CN104713335B - A kind of block-proof type vacuum rake dryer - Google Patents
A kind of block-proof type vacuum rake dryer Download PDFInfo
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- CN104713335B CN104713335B CN201410202458.5A CN201410202458A CN104713335B CN 104713335 B CN104713335 B CN 104713335B CN 201410202458 A CN201410202458 A CN 201410202458A CN 104713335 B CN104713335 B CN 104713335B
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- solid separation
- gas solid
- filter screen
- defecator
- block
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- 239000007787 solid Substances 0.000 claims abstract description 40
- 238000000926 separation method Methods 0.000 claims abstract description 38
- 239000000463 material Substances 0.000 claims abstract description 19
- 238000007664 blowing Methods 0.000 claims abstract description 12
- 238000009413 insulation Methods 0.000 claims description 7
- 239000002184 metal Substances 0.000 claims description 6
- 238000007599 discharging Methods 0.000 claims description 3
- 238000010438 heat treatment Methods 0.000 claims description 3
- 238000001035 drying Methods 0.000 abstract description 15
- 230000000903 blocking Effects 0.000 abstract description 5
- 239000002245 particle Substances 0.000 abstract description 4
- 238000003908 quality control method Methods 0.000 abstract description 2
- 239000000843 powder Substances 0.000 description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 238000005265 energy consumption Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000000047 product Substances 0.000 description 3
- 238000009833 condensation Methods 0.000 description 2
- 230000005494 condensation Effects 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 239000003570 air Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000006229 carbon black Substances 0.000 description 1
- 238000005039 chemical industry Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 238000005755 formation reaction Methods 0.000 description 1
- 238000002309 gasification Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000011505 plaster Substances 0.000 description 1
- 239000011265 semifinished product Substances 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000002352 surface water Substances 0.000 description 1
- 238000001291 vacuum drying Methods 0.000 description 1
Abstract
The invention discloses a kind of block-proof type vacuum rake dryer, including cylinder, gas solid separation defecator communicates with cylinder, the escape pipe being connected with vacuum pump it is provided with at the top dead center position of gas solid separation defecator, inner vertical in gas solid separation defecator upper surface is provided with columnar filter screen bracket, being provided with ultra-fine filter screen on filter screen bracket, be provided with back-blowing air inlet on the top of gas solid separation defecator, connecting on gas solid separation defecator has bidirection press table.Gas solid separation defecator was directly connected by the present invention with drying machine cylinder, not only compact conformation, taken up space little, easy to use, decrease fixed assets investment, and due to the problem without collecting product at two, thus it being more beneficial for the quality control of product, certainly particle diameter is little, porosity is high for efficient solution, a difficult problem for easy dirt blocking filter screen in low density superfine powdery material dry run.
Description
Technical field
The present invention relates to a kind of powder drying equipment, be specifically related to a kind of block-proof type vacuum rake dryer.
Background technology
Vacuum rake dryer is the horizontal intermittent vacuum drying equipment of a kind of novelty, there is simple in construction, easy to operate, the use cycle is long, stable and reliable for performance, energy consumption is relatively low, the feature that applicable performance is strong, it is particularly suitable for non-refractory, inflammable, oxidizable plaster material, and the dry materials operation that the steam got rid of in dry run or solvent must reclaim.Vacuum rake dryer is widely used in the semi-finished product powder wet slag drying process of chemical industry, feedstuff, food service industry.
The drying of vacuum rake dryer device is with chuck steam or adds the indirect heated material of deep fat, wet stock added by dog-house after under the stirring of the rake teeth constantly rotated or ribbon, when material contacts with housing wall, surface is constantly updated, it is dried material to be heated indirectly, the moisture in material is made constantly to gasify, the steam of gasification is taken away in time by vacuum pump again, owing to operation vacuum is higher, advantageously reduce the vapourizing temperature of water, and it is dried material surface water vapour pressure much larger than the water vapour pressure of evaporating space in drying machine housing, be conducive to being dried the discharge of material internal moisture and surface moisture, be conducive to being dried the moisture movement of material, reach to improve efficiency, accelerate the purpose of rate of drying.
Vacuum rake dryer is used to be dried powder, air and water vapour are taken away, powder body is stayed, the method realizing gas solid separation is to add one drainage screen at gas outlet, but for as the particle diameters such as white carbon black are little, porosity is high, low density superfine powdery material, after absorbing steam, easily caking or bridge formation block filter screen to the dry fine powder flown upward, make the vacuum pump cannot evacuation, gradually malleation is become by negative pressure in drum dryer body, cause drying machine normally to work, easily produce production accident.
In order to solve to use vacuum rake dryer to be dried that particle diameter is little, porosity is high, the problem of the easy network blocking of low density superfine powdery material, some chamber of commerce of factory connects a bag hose with pulse backblowing wind function after drying machine, with vacuum pump, the air containing dust and steam are sent into bag hose, gas solid separation is realized with bag hose, scavenge, leave solid powder, then solid powder is collected.
Making shortcoming in this way is that process route is long, equipment investment is high, and the material collected at bag hose is easily formed difference with the material in drum dryer body in quality, is not fully homogenized by the material that two kinds of different approaches obtain, it is difficult to ensure that the overall quality of product.
Summary of the invention
The technical problem to be solved be to provide a kind of can effectively solve dust blocking filter screen problem block-proof type vacuum rake dryer.
For solving above-mentioned technical problem, the technical scheme that the present invention takes is as follows:
Block-proof type vacuum rake dryer, including cylinder, the outer layer of described cylinder is provided with heating jacket, cylinder is provided with dog-house and discharging opening, gas solid separation defecator communicates with described cylinder, it is provided with, at the top dead center position of described gas solid separation defecator, the escape pipe being connected with vacuum pump, inner vertical in described gas solid separation defecator upper surface is provided with columnar filter screen bracket, described filter screen bracket is provided with ultra-fine filter screen, on the top of described gas solid separation defecator, back-blowing air inlet is installed, described gas solid separation defecator connects and has bidirection press table, described bidirection press table is provided with protection valve on the pipeline in cylinder direction.
Above-mentioned gas solid separation defecator is inverted barrel shaped structure, and it is communicated with described cylinder by flange.
Above-mentioned gas solid separation defecator is multiple structure; outermost layer is coat of metal; middle one layer of heat-insulation layer constituted for insulation material; innermost layer is thin metal layer; the purpose of moderate soak layer is to prevent barrel temperature too low, water vapor condensation make powder body make moist caking and cause the generation of filter net jam phenomenon.
Further, 1/2 to the 5/6 of a diameter of dog-house of above-mentioned gas solid separation defecator, its height is 1～3 times of the height of dog-house, preferably 2 times, thus in ensure that the cylinder that the xeraphium physical ability obtained through sock filtration falls back to drying machine in time.
Preferably, the height of above-mentioned filter screen bracket is 1～2 times of the height of dog-house to more one step, preferably 1.2 times, thus further ensures in the cylinder that the xeraphium physical ability obtained through sock filtration falls back to drying machine in time.
The back-blowing air inlet being arranged on described gas solid separation defecator top is two, is also equipped with back-blowing air inlet on the pipeline that described protection valve leads to cylinder direction.
Guaranteeing to realize the purpose of gas solid separation for more one step, the mesh number of above-mentioned ultra-fine filter screen is 300～500 mesh, preferably 400 mesh.
For realizing automatically drying anti-blocking purpose, above-mentioned gas solid separation defecator is also connected with automation control system.
Compared with prior art, the invention have the benefit that
Gas solid separation defecator was directly connected by the present invention with drying machine cylinder, not only compact conformation, taken up space little, easy to use, decrease fixed assets investment, and due to the problem without collecting product at two, thus it being more beneficial for the quality control of product, certainly particle diameter is little, porosity is high for efficient solution, a difficult problem for easy dirt blocking filter screen in low density superfine powdery material dry run.Simultaneously as back-blowing only starts the most automatically when there is filter net jam, reduce energy consumption, it is ensured that production safety.
Accompanying drawing explanation
The present invention is further detailed explanation with detailed description of the invention below in conjunction with the accompanying drawings.
Fig. 1 is the profile that block-proof type vacuum rake type of the present invention is dried.
Wherein: 1-gas solid separation defecator；11-bidirection press table；12-protects valve；13-back-blowing air inlet；14-escape pipe；The ultra-fine filter screen of 15-；16-filter screen bracket；17-heat-insulation layer；2-flange；3-dog-house；4-heating jacket；5-cylinder；6-discharging opening.
Detailed description of the invention
As shown in Figure 1, block-proof type vacuum rake dryer is to be connected by flange 14 to have the gas solid separation defecator 1 of an inverted barrel shaped structure above the cylinder 5 of traditional vacuum rake dryer, when gas solid separation defecator 1 5/6ths of a diameter of dog-house 3, its height be the twice of height of dog-house 3 time, it is ensured that the xeraphium physical ability being filtrated to get falls back in the cylinder 5 of drying machine in time.
Inverted barrel-shaped gas solid separation defecator 1 is multiple structure; outermost layer is coat of metal; middle one layer of heat-insulation layer 17 constituted for insulation material; innermost layer is sheet metal; the purpose of moderate soak layer 17 is to prevent barrel temperature too low, water vapor condensation make powder body make moist caking and cause the phenomenon of filter net jam to occur.
The concrete structure of gas solid separation defecator 1 is as follows:
The escape pipe 14 being connected with vacuum pump it is provided with at its top dead center position, escape pipe 14 is connected with the vacuum pump of evacuation, inner vertical in described gas solid separation defecator 1 upper surface is provided with columnar filter screen bracket 16, described filter screen bracket 16 is provided with ultra-fine filter screen 15, the height of filter screen bracket 16 is 1.2 times of the height of dog-house 3, the mesh number of ultra-fine filter screen 15 is 400 mesh, to realize the purpose of gas solid separation；
Being provided with back-blowing air inlet 13 on its top, to introduce pressure-air, the pressure of pressure-air is 0.8Mpa, removes the network blocking powder body on filter screen when necessary；
It is also connected with bidirection press table 11, to show the pressure in the cylinder 5 of drying machine, manometric range-0.1 Mpa～0.8 Mpa.Only show that negative pressure is different from the Pressure gauge of general vacuum rake dryer, the present invention use bidirection press table 11 require range to reflect negative pressure also can reflect malleation.In order to prevent the line clogging of bidirection press table 11, bidirection press table 11 leads to be provided with on the pipeline in cylinder 5 direction protects valve 12, it may be necessary to blowing cleaning, to ensure manometric normal work.
Additionally, gas solid separation defecator 1 is also connected with automation control system, when the pressure in drying machine cylinder 5 arranges value close to malleation, system automatic alarm, automatically open up valve 3 simultaneously and carry out high pressure back-blowing, this automatic back blow wind only just starts when there is filter net jam, reduces energy consumption, it is ensured that production safety.
Although the detailed description of the invention to the present invention gives detailed description and explanation above; but it should be noted that; we can carry out various equivalence according to the conception of the present invention to above-mentioned embodiment and change and amendment; function produced by it still without departing from description contained spiritual time, all should be within protection scope of the present invention.
Claims (7)
- null1. block-proof type vacuum rake dryer，Including cylinder (5)，The outer layer of described cylinder (5) is provided with heating jacket (4)，Cylinder (5) is provided with dog-house (3) and discharging opening (6)，It is characterized in that: gas solid separation defecator (1) communicates with described cylinder (5)，The escape pipe (14) being connected with vacuum pump it is provided with at the top dead center position of described gas solid separation defecator (1)，Inner vertical in described gas solid separation defecator (1) upper surface is provided with columnar filter screen bracket (16)，Described filter screen bracket (16) is provided with ultra-fine filter screen (15)，On the top of described gas solid separation defecator (1), back-blowing air inlet (13) is installed，Bidirection press table (11) is had in the upper connection of described gas solid separation defecator (1)，Described bidirection press table (11) is provided with protection valve (12) on the pipeline in cylinder (5) direction；Described gas solid separation defecator (1) is inverted barrel shaped structure, and it is communicated with described cylinder (5) by flange (2)；Described gas solid separation defecator (1) is multiple structure, and outermost layer is coat of metal, and middle one layer of heat-insulation layer (17) constituted for insulation material, innermost layer is thin metal layer.
- 2. block-proof type vacuum rake dryer as claimed in claim 1, it is characterised in that: 1/2 to the 5/6 of a diameter of dog-house (3) of described gas solid separation defecator (1), its height is 1～3 times of the height of dog-house (3).
- 3. block-proof type vacuum rake dryer as claimed in claim 1, it is characterised in that: 5, block-proof type vacuum rake dryer as claimed in claim 1, it is characterised in that: the height of described filter screen bracket (16) is 1～3 times of the height of dog-house (3).
- 4. block-proof type vacuum rake dryer as claimed in claim 1, it is characterised in that: the back-blowing air inlet (13) being arranged on described gas solid separation defecator (1) top is two.
- 5. block-proof type vacuum rake dryer as claimed in claim 1, it is characterised in that: on the pipeline that described protection valve (12) leads to cylinder (5) direction, it is also equipped with back-blowing air inlet (13).
- 6. block-proof type vacuum rake dryer as claimed in claim 1, it is characterised in that: the mesh number of described ultra-fine filter screen (15) is 300～500 mesh.
- 7. block-proof type vacuum rake dryer as claimed in claim 1, it is characterised in that: described gas solid separation defecator is also connected with automation control system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410202458.5A CN104713335B (en) | 2014-05-14 | A kind of block-proof type vacuum rake dryer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410202458.5A CN104713335B (en) | 2014-05-14 | A kind of block-proof type vacuum rake dryer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104713335A CN104713335A (en) | 2015-06-17 |
| CN104713335B true CN104713335B (en) | 2016-11-30 |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202675832U (en) * | 2012-06-27 | 2013-01-16 | 方斌 | Novel filtering head device |
| CN203068928U (en) * | 2012-10-10 | 2013-07-17 | 长沙理工大学 | High-efficient mass-transfer bipyramidal rotary vacuum drier |
| CN203323540U (en) * | 2013-06-21 | 2013-12-04 | 浙江医药股份有限公司新昌制药厂 | Internal filtering and powder vibrating device of double-tapered rotary vacuum drier |
| CN203464623U (en) * | 2013-08-13 | 2014-03-05 | 常州苏能干燥工程有限公司 | Single cone dryer with helical ribbon agitator |
| CN203501693U (en) * | 2013-10-08 | 2014-03-26 | 常州拓阳干燥机械有限公司 | Open vacuum rake type combination drying machine |
| CN203893607U (en) * | 2014-05-14 | 2014-10-22 | 安徽黑钰颜料新材料有限公司 | Anti-blocking vacuum rake dryer |
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202675832U (en) * | 2012-06-27 | 2013-01-16 | 方斌 | Novel filtering head device |
| CN203068928U (en) * | 2012-10-10 | 2013-07-17 | 长沙理工大学 | High-efficient mass-transfer bipyramidal rotary vacuum drier |
| CN203323540U (en) * | 2013-06-21 | 2013-12-04 | 浙江医药股份有限公司新昌制药厂 | Internal filtering and powder vibrating device of double-tapered rotary vacuum drier |
| CN203464623U (en) * | 2013-08-13 | 2014-03-05 | 常州苏能干燥工程有限公司 | Single cone dryer with helical ribbon agitator |
| CN203501693U (en) * | 2013-10-08 | 2014-03-26 | 常州拓阳干燥机械有限公司 | Open vacuum rake type combination drying machine |
| CN203893607U (en) * | 2014-05-14 | 2014-10-22 | 安徽黑钰颜料新材料有限公司 | Anti-blocking vacuum rake dryer |
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Effective date of registration: 20220112 Address after: 230000 intersection of Zhucheng road and Yingzhou Road, Xinzhan District, Hefei City, Anhui Province Patentee after: Anhui black cat New Material Co.,Ltd. Address before: 230012 northeast corner of the intersection of Zhucheng road and Yingzhou Road, Xinzhan, Hefei City, Anhui Province Patentee before: BLACK DIAMOND MATERIAL SCIENCE Co.,Ltd. |