Negative-pressure gas collecting hood of garbage transfer station, low-energy-consumption plasma purification device and purification method of low-energy-consumption plasma purification device

Abstract

The invention belongs to the technical field of garbage treatment facilities, particularly relates to a negative-pressure gas collecting hood of a garbage transfer station, a low-energy-consumption plasma purification device and a purification method of the low-energy-consumption plasma purification device, and provides a solution for collecting and purifying odor of the garbage transfer station. When a cover body ascends and descends, a guide plate is linked, and garbage dumping guide and pool body sealing are achieved; the threaded rod drives the shifting push plate to move and spread materials and synchronously drives the shifting plate to reciprocate, so that the garbage surface area is increased, and the odor release rate is increased; a sensor is arranged in the shunting cylinder, the power of the fan and the purification device is adjusted according to the odor concentration, and energy consumption is reduced; the air injection disc injects purified fresh air into the garbage transfer pool, the environment is improved, and air pressure balance is maintained. The odor collection efficiency is effectively improved, the energy consumption is reduced, and the working environment is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of garbage treatment facilities, and in particular to a negative pressure gas collecting hood of a garbage transfer station, a low-energy consumption plasma purification device and a purification method thereof. Background Art

[0002] In the actual operation of garbage transfer stations, the effective collection and purification of garbage odor is a key link. In the process of garbage dumping, existing garbage transfer stations often have problems such as garbage overflow and odor leakage, which pollutes the surrounding environment. At the same time, garbage piled up in the pool easily forms a "mountain" shape, resulting in insufficient odor release and affecting the gas collection efficiency. In addition, traditional purification devices cannot flexibly adjust the operating power when the odor concentration changes, resulting in energy waste. Moreover, the existing technology lacks an effective means of discharging odor from the garbage, which further limits the odor treatment effect. Therefore, how to improve the odor collection efficiency of garbage transfer stations, reduce energy consumption, and improve the working environment has become a problem that needs to be solved urgently. Summary of the Invention

[0003] The purpose of the present invention is to solve the shortcomings of existing garbage overflow, odor leakage, insufficient odor release affecting gas collection efficiency, inability to flexibly adjust operating power and energy waste, and to propose a negative pressure gas collection hood and low-energy plasma purification device and purification method for a garbage transfer station.

[0004] In order to achieve the above object, the present invention adopts the following technical solutions:

[0005] A negative pressure gas collecting hood for a garbage transfer station, comprising a hood body and a garbage transfer pool, wherein an L-shaped frame is provided on one side of the garbage transfer pool, and a lifting structure for driving the hood body to rise and fall is provided on the top of the frame;

[0006] Two sliding plates are fixed on both sides of the cover, and the sliding plates are slidably connected to the side walls of the garbage transfer tank;

[0007] Also included is a rack fixed to a side portion of a sliding plate;

[0008] The side wall of the garbage transfer tank is provided with a feed port, and a guide structure is provided inside the side wall of the garbage transfer tank, including a rotating shaft rotatably connected to the feed port and a first gear rotatably provided outside the garbage transfer tank;

[0009] The garbage transfer tank is provided with a material spreading structure, including a material pushing plate and a material pushing plate slidably sleeved on the outer wall thereof;

[0010] When the cover body is lifted or lowered, the rack is meshed with the first gear to control the guide structure to open and close the feed port.

[0011] In one possible design, the lifting structure includes a reel that is rotatably connected to the top of an L-shaped frame via a base, with multiple pull ropes wound around its outer wall. The bottom ends of the pull ropes pass through the L-shaped frame and are fixed to the top of the cover. An L-shaped mounting plate is fixed to one side of the L-shaped frame, on which a first induced draft fan is provided, whose air inlet is connected to the cover via a hose. A flow equalizer is fixed inside the cover.

[0012] The reel-up roller reels in the pull rope to drive the cover to rise and fall, and the first induced draft fan extracts the odor through the cover.

[0013] In one possible design, the guide structure further includes a guide plate and two shielding plates fixed to the outer wall of the rotating shaft; one end of the rotating shaft extends to the outside of the garbage transfer tank, and the first gear is connected to the rotating shaft through a synchronous wheel and a synchronous belt transmission;

[0014] When the cover body rises, the rack drives the first gear to drive the guide plate to rotate and open the feed port.

[0015] In one possible design, the material spreading structure further includes a guide rod fixed in the garbage transfer tank, and the material pushing plate is slidably connected to the guide rod; a threaded rod is rotatably connected in the garbage transfer tank, and the material pushing plate is engaged with the threaded rod through an internal thread; one side of the material pushing plate is rotatably connected to a third gear and a second gear engaged therewith, and the third gear is transmission-connected to the threaded rod through a keyway structure; the drive motor is connected to the threaded rod through a coupling;

[0016] Among them, the threaded rod drives the material pushing plate to move and flatten the garbage.

[0017] In a possible design, an annular rubber sealing ring is fixed to the inner wall of the cover, and the outer wall thereof fits against the inner wall of the garbage transfer tank.

[0018] A low-energy plasma purification device comprises the aforementioned negative pressure air collection hood for a garbage transfer station, and further comprises: a plasma purification device body; exhaust racks are fixed to the inner walls of both sides of the garbage transfer pool, and a plurality of air inlet ducts are provided on the inner sides of the exhaust racks; a second induced draft fan is provided at the bottom of the garbage transfer pool, the air inlet of the second induced draft fan is connected to a first induced draft duct, and the first induced draft duct branches are connected to the two exhaust racks; the air outlet of the second induced draft fan is connected to a diverter tube via an inclined connecting pipe; the air outlet of the first induced draft fan is connected to the second induced draft duct, the bottom end of which is connected to the top of the diverter tube; the diverter tube is connected to the plasma purification device body via a vent pipe;

[0019] Among them, the first induced draft fan and the second induced draft fan respectively extract the odor from the upper and side of the garbage pool, and the odor enters the plasma purification device body through the diversion tube for purification.

[0020] In one possible design, the bottom of the diversion cylinder is connected to the drain pipe and the solenoid valve, and a sensor is fixed on its inner wall; the sensor detects the odor concentration and controls the power of the first induced draft fan, the second induced draft fan and the discharge power of the plasma purification device body in a linked manner.

[0021] In a possible design, an air injection disk is fixed to the inner wall of the bottom of the garbage transfer pool, and a plurality of air outlet ducts are provided on the outer wall of the air injection disk; the air injection disk is connected to the air outlet of the plasma purification device body through an air injection pipe;

[0022] Among them, the fresh air output by the plasma purification device is injected into the garbage pile through the air injection disk.

[0023] In one possible design, a plurality of support blocks are fixed to the inner wall of the bottom of the garbage transfer pool, with a placement plate placed on top of the support blocks; an electronic scale is fixed to the bottom, with the top of the electronic scale being in contact with the bottom of the placement plate;

[0024] Among them, the electronic scale detects the quality of garbage and combines the odor concentration data from the sensor to coordinate the control of equipment operating parameters.

[0025] In this application, a purification method of a low-energy plasma purification device comprises the following steps:

[0026] S1. Opening and closing operation of the garbage transfer pool: Start the motor to drive the reel-up roller to reel in the pull rope, which drives the cover to rise and open the garbage transfer pool; the cover drives the rotating shaft to rotate through the meshing of the rack and gear, so that the guide plate is unfolded to the garbage diversion position; when the reel-up roller reverses, the cover moves down to close the transfer pool, and the annular sealing ring enhances the airtightness, while the guide plate is reset to the storage state.

[0027] S2. Garbage leveling operation: The driving motor drives the threaded rod to rotate, so that the material-dispensing push plate moves axially along the guide rod to perform primary material spreading; the threaded rod drives the transmission gear set through the slide slider mechanism, and drives the material-dispensing plate to move back and forth on the push plate through the pulley and transmission belt, thereby realizing secondary fine leveling of the garbage mountain.

[0028] S3. Odor classification and collection: The top induced draft fan draws the upper odor in the pool through the hood and injects it into the diversion tube through the vertical induced draft pipe; the lateral induced draft fan at the bottom of the pool cooperates with the exhaust rack to draw the surrounding odor and simultaneously merge it into the diversion tube; the odor is introduced from the diversion tube into the plasma purification device for decomposition and treatment.

[0029] S4. Intelligent energy consumption control: The concentration sensor monitors the odor parameters in the diversion tube in real time, and dynamically adjusts the induced draft fan power and the discharge intensity of the purification device; the electronic scale collaboratively weighs the garbage mass, and combines the odor concentration data to achieve multi-mode energy-saving control.

[0030] S5. Condensate discharge management: The condensate in the diversion cylinder is diverted through an inclined pipeline and discharged into the sewage system through a solenoid valve-controlled drain pipe.

[0031] S6. Fresh air circulation balance: The blower inputs the filtered air into the purification device, and the treated fresh air is injected into the garbage pool through the air injection disk to maintain stable air pressure and improve the working environment.

[0032] Beneficial effect: In the present invention, a guide plate is fixedly sleeved on the outer wall of the rotating shaft, two shielding plates are fixed on one side of the guide plate, the first gear and the rotating shaft are connected by a synchronous wheel and a synchronous belt transmission, two sliding plates are fixed on both sides of the cover body, a rack is fixed on one side of one of the sliding plates, and the first gear is meshed with the rack; when the cover body rises to open the garbage transfer pool, the sliding plate drives the guide plate to rotate through the cooperation of the rack and the first gear, so that the guide plate guides the garbage into the garbage transfer pool; conversely, when the cover body moves down to close the garbage transfer pool, it can drive the guide plate to rotate in the opposite direction to complete the closure of the garbage transfer pool and prevent odor from escaping to the outside;

[0033] The transmission gear is connected with the transmission gear of the present invention, and the transmission gear is connected with the transmission gear of the present invention in a rotating manner, and the transmission gear is connected with the transmission gear of the present invention in a rotating manner, and the transmission gear is connected with the transmission gear of the present invention in a rotating manner, and the transmission gear is connected with the transmission gear of the present invention in a rotating manner, and the transmission gear is connected with the transmission gear of the present invention in a rotating manner, and the transmission gear is connected with the transmission gear of the present invention in a rotating manner,

[0034] In the present invention, an air injection disk is fixed to the inner wall of the bottom of the garbage transfer pool, and a plurality of air outlet ducts are provided on the outer wall of the air injection disk. An air injection pipe is fixedly connected to the bottom of the air injection disk, and one end of the air injection pipe is fixedly connected to one of the air outlets of the plasma purification device body. When the odor is extracted for purification, the filtered air is injected into the plasma purification device body through the corresponding air inlet by the blower for purification, and the purified fresh air is injected into the garbage transfer pool through the air injection pipe and the air injection disk, thereby improving the working environment and maintaining air pressure balance. At the same time, the fresh air is discharged from the inside of the garbage to the outside, thereby being able to discharge the odor contained in the garbage and improving the odor release efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 This is a schematic diagram of the three-dimensional structure of a negative pressure gas collection hood for a garbage transfer station provided by the present invention;

[0036] Figure 2 This is a schematic diagram of a three-dimensional cross-sectional explosion structure of an L-shaped frame and cover body of a negative pressure gas collection cover for a garbage transfer station provided by the present invention;

[0037] Figure 3This is a schematic diagram of the three-dimensional structure of a garbage transfer pool and a guide plate of a negative pressure gas collecting hood of a garbage transfer station provided by the present invention;

[0038] Figure 4 This is a schematic diagram of a three-dimensional explosion structure of a guide plate and a first gear of a negative pressure gas collecting hood of a garbage transfer station provided by the present invention;

[0039] Figure 5 This is a three-dimensional structural diagram of a material diverting push plate and a material diverting plate of a negative pressure gas collecting hood of a garbage transfer station provided by the present invention;

[0040] Figure 6 This is a schematic diagram of a three-dimensional exploded cross-section structure of a pulley, a second gear, and a material stripper plate of a negative pressure gas collecting hood of a garbage transfer station provided by the present invention;

[0041] Figure 7 A schematic diagram of the three-dimensional structure of a low-energy plasma purification device provided by the present invention;

[0042] Figure 8 A schematic diagram of a three-dimensional cross-sectional structure of a garbage transfer tank of a low-energy plasma purification device provided by the present invention;

[0043] Figure 9 A schematic three-dimensional cross-sectional view of an exhaust frame and an air injection disk of a low-energy plasma purification device provided by the present invention;

[0044] Figure 10 A schematic diagram of the three-dimensional structure of a plasma purification device body and a diversion cylinder of a low-energy plasma purification device provided by the present invention;

[0045] Figure 11 A schematic diagram of a three-dimensional cross-sectional structure of a diverter tube of a low-energy plasma purification device provided by the present invention;

[0046] Figure 12 This is a schematic cross-sectional structural diagram of a placement plate of a low-energy plasma purification device provided by the present invention.

[0047] Figure: 1, cover; 2, garbage transfer tank; 3, L-shaped frame; 4, reeling roller; 5, pull rope; 6, sliding plate; 7, rack; 8, flow equalizing plate; 9, annular rubber seal; 10, first induced draft fan; 11, L-shaped mounting plate; 12, rotating shaft; 13, guide plate; 14, shielding plate; 15, first gear; 16, guide rod; 17, threaded rod; 18, material push plate; 19, second gear; 20, third gear; 21, pulley; 22, Drive belt; 23. Material stripping plate; 24. Sliding groove; 25. Pin rod; 26. Drive motor; 27. Exhaust frame; 28. Air inlet duct; 29. First air duct; 30. Diverter tube; 31. Second air duct; 32. Support frame; 33. Plasma purification device body; 34. Air injection disk; 35. Air outlet duct; 36. Air injection duct; 37. Sensor; 38. Drain pipe; 39. Solenoid valve; 40. Support block; 41. Placement plate; 42. Electronic scale. DETAILED DESCRIPTION

[0048] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0049] Example 1: Reference Figure 1 and Figure 2 A negative pressure gas collection hood for a garbage transfer station, relating to the technical field of garbage disposal facilities, primarily comprises a hood body 1 and a garbage transfer tank 2 located below it. An L-shaped frame 3 is provided on one side of the garbage transfer tank 2, and a lifting structure is provided on top of the L-shaped frame 3 for driving the hood body 1 up and down to complete the sealing of the garbage transfer tank 2.

[0050] Reference Figure 1 and Figure 2The lifting structure includes a reeling roller 4 that rotates on the top of the L-shaped frame 3 through a base, and a plurality of pull ropes 5 are wound around the outer wall of the reeling roller 4. The bottom ends of the plurality of pull ropes 5 all pass through the L-shaped frame 3 and are fixedly connected to the top of the cover body 1. By driving the reeling roller 4 to reel in the pull ropes 5 through a motor, the cover body 1 can be driven to rise, thereby opening the garbage transfer pool 2; conversely, the reeling roller 4 releases the pull ropes 5, and the cover body 1 descends under the action of gravity, closing the garbage transfer pool 2. In order to increase the stability of the cover body 1 and the garbage transfer pool 2, two sliding plates 6 are fixed on both sides of the cover body 1, and the two sliding plates 6 are both slidably connected to one side of the garbage transfer pool 2. In addition, an annular rubber sealing ring 9 is fixed to the inner wall of the cover body 1, and the outer wall of the annular rubber sealing ring 9 is in contact with the inner wall of the garbage transfer pool 2, which is used to increase the sealing between the cover body 1 and the garbage transfer pool 2 when the cover body 1 closes the garbage transfer pool 2. The cross-section of the annular rubber sealing ring 9 can be designed as: hollow balloon type: it expands after inflation to enhance the sealing pressure; double lip structure: the inner and outer double sealing lips form a labyrinth barrier; the sealing surface can be additionally coated with polytetrafluoroethylene to reduce friction loss and extend service life.

[0051] Reference Figure 2 An L-shaped mounting plate 11 is fixed to one side of the L-shaped frame 3. A first induced draft fan 10 is fixed to the top of one side of the L-shaped mounting plate 11. The air inlet of the first induced draft fan 10 is fixedly connected to the housing 1 via a hose, and is used to extract odors from the garbage transfer tank 2 through the housing 1. A flow equalizer 8 is fixed inside the housing 1 to reduce vortexes and improve air collection efficiency.

[0052] Reference Figure 1 、 Figure 3 and Figure 4 A feed port is provided on one side of the garbage transfer tank 2 for dumping garbage into the tank 2. To prevent garbage from spilling outside the tank 2 when dumping, a guide structure is provided inside the tank 2. The guide structure includes a rotating shaft 12 that rotates within the feed port and a first gear 15 that rotates on one side of the tank 2. A guide plate 13 is fixed to the outer wall of the rotating shaft 12, which is used to guide the dumped garbage and close the feed port to ensure the sealing of the housing 1 and the garbage transfer tank 2. Two shielding plates 14 are fixed to one side of the guide plate 13. The two shielding plates 14 are used to prevent garbage from spilling from both sides when the guide plate 13 guides the garbage. One end of the rotating shaft 12 rotates and extends to one side of the garbage transfer tank 2. The first gear 15 is connected to one side of the rotating shaft 12 via a synchronous wheel and a synchronous belt. A rack 7 is fixed to one side of one of the sliding plates 6. The first gear 15 meshes with the rack 7, and the diameter of the first gear 15 is larger than that of the synchronous wheel.

[0053] Specifically, when the cover body 1 rises to open the garbage transfer pool 2, the sliding plate 6 drives the guide plate 13 to rotate through the cooperation of the rack 7 and the first gear 15, so that the guide plate 13 guides the garbage into the garbage transfer pool 2; conversely, when the cover body 1 moves down to close the garbage transfer pool 2, it can drive the guide plate 13 to rotate in the opposite direction to complete the closure of the garbage transfer pool 2 and prevent odor from escaping to the outside.

[0054] Reference Figure 3 、 Figure 5 and Figure 6 In order to flatten the garbage accumulated in the garbage transfer pool 2 and increase the release rate of odor in the garbage, a material spreading structure is provided in the garbage transfer pool 2. The material spreading structure includes a material diverting push plate 18 arranged in the garbage transfer pool 2 and a material diverting plate 23 sliding on the outer wall of the material diverting push plate 18. The working surface of the material diverting plate 23 is provided with a polytetrafluoroethylene coating (thickness 0.2-0.5mm). A guide rod 16 is fixed in the garbage transfer pool 2, and the material diverting push plate 18 is slidably connected to the guide rod 16. A threaded rod 17 is rotatably connected in the garbage transfer pool 2, and an internal thread is provided in the material diverting push plate 18. The material diverting push plate 18 is threadedly connected to the threaded rod 17 through the internal thread. A third gear 20 is rotatably connected to one side of the material diverting push plate 18, and the third gear 20 is slidably connected to the threaded rod 17 through a slide groove and a slider, and is used to synchronously drive the third gear 20 to rotate when the threaded rod 17 drives the material diverting push plate 18 to move. A second gear 19, which meshes with a third gear 20, is rotatably connected to one side of the material transfer plate 18. Two pulleys 21 are also provided on one side of the material transfer plate 18. One pulley 21 is fixedly connected to one end of the rotating shaft of the second gear 19, while the other pulley 21 is rotatably connected to one side of the material transfer plate 18. The two pulleys 21 are connected by a transmission belt 22. A pin 25 is fixed to one side of the transmission belt 22. A sliding groove 24 is provided on the inner wall of one side of the material transfer plate 23, and one end of the pin 25 extends into and slidably connects to the sliding groove 24. When the transmission belt 22 is in operation, the sliding groove 24 and the pin 25 cooperate to drive the material transfer plate 23 to move, thereby further spreading the garbage within the garbage transfer tank 2. A drive motor 26 is fixed to one side of the garbage transfer tank 2 through a frame. The output shaft of the drive motor 26 is fixedly connected to one end of the threaded rod 17 via a coupling.

[0055] Specifically, the drive motor 26 drives the threaded rod 17 to rotate, which in turn drives the material-dispensing push plate 18 to move axially along the guide rod 16, initially spreading the garbage. The threaded rod 17 is slidably connected to the third gear 20 via a slide groove and a slider. The threaded rod 17 drives the third gear 20 to rotate. The cooperation between the third gear 20 and the second gear 19 drives the pulley 21 and the transmission belt 22. The transmission belt 22 drives the material-dispensing push plate 23 to move back and forth on the material-dispensing push plate 18 through the sliding cooperation of the pin 25 and the slide groove 24. As the material-dispensing push plate 18 moves to flatten the "mountain" of garbage accumulated in the garbage transfer tank 2, the material-dispensing push plate 23 reciprocates to further flatten the garbage. Once the garbage is spread out, its surface area increases, increasing the rate of odor release and enabling the hood 1 and the exhaust rack 27 to more efficiently capture odors.

[0056] Reference Figure 7-10 , a low-energy plasma purification device, including the above-mentioned negative pressure air collection hood of the garbage transfer station, and also including a plasma purification device body 33. The inner walls on both sides of the garbage transfer pool 2 that are far away from each other are fixed with exhaust racks 27, and the sides where the two exhaust racks 27 are close to each other are provided with multiple air inlet ducts 28. The bottom of the garbage transfer pool 2 is fixed with a second induced draft fan (not shown in the figure) through a frame, and the air inlet of the second induced draft fan is fixed with a first induced draft duct 29, and the first induced draft duct 29 is divided into two and fixedly connected to the bottom ends of the two exhaust racks 27 respectively. The air outlet of the second induced draft fan is fixedly connected to a connecting pipe, and one end of the connecting pipe is fixed with a diverter tube 30 (the inner wall is plated with a 250μm aluminum-magnesium alloy layer). The connection position between the connecting pipe and the diverter tube 30 is placed at an angle, which is used to guide the condensed water in the odor into the diverter tube 30.

[0057] A second induced draft duct 31 is fixedly mounted on the air outlet of the first induced draft fan 10. The bottom end of the second induced draft duct 31 is fixedly connected to the top of the diverter tube 30. One side of the diverter tube 30 is connected to one of the air inlets of the plasma purification device body 33 via a vent pipe. A support frame 32 is fixed to the outer wall of the diverter tube 30 to support it.

[0058] Specifically, the first induced draft fan 10, through the housing 1, draws the odor from the garbage transfer tank 2 located above the waste transfer tank into the diversion tube 30 via the second induced draft duct 31. A second induced draft fan, located at the bottom of the waste transfer tank 2, cooperates with the first induced draft duct 29 and the exhaust rack 27 to draw the odor from the side of the waste transfer tank 2 into the diversion tube 30. The odor in the diversion tube 30 then enters the plasma purification device body 33, which purifies the odor before discharging it to the outside.

[0059] Reference Figure 11A drain pipe 38 is fixedly connected to the bottom of the diverter tube 30 for draining condensed water from the odor within the diverter tube 30. A solenoid valve 39 is installed on the drain pipe 38 to control its opening and closing. A sensor 37 is fixed to the inner wall of one side of the diverter tube 30 for detecting odor concentration. Sensor 37 is electrically connected to the plasma purification device body 33, the first induced draft fan 10, and the second induced draft fan. It controls the operating power of the first and second induced draft fans 10 and 33, as well as the discharge power of the plasma purification device body 33, based on the odor concentration, to avoid no-load losses and reduce energy consumption.

[0060] Reference Figure 8 and Figure 9 An air injection tray 34 is fixed to the inner bottom wall of the waste transfer tank 2, and multiple air outlet ducts 35 are located on the outer wall of the tray. An air injection pipe 36 is fixedly connected to the bottom of the tray 34, and one end of the pipe is fixedly connected to one of the air outlets of the plasma purification device body 33. This pipe is used to discharge fresh air purified by the plasma purification device body 33 into the waste transfer tank 2, improving the working environment and maintaining air pressure balance.

[0061] Specifically, to extract and purify odors, a blower (not shown) injects filtered air through the corresponding air inlet into the plasma purification device body 33 for purification. Purified fresh air is then injected into the garbage transfer tank 2 via the air injection pipe 36 and air injection tray 34, improving the working environment and maintaining air pressure balance. Simultaneously, the fresh air is discharged from the interior of the garbage to the outside, thereby discharging odors trapped within the garbage and improving odor release efficiency.

[0062] Sensor 37 is a H2S / NH3 sensor used to detect odor concentration.

[0063] The plasma purification device body 33 is a plasma purification device of the BT-FX series equipment.

[0064] The first induced draft fan 10 and the second induced draft fan are both EC centrifugal fans.

[0065] Example 2: Reference Figure 12 , based on the improvement of Example 1: multiple support blocks 40 are fixed to the bottom inner wall of the garbage transfer tank 2, and a placement plate 41 is placed on top of the multiple support blocks 40. An electronic scale 42 is fixed to the bottom inner wall of the garbage transfer tank 2, and the top of the electronic scale 42 is in contact with the bottom of the placement plate 41, which is used to measure the mass of the garbage accumulated on the top of the placement plate 41.

[0066] Specifically, when dumping garbage into the garbage transfer tank 2, the electronic scale 42 and placement plate 41 cooperate to detect the garbage's quality. This, combined with the garbage's quality and odor concentration, allows for coordinated multi-parameter control, facilitating subsequent adjustment of the power of the first and second induced draft fans 10 and 33, as well as the discharge power of the plasma purification device body 33, thereby reducing energy consumption.

[0067] A purification method for a low-energy plasma purification device comprises the following steps:

[0068] S1. When in use, the motor drives the reeling roller 4 to reel in the pull rope 5, driving the cover body 1 to rise and open the garbage transfer pool 2. The cover body 1 drives the rotating shaft 12 to rotate through the cooperation of the rack 7 and the first gear 15. The rotating shaft 12 drives the guide plate 13 to rotate, so as to guide the garbage when it is dumped into the garbage transfer pool 2 in the later stage to prevent the garbage from falling outside the garbage transfer pool 2. At the same time, the shielding plate 14 can block the garbage to prevent the garbage from leaking from both sides;

[0069] S2, the reeling roller 4 rotates in the opposite direction, the cover body 1 moves down to the top of the garbage transfer tank 2 to seal the garbage transfer tank 2, and at the same time the guide plate 13 rotates in the opposite direction to reset. Under the cooperation of the cover body 1, the garbage transfer tank 2 and the guide plate 13, the garbage transfer tank 2 is sealed. The design of the annular rubber sealing ring 9 can increase the sealing performance of the garbage transfer tank 2 and prevent the garbage odor from escaping to the outside.

[0070] S3, the threaded rod 17 is driven to rotate by the driving motor 26, and the threaded rod 17 drives the material-diverting push plate 18 to move along the axial direction of the guide rod 16, and the garbage is initially spread. The threaded rod 17 is slidably connected to the third gear 20 through the slide groove and the slider, and the threaded rod 17 drives the third gear 20 to rotate. The cooperation between the third gear 20 and the second gear 19 drives the pulley 21 and the transmission belt 22 to run. The transmission belt 22 drives the material-diverting push plate 23 to move back and forth on the material-diverting push plate 18 through the sliding cooperation of the pin rod 25 and the sliding groove 24. When the material-diverting push plate 18 moves to flatten the "mountain"-shaped garbage accumulated in the garbage transfer pool 2, the material-diverting push plate 23 reciprocates to further flatten the garbage. After the garbage is spread out, the surface area increases, which increases the odor release rate, so that the cover body 1 and the exhaust rack 27 can capture the odor more efficiently;

[0071] S4. When garbage odor needs to be purified, the first induced draft fan 10, through the cover body 1, draws the garbage odor from the upper portion of the garbage transfer tank 2 through the second induced draft duct 31 and injects it into the diversion tube 30. The second induced draft fan, located at the bottom of the garbage transfer tank 2, cooperates with the exhaust rack 27 to draw the odor from the side of the garbage transfer tank 2 into the diversion tube 30 through the first induced draft duct 29. The odor in the diversion tube 30 then enters the plasma purification device body 33, which purifies the odor. The purified gas is then discharged to the outside.

[0072] S5. After the captured odor enters the diversion barrel 30, the sensor 37 detects the odor concentration and adjusts the power of the first and second induced draft fans 10 and the discharge power of the plasma purification device body 33 according to the odor concentration to avoid no-load losses. In addition, after the odor enters the diversion barrel 30, the water vapor in the odor condenses into water droplets and accumulates in the diversion barrel 30. Because the second induced draft pipe 31 is arranged vertically and the connecting pipe on the air outlet of the second induced draft fan is connected to the diversion barrel 30 at an inclined position, condensed water can enter the diversion barrel 30 and be discharged into the sewage pipe through the cooperation of the drain pipe 38 and the solenoid valve 39.

[0073] S6. When dumping garbage into the garbage transfer tank 2, the electronic scale 42 and the placement plate 41 cooperate to detect the quality of the garbage. Then, based on the garbage quality and odor concentration, multi-parameter coordinated control is performed to facilitate the subsequent adjustment of the power of the first induced draft fan 10, the second induced draft fan, and the discharge power of the plasma purification device body 33, thereby achieving the purpose of reducing energy consumption.

[0074] S7. When the odor is extracted for purification, the filtered air is injected into the plasma purification device body 33 through the corresponding air inlet by the blower for purification, and the purified fresh air is injected into the garbage transfer pool 2 through the air injection pipe 36 and the air injection disk 34 to improve the working environment and maintain air pressure balance.

[0075] However, as is well known to those skilled in the art, the working principles and wiring methods of the electronic scale 42, the solenoid valve 39, the plasma purification device body 33, the first induced draft fan 10 and the drive motor 26 are commonplace, and are all conventional means or common knowledge, and will not be elaborated here. Those skilled in the art can make any selections according to their needs or convenience.

[0076] The drawings in this application are for illustrative purposes only. The sizes and shapes of the components shown are not intended to be limiting, but are merely for illustrative purposes. In actual implementation, the components may be appropriately configured and adjusted based on specific needs and actual conditions.

[0077] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A negative pressure gas collecting hood for a garbage transfer station, comprising a hood body (1) and a garbage transfer pool (2), characterized in that: An L-shaped frame (3) is provided on one side of the garbage transfer pool (2), and a lifting structure for driving the cover (1) to move up and down is provided on the top of the frame; Two sliding plates (6) are fixed on both sides of the cover body (1), and the sliding plates (6) are slidably connected to the side walls of the garbage transfer tank (2); It also includes a rack (7) fixed to a side of a sliding plate (6); The side wall of the garbage transfer tank (2) is provided with a feed port, and a guide structure is provided inside the side wall of the garbage transfer tank (2), including a rotating shaft (12) rotatably connected to the feed port and a first gear (15) rotatably provided on the outside of the garbage transfer tank (2); The garbage transfer pool (2) is provided with a material spreading structure, comprising a material pushing plate (18) and a material pushing plate (23) slidably sleeved on the outer wall thereof; When the cover body (1) is raised or lowered, the rack (7) and the first gear (15) are meshed and linked to control the guide structure to open and close the feed port.

2. The negative pressure gas collecting hood for a garbage transfer station according to claim 1, characterized in that: The lifting structure comprises a reel (4) rotatably connected to the top of the L-shaped frame (3) via a base, a plurality of pull ropes (5) being wound around the outer wall of the reel, the bottom ends of the pull ropes (5) passing through the L-shaped frame (3) and being fixed to the top of the cover (1); an L-shaped mounting plate (11) is fixed to one side of the L-shaped frame (3), a first induced draft fan (10) being provided on the L-shaped mounting plate, the air inlet of which is connected to the cover (1) via a hose; a flow equalizing plate (8) is fixed inside the cover (1); The reeling roller (4) reels the pull rope (5) to drive the cover body (1) to rise and fall, and the first induced draft fan (10) extracts odor through the cover body (1).

3. The negative pressure gas collecting hood for a garbage transfer station according to claim 2, characterized in that: The guide structure further comprises a guide plate (13) fixed to the outer wall of the rotating shaft (12) and two shielding plates (14); one end of the rotating shaft (12) extends to the outside of the garbage transfer tank (2); the first gear (15) is connected to the rotating shaft (12) via a synchronous wheel and a synchronous belt transmission; When the cover body (1) rises, the rack (7) drives the first gear (15) to drive the guide plate (13) to rotate and open the feed port.

4. The negative pressure gas collecting hood for a garbage transfer station according to claim 3, characterized in that: The material spreading structure further comprises a guide rod (16) fixed in the garbage transfer tank (2), and a material pushing plate (18) is slidably connected to the guide rod (16); a threaded rod (17) is rotatably connected in the garbage transfer tank (2), and the material pushing plate (18) is meshed with the threaded rod (17) through an internal thread; one side of the material pushing plate (18) is rotatably connected to a third gear (20) and a second gear (19) meshed therewith, and the third gear (20) is transmission-connected to the threaded rod (17) through a keyway structure; a driving motor (26) is connected to the threaded rod (17) through a coupling; Wherein, the threaded rod (17) drives the material pushing plate (18) to move and flatten the garbage.

5. The negative pressure gas collecting hood for a garbage transfer station according to claim 4, characterized in that: An annular rubber sealing ring (9) is fixed to the inner wall of the cover body (1), and the outer wall thereof is in contact with the inner wall of the garbage transfer tank (2).

6. A low-energy plasma purification device, comprising the aforementioned negative pressure gas collection hood for a garbage transfer station, characterized in that: Also includes: The plasma purification device body (33) is provided with an exhaust rack (27) fixed to the inner walls of both sides of the garbage transfer pool (2), and a plurality of air inlet ducts (28) are provided on the inner side thereof; a second induced draft fan is provided at the bottom of the garbage transfer pool (2), the air inlet of the second induced draft fan is connected to the first induced draft pipe (29), and the first induced draft pipe (29) branches and connects to the two exhaust racks (27); the air outlet of the second induced draft fan is connected to the diversion tube (30) through an inclined connecting pipe; the air outlet of the first induced draft fan (10) is connected to the second induced draft pipe (31), the bottom end of which is connected to the top of the diversion tube (30); the diversion tube (30) is connected to the plasma purification device body (33) through a ventilation pipe; The first induced draft fan (10) and the second induced draft fan extract odor from the upper and side of the garbage pool respectively, and the odor enters the plasma purification device body (33) through the diversion tube (30) for purification.

7. A low-energy plasma purification device according to claim 6, characterized in that: The bottom of the diversion tube (30) is connected to a drain pipe (38) and a solenoid valve (39), and a sensor (37) is fixed on its inner wall; the sensor (37) detects the odor concentration and controls the power of the first induced draft fan (10), the second induced draft fan and the discharge power of the plasma purification device body (33) in a linked manner.

8. The low-energy plasma purification device according to claim 7, characterized in that: An air injection disk (34) is fixed to the inner wall of the bottom of the garbage transfer pool (2), and a plurality of air outlet ducts (35) are provided on the outer wall thereof; the air injection disk (34) is connected to the air outlet of the plasma purification device body (33) via an air injection pipe (36); The fresh air outputted from the plasma purification device body (33) is injected into the garbage pile via the air injection disk (34).

9. The low-energy plasma purification device according to claim 8, characterized in that: A plurality of support blocks (40) are fixed to the inner wall of the bottom of the garbage transfer pool (2), with a placement plate (41) placed on top of the support blocks; an electronic scale (42) is fixed to the bottom, with the top of the electronic scale in contact with the bottom of the placement plate (41); Among them, the electronic scale (42) detects the quality of the garbage and coordinates the equipment operation parameters with the odor concentration data from the sensor (37).

10. A purification method for a low-energy plasma purification device, applied to the low-energy plasma purification device according to claim 9, characterized in that: The following steps are involved: S1. Opening and closing operation of the garbage transfer pool: starting the motor to drive the reeling roller (4) to reel in the pull rope (5), driving the cover body (1) to rise and open the garbage transfer pool (2); the cover body (1) engages with the first gear (15) through the rack (7) to drive the rotating shaft (12) to rotate, so that the guide plate (13) is unfolded to the garbage guiding position; when the reeling roller (4) is reversed, the cover body (1) moves down to close the garbage transfer pool (2), the annular rubber sealing ring (9) enhances the sealing performance, and at the same time the guide plate (13) is reset to the storage position; S2, garbage leveling operation: the driving motor (26) drives the threaded rod (17) to rotate, so that the material-dispensing push plate (18) moves axially along the guide rod (16) to perform primary material leveling; the threaded rod (17) drives the third gear (20) to rotate through the slide block mechanism, and the second gear (19) engages to drive the pulley (21) and the transmission belt (22) to run, and the pin rod (25) cooperates with the sliding groove (24) to drive the material-dispensing push plate (23) to move back and forth on the material-dispensing push plate (18), thereby achieving secondary leveling of the garbage mountain; S3, odor classification collection: the first induced draft fan (10) sucks the odor from the upper part of the pool through the cover (1), and injects it into the diversion tube (30) through the second induced draft pipe (31); the second induced draft fan at the bottom of the pool cooperates with the exhaust frame (27) to extract the odor from the side through the first induced draft pipe (29), and injects it into the diversion tube (30) at the same time; the odor in the diversion tube (30) is introduced into the plasma purification device body (33) for purification treatment; S4, intelligent power control: the sensor (37) detects the odor concentration in the diversion tube (30) in real time, and adjusts the power of the first induced draft fan (10), the second induced draft fan and the discharge power of the plasma purification device body (33) in a coordinated manner; the electronic scale (42) and the placement plate (41) cooperate to obtain garbage quality data, and coordinate with the odor concentration parameter to achieve multi-mode power adjustment; S5, condensate treatment: the condensate condensed in the diversion cylinder (30) is diverted through the inclined connecting pipe and discharged into the sewage pipe through the drain pipe (38) and the solenoid valve (39); S6. Fresh air circulation: The blower injects the filtered air into the plasma purification device body (33), and the purified fresh air is injected into the garbage transfer pool (2) through the air injection pipe (36) and the air injection disk (34) to maintain air pressure balance.

Images