an air inlet of the cyclone dust collector is connected with a wet gas end socket of the inner tube type drum dryer through a pipeline, an ash outlet of the cyclone dust collector is communicated with a feed end of a dust recovery spiral conveyer, a discharge end of the dust recovery spiral conveyer is communicated with the spiral conveyer, an air outlet of the cyclone dust collector is connected with an air inlet of a graphite special bag-type dust collector through a pipeline, an air outlet of the graphite special bag-type dust collector is communicated with an air inlet of a wet gas induced draft fan, and an air outlet of the wet gas induced draft fan is communicated with a wet gas chimney;
the discharging unit comprises a finished product spiral conveyor, the feeding end of the finished product spiral conveyor is communicated with the discharging port of the inner tube type drum dryer, the discharging end of the finished product spiral conveyor is communicated with a product bin, and a bin top dust remover is arranged at the top end of the product bin.
As an improved scheme, the inner cylinder of the drying machine is uniformly provided with a flue gas inner pipe, the flue gas inner pipe is communicated with a flue gas air inlet pipe, and the flue gas inner pipe is arranged in the drying machine cylinder through an inner pipe fixing hoop.
As an improvement scheme, the flue gas inner tube is provided with a plurality of flue gas inner tubes.
As a modification, the cyclone is a CLK cyclone.
As an improvement scheme, a sealing cover is arranged at the joint of the feeding conveyor and the spiral conveyor.
After the technical scheme is adopted, the beneficial effects of the utility model are that:
the utility model relates to a special drying system for graphite powder, which comprises an inner tube type roller drying unit, a feeding unit, a flue gas drying unit, a moisture drying unit and a discharging unit, wherein the inner tube type roller drying unit comprises an inner tube type roller dryer and a drying heat source; the feeding unit comprises a feeding conveyor communicated with the spiral conveyor; the flue gas drying unit comprises a flue gas tail gas treatment system and a flue gas induced draft fan; the moisture drying unit comprises a cyclone dust collector, a special graphite bag dust collector and a moisture induced draft fan; the discharging unit comprises a finished product screw conveyor and a product bin. The utility model discloses adopted inner tube formula cylinder drying-machine on the project organization for flue gas and moisture separation form two sets of independent systems, in independent moisture system, the moisture volume only needs to consider the evaporation water yield of taking away the cylinder drying-machine, can reduce the amount of wind with the material contact, alleviate the cross-section wind speed with the material contact, simultaneously in moisture tail gas processing system middle section, increase CLK type cyclone group, can detach about 45% powder granule, guarantee that the tail gas dust content that finally gets into the special sack cleaner of graphite can reduce to can handle the concentration range, improve the treatment effect; in the aspect of system sealing design, a special conveying sealing cover is added, an open belt conveyor is changed into a sealed spiral conveyor, meanwhile, a dust recovery spiral conveyor is additionally arranged at a dust collecting port at the bottom of a CLK cyclone dust collector group, and collected dust is conveyed to a feeding spiral conveyor of a drum dryer again for returning and drying. The product ejection of compact process adopts finished product screw conveyer, and direct sealed transported substance material to the product feed bin forms sealed circulation process, has solved traditional stoving in-process, and the difficult problem of the unable recovered material loss that the exhaust gas evacuation was taken away from is solved to the environmental pollution problem.
Because the spiral pushing blade is arranged on the outer wall of the flue gas air inlet pipe of the feeding device of the inner-pipe type drum dryer, the flue gas air inlet pipe is driven to rotate by the rotation of the dryer cylinder body, the spiral pushing blade can push the materials entering from the feeding hole into the dryer cylinder body for drying, and a spiral conveyor is not required to be arranged independently; the spiral pushing blade is arranged on the outer side of the flue gas air inlet pipe and rotates by taking the flue gas air inlet pipe as a rotating shaft, the designable diameter range of the outer diameter of the spiral pushing blade is large, and the conveying requirements of different types of dryer cylinders on the maximum conveying capacity can be met by designing different screw pitches and blade outer diameters, so that the drying efficiency of the dryer is improved; in addition, as the spiral pushing blades are arranged on the outer side of the flue gas air inlet pipe, the spiral pushing blades are continuously contacted with the pipe wall of the flue gas air inlet pipe during cold material conveying, the spiral pushing blades have a preheating effect on materials, and can cool the flue gas air inlet pipe simultaneously, so that the service lives of the flue gas air inlet pipe and the flue gas inner pipe are prolonged.
To sum up, the utility model discloses drying form based on rotary kiln stoving technology designs, analyzes traditional rotary kiln stoving in-process, and the waste gas dust content is high, and the reason that can't thoroughly handle, and the internal tubular heating stoving principle of adoption changes original direct heating form and is indirect heating, greatly reduces tail gas treatment capacity, combines CLK cyclone to carry out the preliminary treatment simultaneously, makes the tail gas dust content who finally gets into special sack cleaner of graphite reduce to dust remover can handle concentration, reaches the purpose of discharge up to standard; meanwhile, the whole system improves the original feeding and discharging mode, in the whole drying process, the superior equipment and the subordinate equipment are all in sealed butt joint, and the problems of environmental pollution and incapability of recycling material loss brought away by waste gas emptying in the traditional drying process are solved.
Drawings
Fig. 1 is a schematic structural diagram of a special graphite powder drying system of the present invention;
fig. 2 is a schematic structural diagram of a feeding device of an inner tube type drum dryer in a graphite powder special drying system of the utility model;
the arrow direction in the figure is the moving direction of the drying materials;
in the figure: 1-inner tube type drum dryer, 2-feeding conveyor, 3-sealing cover, 4-screw conveyor, 5-dust recovery screw conveyor, 6-cyclone dust collector, 7-graphite special bag-type dust collector, 8-moisture chimney, 9-moisture induced draft fan, 10-drying heat source, 11-flue gas tail gas treatment system, 12-flue gas induced draft fan, 13-flue gas chimney, 14-finished product screw conveyor, 15-product bin, 16-bin top dust collector, 101-feeding guide pipe, 102-feeding inlet, 103-flue gas air inlet pipe, 104-feeding end enclosure, 105-spiral pushing blade, 106-dryer barrel, 107-supporting frame, 108-moisture end enclosure, 109-flue gas inner tube, 110-inner tube fixing hoop, and, 111-flue gas seal head, and 112-drying the materials.
Detailed Description
The invention is further explained below with reference to the drawings and examples.
As shown in fig. 1 and fig. 2, the utility model relates to a special drying system for graphite powder, which comprises an inner tube type roller drying unit, a feeding unit, a flue gas drying unit, a moisture drying unit and a discharging unit, wherein the inner tube type roller drying unit comprises an inner tube type roller dryer 1 and a drying heat source 10, a feeding device of the inner tube type roller dryer 1 comprises a feeding pipe 101, a feeding port 102 is arranged above one end of the feeding pipe 101, a flue gas inlet pipe 103 is arranged in the feeding pipe 101, the flue gas inlet pipe 103 is sleeved inside the feeding pipe 101, the air inlet end of the flue gas inlet pipe 103 is communicated with the drying heat source 10, a feeding end enclosure 104 is arranged at one end of the feeding pipe 101 close to the feeding port 102, the flue gas inlet pipe 103 is rotatably connected with the feeding end enclosure 104, a spiral pushing blade 105 is arranged outside the flue gas inlet pipe 103 in the feeding pipe 101, the other end of the feeding pipe 101 is, the feeding duct 101 and the flue gas inlet pipe 103 are deep into the dryer cylinder 106, a support frame 107 is arranged outside the flue gas inlet pipe 103 in the dryer cylinder 106, the support frame 107 is connected with the inner wall of the dryer cylinder 106, one end of the dryer cylinder 106 close to the feeding port 102 is rotatably connected with a wet gas seal head 108, the outer wall of the feeding duct 101 is fixedly connected with the wet gas seal head 108, and a flue gas seal head 111 is further arranged on the dryer cylinder 106;
the feeding unit comprises a feeding conveyor 2, the discharge end of the feeding conveyor 2 is communicated with the feed end of a spiral conveyor 4, and the discharge end of the spiral conveyor 4 is communicated with the feed inlet 102 of the inner tubular roller dryer 1;
the flue gas drying unit comprises a flue gas and tail gas treatment system 11, an air inlet of the flue gas and tail gas treatment system 11 is connected with a flue gas seal head 111 of the inner-tube type drum dryer 1 through a pipeline, an air outlet of the flue gas and tail gas treatment system 11 is communicated with an air inlet of a flue gas induced draft fan 12, and an air outlet of the flue gas induced draft fan 12 is communicated with a flue gas chimney 13;
the moisture drying unit comprises a cyclone dust collector 6, an air inlet of the cyclone dust collector 6 is connected with a moisture seal head 108 of the inner-tube type drum dryer 1 through a pipeline, an ash outlet of the cyclone dust collector 6 is communicated with a feed end of the dust recovery spiral conveyer 5, a discharge end of the dust recovery spiral conveyer 5 is communicated with the spiral conveyer 4, an air outlet of the cyclone dust collector 6 is connected with an air inlet of the special graphite bag dust collector 7 through a pipeline, an air outlet of the special graphite bag dust collector 7 is communicated with an air inlet of a moisture induced draft fan 9, and an air outlet of the moisture induced draft fan 9 is communicated with a moisture chimney 8;
the discharging unit comprises a finished product screw conveyor 14, the feeding end of the finished product screw conveyor 14 is communicated with the discharging hole of the inner tube type drum dryer 1, the discharging end of the finished product screw conveyor 14 is communicated with a product bin 15, and a bin top dust remover 16 is arranged at the top end of the product bin 15.
The inner flue gas pipes 109 are uniformly arranged in the dryer cylinder 106, the inner flue gas pipes 109 are communicated with the flue gas inlet pipe 103, and the inner flue gas pipes 109 are arranged in the dryer cylinder 106 through the inner pipe fixing hoop 110.
The flue gas inner pipe 109 is provided with a plurality of pipes.
The cyclone 6 is a CLK cyclone.
A sealing cover 3 is arranged at the joint of the feeding conveyor 2 and the screw conveyor 4.
The utility model discloses adopted inner tube formula drum dryer 1 on the project organization for flue gas and moisture separation form two sets of independent systems, in independent moisture system, the moisture volume only needs to consider the evaporation water yield of taking away the drum dryer, can reduce the amount of wind with drying material 112 contact, alleviate the cross-section wind speed with drying material 112 contact, simultaneously in moisture tail gas processing system middle section, increase CLK type cyclone group, can detach about 45% powder granule, guarantee that the tail gas dust content that finally gets into special sack cleaner 7 of graphite can reduce to the concentration range of handling, improve treatment effect; in the aspect of system sealing design, a special conveying sealing cover 3 is additionally arranged, an open belt conveyor is changed into a sealed spiral conveyor 4, meanwhile, a dust recovery spiral conveyor 5 is additionally arranged at a dust collecting opening at the bottom of a CLK cyclone dust collector group, and collected dust is conveyed to a roller dryer again and is fed by the spiral conveyor 4 to be dried in a return furnace. The finished product screw conveyor 14 is adopted in the product discharging process, materials are directly conveyed to the product bin 15 in a sealing mode, a sealing circulation process is formed, and the problems that in the traditional drying process, the environment is polluted, and waste gas is exhausted and taken away, and the materials cannot be recycled are solved.
The feeding device of the inner tube type drum dryer 1 is characterized in that a spiral pushing blade 105 is arranged on the outer wall of a flue gas inlet pipe 103, the flue gas inlet pipe 103 is driven to rotate by the rotation of a dryer cylinder 106, the spiral pushing blade 105 can push materials entering from a feeding hole 102 into the dryer cylinder 106 for drying, and a feeding spiral conveyor is not required to be arranged independently; because the spiral pushing blade 105 is arranged on the outer side of the flue gas inlet pipe 103 and rotates by taking the flue gas inlet pipe 103 as a rotating shaft, the diameter range of the outer diameter of the spiral pushing blade 105 which can be designed is large, and the conveying requirements of different types of dryer cylinders 106 on the maximum conveying capacity can be met by designing different screw pitches and blade outer diameters, so that the drying efficiency of the dryer is improved; in addition, as the spiral pushing blade 105 is arranged at the outer side of the flue gas inlet pipe 103, the cold materials are continuously contacted with the pipe wall of the flue gas inlet pipe 103 during conveying, so that the spiral pushing blade has a preheating effect on the materials, and can cool the flue gas inlet pipe 103, thereby prolonging the service life of the flue gas inlet pipe 103 and the flue gas inner pipe 109.
The utility model discloses a drying form based on rotary kiln stoving technology designs, analyzes the reason that traditional rotary kiln stoving in-process, waste gas dust content is high, and can't thoroughly handle, and the internal tubular heating stoving principle of adoption changes original direct heating form and is indirect heating, greatly reduces tail gas treatment capacity, combines CLK cyclone to carry out the preliminary treatment simultaneously, makes the tail gas dust content that finally gets into special sack cleaner of graphite reduce to the dust remover can handle concentration, reaches the purpose of up to standard emission; meanwhile, the whole system improves the original feeding and discharging mode, in the whole drying process, the superior equipment and the subordinate equipment are all in sealed butt joint, and the problems of environmental pollution and incapability of recycling material loss brought away by waste gas emptying in the traditional drying process are solved.
The above embodiments are intended to illustrate the technical idea and features of the present invention, and only serve as examples, and should not be taken as limitations of the scope of the present invention.
Claims (5)
1. The utility model provides a special drying system of graphite powder, includes inner tube formula cylinder stoving unit, material loading unit, stoving flue gas unit, stoving moisture unit and ejection of compact unit, its characterized in that: the inner tube type roller drying unit comprises an inner tube type roller dryer and a drying heat source, the feeding device of the inner tube type roller dryer comprises a feeding guide tube, a feeding port is arranged above one end of the feeding guide tube, a flue gas air inlet tube is arranged in the feeding guide tube, the flue gas air inlet tube is sleeved inside the feeding guide tube, the air inlet end of the flue gas air inlet tube is communicated with the drying heat source, a feeding end socket is arranged at one end, close to the feeding port, of the feeding guide tube, the flue gas air inlet tube is rotatably connected with the feeding end socket, spiral pushing blades are arranged on the outer side of the flue gas air inlet tube in the feeding guide tube, the other end of the feeding guide tube is communicated with a dryer barrel body, the feeding guide tube and the flue gas air inlet tube go deep into the dryer barrel body, and a support frame is arranged outside the flue gas air inlet tube, the support frame is connected with the inner wall of the dryer cylinder, one end, close to the feeding hole, of the dryer cylinder is rotatably connected with a wet gas seal head, the outer wall of the feeding guide pipe is fixedly connected with the wet gas seal head, and a flue gas seal head is further arranged on the dryer cylinder;
the feeding unit comprises a feeding conveyor, the discharge end of the feeding conveyor is communicated with the feed end of a spiral conveyor, and the discharge end of the spiral conveyor is communicated with the feed inlet of the inner tubular roller dryer;
the drying flue gas unit comprises a flue gas tail gas treatment system, an air inlet of the flue gas tail gas treatment system is connected with a flue gas seal head of the inner-tube type drum dryer through a pipeline, an air outlet of the flue gas tail gas treatment system is communicated with an air inlet of a flue gas induced draft fan, and an air outlet of the flue gas induced draft fan is communicated with a flue gas chimney;
the wet gas drying unit comprises a cyclone dust collector, an air inlet of the cyclone dust collector is connected with a wet gas end socket of the inner tube type drum dryer through a pipeline, an ash outlet of the cyclone dust collector is communicated with a feed end of a dust recovery spiral conveyer, a discharge end of the dust recovery spiral conveyer is communicated with the spiral conveyer, an air outlet of the cyclone dust collector is connected with an air inlet of a graphite special bag-type dust collector through a pipeline, an air outlet of the graphite special bag-type dust collector is communicated with an air inlet of a wet gas induced draft fan, and an air outlet of the wet gas induced draft fan is communicated with a wet gas chimney;
the discharging unit comprises a finished product spiral conveyor, the feeding end of the finished product spiral conveyor is communicated with the discharging port of the inner tube type drum dryer, the discharging end of the finished product spiral conveyor is communicated with a product bin, and a bin top dust remover is arranged at the top end of the product bin.
2. The special drying system for graphite powder according to claim 1, characterized in that: the inner tube of flue gas that evenly is equipped with of stoving cylinder, the flue gas inner tube all with flue gas air-supply line intercommunication, the flue gas inner tube passes through the fixed staple bolt setting of inner tube and is in the stoving cylinder.
3. The special drying system for graphite powder according to claim 2, characterized in that: the flue gas inner tube is equipped with many.
4. The special drying system for graphite powder according to claim 3, characterized in that: the cyclone dust collector is a CLK cyclone dust collector.
5. The special drying system for graphite powder according to claim 4, characterized in that: and a sealing cover is arranged at the joint of the feeding conveyor and the spiral conveyor.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201920054551.4U CN209910306U (en) | 2019-01-14 | 2019-01-14 | Special drying system of graphite powder |
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| CN201920054551.4U CN209910306U (en) | 2019-01-14 | 2019-01-14 | Special drying system of graphite powder |
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| CN209910306U true CN209910306U (en) | 2020-01-07 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113758177A (en) * | 2021-09-27 | 2021-12-07 | 攀钢集团攀枝花钢铁研究院有限公司 | Induced air blowing system for drying titanium concentrate |
| CN113847789A (en) * | 2021-09-27 | 2021-12-28 | 攀钢集团攀枝花钢铁研究院有限公司 | Blowing and drying system for preventing titanium concentrate from hardening and technological method thereof |
| CN113865294A (en) * | 2021-09-27 | 2021-12-31 | 攀钢集团攀枝花钢铁研究院有限公司 | Induced air drying method for titanium concentrate |
| CN114034162A (en) * | 2021-12-06 | 2022-02-11 | 江苏龙净科杰环保技术有限公司 | Novel rotary kiln process |
-
2019
- 2019-01-14 CN CN201920054551.4U patent/CN209910306U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113758177A (en) * | 2021-09-27 | 2021-12-07 | 攀钢集团攀枝花钢铁研究院有限公司 | Induced air blowing system for drying titanium concentrate |
| CN113847789A (en) * | 2021-09-27 | 2021-12-28 | 攀钢集团攀枝花钢铁研究院有限公司 | Blowing and drying system for preventing titanium concentrate from hardening and technological method thereof |
| CN113865294A (en) * | 2021-09-27 | 2021-12-31 | 攀钢集团攀枝花钢铁研究院有限公司 | Induced air drying method for titanium concentrate |
| CN114034162A (en) * | 2021-12-06 | 2022-02-11 | 江苏龙净科杰环保技术有限公司 | Novel rotary kiln process |
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