CN114471307A - Powder treatment equipment and method - Google Patents
Powder treatment equipment and method Download PDFInfo
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- CN114471307A CN114471307A CN202011167220.5A CN202011167220A CN114471307A CN 114471307 A CN114471307 A CN 114471307A CN 202011167220 A CN202011167220 A CN 202011167220A CN 114471307 A CN114471307 A CN 114471307A
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- 239000000843 powder Substances 0.000 title claims abstract description 51
- 238000000034 method Methods 0.000 title claims abstract description 28
- 230000007246 mechanism Effects 0.000 claims abstract description 74
- 239000000463 material Substances 0.000 claims abstract description 64
- 238000001914 filtration Methods 0.000 claims abstract description 45
- 239000002904 solvent Substances 0.000 claims abstract description 37
- 239000011521 glass Substances 0.000 claims description 31
- 238000007789 sealing Methods 0.000 claims description 26
- 238000007599 discharging Methods 0.000 claims description 24
- 238000009700 powder processing Methods 0.000 claims description 22
- 230000010355 oscillation Effects 0.000 claims description 18
- 238000002474 experimental method Methods 0.000 claims description 14
- 239000007788 liquid Substances 0.000 claims description 14
- 239000000706 filtrate Substances 0.000 claims description 13
- 239000002245 particle Substances 0.000 claims description 13
- 230000008569 process Effects 0.000 claims description 12
- 238000005086 pumping Methods 0.000 claims description 11
- 239000002002 slurry Substances 0.000 claims description 9
- 238000005485 electric heating Methods 0.000 claims description 7
- 230000003068 static effect Effects 0.000 claims description 6
- 239000002994 raw material Substances 0.000 claims description 5
- 238000004062 sedimentation Methods 0.000 claims description 5
- 239000003292 glue Substances 0.000 claims description 2
- 239000003054 catalyst Substances 0.000 abstract description 22
- 238000001035 drying Methods 0.000 abstract description 18
- 238000005406 washing Methods 0.000 abstract description 16
- 229920000098 polyolefin Polymers 0.000 abstract description 11
- 238000003756 stirring Methods 0.000 abstract description 8
- 238000006243 chemical reaction Methods 0.000 abstract description 4
- 230000007547 defect Effects 0.000 abstract description 2
- 238000010438 heat treatment Methods 0.000 description 9
- 238000012546 transfer Methods 0.000 description 8
- 230000006872 improvement Effects 0.000 description 7
- 239000000047 product Substances 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 239000012065 filter cake Substances 0.000 description 4
- 238000002360 preparation method Methods 0.000 description 4
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 239000003960 organic solvent Substances 0.000 description 3
- 239000001301 oxygen Substances 0.000 description 3
- 229910052760 oxygen Inorganic materials 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 238000003786 synthesis reaction Methods 0.000 description 3
- 238000001816 cooling Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000002309 gasification Methods 0.000 description 2
- 239000008187 granular material Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000003381 stabilizer Substances 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 238000005054 agglomeration Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 238000010981 drying operation Methods 0.000 description 1
- 230000007717 exclusion Effects 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 238000005243 fluidization Methods 0.000 description 1
- 230000002779 inactivation Effects 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000000565 sealant Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 238000001291 vacuum drying Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F4/00—Polymerisation catalysts
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Drying Of Solid Materials (AREA)
Abstract
The invention provides powder treatment equipment and a powder treatment method, and belongs to the field of powder treatment. The apparatus comprises: the device comprises a tank body, a filtering mechanism, an oscillating mechanism and a temperature control mechanism; the tank body is a closed container; the filtering mechanism is arranged in the inner cavity of the tank body and is used for filtering out a solvent in the tank body; the oscillating mechanism is connected with the tank body and is used for driving the tank body to oscillate; the temperature control mechanism is arranged outside the tank body or in the inner cavity and used for controlling the temperature of the materials in the tank body. The equipment has the characteristics of simple structure and simple and convenient operation, overcomes the defects of the traditional reaction kettle paddle-adding type stirring for treating the sensitive powder material, is suitable for efficiently washing, filtering and drying the sensitive powder material, and is particularly suitable for preparing the polyolefin supported catalyst.
Description
Technical Field
The invention belongs to the field of powder treatment, and particularly relates to a powder treatment device and a powder treatment method, which are particularly suitable for washing, filtering and drying sensitive powder materials.
Background
The powder is a material form widely applied in the fields of chemical industry, energy, food, medicine and the like. There are many mature techniques and equipments in the industry for the treatment of powder, and the chapter 16 of the "powder technical Manual" edited by Seikagaku shou.
In the fields of chemical industry, energy and the like, the treatment of water and oxygen sensitive powder is often involved, such as washing, drying and the like, wherein the washing process is a process of adding an organic solvent into the powder, stirring to form uniform suspension, then filtering to remove the organic solvent, removing components which are not tightly bonded on the surfaces of powder particles through the process, and the drying process is a process of removing the residual organic solvent in filter cakes after filtering by utilizing heat energy to obtain powder materials. The polyolefin supported catalyst is a typical water and oxygen sensitive powder, and the catalyst powder with good fluidity is obtained by washing the polyolefin supported catalyst for a plurality of times in the preparation process and then vacuumizing and drying the polyolefin supported catalyst, and the specific example can be seen in Chinese published patent document 201410590067.5. Since the supported catalyst is sensitive to substances such as water, oxygen and the like, the above process needs to be carried out under strict exclusion of air.
In the prior art, the preparation, washing and drying operations of the polyolefin supported catalyst are generally carried out in a reaction kettle with a paddle type stirrer, and the following problems exist in the actual production:
1) the filtered catalyst wet filter cake is compact, the stirring start needs a large torque after the solvent is added, and the torque needed after the uniform stirring is small, so that the practical operation is difficult, and the automation of the operation is not easy to realize.
2) Paddle stirring is poor in powder dispersion and fluidization effects, so that mass transfer and heat transfer efficiency in the drying process is reduced rapidly, drying efficiency is reduced, energy waste and drying time are caused, the moisture content of powder in the drying process is not uniform, materials with high humidity can form agglomeration and caking, sometimes the material caking can be adhered to a stirring shaft, and the final product contains caking, so that the product quality is influenced.
3) The stirring shaft is sealed by adopting a filler, the sealing effect of dynamic sealing is poor, the sealing effect is very unfavorable for particularly sensitive materials, trace air can enter the reaction kettle during vacuum drying, partial inactivation of the materials is caused, the product quality is reduced, and even the product can be completely scrapped.
In conclusion, the development of a washing and drying device and a process suitable for sensitive powder materials is urgently needed in actual industrial production, and has very important significance and practical application.
Disclosure of Invention
The invention aims to solve the problems in the prior art and provides powder treatment equipment and a powder treatment method, which are suitable for efficiently washing, filtering and drying sensitive powder materials, and are particularly suitable for preparing polyolefin supported catalysts.
The invention is realized by the following technical scheme:
a powder processing apparatus, comprising: the device comprises a tank body, a filtering mechanism, an oscillating mechanism and a temperature control mechanism;
the tank body is a closed container;
the filtering mechanism is arranged in the inner cavity of the tank body and is used for filtering out a solvent in the tank body;
the oscillating mechanism is connected with the tank body and is used for driving the tank body to oscillate;
the temperature control mechanism is arranged outside the tank body or in the inner cavity and used for controlling the temperature of the materials in the tank body.
The invention has the further improvement that a feed inlet, an air inlet, a vacuum interface and a discharge hole are formed on the tank body;
a feeding pipe, an air inlet pipe, a vacuum connector and a discharging pipe are respectively arranged on the feeding hole, the air inlet, the vacuum connector and the discharging hole;
the lower ends of the feeding pipe, the air inlet pipe and the vacuumizing pipe are all positioned in the inner cavity of the tank body.
The invention has the further improvement that a sight glass mounting opening is arranged on the tank body, and a sight glass seat is arranged on the sight glass mounting opening;
the sight glass is installed on the sight glass seat through a flange and a sealing structure.
The invention has the further improvement that the vacuum-pumping pipe is arranged on the vacuum-pumping interface through a flange and a sealing structure;
and a particle filtering device is arranged at one end of the vacuumizing pipe, which is positioned in the inner cavity of the tank body.
The invention is further improved in that a base is arranged below the oscillating mechanism;
the base comprises a support platform;
and a plurality of spiral supporting feet are connected below the supporting platform.
The invention has the further improvement that the tank body is a cylindrical barrel, the lower end of the tank body is a closed end, the upper end of the tank body is an open end, and a top cover is arranged at the open end of the tank body; the top cover is connected with the opening end through a flange and a sealing structure;
the filtering mechanism adopts a filtering rod;
the top cover is provided with a feed inlet, an air inlet, a sight glass mounting port, a vacuum interface and a filter rod mounting port; a filter rod is arranged on the filter rod mounting port;
the lower end of the filter rod is positioned in the inner cavity of the tank body, and the filter head of the filter rod is close to the bottom of the tank body;
a discharge hole is formed in one side of the bottom of the tank body;
the temperature control mechanism adopts an electric heating sleeve, and the electric heating sleeve is arranged outside the tank body.
The invention has the further improvement that the oscillation mechanism adopts an oscillation experiment table;
the lower end of the tank body is provided with a plurality of support legs, and the lower ends of all the support legs are fixedly connected to the oscillation experiment table;
the lower end of the vibration experiment table is fixedly arranged on the upper end face of the supporting platform.
The invention has the further improvement that the tank body is a cylindrical barrel, the upper end of the tank body is a closed end, and the lower end of the tank body is an open end; a feed inlet, an air inlet, at least two sight glass mounting ports and a vacuum interface are formed in the closed end of the tank body;
a bottom end cover is arranged at the opening end of the tank body and is connected with the opening end of the tank body through a flange and a sealing structure;
the filter mechanism adopts a filter plate and a filter liquid pipe, and the filter plate is arranged at the bottom in the inner cavity of the tank body; a filtrate outlet is formed in the center of the bottom end cover, and a filtrate pipe is connected to the filtrate outlet;
a discharge hole is formed in the side wall of the lower part of the tank body; the discharge port is arranged above the filter plate and close to the filter plate;
the temperature control mechanism adopts a jacket which is arranged outside the tank body;
the jacket is provided with a liquid inlet and a liquid outlet.
The invention has the further improvement that a plurality of support legs are arranged below the tank body, the upper ends of the support legs are connected with the lower end of the tank body, and the lower ends of the support legs are connected with the vibration spring;
the lower end of the vibration spring is fixedly connected to the supporting platform;
the oscillating mechanism adopts a vibrating motor;
a motor mounting structure is connected below the bottom end cover;
the motor mounting structure is of a cylindrical structure, the upper end of the motor mounting structure is fixedly connected with the bottom end cover, the lower end of the motor mounting structure is fixedly connected with the upper end of the vibration motor, and the bottom end cover, the motor mounting structure and the vibration motor are coaxially arranged;
the side surface of the motor mounting structure is provided with a hole, the filtrate pipe penetrates into the motor mounting structure from the upper end of the motor mounting structure, and penetrates out of the motor mounting structure from the hole on the side surface.
Preferably, the sealing structures are static sealing structures, and each static sealing structure comprises a gasket, a sealing ring or a sealing glue.
In a second aspect of the present invention, there is provided a method for powder processing using the above powder processing apparatus, the method comprising:
(1) adding the raw materials into a tank body through a feeding pipe, standing for sedimentation, and then filtering and discharging the solvent through a filtering mechanism;
(2) adding a solvent through a feeding pipe, starting an oscillating mechanism, enabling a tank body to make oscillating motion under the driving of the oscillating mechanism, directly acting the inner wall of the tank body on the material in the tank body, oscillating the material to form uniform slurry, standing and settling, and filtering and discharging the solvent through a filtering mechanism;
(3) repeating the step (2) N times;
(4) starting the oscillating mechanism, simultaneously starting the temperature control mechanism to heat the tank body, and discharging the gasified solvent out of the tank body through a vacuum-pumping pipe to finally form a uniformly dried powder material;
(5) and discharging the powder material from the discharge pipe.
The operation of step (5) further comprises:
in the discharging process, the height of each spiral supporting leg is adjusted, so that the whole tank body is inclined towards the discharging hole, and the oscillating mechanism is opened to slowly oscillate, so that the powder material is completely discharged.
Compared with the prior art, the invention has the beneficial effects that: the equipment has the characteristics of simple structure and simple and convenient operation, overcomes the defects of the traditional reaction kettle paddle-adding type stirring for treating the sensitive powder material, is suitable for efficiently washing, filtering and drying the sensitive powder material, and is particularly suitable for preparing the polyolefin supported catalyst.
Drawings
Fig. 1 is a schematic structural diagram of a powder processing apparatus according to a first embodiment of the present invention.
Fig. 2 is a schematic structural diagram of a second embodiment of the powder processing apparatus of the present invention.
Detailed Description
The invention is described in further detail below with reference to the accompanying drawings:
the device of the invention comprises: the device comprises a tank body, a filtering mechanism, an oscillating mechanism and a temperature control mechanism, wherein the device completely adopts a static sealing structure, the tank body of the device directly acts on internal materials, can be used for the treatment processes of washing, filtering, drying and the like of powder materials, and is particularly suitable for the treatment of sensitive powder materials such as polyolefin supported catalysts.
Specifically, the apparatus of the present invention comprises:
1) tank body
The tank body is a closed container, and a feed inlet, an air inlet, a vacuum interface and a discharge hole are formed in the tank body. The specific shape of the tank body can be set according to the material requirements, such as vertical (length-diameter ratio is more than or equal to 1), horizontal (length-diameter ratio is less than 1) and the like. The tank body is generally in a revolving body structure, such as a cylinder, a sphere and the like, and can also be in a cubic or cube-like structure, and the connecting part of the surface and the surface is set to be in circular arc transition when the cubic structure is adopted, so that the accumulation of materials is avoided.
And the tank body is also provided with a sight glass for observing the working condition in the equipment.
The feeding port, the air inlet and the discharge port are respectively provided with a feeding pipe, an air inlet pipe, a vacuumizing pipe and a discharge pipe, the feeding pipe, the air inlet pipe and the discharge pipe do not need to be disassembled, and can be directly and fixedly connected to the tank body, for example, can be fixed on the tank body in a welding mode.
Preferably, a particle filtering device is arranged at one end of the evacuation pipe positioned in the inner cavity of the tank body, and the evacuation pipe needs to be detachably arranged for replacing or cleaning the particle filtering device, so that the evacuation pipe is preferably connected with the tank body through a flange and sealed by a gasket. The sight glass seat is welded on the tank body, and the sight glass is hermetically installed on the sight glass seat through a flange gasket-added structure.
Generally, the feed inlet and the air inlet are arranged at the upper part of the tank body, and the discharge outlet is arranged at the lower part of the tank body.
2) A temperature control mechanism;
the temperature control mechanism is used for controlling the temperature of the materials in the tank body, and is generally used for heating the materials in the tank body. The temperature control mechanism can be arranged outside the tank body, the temperature control mechanism can adopt the existing electric heating jacket, heating jacket and the like, the available heating medium comprises steam, water, oil, air and the like when the jacket is used, and the temperature control mechanism can also be used for cooling materials if a low-temperature medium is introduced into the jacket.
The temperature control mechanism can also be arranged in the inner cavity of the tank body, for example, the existing infrared heater, microwave heater, heating coil and the like are adopted, the available heating medium comprises steam, water, oil, air and the like when the coil is used, and if a low-temperature medium is introduced into the coil, the temperature control mechanism can also be used for cooling materials.
3) A filtering mechanism;
the filter mechanism is arranged in the inner cavity of the tank body and used for filtering the washing solvent in the tank body, the filter mechanism can adopt plate filters (such as filter plates and the like) and filter rods and the like, and the plate filters can be arranged at the bottom of the tank body and also can be arranged on the side surface of the tank body.
4) An oscillating mechanism;
the oscillating mechanism is connected with the tank body and is used for driving the tank body to do linear reciprocating motion or rotary motion in a horizontal plane or a vertical plane or driving the tank body to do swinging motion around a specific axis.
The oscillation mechanism adopts the existing mechanisms, such as a vibration motor, a crank link mechanism, an oscillation experiment table and the like.
Optionally, the device of the present invention may further comprise:
5) a base;
the base is used for supporting, fixed jar of body, temperature control mechanism, filtering mechanism, oscillation mechanism etc, the base has the function of adjusting jar body inclination, can make jar body slope at certain angle within range, makes things convenient for jar internal material to unload out.
The method for processing powder by using the powder processing equipment comprises the following steps:
(1) adding the raw materials into a tank body through a feeding pipe, standing for sedimentation, and then filtering and discharging the solvent through a filtering mechanism; the raw material can be powder slurry, or supported catalyst slurry prepared from a synthesis reaction kettle, or powder, and if the raw material is powder, a solvent can be added from a feeding pipe, the mixture is shaken and mixed uniformly, and then the mixture is stood for sedimentation.
(2) Adding a solvent through a feeding pipe, starting an oscillating mechanism, enabling a tank body to make oscillating motion under the driving of the oscillating mechanism, directly acting the inner wall of the tank body on the material in the tank body, oscillating the material to form uniform slurry, standing for sedimentation, and filtering and discharging the solvent through a filtering mechanism;
(3) repeating the step (2) N times; the value of N can be set according to actual conditions.
(4) Starting the oscillating mechanism, starting the temperature control mechanism to heat the tank body, and discharging the gasified solvent out of the tank body through a vacuum-pumping pipe to finally form a uniformly dried powder material;
(5) and discharging the uniformly dried powder material through a discharge pipe. In the discharging process, the height of each spiral supporting leg is adjusted, so that the whole tank body is inclined towards the discharging hole, and the oscillating mechanism is opened to slowly oscillate, so that the powder material is completely discharged.
The connecting pipelines of the equipment and other equipment adopt pressure-resistant flexible pipelines, such as stainless steel corrugated pipes, stainless steel braided hoses, rubber pipes and the like.
In the powder processing equipment, the inner wall of the tank body directly acts on the material particles in the inner cavity of the tank body, the material particles oscillate in the tank body to form a fluidized state, so that the mass transfer efficiency and the heat transfer efficiency are obviously improved, the drying efficiency of the powder is greatly improved, and the tank body directly acts on the material in the inner cavity of the tank body, so that wet material agglomerates possibly existing in the material are easily crushed, and the powder material without agglomerates is obtained.
In addition, the powder processing equipment does not use a dynamic sealing structure, all joints adopt static sealing structures, the sealing performance of the whole system is better, and the powder processing equipment is more suitable for washing and drying sensitive materials and can be used for preparing, washing, filtering and drying the polyolefin catalyst.
An embodiment of the apparatus of the invention is as follows:
[ EXAMPLES one ]
As shown in fig. 1, the can body is a cylindrical barrel body, in this embodiment, the can body is a cylindrical barrel body with a closed lower end and an open upper end, and a top cover is arranged at the upper end of the can body for the convenience of manufacturing and maintenance (the top cover is integrally connected with the can body in fig. 1). The top cover is connected with the opening end of the tank body through a flange and is sealed by a gasket, a sealing ring or a sealant and the like.
The top cover is provided with a feed inlet, an air inlet, a sight glass mounting opening, a vacuum interface and a filter rod mounting opening, the feed inlet is provided with an inlet pipe 1, the air inlet is provided with an air inlet pipe 2, the sight glass mounting opening is provided with a sight glass seat, a sight glass 3 is mounted on the sight glass seat through a flange gasket, the vacuum pipe 4 is mounted on the vacuum interface, and the filter rod 5 is mounted on the filter rod mounting opening. The lower ends of the feeding pipe 1, the air inlet pipe 2, the vacuumizing pipe 4 and the filter rod 5 are all positioned in the inner cavity of the tank body.
Preferably, a particle filtering device (the filtering device is a commercially available product) is installed at the lower end of the vacuum-pumping pipe 4, so that the materials in the tank body are prevented from being sucked into the vacuum-pumping system.
The filter head of the filter rod 5 is close to the bottom of the tank body. The filter rod is very easy to replace, is very convenient in practical operation, and can be replaced under special conditions (such as when materials exist in the tank body in the using process).
An electric heating jacket 6 is arranged outside the tank body.
A discharge hole is formed in one side of the bottom of the tank body, and a discharge pipe 11 is connected to the discharge hole.
The lower extreme of the jar body is provided with a plurality of stabilizer blades 7, and the equal fixed connection of lower extreme of all stabilizer blades 7 is on oscillation experiment platform 8, oscillation experiment platform 8 adopts commercially available oscillation experiment platform can (its structure is no longer repeated here, has represented this oscillation experiment platform with a rectangle in FIG. 1), and oscillation experiment platform 8 generally adopts the eccentric wheel structure, can convolute the oscillation with certain frequency and amplitude, during the in-service use, can select the oscillation experiment platform 8 of different models according to the volume size of the jar body.
The base includes supporting platform 9, the lower extreme fixed mounting of vibration laboratory bench 8 is in on supporting platform 9's the up end.
Further, a plurality of spiral supporting feet 10 are connected below the supporting platform 9, and the inclination angle of the tank body can be adjusted by adjusting the supporting height of each spiral supporting foot 10, so that materials can be conveniently discharged from the discharge pipe 11.
The use method of the device is as follows:
in the preparation process of the polyolefin catalyst, the supported catalyst slurry (slurry, namely, the mixture of solid particles suspended in a liquid solvent) prepared from a synthesis reaction kettle is added into a tank body through a feeding pipe 1, standing and settling are carried out, the density of the particles is higher than that of the solvent, so that the particles sink to the lower layer after settling, the solvent is sucked out through a filter rod 5, or the solvent is pressed out from the filter rod 5 by pressurizing the tank body, and the solvent is filtered and discharged;
then add the solvent through the inlet pipe 1, and open the vibration laboratory bench 8, the jar body does the oscillating motion that circles round under the drive of vibration laboratory bench 8, the inner wall direct action of jar body is in the internal material of jar, vibrate the material and form even thick liquid, realized like this that to the washing of the internal material of jar, then the settlement of standing, filter the solvent and discharge, repeat the above-mentioned washing, the settlement of standing, filter the step of discharge with the solvent several times, then open the vibration laboratory bench 8, open simultaneously electric heating cover 6 (because need make the solvent gasification through the heating) and heat, make the solvent after the gasification discharge outside the jar body through the evacuation pipe 4 evacuation.
Because the tank body directly acts on the internal granular materials, the wet filter cakes of the internal materials are gradually crushed along with the removal of the solvent, and are vibrated and rolled in the tank body to gradually form a fluidized state, the heat transfer efficiency and the mass transfer efficiency of the tank body are obviously improved, so the drying speed is higher, meanwhile, due to the collision of the inner wall of the tank body, the possibly existing wet material blocks are completely crushed, finally, the uniformly dried powder catalyst with excellent fluidity is formed, and then the formed uniformly dried powder catalyst is discharged through the discharge pipe 11.
The height of each spiral supporting leg 10 can be adjusted in the unloading process, so that the whole tank body is slightly inclined towards the discharge hole, and the oscillation experiment table is opened to carry out slow oscillation, so that the catalyst is completely discharged.
[ example two ]
As shown in fig. 2, the tank body is a cylindrical barrel, the upper end of the tank body is a closed end, the lower end of the tank body is an open end, and the closed end of the tank body is provided with a feed inlet, an air inlet, a first sight glass mounting port, a second sight glass mounting port and a vacuum interface;
the feeding device is characterized in that a feeding pipe 1 is connected to the feeding hole, an air inlet pipe 2 is connected to the air inlet, a first sight glass seat and a second sight glass seat are respectively installed on the first sight glass installing port and the second sight glass installing port, sight glasses 3 are respectively installed on the sight glass seats, and a vacuumizing pipe 4 is installed on the vacuum interface. The lower ends of the feeding pipe 1, the air inlet pipe 2 and the vacuumizing pipe 4 are all positioned in the inner cavity of the tank body.
And a particle filtering device is arranged at the lower end of the vacuumizing pipe 4, so that materials in the equipment are prevented from being sucked into a vacuum system. The bottom of the tank is provided with a filter plate 14, and the open end of the tank is provided with a bottom end cover (the tank and the bottom end cover are connected into a whole in figure 2), and the bottom end cover is hermetically connected with the open end of the tank through a flange and a gasket. A filtrate outlet is formed in the center of the bottom end cover, and a filtrate pipe 15 is connected to the filtrate outlet.
The lateral wall of the lower part of the tank body is provided with a discharge hole, and the discharge hole is connected with a discharge pipe 11. Since the dried powder is left above the filter plate 14, the discharge port is disposed above the filter plate 14 and near the filter plate 14. The filter plate 14 may be a commercially available product.
A jacket 13 is arranged outside the tank body, a liquid inlet 18 and a liquid outlet 12 are arranged on the jacket 13, and hot liquid can be introduced into the jacket 13 for heating and cold liquid can be introduced into the jacket 13 for refrigerating.
A plurality of support legs 7 are arranged below the tank body, the upper ends of the support legs 7 are connected with the lower end of the tank body, and the lower ends of the support legs are fixed on a vibration spring 16 through bolts. The vibration spring 16 may be a large-diameter spring or a plurality of small-diameter springs uniformly distributed on the circumference.
The base comprises a supporting platform 9, and the lower end of the vibration spring 16 is fixedly connected to the supporting platform 9. The supporting platform 9 can be an integral platform or a plurality of separate platforms, if the vibrating spring 16 is a plurality of small-diameter springs uniformly distributed on the circumference, the supporting platform 9 can be correspondingly and respectively arranged under each small-diameter spring, and certainly, all the small-diameter springs can also be arranged on one large supporting platform.
A spiral supporting foot 10 is arranged under each supporting platform 9. The inclination angle of the tank body can be adjusted by adjusting the supporting height of each spiral supporting foot 10, so that the materials can be conveniently discharged from the discharge hole.
And a vibration motor 17 is arranged below the tank body and drives the whole tank body to vibrate in the vertical direction. Since the filtrate outlet is arranged at the center of the bottom end cover, the vibration motor cannot be directly connected with the bottom end cover, and therefore, a motor mounting structure 19 is connected below the bottom end cover. The bottom end cap is connected to the vibration motor 17 through a motor mounting structure 19.
Specifically, the motor mounting structure 19 is a cylindrical structure, the upper end of the motor mounting structure is fixedly connected with the bottom end cover, the lower end of the motor mounting structure is fixedly connected with the upper end of the vibration motor 17, and the bottom end cover, the motor mounting structure 19 and the vibration motor 17 are coaxially arranged. A hole is formed in the side surface of the motor mounting structure 19, and the filtrate pipe 15 penetrates into the motor mounting structure 19 from the upper end of the motor mounting structure 19 and penetrates out of the motor mounting structure 19 from the hole in the side surface. Because the tank body is supported by the vibration spring, the tank body can be driven to vibrate when the vibration motor 17 vibrates.
The use method of the device is as follows:
in the preparation process of the polyolefin catalyst, the slurry of the loaded catalyst prepared from a synthesis reaction kettle is added into a tank body through a feed pipe 1, standing and settling are carried out, particles are left above a filter plate 14, the solvent flows into the lower part of the filter plate 14 and is discharged through a filter liquid pipe 15, so that the solvent is filtered and discharged, then the solvent is added through the feed pipe 1, a vibration motor 17 is started, the tank body is driven by the vibration motor 17 to generate vertical vibration, the inner wall of the tank body and the filter plate 14 directly act on the material in the tank body to enable the material to vibrate to form uniform slurry, so that the material in the tank body is washed, then the standing and settling are carried out, the solvent is filtered and discharged, the steps of washing, standing and settling and solvent filtering and discharging are repeated for a plurality of times, then the vibration motor 17 is started, and hot liquid is introduced into a jacket 13 for heating (because the solvent is required to be gasified through heating), and the vacuum pumping is carried out through the vacuum pumping pipe 4 so that the gasified solvent is discharged out of the tank body.
Because the tank body and the filter plate directly act on the internal granular materials, the wet filter cakes of the internal materials are gradually crushed along with the removal of the solvent, and vibrate and roll in the tank body to gradually form a fluidized state, the heat transfer efficiency and the mass transfer efficiency of the fluidized state are obviously improved, so the drying speed is higher, meanwhile, due to the collision of the inner wall of the tank body, the wet material blocks which possibly exist are completely crushed, finally, the uniform dry powder catalyst with excellent fluidity is formed, the formed uniform dry powder catalyst is discharged through the discharge pipe 11, the height of the supporting platform 9 can be adjusted in the discharging process, the whole tank body is slightly inclined towards the discharge port, the vibrating motor 17 is started to slowly vibrate, and the materials are completely discharged.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "connected" and "connected" are to be interpreted broadly, e.g., as being fixed or detachable or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the description of the present invention, unless otherwise specified, the terms "upper", "lower", "left", "right", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.
Finally, it should be noted that the above-mentioned technical solution is only one embodiment of the present invention, and it will be apparent to those skilled in the art that various modifications and variations can be easily made based on the application method and principle of the present invention disclosed, and the method is not limited to the above-mentioned specific embodiment of the present invention, so that the above-mentioned embodiment is only preferred, and not restrictive.
Claims (12)
1. A powder treatment equipment is characterized in that: the powder processing apparatus includes: the device comprises a tank body, a filtering mechanism, an oscillating mechanism and a temperature control mechanism;
the tank body is a closed container;
the filtering mechanism is arranged in the inner cavity of the tank body and is used for filtering out a solvent in the tank body;
the oscillating mechanism is connected with the tank body and is used for driving the tank body to oscillate;
the temperature control mechanism is arranged outside the tank body or in the inner cavity and used for controlling the temperature of the materials in the tank body.
2. The powder processing apparatus according to claim 1, wherein: the tank body is provided with a feed inlet, an air inlet, a vacuum interface and a discharge hole;
a feeding pipe, an air inlet pipe, a vacuum connector and a discharging pipe are respectively arranged on the feeding hole, the air inlet, the vacuum connector and the discharging hole;
the lower ends of the feeding pipe, the air inlet pipe and the vacuumizing pipe are all positioned in the inner cavity of the tank body.
3. The powder processing apparatus according to claim 2, wherein: a sight glass mounting opening is formed in the tank body, and a sight glass seat is mounted on the sight glass mounting opening;
the sight glass is installed on the sight glass seat through a flange and a sealing structure.
4. The powder processing apparatus according to claim 3, wherein: the vacuum-pumping pipe is arranged on the vacuum-pumping interface through a flange and a sealing structure;
and a particle filtering device is arranged at one end of the vacuumizing pipe, which is positioned in the inner cavity of the tank body.
5. The powder processing apparatus according to claim 4, wherein: a base is arranged below the oscillating mechanism;
the base comprises a support platform;
and a plurality of spiral supporting feet are connected below the supporting platform.
6. The powder processing apparatus according to claim 5, wherein: the tank body is a cylindrical barrel, the lower end of the tank body is a closed end, the upper end of the tank body is an open end, and a top cover is arranged at the open end of the tank body; the top cover is connected with the opening end through a flange and a sealing structure;
the filtering mechanism adopts a filtering rod;
the top cover is provided with a feed inlet, an air inlet, a sight glass mounting port, a vacuum interface and a filter rod mounting port; a filter rod is arranged on the filter rod mounting opening;
the lower end of the filter rod is positioned in the inner cavity of the tank body, and the filter head of the filter rod is close to the bottom of the tank body;
a discharge hole is formed in one side of the bottom of the tank body;
the temperature control mechanism adopts an electric heating sleeve, and the electric heating sleeve is arranged outside the tank body.
7. The powder processing apparatus according to claim 6, wherein: the oscillation mechanism adopts an oscillation experiment table;
the lower end of the tank body is provided with a plurality of support legs, and the lower ends of all the support legs are fixedly connected to the oscillation experiment table;
the lower end of the vibration experiment table is fixedly arranged on the upper end face of the supporting platform.
8. The powder processing apparatus according to claim 5, wherein: the tank body is a cylindrical barrel, the upper end of the tank body is a closed end, and the lower end of the tank body is an open end; a feed inlet, an air inlet, at least two sight glass mounting ports and a vacuum interface are formed in the closed end of the tank body;
a bottom end cover is arranged at the opening end of the tank body and is connected with the opening end of the tank body through a flange and a sealing structure;
the filter mechanism adopts a filter plate and a filter liquid pipe, and the filter plate is arranged at the bottom in the inner cavity of the tank body; a filtrate outlet is formed in the center of the bottom end cover, and a filtrate pipe is connected to the filtrate outlet;
a discharge hole is formed in the side wall of the lower part of the tank body; the discharge port is arranged above the filter plate and close to the filter plate;
the temperature control mechanism adopts a jacket which is arranged outside the tank body;
the jacket is provided with a liquid inlet and a liquid outlet.
9. The powder processing apparatus according to claim 8, wherein: a plurality of support legs are arranged below the tank body, the upper ends of the support legs are connected with the lower end of the tank body, and the lower ends of the support legs are connected with the vibration spring;
the lower end of the vibration spring is fixedly connected to the supporting platform;
the oscillating mechanism adopts a vibrating motor;
a motor mounting structure is connected below the bottom end cover;
the motor mounting structure is of a cylindrical structure, the upper end of the motor mounting structure is fixedly connected with the bottom end cover, the lower end of the motor mounting structure is fixedly connected with the upper end of the vibration motor, and the bottom end cover, the motor mounting structure and the vibration motor are coaxially arranged;
the side surface of the motor mounting structure is provided with a hole, the filtrate pipe penetrates into the motor mounting structure from the upper end of the motor mounting structure, and penetrates out of the motor mounting structure from the hole on the side surface.
10. The powder processing apparatus according to any one of claims 3 to 9, wherein: the sealing structures are static sealing structures, and each static sealing structure comprises a gasket, a sealing ring or a sealing glue.
11. A powder processing method implemented by the powder processing apparatus according to any one of claims 1 to 10, characterized in that: the method comprises the following steps:
(1) adding the raw materials into a tank body through a feeding pipe, standing for sedimentation, and then filtering and discharging the solvent through a filtering mechanism;
(2) adding a solvent through a feeding pipe, starting an oscillating mechanism, enabling a tank body to make oscillating motion under the driving of the oscillating mechanism, directly acting the inner wall of the tank body on the material in the tank body, oscillating the material to form uniform slurry, standing and settling, and filtering and discharging the solvent through a filtering mechanism;
(3) repeating the step (2) N times;
(4) starting the oscillating mechanism, simultaneously starting the temperature control mechanism to heat the tank body, and discharging the gasified solvent out of the tank body through a vacuum-pumping pipe to finally form a uniformly dried powder material;
(5) and discharging the powder material from the discharge pipe.
12. The powder processing method according to claim 11, wherein: the operation of step (5) further comprises:
in the discharging process, the height of each spiral supporting leg is adjusted, so that the whole tank body is inclined towards the discharging hole, and the oscillating mechanism is opened to slowly oscillate, so that the powder material is completely discharged.
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| CN202011167220.5A CN114471307A (en) | 2020-10-27 | 2020-10-27 | Powder treatment equipment and method |
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| CN202011167220.5A CN114471307A (en) | 2020-10-27 | 2020-10-27 | Powder treatment equipment and method |
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Cited By (1)
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| CN117482887A (en) * | 2023-12-29 | 2024-02-02 | 江苏长泰药业股份有限公司 | Microsphere drying, curing and forming method and device |
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Application publication date: 20220513 |