CN211330294U - Production system for wax micro powder with set particle size - Google Patents
Production system for wax micro powder with set particle size Download PDFInfo
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- CN211330294U CN211330294U CN201922095725.4U CN201922095725U CN211330294U CN 211330294 U CN211330294 U CN 211330294U CN 201922095725 U CN201922095725 U CN 201922095725U CN 211330294 U CN211330294 U CN 211330294U
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Abstract
The utility model discloses a production system for wax micro powder with set particle size, which comprises a screening device, a driving motor and an induced draft device, wherein the screening device comprises a shell and a screen mesh which is arranged in the shell in a rotating way, the screen mesh is provided with an inner cavity, and an output shaft of the driving motor is connected to the screen mesh and is used for driving the screen mesh to rotate; a separation cavity is formed between the screen and the shell, a feed inlet is arranged on the shell, and the feed inlet is communicated with the separation cavity; a coarse material outlet is arranged at the bottom of the shell and communicated with the separation cavity; the induced draft device comprises an induced draft fan and a cyclone separator, wherein an inlet of the induced draft fan is communicated with an exhaust pipe of the cyclone separator, and a taper pipe at the lower end of the cyclone separator is formed into a discharge hole. The wax micro powder production system can be used for smoothly separating the wax micro powder within a set particle size range.
Description
Technical Field
The utility model relates to a production system of settlement particle size wax miropowder.
Background
The wax micropowder refers to wax raw materials which are processed to the particle size of 100nm-100 mu m, and the surface molecular arrangement, the electronic distribution structure and the crystal structure of the wax raw materials are changed after the wax raw materials are pulverized, so that the wax micropowder has peculiar surface effect and small-size effect, and more importantly, the ultrafine powder has a series of physical, chemical, surface and interfacial properties compared with the conventional materials. The wax micronized quartz wax has excellent physical and chemical properties such as scratch resistance, wear resistance, stability, anti-adhesion and the like, and is widely applied to the fields of leather, printing ink, coating, 3D printing, electronic capacitors, solar cell back plates, lithium battery diaphragms and the like.
In the practical application of wax micropowder, wax micropowder with a specific size, such as 40-50 μm wax micropowder, is often required. The most commonly used is for example the sand grain wax, which is added to the coating to make the coating show sand grain effect, and which has particularly strict requirements on the particle size, and cannot have large particle size exceeding the size, nor can it have small particle powder. The powder with special requirements is difficult to realize by a conventional production device, because the sieve pores for filtering wax can be reduced along with the attachment of wax micro powder along with the production of wax by the conventional device, so that the particles under the sieve are finer and finer, and the vibration or beating not only reduces the production efficiency and influences the use effect of a machine, but also has very limited effect.
SUMMERY OF THE UTILITY MODEL
In order to solve the above problem, the utility model provides a wax miropowder production system utilizes this wax miropowder production system can be smoothly with setting for the wax miropowder separation of particle diameter within range, and specific technical scheme is:
a production system of wax micro powder with set particle size comprises a screening device, a driving motor and an induced draft device, wherein the screening device comprises a shell and a screen mesh which is rotationally arranged in the shell, the screen mesh is provided with an inner cavity, and an output shaft of the driving motor is connected to the screen mesh and used for driving the screen mesh to rotate; a separation cavity is formed between the screen and the shell, a feed inlet is arranged on the shell, and the feed inlet is communicated with the separation cavity; a coarse material outlet is arranged at the bottom of the shell and communicated with the separation cavity;
the induced draft device comprises an induced draft fan and a cyclone separator, wherein the cyclone separator is provided with a vertical cylinder which extends along the vertical direction and is closed at the top, an exhaust pipe is arranged in the vertical cylinder, and the exhaust pipe extends upwards to penetrate through the vertical cylinder to form a powder outlet; a powder inlet pipe is arranged at the upper part of the vertical cylinder along the tangential direction and is communicated with an annular cavity between the vertical pipe and the exhaust pipe;
the lower end of the vertical cylinder is provided with a conical pipe extending downwards, the powder inlet pipe is communicated with the inner cavity of the screen, and the exhaust pipe is communicated with the air inlet of the induced draft fan; the lower end of the taper pipe is formed into a discharge hole.
This application can set up two sets of production systems at the during operation, wherein the screen cloth of first set of production system has first settlement mesh number, the screen cloth of second set of production system has the second settlement mesh number, wherein the second is set for mesh number and is less than first settlement mesh number, then send into first set of production system with wax miropowder at first, under the effect of draught fan, separate the primary election material, this primary election material is discharged from cyclone's discharge gate, the granule that is greater than first settlement mesh number in this primary election material has been separated. And then the primary material is sent into a second set of production system, in the second set of production system, the particles smaller than a second set mesh number in the primary material are sucked away by a draught fan and discharged through a discharge hole of a cyclone separator, and the material discharged from a coarse material outlet of the second set of production system becomes the wax micro powder with the particle size between the first set mesh number and the second set mesh number.
During production, the wax micro powder can also pass through the second set of production system, particles smaller than the second set mesh number are taken out firstly, the material discharged from the coarse material outlet becomes a primary material, then the primary material passes through the first set of production system, and the material discharged from the discharge port of the cyclone separator is the wax micro powder with the particle size between the first set mesh number and the second set mesh number.
Of course, the same production system can be used, and the screens with different meshes can be replaced to separate the particles with different particle sizes in the wax micro powder.
The wax micro powder with the set particle size range can be smoothly produced by utilizing the method.
Specifically, the outer shell of the screening device comprises a first end plate, a second end plate and a middle plate part, wherein the first end plate and the second end plate extend in the vertical direction and are arranged in parallel, the middle plate part is arranged between the first end plate and the second end plate, the first end plate and the second end plate are arranged at intervals along the extending direction of a reference axis, and the reference axis extends in the horizontal direction; the two opposite ends of the middle plate part are respectively and fixedly arranged on the first end plate and the second end plate;
the screen comprises a circular filter screen, a first connecting plate and a second connecting plate, wherein the first connecting plate and the second connecting plate are fixedly connected to the two ends of the filter screen in the axial direction; the short shaft is rotatably supported on the first end plate and extends out of the first end plate to be connected with a driving motor; the hollow shaft is rotatably supported on the second end plate and extends out of the second end plate to be communicated with a powder inlet pipe of the cyclone separator, and the hollow shaft is communicated with an inner cavity of the screen.
This design can form the annular at the separation chamber between screen cloth and the shell, and wax miropowder rotates along with the screen cloth after the feed inlet enters into the separation chamber, when the wax miropowder granule that bonds in the screen cloth outside rotates the bottom along with the screen cloth, can drop from the screen cloth under the effect of gravity, has reduced the amount of adhering to of wax miropowder granule on the screen cloth, can prolong the live time of equipment effectively from this.
Furthermore, in order to enable the screen mesh to smoothly rotate, a shaft end connecting assembly is arranged on the outer side of the second end plate, the shaft end connecting assembly comprises a first sleeve fixed on the outer side of the second end plate, a second sleeve connected to the first sleeve and a transition pipe connected to the second sleeve, and the first sleeve, the second sleeve and the transition pipe are coaxially arranged and extend along the direction of a reference axis; the inner cavities of the first sleeve, the second sleeve and the transition pipe form a shaft hole together, a hollow shaft is inserted into the shaft hole in a sealing mode, and the screen can rotate relative to the shaft end connecting assembly; the transition pipe is fixedly connected with a discharge pipe which is communicated with a powder inlet pipe of the cyclone separator. The design can ensure that the screen mesh smoothly rotates, and simultaneously ensure that the inner cavity of the screen mesh is communicated with the induced draft fan through the hollow shaft, so that the materials entering the screen mesh can be smoothly discharged.
Further, in order to effectively seal the hollow shaft, a sealing ring is arranged between the first sleeve and the hollow shaft, a lip-shaped sealing ring is arranged between the second sleeve and the hollow shaft, and the hollow shaft is rotatably supported in the transition pipe through a second bearing; a back-blowing pipe is arranged on the second sleeve, the back-blowing pipe penetrates through the wall of the second sleeve, and the back-blowing pipe extends out of the second sleeve and then is connected with a first compressed air device; the blowback pipe is closer to the second end plate than the lip seal ring in the reference axis direction.
Furthermore, in order to enable the wax micro powder outside the screen mesh to be smoothly separated from the screen mesh, the screening device also comprises a blow-off pipe, one end of the blow-off pipe is positioned in the inner cavity of the screen mesh, the other end of the blow-off pipe penetrates through the inner cavity of the hollow shaft and then extends into the transition pipe, and then penetrates through the pipe wall of the transition pipe to form a blow-off air inlet, the blow-off pipe is fixedly connected to the transition pipe and is not in contact with the hollow shaft, and the blow-off air inlet is communicated with a second compressed air device; one end of the blow-off pipe, which is positioned in the inner cavity of the screen, is provided with an air injection hole.
Specifically, this blow-off pipe includes the porous pipe, connect the return bend, interior sleeve pipe and the fixed pipe of connecting in proper order, and wherein the porous pipe is located the inner chamber of screen cloth, has seted up the fumarole towards the below on this porous pipe, and this interior sheathed tube one end is played the pipe through the connection and is communicated this porous pipe, and this interior sheathed tube other end passes and stretches into in the inner chamber of transition pipe behind the inner chamber of hollow shaft, and this fixed pipe runs through the pipe wall of this transition pipe, and this fixed pipe is sealed connection to this interior sleeve pipe through the screw short circuit, and the one end that this fixed pipe is located the outside of transition pipe forms into the blow-off air.
The blowing-off pipe can continuously blow off compressed air to the screen, so that the wax micro powder adhered on the screen is easier to fall off from the screen, the blocking time of the screen is effectively prolonged, and the production efficiency is improved.
Further, the aperture of the air injection hole is 1.5mm-3mm, and the blow-off pipe is used for injecting compressed air with the pressure of 0.1-0.8Mpa outwards. Under these conditions, the fine wax powder adhered to the screen can be substantially blown off from the screen.
Specifically, the intermediate plate portion includes:
the filter screen comprises a semicircular arc plate, a filter screen cover and a filter screen, wherein the semicircular arc plate is in a semicircular arc shape protruding upwards, two ends of the semicircular arc plate in the circumferential direction face downwards, and the semicircular arc plate is positioned above the filter screen; the two ends of the semicircular arc plate are respectively formed into a first end part and a second end part, and the width direction of the semicircular arc plate extends along the extension direction of the reference axis;
the first end part of the outer inlet vertical plate extends downwards along the vertical direction, and the outer inlet vertical plate extends along the extension direction of the reference axis; the two ends of the outer inlet vertical plate in the horizontal direction are respectively connected to the first end plate and the second end;
the inner inlet vertical plate is parallel to the outer inlet vertical plate, and in the horizontal direction, the inner inlet vertical plate is positioned on one side of the outer inlet vertical plate, which faces the second end part, and the inner inlet vertical plate extends along the extension direction of the reference axis; the two ends of the inner inlet vertical plate in the horizontal direction are respectively connected to the first end plate and the second end;
the top of the inclined inlet plate is positioned on one side, away from the second end, of the outer inlet vertical plate in the horizontal direction, the inclined inlet plate extends along the extension direction of the reference axis, two ends of the inclined inlet plate in the horizontal direction are respectively connected to the first end plate and the second end plate, and the distance between the inclined inlet plate and the inner inlet vertical plate is gradually increased from bottom to top;
the inclined inlet plate and the inner inlet vertical plate form a feeding box, and the feeding box is provided with a feeding cavity; the feed inlet is formed between the inclined inlet plate and the outer inlet vertical plate, faces upwards and is communicated with the feed cavity;
in the horizontal direction, the inner inlet vertical plate is positioned between the outer inlet vertical plate and the filter screen, and the top of the inner inlet vertical plate exceeds the bottom of the outer inlet vertical plate upwards and is lower than the central axis of the filter screen; a feeding channel extending along the up-down direction is formed between the outer inlet vertical plate and the inner inlet vertical plate, and the feeding channel is communicated with the feeding cavity downwards; the feeding channel is communicated with the separation cavity upwards along the rotating direction of the screen;
the intermediate plate portion further includes:
the first discharging side plate is positioned on one side of the inner inlet vertical plate, which faces the second end part, in the horizontal direction; the top of the first discharging side plate is hermetically connected to the inner inlet vertical plate and extends downwards in an inclined mode towards the direction departing from the inner inlet vertical plate; the two ends of the first discharging side plate in the horizontal direction are respectively connected to the first end plate and the second end;
the second discharging side plate is formed by extending the second end part obliquely downwards, and extends obliquely towards the first discharging side plate; the two ends of the second discharging side plate in the horizontal direction are respectively connected to the first end plate and the second end;
a coarse material discharging cavity is formed between the first discharging side plate and the second discharging side plate, and a coarse material outlet is formed at the bottom of the coarse material discharging cavity. When viewed in the vertical direction, the outer inlet vertical plate is positioned between the inclined inlet plate and the inner inlet vertical plate; preferably, the bottom of the outer inlet riser is level with the top of the inclined inlet plate. So that the material entering the feeding box can smoothly enter the separation cavity through the feeding channel.
During production, wax micropowder is firstly put into the feeding box, the wax micropowder in the feeding box is sequentially sucked into the separation cavity for separation by utilizing the negative pressure generated by the draught fan, and the fluctuation of the wax micropowder amount entering the screening device due to the fluctuation of the feeding amount in the feeding process is avoided.
In order to facilitate the wax micro powder deposited in the feeding box, a waste material outlet is arranged at the bottom of the feeding box, and a gate valve is arranged on the waste material outlet.
In order to enable the wax micro powder in the feeding box to enter the separation cavity in a dispersed manner, an air deflector is arranged in the feeding channel and is parallel to the inner inlet vertical plate.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of the present invention.
Figure 2 is an elevation view of a screening device.
Fig. 3 is a view from a-a in fig. 2.
Detailed Description
Referring to fig. 1-3, a system for producing wax micropowder with a set particle size comprises a screening device 20, a driving motor 10 and an air inducing device, wherein the screening device 20 comprises a shell 50 and a screen 60 rotatably arranged in the shell 50, the screen is provided with an inner cavity 600, an output shaft of the driving motor 10 is connected with a speed reducer 12, and an output shaft of the speed reducer 12 is connected to the screen 60 for driving the screen to rotate.
A separation chamber 200 is formed between the screen 60 and the housing 50, and a feed opening 53 is formed in the housing 50, and the feed opening 50 is communicated with the separation chamber 200. At the bottom of the housing is provided a coarse material outlet 54.
The induced draft device includes an induced draft fan 40 and a cyclone separator 30.
The cyclone separator 30 has a vertical cylinder 31 extending in a vertical direction, an exhaust duct 35 is disposed in the vertical cylinder 31, and the exhaust duct 35 extends upward to pass through the vertical cylinder 31 to form a powder outlet 351. A powder inlet pipe 34 is installed on the upper part of the vertical cylinder 31 along the tangential direction, and the powder inlet pipe 34 is communicated with the annular cavity between the vertical pipe and the exhaust pipe.
A downward extending taper pipe 32 is provided at the lower end of the vertical cylinder 31, and the small end of the taper pipe 32 faces downward and forms a separated material outlet 33. The powder inlet pipe 34 is communicated with the inner cavity 600 of the screen, the exhaust pipe 35 is communicated with the air inlet 41 of the induced draft fan 40, and the air outlet 42 of the induced draft fan is connected with a waste material tank 45. The waste tank is used for temporarily storing the wax micro powder sucked by the induced draft fan.
The screening device will be specifically described below. The direction of arrow M in fig. 2 indicates the direction of extension of the reference axis. The reference axis M extends in the horizontal direction.
The housing 50 of the screening device comprises a first 58 and a second 59 end plate extending in a vertical direction and arranged in parallel, and a middle plate portion 51 connected between the first 58 and the second 59 end plate, the first and the second end plate being arranged at an interval in the extension direction of the reference axis M, opposite ends of the middle plate portion 51 being fixedly mounted on the first and the second end plate, respectively.
The intermediate plate portion 51 includes a semicircular plate 511 projecting upward, both ends of the semicircular plate in the circumferential direction are directed downward, and are formed as a first end 5111 and a second end 5112, respectively, and the width direction of the semicircular plate 511 extends in the extending direction of the reference axis.
The first end portion 5111 extends downward along the vertical direction to form an outer inlet riser 516, and the outer inlet riser extends along the extending direction of the reference axis M; the two ends of the outer inlet vertical plate in the horizontal direction are respectively connected to the first end plate and the second end.
The inner inlet riser 514 is parallel to the outer inlet riser, and in the horizontal direction, the inner inlet riser 514 is located on the side of the outer inlet riser 516 facing the second end 5112, and the inner inlet riser 514 extends along the extending direction of the reference axis M. The horizontal ends of the inner inlet riser 514 are connected to the first end plate and the second end plate, respectively.
In the horizontal direction, the top of the inclined inlet plate 515 is located on the side of the outer inlet riser 516 away from the second end, the inclined inlet plate 515 extends along the extending direction of the reference axis, the two ends of the inclined inlet plate in the horizontal direction are respectively connected to the first end plate and the second end, and the distance between the inclined inlet plate 515 and the inner inlet riser 514 gradually increases from bottom to top.
The inclined inlet plate 515 and the inner inlet vertical plate 514 form a feeding box 800, the feeding box 800 has a feeding cavity 801, the feeding hole 53 is formed between the inclined inlet plate and the outer inlet vertical plate, and the feeding hole 53 faces upward and is communicated with the feeding cavity 801.
In the horizontal direction, the inner inlet riser 514 is located between the outer inlet riser 516 and the filter screen 61, and the top 5142 of the inner inlet riser 514 is upward beyond the bottom of the outer inlet riser and is lower than the central axis of the filter screen 61 described below.
A feeding channel 802 extending in the up-down direction is formed between the outer inlet riser 516 and the inner inlet riser 514, and the feeding channel 802 is communicated with the feeding cavity 801 downward; the feed channel 802 communicates with the separation chamber 200 upwardly in the direction of rotation of the screen.
Mounted within feed cavity 801 is air deflection plate 220, which air deflection plate 220 is parallel to the inner inlet riser and is secured to first end plate 58 and second end plate 59.
In the horizontal direction, the first discharging side plate 513 is located on one side of the inner inlet vertical plate 514 facing the second end 5112; the top of the first discharging side plate 513 is hermetically connected to the inner inlet vertical plate 514 and extends obliquely downward in a direction away from the inner inlet vertical plate 514. The two ends of the first discharging side plate 513 in the horizontal direction are connected to the first end plate and the second end, respectively.
The second discharging side plate 512 is formed by extending the second end 5112 obliquely downward, and the second discharging side plate 512 extends obliquely toward the first discharging side plate 513; the two ends of the second discharging side plate 512 in the horizontal direction are respectively connected to the first end plate and the second end.
In this embodiment, the semicircular arc plate 511, the outer vertical inlet plate 516, the inner vertical inlet plate 514, the inclined inlet plate 515, the first lateral discharge plate 513, and the second lateral discharge plate 512 together form the middle plate portion 51.
A coarse material discharging cavity 210 is formed between the first discharging side plate and the second discharging side plate. A discharge cylinder 52 is connected to the first discharge side plate 513 at the lower end of the second discharge side plate 512, and the bottom of the discharge cylinder forms the coarse material outlet 54, i.e. the bottom of the coarse material discharge chamber forms the coarse material outlet.
A waste outlet 55 is provided at the bottom of the feeding cassette 800, and a gate valve 551 is installed on the waste outlet 55.
The screen 60 includes a ring-shaped filter screen 61, and a first connecting plate 62 and a second connecting plate 63 fixedly connected to both ends of the filter screen in the axial direction, and the central axis of the filter screen is parallel to the reference axis M. A reinforcing plate 665 is attached to the outer side of the first connecting plate 62, a stub shaft 64 extending in the direction of the reference axis M is fixedly attached to the reinforcing plate, and a hollow shaft 65 extending in the direction of the reference axis is fixedly attached to the second connecting plate 63. The hollow shaft communicates with the interior chamber 600 of the screen.
A short shaft sleeve 661 is attached to the first end plate 58, the short shaft is supported by the short shaft sleeve 661, and a rubber packing 662 and a first bearing 663 are attached between the short shaft sleeve 661 and the short shaft 65, wherein the first bearing 663 is attached to the outer side of the short shaft sleeve and pressed by the annular end cap 664. The stub shaft is connected to an output shaft of the reduction gear 12. Namely, the short shaft is rotatably supported on the first end plate and extends out of the first end plate to be connected with the driving motor.
On the outside of the second end plate 59, a shaft end connection assembly 67 is provided, the shaft end connection assembly 67 including a first sleeve 671 fixed on the outside of the second end plate, a second sleeve 674 connected to the first sleeve 671, and a transition pipe 677 connected to the second sleeve, the first sleeve 671, the second sleeve 674, and the transition pipe 677 being coaxially arranged and extending in the direction of the reference axis M.
The inner cavities of the first sleeve, the second sleeve and the transition pipe together form a shaft hole, the shaft hole is inserted into the shaft hole, a sealing ring 672 is arranged between the first sleeve and the hollow shaft, a lip-shaped sealing ring 678 is arranged between the second sleeve and the hollow shaft, and the hollow shaft is rotatably supported in the transition pipe through a second bearing 676; an annular seal 673 is mounted between the first sleeve and the second sleeve. I.e. a hollow shaft is sealingly inserted into the shaft bore, and the screen is rotatable relative to the shaft end connection assembly.
A blowback pipe 675 is arranged on the second sleeve, the blowback pipe 675 penetrates through the wall of the second sleeve 674, and the blowback pipe extends out of the second sleeve and then is connected with a first compressed air device. The blowback pipe is closer to the second end plate than the lip seal ring in the reference axis direction.
The transition pipe is fixedly connected with a discharge pipe 38, and the discharge pipe 38 is communicated with the powder inlet pipe 34 of the cyclone separator 30 and communicated with the air inlet of the induced draft fan through the cyclone separator.
The screening device also comprises a blow-off pipe 70, one end of the blow-off pipe is positioned in the inner cavity of the screen, the other end of the blow-off pipe penetrates through the inner cavity of the hollow shaft and then extends into the transition pipe, then penetrates through the pipe wall of the transition pipe to form a blow-off air inlet, the blow-off pipe is fixedly connected to the transition pipe and is not in contact with the hollow shaft, and the blow-off air inlet is communicated with a second compressed air device; one end of the blow-off pipe, which is positioned in the inner cavity of the screen, is provided with an air injection hole. In this embodiment, the orifice diameter of the air ejection hole is 2.0mm, and the blow-off pipe is used to outwardly eject compressed air having a pressure of 0.3 Mpa. It is understood that the aperture of the gas injection holes may also be 1.5mm, 2.2mm, 2.5mm or 3.0mm in other embodiments, although other values between 1.5mm and 3mm are possible. In other embodiments, the pressure of the compressed air injected from the blow-off pipe may be 0.1Mpa, 0.5Mpa, 0.6Mpa or 0.8Mpa, or may be other data between 0.1Mpa and 0.8Mpa according to different requirements.
Specifically, in this embodiment, the blow-off pipe 70 includes a perforated pipe 71, a connecting elbow 72, an inner sleeve 73 and a fixed pipe 76, which are connected in sequence, wherein the perforated pipe 71 is located in the inner cavity of the screen, the perforated pipe 71 is provided with downward air injection holes, one end of the inner sleeve 73 is communicated with the perforated pipe 71 through the connecting play pipe 72, the other end of the inner sleeve 73 passes through the inner cavity of the hollow shaft and then extends into the inner cavity of the transition pipe 677, the fixed pipe 76 penetrates through the pipe wall of the transition pipe 677, the fixed pipe 76 is hermetically connected to the inner sleeve 73 through a short threaded joint 75, and one end of the fixed pipe located outside the transition pipe is formed as a blow-off air inlet 761.
Claims (10)
1. The production system of the wax micropowder with the set particle size is characterized by comprising a screening device, a driving motor and an induced draft device, wherein the screening device comprises a shell and a screen which is rotationally arranged in the shell, the screen is provided with an inner cavity, and an output shaft of the driving motor is connected to the screen and is used for driving the screen to rotate;
a separation cavity is formed between the screen and the shell, a feed inlet is arranged on the shell, and the feed inlet is communicated with the separation cavity; a coarse material outlet is arranged at the bottom of the shell and communicated with the separation cavity;
the induced draft device comprises an induced draft fan and a cyclone separator, wherein the cyclone separator is provided with a vertical cylinder which extends along the vertical direction and is closed at the top, an exhaust pipe is arranged in the vertical cylinder, and the exhaust pipe extends upwards to penetrate through the vertical cylinder to form a powder outlet; a powder inlet pipe is arranged at the upper part of the vertical cylinder along the tangential direction and is communicated with an annular cavity between the vertical pipe and the exhaust pipe;
the lower end of the vertical cylinder is provided with a conical pipe extending downwards, the powder inlet pipe is communicated with the inner cavity of the screen, and the exhaust pipe is communicated with the air inlet of the induced draft fan; the lower end of the taper pipe is formed into a discharge hole.
2. The production system of claim 1, wherein the housing of the screening device includes a first end plate, a second end plate and a middle plate portion disposed between the first end plate and the second end plate, the first end plate and the second end plate being spaced apart along a direction of extension of a reference axis, the reference axis extending along a horizontal direction; the two opposite ends of the middle plate part are respectively and fixedly arranged on the first end plate and the second end plate;
the screen comprises a circular filter screen, a first connecting plate and a second connecting plate, wherein the first connecting plate and the second connecting plate are fixedly connected to the two ends of the filter screen in the axial direction; the short shaft is rotatably supported on the first end plate and extends out of the first end plate to be connected with a driving motor; the hollow shaft is rotatably supported on the second end plate and extends out of the second end plate to be communicated with a powder inlet pipe of the cyclone separator, and the hollow shaft is communicated with an inner cavity of the screen.
3. The production system according to claim 2,
a shaft end connecting assembly is arranged on the outer side of the second end plate, the shaft end connecting assembly comprises a first sleeve fixed on the outer side of the second end plate, a second sleeve connected to the first sleeve and a transition pipe connected to the second sleeve, and the first sleeve, the second sleeve and the transition pipe are coaxially arranged and extend along the direction of a reference axis; the inner cavities of the first sleeve, the second sleeve and the transition pipe form a shaft hole together, a hollow shaft is inserted into the shaft hole in a sealing mode, and the screen can rotate relative to the shaft end connecting assembly; the transition pipe is fixedly connected with a discharge pipe which is communicated with a powder inlet pipe of the cyclone separator.
4. The production system according to claim 3,
a sealing ring is arranged between the first sleeve and the hollow shaft, a lip-shaped sealing ring is arranged between the second sleeve and the hollow shaft, and the hollow shaft is rotatably supported in the transition pipe through a second bearing;
a back-blowing pipe is arranged on the second sleeve, the back-blowing pipe penetrates through the wall of the second sleeve, and the back-blowing pipe extends out of the second sleeve and then is connected with a first compressed air device; the blowback pipe is closer to the second end plate than the lip seal ring in the reference axis direction.
5. The production system according to claim 3 or 4,
the screening device also comprises a blow-off pipe, one end of the blow-off pipe is positioned in the inner cavity of the screen, the other end of the blow-off pipe penetrates through the inner cavity of the hollow shaft and then extends into the transition pipe, then penetrates through the pipe wall of the transition pipe to form a blow-off air inlet, the blow-off pipe is fixedly connected to the transition pipe and is not in contact with the hollow shaft, and the blow-off air inlet is communicated with a second compressed air device; one end of the blow-off pipe, which is positioned in the inner cavity of the screen, is provided with an air injection hole.
6. The production system according to claim 5,
this blow-off pipe is including the porous pipe that the order is connected, the connection return bend, interior sleeve pipe and fixed pipe, wherein the porous pipe is located the inner chamber of screen cloth, seted up the fumarole towards the below on this porous pipe, this interior sheathed tube one end is played the pipe through the connection and is communicate this porous pipe, this interior sheathed tube other end stretches into the inner chamber of transition pipe after passing the inner chamber of hollow shaft, this fixed pipe runs through the pipe wall of this transition pipe, this fixed pipe is through screw short circuit sealing connection to this interior sleeve pipe on, the one end that this fixed pipe is located the outside of transition pipe forms to blow off the air inlet.
7. The production system according to claim 6,
the aperture of the air injection hole is 1.5mm-3mm, and the blow-off pipe is used for injecting compressed air with the pressure of 0.1-0.8Mpa outwards.
8. The production system according to claim 2,
the intermediate plate portion includes:
the filter screen comprises a semicircular arc plate, a filter screen cover and a filter screen, wherein the semicircular arc plate is in a semicircular arc shape protruding upwards, two ends of the semicircular arc plate in the circumferential direction face downwards, and the semicircular arc plate is positioned above the filter screen; the two ends of the semicircular arc plate are respectively formed into a first end part and a second end part, and the width direction of the semicircular arc plate extends along the extension direction of the reference axis;
the first end part of the outer inlet vertical plate extends downwards along the vertical direction, and the outer inlet vertical plate extends along the extension direction of the reference axis; the two ends of the outer inlet vertical plate in the horizontal direction are respectively connected to the first end plate and the second end;
the inner inlet vertical plate is parallel to the outer inlet vertical plate, and in the horizontal direction, the inner inlet vertical plate is positioned on one side of the outer inlet vertical plate, which faces the second end part, and the inner inlet vertical plate extends along the extension direction of the reference axis; the two ends of the inner inlet vertical plate in the horizontal direction are respectively connected to the first end plate and the second end;
the top of the inclined inlet plate is positioned on one side, away from the second end, of the outer inlet vertical plate in the horizontal direction, the inclined inlet plate extends along the extension direction of the reference axis, two ends of the inclined inlet plate in the horizontal direction are respectively connected to the first end plate and the second end plate, and the distance between the inclined inlet plate and the inner inlet vertical plate is gradually increased from bottom to top;
the inclined inlet plate and the inner inlet vertical plate form a feeding box, and the feeding box is provided with a feeding cavity; the feed inlet is formed between the inclined inlet plate and the outer inlet vertical plate, faces upwards and is communicated with the feed cavity;
in the horizontal direction, the inner inlet vertical plate is positioned between the outer inlet vertical plate and the filter screen, and the top of the inner inlet vertical plate exceeds the bottom of the outer inlet vertical plate upwards and is lower than the central axis of the filter screen; a feeding channel extending along the up-down direction is formed between the outer inlet vertical plate and the inner inlet vertical plate, and the feeding channel is communicated with the feeding cavity downwards; the feeding channel is communicated with the separation cavity upwards along the rotating direction of the screen;
the intermediate plate portion further includes:
the first discharging side plate is positioned on one side of the inner inlet vertical plate, which faces the second end part, in the horizontal direction; the top of the first discharging side plate is hermetically connected to the inner inlet vertical plate and extends downwards in an inclined mode towards the direction departing from the inner inlet vertical plate; the two ends of the first discharging side plate in the horizontal direction are respectively connected to the first end plate and the second end;
the second discharging side plate is formed by extending the second end part obliquely downwards, and extends obliquely towards the first discharging side plate; the two ends of the second discharging side plate in the horizontal direction are respectively connected to the first end plate and the second end;
a coarse material discharging cavity is formed between the first discharging side plate and the second discharging side plate, and a coarse material outlet is formed at the bottom of the coarse material discharging cavity.
9. The production system according to claim 8,
the bottom of the feeding box is provided with a waste outlet, and the waste outlet is provided with a gate valve.
10. The production system according to claim 8,
and an air deflector is arranged in the feeding channel and is parallel to the inner inlet vertical plate.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922095725.4U CN211330294U (en) | 2019-11-28 | 2019-11-28 | Production system for wax micro powder with set particle size |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922095725.4U CN211330294U (en) | 2019-11-28 | 2019-11-28 | Production system for wax micro powder with set particle size |
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| CN211330294U true CN211330294U (en) | 2020-08-25 |
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