CN117379908A - A plastic particle dust removal system and process - Google Patents

Abstract

The invention discloses a plastic particle dust removal system, which particularly relates to the technical field of dust purification, and comprises a shell, an installation seat, a rotating shaft, a rotating seat, an active carbon storage tank, a motor, an air inlet pipe, a sealing unit and a transition pipe; the air inlet of the fan is communicated with the transition pipe, and the air outlet of the fan is communicated with the air outlet. The motor is arranged to drive the rotating shaft to rotate, so that the plurality of active carbon storage tanks can alternately rotate to the position right above the air inlet pipe, and the active carbon in the active carbon storage tanks can be alternately replaced without manual replacement; through setting up sealing unit for the axis of rotation is rotatory, and when the intake pipe was kept away from to the active carbon holding vessel, the mouth of pipe of intake pipe was in sealing state, avoided the dust to get into in the intake pipe from the mouth of pipe of open intake pipe.

Description

A plastic particle dust removal system and process

Technical field

The present invention relates to the field of dust technology, and more specifically, the present invention relates to a plastic particle dust removal system and process.

Background technique

During the processing of plastic particles, dust is often generated, which can easily cause safety hazards to the health of workers. Therefore, the dust needs to be purified during the preparation of plastic particles. When dust is treated, activated carbon is generally used. For example, an activated carbon air purifier disclosed in Chinese Patent Publication No. CN204723950U includes an air suction pipe, an activated carbon filter device, a fan, a gas-liquid mixing device, a gas-liquid Separation device and discharge device; the activated carbon filter device is installed on the air suction pipe, the fan is located on the rear side of the activated carbon filter device, the air suction pipe is connected to the gas-liquid mixing device, and the gas-liquid separation device is between the gas-liquid mixing device and the discharge device; so The activated carbon filter device includes a hollow columnar filter and a light source located in the filter. The filter includes an activated carbon layer and a filter paper layer located outside the activated carbon layer. The activated carbon layer is loaded with activated carbon, and the surface of the activated carbon is coated with Covered with photocatalyst, the activated carbon layer faces the light source.

In the above-mentioned prior art, since activated carbon has a certain degree of adsorption saturation, when the adsorption is saturated, the permeability of the air flow through the activated carbon decreases, and the adsorption performance decreases. Therefore, the adsorbed saturated activated carbon needs to be replaced in time, otherwise it will affect the dust removal. Treatment efficiency, but currently, activated carbon still needs to be replaced manually, resulting in operational inconvenience, and timely replacement of activated carbon cannot be guaranteed, which in turn affects the purification effect of dust-containing air.

Contents of the invention

In order to overcome the above-mentioned defects of the prior art, embodiments of the present invention provide a plastic particle dust removal system and process. The technical problem to be solved by the present invention is that the prior art is inconvenient to replace activated carbon in a timely manner, which affects the air purification treatment effect. .

In order to achieve the above object, the present invention provides the following technical solution: a plastic particle dust removal system, including a shell provided with an air outlet, and also includes:

A mounting seat is installed vertically on the top of the housing. The mounting seat is coaxially connected to a rotating shaft. The upper end of the rotating shaft is fixed with a rotating base. The rotating base is equipped with a plurality of activated carbon arrays along its axial direction. Storage tank, the rotating shaft is driven to rotate by a motor installed in the housing;

An air inlet pipe is installed vertically through the shell and corresponds to the activated carbon storage tank. The air inlet pipe is provided with a sealing unit. The sealing unit is used to seal the air inlet pipe when the rotating base rotates. On the upper pipe mouth, the lower end of the intake pipe is connected with a transition pipe;

For a fan installed in the casing, the air inlet of the fan is connected to the transition pipe, and the air outlet of the fan is connected to the air outlet.

Preferably, the housing is provided with a partition, which divides the inside of the housing into an installation cavity and a purification cavity from top to bottom. The purification cavity is connected with the air outlet, and the fan is The air outlet penetrates into the purification chamber.

Preferably, the transition pipe is horizontally connected to a rotation shaft, and the position of the rotation shaft located inside the transition pipe is fixedly connected to a rotating plate. The outer wall of the transition pipe is fixed with two lug blocks, and the two lug blocks are fixedly connected to the outer wall of the transition pipe. A fixed shaft is connected horizontally together, and the fixed shaft is equipped with a sliding sleeve that can slide freely. The sliding sleeve is equipped with a proximity switch, and one of the ear blocks is provided with an induction block used in conjunction with the proximity switch. The rotating shaft and the sliding sleeve are connected through a transmission unit, so that when the rotating shaft rotates, the sliding sleeve is driven to move synchronously.

Preferably, the transmission unit includes a gear sleeved on one end of the rotating shaft, the sliding sleeve is integrally connected to a rack, and the gear meshes with the rack.

Preferably, the fixed shaft sleeve is surrounded by a return spring, and both ends of the return spring elastically resist the sliding sleeve and the ear block respectively.

Preferably, the upper and lower sides of the activated carbon storage tank are open and detachably connected with a filter cover.

Preferably, the sealing unit includes:

A movable tube is set on the upper end of the air inlet pipe, and the movable pipe can slide freely on the air inlet pipe;

A fixed plug coaxially fixed to the upper nozzle of the intake pipe, and the fixed plug is coaxially provided with a first communication hole in the form of a through hole;

A floating plug is coaxially fixed in the movable tube and located above the fixed plug. A plurality of second communication holes are provided on the end surface of the floating plug. The first communication hole and the second communication hole are staggered settings;

A lifting mechanism used to drive the end faces of the floating plug and the fixed plug to offset each other after the rotating base is rotated through a fixed angle.

Preferably, the lifting mechanism includes:

A floating sleeve is set on the mounting base and can slide freely up and down. The floating sleeve forms a key connection with the mounting base, and the floating sleeve is fixedly connected to the movable tube;

An annular protrusion coaxially fixed to the upper end surface of the floating sleeve, the annular protrusion having a plurality of slots along its axial array;

A plurality of mounting rods vertically fixed to the rotating base, the lower ends of the mounting rods are rotatably embedded with balls, and the balls roll alternately in the upper end surface of the annular protrusion and in the slot;

The driving spring is wrapped around the mounting base, and the two ends in the elastic direction of the driving spring elastically push against the floating sleeve and the outer shell respectively.

Preferably, the upper end surface of the movable tube is fixedly connected to a fixed plate, and the lower end of the activated carbon storage tank is provided with a rubber ring. The lower end surface of the rubber ring can be connected with the top surface of the fixed plate in friction.

A plastic particle dust removal process, which uses the above-mentioned plastic particle dust removal system, and its removal process includes:

The fan is started and is in a continuous working state. The fan generates a negative pressure airflow in the air inlet pipe and causes the dust-containing air outside the housing to flow in through the filter hole on the filter cover of the activated carbon storage tank. In the activated carbon storage tank, it enters the movable pipe and the air inlet pipe in sequence, and then enters the fan through the transition pipe, so that the airflow enters the air outlet of the fan, and then enters the purification chamber inside, and then flows out from the air outlet to the external environment. During this process, the dust in the air will be adsorbed and filtered by the activated carbon in the activated carbon storage tank;

When the activated carbon adsorption in the activated carbon storage tank is not saturated, the air flow through the activated carbon is larger, so the impact force of the air flow on the rotating plate is larger, so that the rotating plate will be in a vertical state. At this time, the rotating plate will be in a vertical state. The proximity switch is far away from the induction block, and no induction signal is generated by the proximity switch. On the contrary, when the activated carbon in the activated carbon storage tank is saturated, the flow rate of the air flow through the activated carbon decreases, resulting in a greater impact force of the air flow on the rotating plate. small, at this time, the elastic resisting force of the return spring on the sliding sleeve is greater than the impact force of the air flow on the rotating plate, so the return spring will drive the sliding sleeve to move, so that the rack and the The gear meshes and drives the rotating plate to rotate. At the same time, the proximity switch will move in the direction of the induction block, so that the proximity switch generates an induction signal. After the external control module receives the induction signal of the proximity switch, The control module will control the starting of the motor;

The output shaft of the motor rotates and drives the rotating shaft to rotate, so that the ball rolls from the slot along the slope of the slot to the upper end surface of the annular protrusion, so that the floating sleeve is subjected to The ball moves downward due to the downward extrusion force, so that the transition tube drives the fixed plate to move downward, the rubber ring changes from a compressed state to an expanded state, and at the same time, the floating plug moves downward, and Approaching the fixed plug, when the ball rolls to the upper end surface of the annular protrusion, the end surface of the fixed plug offsets the end surface of the floating plug, so that when the activated carbon storage tank is away from the intake pipe, the The upper nozzle of the intake pipe is in a closed state, and the floating sleeve compresses the driving spring, causing the driving spring to accumulate elastic potential energy. When the output shaft of the motor rotates at a fixed angle, the other activated carbon The storage tank rotates to just above the air inlet pipe. At this time, the ball will roll from the upper end surface of the annular protrusion into the slot, and the elastic potential energy of the driving spring is released, causing the floating sleeve to move toward It moves upward and drives the movable tube to move upward, so that the top surface of the fixed plate is pressed against the rubber ring, and the rubber ring is in a compressed state.

Technical effects and advantages of the present invention:

By setting up a motor to drive the rotating shaft to rotate, multiple activated carbon storage tanks can alternately rotate to just above the air inlet pipe, so that the activated carbon in the activated carbon storage tank can be replaced alternately without manual replacement;

By setting the sealing unit to rotate the rotating shaft, when the activated carbon storage tank is away from the air inlet pipe, the nozzle of the air inlet pipe is in a sealed state to prevent dust from entering the air inlet pipe from the nozzle of the open air inlet pipe;

By arranging the rotating shaft and the rotating plate, when the permeability of the activated carbon in the activated carbon storage tank decreases, the fan power is fixed. At this time, the air flow through the activated carbon storage tank decreases, thereby causing the rotating plate to resist the elastic resistance of the return spring against the sliding sleeve. It rotates under the force, which in turn causes the rotating shaft to rotate and drives the gear to rotate. Through the meshing of the gear and the rack, it can drive the sliding sleeve to move, making the proximity switch close to the sensing block, causing the proximity switch to generate an induction signal, and feed it back to In the external control module, the control module controls the motor to rotate at a fixed angle, so that the position of the activated carbon storage tank can be alternately changed, thus realizing the automatic replacement of the activated carbon storage tank corresponding to the air intake pipe;

By arranging the fixing plate and the rubber ring, since the rubber ring has a certain degree of ductility, when the ball rolls from the inner wall of the slot to the upper end face of the annular protrusion, the rubber ring and the fixing plate remain in an offset state, thereby continuously pressing against the intake pipe and the The activated carbon storage tank is sealed.

Description of the drawings

Figure 1 is a schematic structural cross-sectional view of a plastic particle dust removal system in the present invention;

Figure 2 is an enlarged schematic diagram of the partial structure at A in Figure 1;

Figure 3 is a schematic structural diagram of Figure 1 with the outer shell omitted;

Figure 4 is an enlarged schematic diagram of the partial structure at B in Figure 3;

Figure 5 is a schematic cross-sectional view of part of the structure in Figure 3;

Figure 6 is an enlarged schematic diagram of the local structure at C in Figure 5;

Figure 7 is a schematic side view of the structure in Figure 3.

The reference numbers are: 1-air outlet, 2-casing, 3-purification chamber, 4-partition plate, 5-installation chamber, 6-motor, 7-rotating shaft, 8-mounting base, 9-activated carbon storage tank, 10 -Rotating seat, 11-filter cover, 12-movable pipe, 13-air inlet pipe, 14-transition pipe, 15-fan, 16-gear, 17-ear block, 18-return spring, 19-proximity switch, 20-sliding Sleeve, 21-sensing block, 22-fixed shaft, 23-rack, 24-rubber ring, 25-fixing plate, 26-mounting rod, 27-slot, 28-annular protrusion, 29-driving spring, 30- Floating sleeve, 31-ball, 32-rotating shaft, 33-rotating plate, 34-second communication hole, 35-floating plug, 36-fixed plug, 37-first communication hole.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of the present invention.

As shown in Figures 1 to 7, the present invention provides: an indoor air purification system, including a cylindrical shell 2. The air outlet 1 on the shell 2 can be installed through a pipeline (not shown in the figure) or Other devices are connected to the external environment. The top of the housing 2 is vertically provided with a mounting base 8. The mounting base 8 is coaxially connected to a rotating shaft 7 through a mounting bearing. The upper and lower ends of the rotating shaft 7 pass through both sides of the mounting base 8 respectively. end, the upper end of the rotating shaft 7 is welded with a rotating base 10. The rotating base 10 is provided with three mounting holes in an axial array. Each mounting hole is inserted with an activated carbon storage tank 9 in a tight fit. The upper and lower sides of the activated carbon storage tank 9 are The filter cover 11 is open and each thread is connected. The space between the filter cover 11 and the activated carbon storage tank 9 is used to store activated carbon particles. In addition, the rotating shaft 7 is driven to rotate by the motor 6 installed in the housing 2;

A partition 4 is installed horizontally in the shell 2. The partition 4 divides the inside of the shell 2 from top to bottom into an installation cavity 5 and a purification cavity 3. The purification cavity 3 is connected with the air outlet 1. The shell 2 is vertically provided with an inlet. The air pipe 13, when the motor 6 is started, can drive the rotating base 10 to rotate. When the rotating base 10 rotates, the three activated carbon storage tanks 9 can alternately rotate to directly above the air inlet pipe 13. The lower end of the air inlet pipe 13 is connected with a transition pipe. 14. The transition pipe 14 is located in the installation cavity 5. A fan 15 is installed in the installation cavity of the housing 2. The air inlet of the fan 15 is connected to the transition pipe 14, and the air outlet of the fan 15 penetrates into the purification cavity 3 and is connected with the air outlet. 1 is connected, when the fan 15 starts, the fan 15 generates a negative pressure airflow in the air inlet pipe 13, and causes the dust-containing air outside the housing 2 to flow into the activated carbon storage tank 9 through the filter hole on the filter cover 11 of the activated carbon storage tank 9, and then It enters the transition pipe 14, and then enters the fan 15, so that the airflow enters the air outlet of the fan 15, then enters the purification chamber 3, and then flows out from the air outlet 1. In this embodiment, the fan 15 is in a continuous working state;

The upper end of the air inlet pipe 13 is equipped with a movable pipe 12 that can slide freely up and down. A fixed plug 36 is coaxially fixed to the upper nozzle of the air inlet pipe 13. The fixed plug 36 is coaxially provided with a first communication hole 37 in the form of a through hole. The movable pipe 12 is coaxially fixed with a floating plug 35 located above the fixed plug 36. A plurality of second communication holes 34 are provided on the end surface of the floating plug 35. The first communication holes 37 and the second communication holes 34 are staggered. On the mounting base 8 The set has a floating sleeve 30 that can slide up and down freely. The floating sleeve 30 forms a key connection with the mounting base 8, so that the floating sleeve 30 can slide freely on the mounting base 8 and remain relatively stationary with the mounting base 8. In addition, the floating sleeve 30 A support arm is welded, and one end of the support arm away from the floating sleeve 30 is welded to the movable tube 12. An annular protrusion 28 is coaxially welded to the upper end surface of the floating sleeve 30. The annular protrusion 28 has a plurality of slots 27 arrayed along its axial direction. There are three mounting rods 26 welded vertically on the rotating base 10. The positions of the three mounting rods 26 correspond to the positions of the three activated carbon storage tanks 9. The lower ends of the mounting rods 26 are rotated and embedded with balls 31. The inner wall of one side of the slot 27 is in the shape of straight surface, the inner wall on the other side is inclined, and the highest point of the inclined surface corresponds to the upper end surface of the annular protruding portion 28, so that the ball 31 can roll from the upper end surface of the annular protruding portion 28 into the slot 27, and then from the inclined plane of the slot 27 Roll to the upper end surface of the annular protrusion 28, so that the ball 31 can alternately roll in the annular protrusion 28 and the slot 27. The mounting base 8 is surrounded by a driving spring 29, and the two ends of the driving spring 29 in the elastic direction are elastically pressed against each other. The floating sleeve 30, the outer shell 2, the upper end surface of the movable tube 12 are fixedly connected with a fixed plate 25, and the lower end of the activated carbon storage tank 9 is provided with a rubber ring 24. The lower end surface of the rubber ring 24 can be connected with the top surface of the fixed plate 25, and the air intake pipe is replaced with the fixed plate 25. 13 corresponding to an activated carbon storage tank 9, first start the motor 6, the output shaft of the motor 6 rotates (as seen from Figure 1, the direction of the output shaft of the motor 6 is from left to right) and drives the rotating shaft 7 to rotate, so that The ball 31 rolls from the slot 27 along the slope of the slot 27 to the upper end surface of the annular protrusion 28 , so that the floating sleeve 30 is pressed downward by the ball 31 and moves downward, so that the transition tube 14 drives the fixing plate 25 toward downward movement, the rubber ring 24 changes from a compressed state to an expanded state, and at the same time the floating plug 35 moves downward and approaches the fixed plug 36. When the ball 31 rolls to the upper end surface of the annular protrusion 28, the end surface of the fixed plug 36 and the end surface of the floating plug 35 Offset, since the first communication hole 37 and the second communication hole 34 are staggered, the end surface of the fixed plug 36 and the end surface of the floating plug 35 are in a sealed state, thereby allowing the activated carbon storage tank 9 to enter the air when it is away from the air inlet pipe 13. The upper nozzle of the air pipe 13 is in a closed state. In addition, at this time, the floating sleeve 30 compresses the driving spring 29, causing the driving spring 29 to accumulate elastic potential energy. When the output shaft of the motor 6 rotates 120 degrees (the motor 6 is controlled by an external control module When the angle of each rotation is 120 degrees), the other activated carbon storage tank 9 rotates to directly above the air inlet pipe 13. At this time, the ball 31 will roll from the upper end surface of the annular protrusion 28 into the slot 27, and at this time The elastic potential energy of the driving spring 29 is released, causing the floating sleeve 30 to move upward, and driving the movable tube 12 to move upward, so that the top surface of the fixed plate 25 is pressed against the rubber ring 24, and the rubber ring 24 is in a compressed state. In addition, this When the activated carbon storage tank 9, the movable pipe 12 and the air inlet pipe 13 are in an internal communication state, and there is no gap between the lower end face of the activated carbon storage tank 9 and the upper nozzle of the air inlet pipe 13, it is possible to prevent external dust from entering from the lower end face of the activated carbon storage tank 9 and into the air inlet pipe 13. The gap between the upper nozzle of the air pipe 13 enters the air inlet pipe 13. Through the above process, when the fan 15 continues to work, the activated carbon storage tank 9 can alternately rotate to directly above the air inlet pipe 13, and no foreign matter and dust enter the air inlet pipe 13. Within, through the alternating position change of the activated carbon storage tank 9, the activated carbon storage tank 9 can be replaced in time, giving the staff sufficient time to replace the replaced activated carbon storage tank 9;

In addition, a rotating shaft 32 is connected to the transition pipe 14 for horizontal rotation. Specifically, the rotating shaft 32 can rotate freely on the transition pipe 14. A rotating plate 33 is welded to the part of the rotating shaft 32 located inside the transition pipe 14. The outer wall of the transition pipe 14 is fixed. There are two ear blocks 17 connected. The two ear blocks 17 are connected horizontally with a fixed shaft 22. The fixed shaft 22 is equipped with a sliding sleeve 20 that can slide freely. The sliding sleeve 20 is equipped with a proximity switch 19. One of the ear blocks 17 has a There is an induction block 21 used in conjunction with the proximity switch 19. One end of the rotating shaft 32 passing through the transition tube 14 is sleeved with a gear 16. The sliding sleeve 20 is integrally formed and connected to a rack 23. The gear 16 meshes with the rack 23, and the fixed shaft 22 There is a return spring 18 wrapped around the sleeve. Both ends of the return spring 18 elastically resist the sliding sleeve 20 and the ear block 17 respectively. When the activated carbon adsorption in the activated carbon storage tank 9 is not saturated, the air flow through the activated carbon is larger, so the air flow The impact force on the rotating plate 33 is large, so that the rotating plate 33 will be in a vertical state. At this time, the proximity switch 19 is far away from the sensing block 21, and no sensing signal is generated by the proximity switch 19. On the contrary, when the activated carbon in the activated carbon storage tank 9 is adsorbed and saturated, The flow rate of the air flow through the activated carbon decreases, resulting in a smaller impact force of the air flow on the rotating plate 33. At this time, the elastic force of the return spring 18 on the sliding sleeve 20 is greater than the impact force of the air flow on the rotating plate 33, so the return spring 18 will drive the sliding The sleeve 20 moves, causing the rack 23 to mesh with the gear 16, and drives the rotating plate 33 to rotate. At the same time, the proximity switch 19 will move in the direction of the sensing block 21, causing the proximity switch 19 to generate an induction signal, and the external control module receives the proximity switch 19 After receiving the induction signal, the control module will control the motor 6 to start, and the output shaft of the motor 6 will rotate 120 degrees, thereby adjusting the position of the activated carbon storage tank 9, realizing automatic replacement after the activated carbon in the activated carbon storage tank 9 is saturated. Activated carbon storage tank 9 is more convenient to operate.

The working principle of the present invention: the fan 15 is started and is in a continuous working state. The fan 15 generates a negative pressure airflow in the air inlet pipe 13 and causes the dust-containing air outside the housing 2 to flow in through the filter hole on the filter cover 11 of the activated carbon storage tank 9 In the activated carbon storage tank 9, it enters the movable pipe 12, then enters the air inlet pipe 13, and then enters the fan 15 through the transition pipe 14, so that the airflow enters the air outlet of the fan 15, and then enters the purification chamber 3, and then passes through the air outlet. 1 flows out, during this process, the dust in the air will be adsorbed and filtered by the activated carbon in the activated carbon storage tank 9;

When the activated carbon adsorption in the activated carbon storage tank 9 is not saturated, the air flow through the activated carbon is larger, so the impact of the air flow on the rotating plate 33 is larger, so that the rotating plate 33 will be in a vertical state. At this time, the proximity switch 19 is far away from the induction Block 21, the proximity switch 19 does not generate an induction signal. On the contrary, when the activated carbon in the activated carbon storage tank 9 is saturated, the flow rate of the air flow through the activated carbon decreases, resulting in a smaller impact force of the air flow on the rotating plate 33. At this time, the return spring 18 slides The elastic resisting force of the sleeve 20 is greater than the impact force of the air flow on the rotating plate 33, so the return spring 18 will drive the sliding sleeve 20 to move, so that the rack 23 meshes with the gear 16 and drives the rotating plate 33 to rotate. At the same time, the proximity switch 19 will Move in the direction of the induction block 21 so that the proximity switch 19 generates an induction signal. After the external control module receives the induction signal from the proximity switch 19, the control module will control the motor 6 to start;

The output shaft of the motor 6 rotates (see Figure 1, the direction of the output shaft of the motor 6 is from left to right) and drives the rotating shaft 7 to rotate, so that the ball 31 rolls from the slot 27 along the slope of the slot 27 to The upper end surface of the annular protrusion 28 causes the floating sleeve 30 to move downward due to the downward extrusion force of the ball 31, so that the transition tube 14 drives the fixed plate 25 to move downward, and the rubber ring 24 changes from a compressed state to an expanded state while floating at the same time. The plug 35 moves downward and approaches the fixed plug 36. When the ball 31 rolls to the upper end surface of the annular protrusion 28, the end surface of the fixed plug 36 offsets the end surface of the floating plug 35. Since the first communication hole 37 and the second communication hole 34 are staggered, , so that there is a sealing state between the end face of the fixed plug 36 and the end face of the floating plug 35, so that when the activated carbon storage tank 9 is far away from the air inlet pipe 13, the upper side nozzle of the air inlet pipe 13 is in a closed state, and at this time, the floating The sleeve 30 compresses the driving spring 29, causing the driving spring 29 to accumulate elastic potential energy. When the output shaft of the motor 6 rotates 120 degrees (the angle of each rotation of the motor 6 is controlled by an external control module to be 120 degrees), another activated carbon storage The tank 9 rotates to just above the air inlet pipe 13. At this time, the ball 31 will roll from the upper end surface of the annular protrusion 28 into the slot 27, and at this time, the elastic potential energy of the driving spring 29 is released, causing the floating sleeve 30 to move upward. And drive the movable tube 12 to move upward, so that the top surface of the fixed plate 25 is pressed against the rubber ring 24, and the rubber ring 24 is in a compressed state. In addition, at this time, the activated carbon storage tank 9, the movable tube 12 and the air inlet pipe 13 are in internal communication. state, and there is no gap between the lower end surface of the activated carbon storage tank 9 and the upper nozzle of the air inlet pipe 13, preventing external dust from entering the air inlet pipe 13 from the gap between the lower end face of the activated carbon storage tank 9 and the upper nozzle of the air inlet pipe 13.

The last few points that should be explained are: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, and can be mechanical connections. Or electrical connection, or internal connection between two components, or direct connection. "Up", "Down", "Left", "Right", etc. are only used to express relative positional relationships. When the absolute position of the object being described is change, the relative positional relationship may change;

Secondly: the drawings of the disclosed embodiments of the present invention only involve structures related to the disclosed embodiments. Other structures can refer to common designs. The same embodiment and different embodiments of the present invention can be combined with each other without conflict;

Finally: The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection of the present invention. within the range.

Claims (10)

1. The plastic particle dust removal system comprises a housing (2) provided with an air outlet (1), and is characterized by further comprising:

the device comprises a mounting seat (8) vertically penetrating through the top of a shell (2), wherein the mounting seat (8) is coaxially connected with a rotating shaft (7) in a rotating way, a rotating seat (10) is fixedly connected to the upper end of the rotating shaft (7), a plurality of active carbon storage tanks (9) are arranged on the rotating seat (10) along the axial array of the rotating seat, and the rotating shaft (7) is driven to rotate by a motor (6) arranged in the shell (2);

the air inlet pipe (13) vertically penetrates through the shell (2) and corresponds to the active carbon storage tank (9), the air inlet pipe (13) is provided with a sealing unit, the sealing unit is used for sealing an upper pipe orifice of the air inlet pipe (13) when the rotating seat (10) rotates, and a transition pipe (14) is connected at the lower end of the air inlet pipe (13) in a penetrating way;

the fan (15) is arranged in the shell (2), an air inlet of the fan (15) is communicated with the transition pipe (14), and an air outlet of the fan (15) is communicated with the air outlet (1).

2. The plastic particle dust removal system according to claim 1, wherein a partition plate (4) is arranged in the housing (2), the inside of the housing (2) is sequentially partitioned into a mounting cavity (5) and a purifying cavity (3) from top to bottom by the partition plate (4), the purifying cavity (3) is communicated with the air outlet (1), and an air outlet of the fan (15) penetrates into the purifying cavity (3).

3. The plastic particle dust removal system according to claim 2, wherein the transition pipe (14) is horizontally rotatably connected with a rotating shaft (32), the rotating shaft (32) is located at a position in the transition pipe (14) and is fixedly connected with a rotating plate (33), two lugs (17) are fixedly connected to the outer wall of the transition pipe (14), a fixed shaft (22) is horizontally connected to the two lugs (17) together, a sliding sleeve (20) capable of freely sliding is sleeved on the fixed shaft (22), a proximity switch (19) is installed on the sliding sleeve (20), an induction block (21) matched with the proximity switch (19) is arranged on one lug (17), and the rotating shaft (32) and the sliding sleeve (20) are connected through a transmission unit, so that the sliding sleeve (20) is synchronously driven to move when the rotating shaft (32) rotates.

4. A plastic particle dust removal system as claimed in claim 3, characterised in that the transmission unit comprises a gear wheel (16) which is sleeved at one end of the rotation shaft (32), the sliding sleeve (20) being integrally formed with a rack (23), the gear wheel (16) being in engagement with the rack (23).

5. A plastic particle dust removing system according to claim 4, characterized in that the fixed shaft (22) is sleeved with a return spring (18), and both ends of the return spring (18) in the elastic direction are respectively elastically abutted against the sliding sleeve (20) and the ear piece (17).

6. The plastic particle dust removal system of claim 5, wherein the active carbon storage tank (9) is open at the upper and lower sides and is detachably connected with a filter cover (11).

7. A plastic particle dust removal system as claimed in claim 6, wherein the sealing unit comprises:

a movable pipe (12) sleeved at the upper end of the air inlet pipe (13), wherein the movable pipe (12) can freely slide on the air inlet pipe (13);

a fixed plug (36) coaxially and fixedly connected to the upper pipe opening of the air inlet pipe (13), wherein the fixed plug (36) is coaxially provided with a first communication hole (37) in the form of a through hole;

a floating plug (35) coaxially fixedly connected in the movable pipe (12) and positioned above the fixed plug (36), wherein a plurality of second communication holes (34) are formed in the end face of the floating plug (35), and the first communication holes (37) and the second communication holes (34) are staggered;

and the lifting mechanism is used for driving the floating plug (35) to abut against the end surface of the fixed plug (36) after the rotating seat (10) rotates for a fixed angle.

8. The plastic particle dust removal system of claim 7, wherein the lifting mechanism comprises:

a floating sleeve (30) sleeved on the mounting seat (8) and capable of sliding freely up and down, wherein the floating sleeve (30) is connected with the mounting seat (8) by a key, and the floating sleeve (30) is fixedly connected with the movable pipe (12);

the annular protruding part (28) is coaxially and fixedly connected to the upper end surface of the floating sleeve (30), and a plurality of clamping grooves (27) are formed in the annular protruding part (28) along the axial array of the annular protruding part;

the plurality of mounting rods (26) are vertically fixedly connected to the rotating seat (10), balls (31) are rotationally embedded at the lower ends of the mounting rods (26), and the balls (31) alternately roll in the clamping grooves (27) on the upper end surfaces of the annular protruding parts (28);

and the driving spring (29) is sleeved on the mounting seat (8), and two ends of the driving spring (29) in the elastic direction elastically abut against the floating sleeve (30) and the shell (2) respectively.

9. The plastic particle dust removal system according to claim 8, wherein a fixed plate (25) is fixedly connected to the upper end surface of the movable tube (12), a rubber ring (24) is arranged at the lower end of the active carbon storage tank (9), and the lower end surface of the rubber ring (24) can be in abutting connection with the top surface of the fixed plate (25).

10. A plastic particle dust removal process, characterized in that it uses the plastic particle dust removal system according to any one of claims 1 to 9, and that it comprises:

the fan (15) is started and is in a continuous working state, negative pressure airflow is generated in the air inlet pipe (13) by the fan (15), dust-containing air outside the shell (2) flows into the active carbon storage tank (9) through a filter hole on the filter cover (11) of the active carbon storage tank (9), then sequentially enters the movable pipe (12) and the air inlet pipe (13), then enters the fan (15) through the transition pipe (14), further air flows into an air outlet of the fan (15), then enters the purifying cavity (3), then flows out to the external environment through the air outlet (1), and in the process, dust in the air is adsorbed and filtered by active carbon in the active carbon storage tank (9);

when activated carbon adsorption in the activated carbon storage tank (9) is not saturated, the air flow of the air flow passing through the activated carbon is larger, so that the impact force of the air flow on the rotating plate (33) is larger, the obtained rotating plate (33) is in a vertical state, at the moment, the proximity switch (19) is far away from the sensing block (21), no sensing signal is generated by the proximity switch (19), otherwise, after the activated carbon adsorption in the activated carbon storage tank (9) is saturated, the flow of the air flow passing through the activated carbon is reduced, the impact force of the air flow on the rotating plate (33) is smaller, at the moment, the elastic propping force of the reset spring (18) on the sliding sleeve (20) is larger than the impact force of the air flow on the rotating plate (33), so that the reset spring (18) drives the sliding sleeve (20) to move, the rack (23) is meshed with the gear (16), the rotating plate (33) is driven to rotate, at the same time, the impact force of the air flow on the activated carbon storage tank (19) is smaller than the active carbon adsorption of the activated carbon, the activated carbon adsorption is saturated, the air flow of the activated carbon is reduced, the air flow is caused to pass through the activated carbon, the activated carbon is smaller than the impact force of the air flow on the rotating plate (33), and the rotating plate (33) is driven by the air flow is larger than the impact force of the air flow, so that is driven to the rotating plate (33), and the active carbon is driven to be in a state, and the active carbon is driven to rotate switch (19;

the output shaft of the motor (6) rotates and drives the rotating shaft (7) to rotate, so that the balls (31) roll from the inside of the clamping groove (27) to the upper end face of the annular protruding part (28) along the inclined surface of the clamping groove (27), the floating sleeve (30) is enabled to move downwards by the downward extrusion force of the balls (31), the transition pipe (14) drives the fixed plate (25) to move downwards, the rubber ring (24) is converted into an expansion state from a compression state, meanwhile, the floating plug (35) moves downwards and approaches the fixed plug (36), when the balls (31) roll to the upper end face of the annular protruding part (28), the end face of the fixed plug (36) abuts against the end face of the floating plug (35), so that the upper side pipe mouth of the air inlet pipe (13) is in a closed state when the active carbon storage tank (9) is far away from the air inlet pipe (13), in addition, the floating sleeve (30) drives the spring (29) to move downwards, the potential energy is enabled to rotate from the annular protruding part (28) to rotate, the other end face of the air inlet pipe (27) is enabled to rotate, and when the balls (31) roll to rotate from the upper end face of the annular protruding part (28), the elastic potential energy of the driving spring (29) is released, so that the floating sleeve (30) moves upwards and drives the movable pipe (12) to move upwards, the top surface of the fixing plate (25) is abutted against the rubber ring (24), and the rubber ring (24) is in a compressed state.