Wastewater treatment system for tent hospital

Abstract

The invention discloses a wastewater treatment system for tent hospitals, which comprises the following steps: S1, dynamic feeding: adding wastewater to be treated through a feeding pipe of a cover plate, and dynamically balancing the adding amount of a flocculating agent through a feeding assembly; s2, precipitating and filter-pressing: filtering and pressurizing the wastewater by a filter-pressing assembly to remove large-particle solid impurities in the wastewater, and controlling a feeding assembly to deflect at the same time; s3, air flotation separation: an air flotation assembly injects bubbles into the filtered wastewater so as to remove suspended solids and small-particle impurities in the wastewater and synchronously kill microorganisms in the wastewater, meanwhile, the impurities float to the surface of the water body to form a scum layer, and the scum layer is synchronously discharged under the collection action of a filter pressing assembly; and S4, water suction: the suction mechanism circularly sucks the purified water, and the suction process does not interfere with the purification work of the equipment.

Description

Technical Field

[0001] The invention relates to the technical field of sewage treatment, in particular to a sewage treatment system for a tent hospital. Background Art

[0002] The wastewater treatment system of the tent hospital is mainly aimed at various types of wastewater generated in the temporary hospital environment, mainly domestic sewage. Such a system needs to be efficient, convenient, mobile and easy to operate to meet the emergency needs in the event of an outbreak or disaster.

[0003] After searching, the Chinese patent with publication number CN115140870B includes a filter barrel, a filter screen, a reaction barrel, a driving mechanism, a liquid delivery mechanism, and a medicine delivery mechanism; the driving mechanism includes a rotating ring, which is mounted on a power source, and the rotating ring is rectangular, and a rotating disk is rotatably mounted on the rotating ring, and the rotating disk is connected to the medicine delivery mechanism, and the rotating ring is connected to the liquid delivery mechanism; the liquid delivery mechanism includes a rotating wheel, and the rotating wheel and the rotating ring are slidably matched, and the rotating wheel is used to extract the wastewater in the fluid pipe; the medicine delivery mechanism includes an intermediate cylinder, and the intermediate cylinder is fixedly mounted on the filter barrel, and an extrusion head is slidably mounted on the intermediate cylinder, and the extrusion head is slidably matched with the extrusion assembly. It treats the wastewater generated when using the tent through the driving mechanism, the liquid delivery mechanism, and the medicine delivery mechanism, and has a simple structure and is easy to operate.

[0004] However, the above-mentioned patent adds wastewater by periodic suction, which will cause the wastewater in the reaction process to mix with the unreacted wastewater, thereby affecting the purification efficiency and purification effect of the equipment. At the same time, the wastewater after passing through the filter screen may still contain small particles of solid impurities. These impurities are always present in the wastewater, thereby affecting the purification quality of the equipment. On the other hand, the above-mentioned patent does not consider the regular cleaning of the filter screen. When used multiple times, the filter screen may be blocked by large particles of solid impurities contained in the wastewater, and the radial stirring of the reaction cylinder by the stirring impeller is difficult to fully drive the movement of the wastewater in the reaction cylinder, thereby It is difficult to achieve the expected accelerated purification effect. Summary of the invention

[0005] The purpose of the present invention is to provide a wastewater treatment system for a tent hospital, which has the advantages of multiple purifications and self-cleaning, and solves the problems raised in the background technology.

[0006] To achieve the above object, the present invention provides the following technical solution: a wastewater treatment system for a tent hospital, comprising the following steps:

[0007] S1. Dynamic feeding: The wastewater to be treated is added through the feed pipe of the cover plate, and the feed components work synchronously to dynamically balance the amount of flocculant added according to the amount of wastewater added in a single time;

[0008] S2, Sedimentation Filter Press: After the flocculant reacts, the motor controls the filter press assembly to start working. The filter press assembly filters and pressurizes the wastewater in the upper part of the treatment tank to remove large solid impurities inside, while controlling the deflection of the feed assembly;

[0009] S3, air flotation separation: While the filter press assembly is working, the air flotation assembly works synchronously, injecting bubbles into the filtered wastewater to remove suspended matter and small particle impurities in the wastewater and simultaneously kill microorganisms in the wastewater. At the same time, these impurities float to the surface of the water body to form a scum layer, which is discharged synchronously under the collection action of the filter press assembly;

[0010] S4. Water suction: The suction mechanism works synchronously with the air flotation component to circulate and suck the purified water, and the suction process does not interfere with the purification work of the equipment, thereby ensuring the continuous working state of the equipment.

[0011] Preferably, it comprises a treatment tank and a filter press assembly, a feed assembly and an air flotation assembly, an I-shaped groove is provided on the inner contour of the upper half of the treatment tank, a discharge port is provided on the outer contour of the top of the treatment tank and the discharge port is communicated with the inside of the treatment tank, a cover plate is fixedly connected to the top of the treatment tank, a feed pipe for adding wastewater is penetrated at the axis of the top of the cover plate and is provided, and a drug inlet for adding flocculant is penetrated at a position close to the feed pipe on the upper surface of the cover plate;

[0012] The filter press assembly includes a limiting mechanism that performs lifting and stopping rotational motion and a collecting mechanism that opens and closes regularly to guide wastewater. The collecting mechanism is fixedly connected to the limiting mechanism.

[0013] The air flotation assembly includes a transmission mechanism that moves synchronously with the limiting mechanism and ejects bubbles, and a suction mechanism for extracting purified water. The transmission mechanism is in transmission connection with the limiting mechanism, and the suction mechanism is in transmission connection with the transmission mechanism.

[0014] Preferably, the limiting mechanism includes an electric push rod fixedly connected to the axis center of the inner contour of the bottom end of the processing tank and driven by a motor, the top end of the electric push rod is penetrated by and transmission connected with a transmission roller, and a guide groove is opened on the outer contour of the transmission roller; a positioning pin is transmission connected in the guide groove of the transmission roller, and the positioning pin penetrates and is fixedly connected to the inner contour of the top end of the electric push rod, a plurality of annularly distributed sealing plates are fixedly connected to the outer contour of the transmission roller near the top end, a rotating plate is sleeved on the outer contour of the sealing plate, and the rotating plate and the transmission roller are transmission connected, a filter screen is penetrated and rotationally connected to the outer contour of the transmission roller near the sealing plate position, and the filter screen is fixedly connected to the inside of the rotating plate.

[0015] Preferably, the collecting mechanism includes a connecting groove which passes through the upper and lower surfaces of the rotating plate, limit blocks are arranged on both sides of the rotating plate and the limit blocks of the rotating plate are slidably connected to the I-shaped grooves, a plurality of annularly distributed collecting frames are fixedly connected to the bottom end of the rotating plate and the number of collecting frames corresponds to the number of connecting grooves, a pushing plate is fixedly connected to the top end of the rotating plate and the spiral direction of the pushing plate points to the location of the discharge port.

[0016] Preferably, the feeding assembly includes a lifting shaft that passes through and is limitedly slidably connected to the cover plate, a bevel gear 1 is fixedly connected to the outer contour of the middle section of the lifting shaft, a compression spring sleeved on the outer contour of the lifting shaft is fixedly connected to the top of the bevel gear 1, and the top of the compression spring is fixedly connected to the lower surface of the cover plate, the outer contour of the bevel gear 1 is meshed and transmission-connected with a bevel gear 2, and the bevel gear 2 is limitedly rotatably connected to the cover plate, the bottom end of the bevel gear 2 is transmission-connected to a positioning shaft arranged directly below the axis of the cover plate through a connecting rod, and the positioning shaft and the connecting rod are limitedly rotatably connected, a paddle wheel is fixedly connected to the outer contour of the middle section of the positioning shaft, and a wheel axle rod is fixedly connected to the outer contour of the top end of the positioning shaft.

[0017] Preferably, the feeding assembly also includes a fixed shaft that passes through and is connected to the cover plate for limited rotation, the bottom end of the fixed shaft is fixedly connected to a blocking plate, the upper surface of the blocking plate is fixedly connected to a torsion spring that is sleeved on the outer contour of the torsion spring and the other end of the torsion spring is fixedly connected to the lower surface of the cover plate, one end of the blocking plate is intermittently transmission-connected to the axle rod and the other end of the blocking plate is located directly below the drug inlet of the cover plate and fits together.

[0018] Preferably, the transmission mechanism includes a bevel gear sleeve fixedly connected to the outer contour of the middle section of the electric push rod, the outer contour of the bevel gear sleeve is meshed and transmission connected with a transmission plate, and the transmission plate is limited and rotatably connected to the inner contour of the middle section of the processing tank, the bottom end of the transmission plate is fixedly connected with a gear ring 1, the bottom end of the gear ring 1 is meshed and transmission connected with a transmission wheel, and the transmission wheel is also limited and rotatably connected to the inner contour of the processing tank, the bottom end of the transmission wheel is meshed and transmission connected with a gear ring 2, the inner contour of the gear ring 2 is fixedly connected with a bevel gear ring, and the bevel gear ring of the gear ring 2 is meshed and transmission connected with a semi-bevel gear, fixed frames are provided on both sides of the semi-bevel gear and the fixed frames are fixedly connected to the inner contour of the processing tank, the two fixed frames are penetrated by the same pin shaft and are limited and rotatably connected with the semi-bevel gear, a nozzle is fixedly connected to the outer contour of the semi-bevel gear pointing to the electric push rod side, and the nozzle is connected to an external air pump through the semi-bevel gear, the fixed frame and the processing tank.

[0019] Preferably, the suction mechanism includes a fixed frame fixedly connected to the inner contour of the processing tank, the center of the fixed frame is penetrated and connected to a rotating frame for limited rotation, the middle section of the inner contour of the rotating frame is fixedly connected to a partition and the partition divides the interior of the rotating frame evenly into two temporary storage grooves, the top of the rotating frame is penetrated and transmission connected to two transmission rods, the two transmission rods respectively correspond to the two temporary storage grooves in the rotating frame and the other of the transmission rods is penetrated and transmission connected to both sides of the axis of the transmission wheel, the bottom end of the fixed frame is penetrated and fixedly connected with a drain pipe and a suction pipe, the drain pipe and the suction pipe also respectively correspond to the two temporary storage grooves in the rotating frame.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] 1. The present invention sets a feeding component, which automatically starts and adds flocculants simultaneously when wastewater is added, and the amount of flocculants added is dynamically balanced with the amount of wastewater added in a single time, thereby reducing the manual operation process to improve the degree of automation of the device and avoiding the purification effect of the device being affected by excessive or insufficient addition of flocculants.

[0022] 2. The present invention provides a filter press assembly to filter and pressurize the wastewater after precipitation to remove large solid impurities condensed by the flocculant, and at the same time scrapes and removes the scum layer produced by the flotation assembly, and collects the impurities and discharges them from the tank.

[0023] 3. The present invention provides an air flotation component to perform air flotation purification on the filtered wastewater, further kills the microorganisms in the wastewater and separates pollutants such as grease, thereby fully improving the purification effect of the equipment, and at the same time rinses and cleans the surface of the filter press component, thereby effectively avoiding the decrease in the collection and filtration effect of the filter press component due to the accumulation of impurities. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a cross-sectional view of the main structure of the present invention;

[0025] Figure 2 This is a schematic diagram of the connection relationship of the filter press assembly of the present invention;

[0026] Figure 3 This is an exploded schematic diagram of the structure of the filter press assembly of the present invention;

[0027] Figure 4 This is a schematic diagram of the connection relationship of the feed assembly of the present invention;

[0028] Figure 5 This is an exploded schematic diagram of the feed assembly structure of the present invention;

[0029] Figure 6 This is a schematic diagram of the connection relationship of the air flotation components of the present invention;

[0030] Figure 7 This is a schematic diagram of the explosion of the air flotation assembly structure of the present invention;

[0031] Figure 8 It is a cross-sectional view of the suction mechanism structure of the present invention;

[0032] Fig. 9 It is the overall workflow diagram of the present invention.

[0033] In the figure: 1. treatment tank; 11. I-shaped groove; 12. cover plate; 13. discharge port; 2. electric push rod; 21. transmission roller; 22. positioning pin; 23. sealing plate; 24. rotating plate; 25. filter screen; 26. collecting frame; 27. pushing plate; 3. lifting shaft; 31. bevel gear 1; 32. compression spring; 33. bevel gear 2; 34. positioning shaft; 35. impeller; 36. wheel axle rod; 4. fixed shaft; 41. torsion spring; 42. blocking plate; 5. bevel gear sleeve; 51. transmission plate; 52. gear ring 1; 53. transmission wheel; 54. gear ring 2; 55. fixed frame; 56. semi-bevel gear; 57. nozzle; 6. fixed frame; 61. rotating frame; 62. partition; 63. transmission rod; 64. drainage pipe; 65. suction pipe. DETAILED DESCRIPTION

[0034] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0035] Embodiment 1:

[0036] See also Figures 1 to 9 The present invention provides a technical solution: a wastewater treatment system for a tent hospital, comprising the following steps:

[0037] S1. Dynamic feeding: The wastewater to be treated is added through the feed pipe of the cover plate 12, and the feed components work synchronously to dynamically balance the amount of flocculant added according to the amount of wastewater added in a single time;

[0038] S2, sedimentation filter press: after the flocculant reacts, the motor controls the filter press assembly to start working, and the filter press assembly filters and pressurizes the wastewater located in the upper half of the treatment tank 1 to remove large solid impurities inside, while controlling the deflection of the feed assembly;

[0039] S3, air flotation separation: While the filter press assembly is working, the air flotation assembly works synchronously, injecting bubbles into the filtered wastewater to remove suspended matter and small particle impurities in the wastewater and simultaneously kill microorganisms in the wastewater. At the same time, these impurities float to the surface of the water body to form a scum layer, which is discharged synchronously under the collection action of the filter press assembly;

[0040] S4. Water suction: The suction mechanism works synchronously with the air flotation component to circulate and suck the purified water, and the suction process does not interfere with the purification work of the equipment, thereby ensuring the continuous working state of the equipment.

[0041] It includes a treatment tank 1 and a filter press assembly, a feed assembly and an air flotation assembly. An I-shaped groove 11 is provided on the inner contour of the upper half of the treatment tank 1. A discharge port 13 is provided on the outer contour of the top of the treatment tank 1 and the discharge port 13 is communicated with the inside of the treatment tank 1. A cover plate 12 is fixedly connected to the top of the treatment tank 1. The axis of the top of the cover plate 12 is penetrated and provided with a feed pipe for adding wastewater. The upper surface of the cover plate 12 is penetrated near the feed pipe and provided with a drug inlet for adding flocculant.

[0042] The filter press assembly includes a limiting mechanism that performs lifting and stopping rotational motion and a collecting mechanism that opens and closes regularly to guide wastewater. The collecting mechanism is fixedly connected to the limiting mechanism.

[0043] The air flotation assembly includes a transmission mechanism that moves synchronously with the limiting mechanism and ejects bubbles, and a suction mechanism for extracting purified water. The transmission mechanism is in transmission connection with the limiting mechanism, and the suction mechanism is in transmission connection with the transmission mechanism.

[0044] In the present system, the feed pipe on the cover plate 12 completes the addition of the wastewater to be treated, and the drug inlet on the cover plate 12 simultaneously completes the addition of the flocculant. This process is controlled by the feed component to achieve a dynamic balance in the addition ratio between the wastewater and the flocculant, and the amount of flocculant added is synchronously balanced according to the amount of wastewater added, thereby ensuring the wastewater treatment efficiency and treatment quality of the equipment, avoiding incomplete purification of the wastewater due to too little flocculant or pollution of the purified water body due to too much flocculant; the I-groove 11 cooperates with the limiting mechanism to complete the filtration and pressurization of the wastewater, and the treatment tank 1 serves as the main tank structure of the system.

[0045] Furthermore, after the wastewater is added into the treatment tank 1, it is separated by the filter press assembly in the upper half of the treatment tank 1. After the flocculant reacts, the motor is turned on to control the limiting mechanism. The limiting mechanism and the collecting mechanism cooperate to complete the filtering of the wastewater, collect the large particles of solid impurities generated during the filtration and discharge them through the discharge port 13. Then, the limiting mechanism and the collecting mechanism start to pressurize the filtered wastewater to increase the air pressure inside the treatment tank 1.

[0046] The flotation component works synchronously to inject ozone gas into the filtered water body. As the air pressure inside the treatment tank 1 continues to increase, the solubility of the ozone gas in the water body increases synchronously, making the bubbles generated in the water body more uniform and smaller. Smaller bubbles have a larger specific surface area and can better contact and adhere to pollutants. At the same time, the lift of the bubbles is relatively weak, and they stay in the water for a longer time, so they can more fully contact and adhere to suspended matter, thereby improving the purification effect. In addition, the more uniform the bubbles are, the wider their distribution is, and they can completely cover the water area inside the treatment tank 1.

[0047] It should be noted that since ozone gas is injected, as a strong oxidant, ozone can effectively kill bacteria, viruses, algae and other microorganisms in the water. It can react with the cell membrane of microorganisms, causing the cell membrane to rupture or change the permeability of the cell membrane, and eventually leading to cell death; at the same time, it oxidizes the enzymes and other biomacromolecules inside the microorganisms, thereby destroying their life activities and achieving the effect of killing microorganisms. It can also destroy the outer shell of the virus to inhibit virus replication, thereby achieving effective separation of suspended matter and killing of microorganisms.

[0048] Furthermore, the suction mechanism works synchronously and circulates the purified water to ensure the continuous working state of the system.

[0049] Embodiment 2:

[0050] See also Figure 1-Figure 3 This embodiment further illustrates the following on the basis of the first embodiment:

[0051] The limiting mechanism includes an electric push rod 2 which is fixedly connected to the axis center of the inner contour of the bottom end of the processing tank 1 and driven by a motor, the top end of the electric push rod 2 is penetrated by and transmission-connected with a transmission roller 21, and a guide groove is opened on the outer contour of the transmission roller 21; a positioning pin 22 is transmission-connected in the guide groove of the transmission roller 21, and the positioning pin 22 penetrates and is fixedly connected to the inner contour of the top end of the electric push rod 2, a plurality of annularly distributed sealing plates 23 are fixedly connected to the outer contour of the transmission roller 21 near the top, a rotating plate 24 is sleeved on the outer contour of the sealing plate 23, and the rotating plate 24 is transmission-connected to the transmission roller 21, a filter screen 25 is penetrated and rotationally connected on the outer contour of the transmission roller 21 near the sealing plate 23, and the filter screen 25 is fixedly connected to the inside of the rotating plate 24.

[0052] The collecting mechanism includes a connecting groove that passes through the upper and lower surfaces of the rotating plate 24, and limit blocks are arranged on both sides of the rotating plate 24, and the limit blocks of the rotating plate 24 are slidably connected to the I-shaped groove 11. The bottom end of the rotating plate 24 is fixedly connected to a plurality of annularly distributed collecting frames 26, and the number of the collecting frames 26 corresponds to the number of the connecting grooves. The top end of the rotating plate 24 is fixedly connected to a pushing plate 27, and the spiral direction of the pushing plate 27 points to the position of the discharge port 13.

[0053] When the wastewater enters the treatment tank 1, it is blocked by the rotating plate 24 and stays in the upper half of the treatment tank 1. At this time, the flocculant begins to react with the wastewater, and large floccules gradually appear in the water and precipitate. After a period of stillness, the motor is turned on to drive the electric push rod 2 to work, and the electric push rod 2 begins to shrink and drives the transmission roller 21 to move synchronously. At this time, the limit block of the rotating plate 24 is located at the bottom end of the I-shaped groove 11, and the transmission roller 21 cannot descend under the restriction of the I-shaped groove 11. At this time, relative movement occurs between the electric push rod 2 and the transmission roller 21, and the continued contraction of the electric push rod 2 causes the transmission roller 21 to start rotating under the cooperation of the guide groove and the positioning pin 22.

[0054] Furthermore, the driving roller 21 drives the sealing plate 23 and the filter screen 25 to rotate synchronously, while the rotating plate 24 temporarily does not start to move due to the friction between its limit block and the I-shaped groove 11. After the sealing plate 23 rotates a certain angle, the sealing plate 23 abuts against the inside of the rotating plate 24 and releases the obstruction of the connecting groove of the rotating plate 24. Then, the sealing plate 23 drives the rotating plate 24 to rotate synchronously. At this time, the limit block of the rotating plate 24 slides synchronously in the I-shaped groove 11.

[0055] Since the sealing plate 23 releases the obstruction to the connecting groove of the rotating plate 24, the intercepted water continues to be injected into the lower half of the interior of the treatment tank 1 through the filter screen 25, the connecting groove of the rotating plate 24 and the collecting frame 26, while the large particles of flocs are retained by the filter screen 25 on the upper surface of the rotating plate 24. Then the motor drives the electric push rod 2 to extend, and the driving roller 21 and the rotating plate 24 rise synchronously.

[0056] When the rotating plate 24 rises to the point where it contacts the bottom end of the cover plate 12, the transmission roller 21 cannot continue to rise. At this time, the continued extension of the electric push rod 2 causes the transmission roller 21 and the sealing plate 23 to rotate again. At this time, the self-rotation of the sealing plate 23 re-realizes the covering of the connecting groove of the rotating plate 24 and drives the rotating plate 24 and the pushing plate 27 to rotate. Along with the rotation of the pushing plate 27, the large particle flocs at the top of the rotating plate 24 are gradually pushed to the discharge port 13 and finally discharged along the discharge port 13.

[0057] Then the motor controls the electric push rod 2 to retract again. At this time, the sealing plate 23 blocks the connecting groove of the rotating plate 24, causing the rotating plate 24 to be in a closed state. As the driving roller 21 gradually descends, the air pressure inside the processing tank 1 increases synchronously, thereby improving the working efficiency of the subsequent air flotation components.

[0058] It should be noted that since the sealing plate 23 is fixedly connected to the driving roller 21, and the filter screen 25 is fixedly connected to the rotating plate 24, that is, the sealing plate 23 and the filter screen 25 will have relative movement during the movement, at this time, the reciprocating friction of the sealing plate 23 on the filter screen 25 accompanied by the lifting and lowering of the driving roller 21 can effectively remove the flocculent impurities entangled on the surface of the filter screen 25, thereby effectively ensuring the filtering quality of the filter screen 25 for the water body.

[0059] Embodiment three:

[0060] See also Figure 4-Figure 5 This embodiment further illustrates the following on the basis of the second embodiment:

[0061] The feeding assembly includes a lifting shaft 3 that passes through and is limitedly slidably connected to the cover plate 12, a bevel gear 1 31 is fixedly connected to the outer contour of the middle section of the lifting shaft 3, a compression spring 32 sleeved on the outer contour of the lifting shaft 3 is fixedly connected to the top of the bevel gear 1 31, and the top of the compression spring 32 is fixedly connected to the lower surface of the cover plate 12, a bevel gear 2 33 is meshed and transmission-connected on the outer contour of the bevel gear 1 31, and the bevel gear 2 33 is limitedly rotatably connected to the cover plate 12, the bottom end of the bevel gear 2 33 is transmission-connected to a positioning shaft 34 arranged directly below the axis of the cover plate 12 through a connecting rod, and the positioning shaft 34 is limitedly rotatably connected to the connecting rod, a paddle wheel 35 is fixedly connected to the outer contour of the middle section of the positioning shaft 34, and a wheel axle rod 36 is fixedly connected to the outer contour of the top end of the positioning shaft 34.

[0062] The feeding assembly also includes a fixed shaft 4 that passes through and is connected to the cover plate 12 for limited rotation. The bottom end of the fixed shaft 4 is fixedly connected to a blocking plate 42. The upper surface of the blocking plate 42 is fixedly connected to a torsion spring 41 that is sleeved on the outer contour of the torsion spring 41, and the other end of the torsion spring 41 is fixedly connected to the lower surface of the cover plate 12. One end of the blocking plate 42 is intermittently transmission-connected to the axle rod 36, and the other end of the blocking plate 42 is located directly below the drug inlet of the cover plate 12 and fits with each other.

[0063] During the process of injecting wastewater into the treatment tank 1, the wastewater is connected to the feed pipe of the cover plate 12, and the flocculant is connected to the drug inlet of the cover plate 12, and then the wastewater is injected. When the wastewater passes through the paddle wheel 35, it drives the paddle wheel 35, the axle rod 36 and the positioning shaft 34 to rotate synchronously. The rotation of the axle rod 36 further continuously hits the blocking plate 42 and causes the blocking plate 42 to deflect along the fixed axis 4 and synchronously compress the torsion spring 41. At this time, the end of the blocking plate 42 away from the axle rod 36 releases the obstruction to the drug inlet of the cover plate 12, thereby synchronously realizing the addition of the flocculant.

[0064] It should be noted that, due to the setting of the torsion spring 41, when the axle rod 36 does not hit and squeeze the blocking plate 42, the rapid reset of the torsion spring 41 can drive the blocking plate 42 to re-block the drug inlet of the cover plate 12, that is, when the injection of wastewater is stopped, the addition of flocculant is stopped synchronously, thereby realizing the work of dynamically controlling the amount of flocculant added according to the injection amount of wastewater.

[0065] On the other hand, along with the operation of the filter press assembly, when the transmission roller 21 drives the rotating plate 24 and the pushing plate 27 to rise, the pushing plate 27 gradually contacts the bottom end of the lifting shaft 3 and squeezes it. At this time, the lifting shaft 3 drives the bevel gear 1 31 to extend upward synchronously and compress the compression spring 32. The rise of the bevel gear 1 31 drives the bevel gear 2 33 to rotate and further causes the positioning shaft 34, the paddle wheel 35 and the axle rod 36 to deflect synchronously. At this time, the positioning shaft 34, the paddle wheel 35 and the axle rod 36 shrink back into the cover plate 12, and the top end of the electric push rod 2 blocks the feed pipe of the cover plate 12, and then the subsequent rotation realizes the cleaning operation of the flocs entangled on the top end of the electric push rod 2, and at the same time realizes the intermittent injection of wastewater.

[0066] Furthermore, when the push plate 27 and the transmission roller 21 descend, the compression spring 32 is reset to drive the lifting shaft 3 and the bevel gear 1 31 to descend. At this time, the bevel gear 1 31 rotates the bevel gear 2 33 again, thereby enabling the positioning shaft 344, the paddle wheel 35 and the axle rod 36 to be reset and re-positioned directly below the feed pipe of the cover plate 12.

[0067] Embodiment 4:

[0068] See also Figure 6-Figure 8 This embodiment further illustrates the following on the basis of the third embodiment:

[0069] The transmission mechanism includes a beveled gear sleeve 5 fixedly connected to the outer contour of the middle section of the electric push rod 2, a transmission plate 51 is meshed and transmission-connected on the outer contour of the beveled gear sleeve 5, and the transmission plate 51 is limitedly rotatably connected to the inner contour of the middle section of the processing tank 1, the bottom end of the transmission plate 51 is fixedly connected to a gear ring 1 52, the bottom end of the gear ring 1 52 is meshed and transmission-connected to a transmission wheel 53, and the transmission wheel 53 is also limitedly rotatably connected to the inner contour of the processing tank 1, the bottom end of the transmission wheel 53 is meshed and transmission-connected to a gear ring 2 54, and the gear ring 2 54 A helical gear ring is fixedly connected to the inner contour of the tank 1, and a semi-helical gear 56 is meshed and transmission-connected on the helical gear ring of the gear ring 2 54. Fixed frames 55 are provided on both sides of the semi-helical gear 56, and the fixed frames 55 are fixedly connected to the inner contour of the processing tank 1. The two fixed frames 55 are penetrated by the same pin shaft and are rotationally connected to the semi-helical gear 56. A nozzle 57 is fixedly connected to the outer contour of the semi-helical gear 56 pointing to the electric push rod 2, and the nozzle 57 is connected to the external air pump through the semi-helical gear 56, the fixed frame 55 and the processing tank 1.

[0070] The suction mechanism includes a fixed frame 6 fixedly connected to the inner contour of the processing tank 1, the center of the fixed frame 6 is penetrated and connected to a rotating frame 61 for limited rotation, the middle section of the inner contour of the rotating frame 61 is fixedly connected to a partition 62, and the partition 62 divides the inside of the rotating frame 61 evenly into two temporary storage grooves, the top of the rotating frame 61 is penetrated and connected to two transmission rods 63 for transmission, the two transmission rods 63 respectively correspond to the two temporary storage grooves in the rotating frame 61, and the other transmission rods 63 are penetrated and connected to the two sides of the axis of the transmission wheel 53, the bottom end of the fixed frame 6 is penetrated and fixedly connected with a drain pipe 64 and a suction pipe 65, and the drain pipe 64 and the suction pipe 65 also correspond to the two temporary storage grooves in the rotating frame 61 respectively.

[0071] When the motor is turned on to drive the electric push rod 2 to work, the external air pump works synchronously. At this time, the nozzle 57 injects ozone gas into the treatment tank 1. When the electric push rod 2 is extended and retracted, the bevel gear sleeve 5 rises and falls synchronously, and the transmission plate 51 and the treatment tank 1 are connected to each other in a limited rotation manner, that is, the height of the transmission plate 51 does not change. At this time, the lifting and lowering of the bevel gear sleeve 5 causes the transmission plate 51 and the ring gear 1 52 to start rotating, and further, the transmission wheel 53 and the ring gear 2 54 rotate synchronously.

[0072] Furthermore, the rotation of the gear ring 2 54 drives the helical gear ring and the semi-helical gear 56 to move synchronously. At this time, the nozzle 57 moves along with the semi-helical gear 56, thereby causing the injection direction of the ozone gas to change. During the extension of the electric push rod 2, the injection direction of the nozzle 57 is deflected from top to bottom, and during the contraction of the electric push rod 2, the injection direction of the nozzle 57 is deflected from bottom to top.

[0073] It should be noted that, as the electric push rod 2 is extended, the sealing plate 23 releases the obstruction on the connecting groove of the rotating plate 24, causing the water to be injected into the lower half of the treatment tank 1. At this time, the deflection of the nozzle 57 from top to bottom can effectively increase the retention time of ozone bubbles in the water, thereby effectively improving its purification effect on the water; and as the electric push rod 2 is retracted, the rotating plate 24 synchronously descends. At this time, the deflection of the nozzle 57 from bottom to top can effectively rinse the outer contour of the collection frame 26, thereby avoiding the adhesion of grease and causing a decrease in purification quality.

[0074] On the other hand, after the ozone gas is injected into the water body, the rotating plate 24 descends to complete the pressurization of the treatment tank 1, and the solubility of the ozone gas in the water body increases. At this time, the bubbles formed in the water body are more uniform and smaller, and the constantly changing injection angle can make the bubbles completely cover the entire purification area; then the ozone dissolved in the water body acts as a strong oxidant to kill the microorganisms in the water body, and at the same time, the ozone bubbles attach to the suspended oil and impurities in the water body and simultaneously float to the surface of the water body to form a scum layer.

[0075] As the rotating plate 24 gradually descends, the collecting frame 26 comes into contact with the scum layer and collects and cleans the scum layer under the rotation of the driving roller 21. The collected scum enters the pushing plate 27 through the connecting groove of the rotating plate 24, and is discharged synchronously through the discharge port 13 along with large particle flocs after the driving roller 21 rises again.

[0076] At the same time, the rotation of the transmission wheel 53 drives the two transmission rods 63 to move synchronously, and the two transmission rods 63 further drive the rotating frame 61 to rotate. During the movement, the two transmission rods 63 are synchronously extended and retracted in the rotating frame 61, thereby realizing a reciprocating cycle compression process of the two temporary storage tanks divided by the partition 62 of the rotating frame 61, and the temporary storage tank located at the top of the suction pipe 65 is always in an expanded state, while the temporary storage tank located at the top of the discharge pipe 64 is always in a compressed state.

[0077] Furthermore, the internal space of the temporary storage tank at the top of the suction pipe 65 gradually increases, and the suction work of the purified water in the treatment tank 1 is realized through the suction pipe 65, and the internal space of the temporary storage tank gradually decreases after rotating to the top of the discharge pipe 64, and the sucked purified water is discharged along the discharge pipe 64.

[0078] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A wastewater treatment system for a tent hospital, characterized in that: The following steps are involved: S1, dynamic feeding: the wastewater to be treated is added through the feed pipe of the cover plate (12), and the feed components work synchronously to dynamically balance the amount of flocculant added according to the amount of wastewater added in a single time; S2, sedimentation filter press: after the flocculant reacts, the motor controls the filter press assembly to start working, and the filter press assembly filters and pressurizes the wastewater in the upper part of the treatment tank (1) to remove large solid impurities inside, while controlling the deflection of the feed assembly; S3, air flotation separation: While the filter press assembly is working, the air flotation assembly works synchronously, injecting bubbles into the filtered wastewater to remove suspended matter and small particle impurities in the wastewater and simultaneously kill microorganisms in the wastewater. At the same time, these impurities float to the surface of the water body to form a scum layer, which is discharged synchronously under the collection action of the filter press assembly; S4. Water suction: The suction mechanism works synchronously with the air flotation component to circulate and suck the purified water, and the suction process does not interfere with the purification work of the equipment, thereby ensuring the continuous working state of the equipment.

2. A wastewater treatment system for a tent hospital according to claim 1, characterized in that: The invention comprises a treatment tank (1) and a filter press assembly, a feed assembly and an air flotation assembly, wherein an I-shaped groove (11) is provided on the inner contour of the upper half of the treatment tank (1), a discharge port (13) is provided on the outer contour of the top of the treatment tank (1), and the discharge port (13) is communicated with the inside of the treatment tank (1), a cover plate (12) is fixedly connected to the top of the treatment tank (1), a feed pipe for adding wastewater is penetrated at the axis of the top of the cover plate (12), and a drug inlet for adding flocculant is penetrated at a position close to the feed pipe on the upper surface of the cover plate (12); The filter press assembly includes a limiting mechanism that performs lifting and stopping rotational motion and a collecting mechanism that opens and closes regularly to guide wastewater. The collecting mechanism is fixedly connected to the limiting mechanism. The air flotation assembly includes a transmission mechanism that moves synchronously with the limiting mechanism and ejects bubbles, and a suction mechanism for extracting purified water. The transmission mechanism is in transmission connection with the limiting mechanism, and the suction mechanism is in transmission connection with the transmission mechanism.

3. A wastewater treatment system for a tent hospital according to claim 2, characterized in that: The limiting mechanism comprises an electric push rod (2) fixedly connected to the axis center of the inner contour of the bottom end of the processing tank (1) and driven by a motor, the top end of the electric push rod (2) is penetrated by and transmission-connected to a transmission roller (21), and a guide groove is provided on the outer contour of the transmission roller (21); a positioning pin (22) is transmission-connected in the guide groove of the transmission roller (21), and the positioning pin (22) penetrates and is fixedly connected to the inner contour of the top end of the electric push rod (2); a plurality of annularly distributed sealing plates (23) are fixedly connected to the outer contour of the transmission roller (21) near the top end, a rotating plate (24) is sleeved on the outer contour of the sealing plate (23), and the rotating plate (24) and the transmission roller (21) are transmission-connected, and a filter screen (25) is penetrated by and rotationally connected to the outer contour of the transmission roller (21) near the sealing plate (23), and the filter screen (25) is fixedly connected to the inside of the rotating plate (24).

4. A wastewater treatment system for a tent hospital according to claim 2, characterized in that: The collecting mechanism comprises a connecting groove extending through the upper and lower surfaces of the rotating plate (24); limit blocks are arranged on both sides of the rotating plate (24); and the limit blocks of the rotating plate (24) are slidably connected to the I-shaped groove (11); a plurality of annularly distributed collecting frames (26) are fixedly connected to the bottom end of the rotating plate (24); and the number of the collecting frames (26) corresponds to the number of the connecting grooves; and a pushing plate (27) is fixedly connected to the top end of the rotating plate (24); and the spiral direction of the pushing plate (27) points to the position of the discharge port (13).

5. A wastewater treatment system for a tent hospital according to claim 2, characterized in that: The feeding assembly comprises a lifting shaft (3) which penetrates through and is slidably connected to the cover plate (12); a bevel gear 1 (31) is fixedly connected to the outer contour of the middle section of the lifting shaft (3); a compression spring (32) which is sleeved on the outer contour of the lifting shaft (3) is fixedly connected to the top of the bevel gear 1 (31); and the top of the compression spring (32) is fixedly connected to the lower surface of the cover plate (12); a bevel gear 2 (33) is meshed and transmission-connected to the outer contour of the bevel gear 1 (31); and the bevel gear 2 (33) is rotationally connected to the cover plate (12); the bottom end of the bevel gear 2 (33) is transmission-connected to a positioning shaft (34) arranged directly below the axis of the cover plate (12) through a connecting rod; and the positioning shaft (34) is rotationally connected to the connecting rod; a paddle wheel (35) is fixedly connected to the outer contour of the middle section of the positioning shaft (34); and a wheel axle rod (36) is fixedly connected to the outer contour of the top of the positioning shaft (34).

6. A wastewater treatment system for a tent hospital according to claim 5, characterized in that: The feed assembly also includes a fixed shaft (4) that passes through and is connected to the cover plate (12) for limited rotation, the bottom end of the fixed shaft (4) is fixedly connected to a blocking plate (42), the upper surface of the blocking plate (42) is fixedly connected to a torsion spring (41) that is sleeved on the outer contour of the torsion spring (41), and the other end of the torsion spring (41) is fixedly connected to the lower surface of the cover plate (12), one end of the blocking plate (42) is intermittently transmission-connected to the axle rod (36), and the other end of the blocking plate (42) is located directly below the drug inlet of the cover plate (12) and fits with each other.

7. A wastewater treatment system for a tent hospital according to claim 2, characterized in that: The transmission mechanism comprises an oblique gear sleeve (5) fixedly connected to the outer contour of the middle section of the electric push rod (2); a transmission plate (51) is meshed and transmission-connected on the outer contour of the oblique gear sleeve (5), and the transmission plate (51) is limitedly rotatably connected to the inner contour of the middle section of the processing tank (1); the bottom end of the transmission plate (51) is fixedly connected to a gear ring 1 (52); the bottom end of the gear ring 1 (52) is meshed and transmission-connected to a transmission wheel (53), and the transmission wheel (53) is also limitedly rotatably connected to the inner contour of the processing tank (1); the bottom end of the transmission wheel (53) is meshed and transmission-connected to a gear ring 2 (54), and the gear ring 2 (54) is A helical gear ring is fixedly connected to the inner contour of the first gear ring (54), and a semi-helical gear (56) is meshed and transmission-connected on the helical gear ring of the second gear ring (54). A fixing frame (55) is provided on both sides of the semi-helical gear (56), and the fixing frame (55) is fixedly connected to the inner contour of the processing tank (1). Both fixing frames (55) are penetrated by the same pin shaft and are rotationally connected to the semi-helical gear (56). A nozzle (57) is fixedly connected to the outer contour of the semi-helical gear (56) on the side pointing to the electric push rod (2), and the nozzle (57) is connected to an external air pump through the semi-helical gear (56), the fixing frame (55) and the processing tank (1).

8. A wastewater treatment system for a tent hospital according to claim 2, characterized in that: The suction mechanism comprises a fixed frame (6) fixedly connected to the inner contour of the processing tank (1); a rotating frame (61) is penetrated at the center of the fixed frame (6) and is limitedly rotatably connected thereto; a partition (62) is fixedly connected to the middle section of the inner contour of the rotating frame (61), and the partition (62) evenly divides the interior of the rotating frame (61) into two temporary storage grooves; two transmission rods (63) are penetrated at the top of the rotating frame (61) and are transmission-connected thereto; the two transmission rods (63) respectively correspond to the two temporary storage grooves in the rotating frame (61), and the other transmission rod (63) penetrates and is transmission-connected to the two sides of the axis of the transmission wheel (53); a liquid discharge pipe (64) and a suction pipe (65) are penetrated at the bottom of the fixed frame (6) and are fixedly connected thereto; the liquid discharge pipe (64) and the suction pipe (65) also respectively correspond to the two temporary storage grooves in the rotating frame (61).

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