An industrial wastewater treatment device

Abstract

The application discloses an industrial wastewater treatment device, relates to the technical field of wastewater treatment, and solves the technical problem that the surface of the scraper re-enters water to re-enter the attached dregs into water, so that the dregs are not cleaned, and oil stains remain in the wastewater; the device comprises a sewage treatment tank, a gas floatation chamber for removing oil stains in wastewater is arranged in the sewage treatment tank, an adsorption plate member for adsorbing and treating the dregs floating on the water surface, and a dregs cleaning member for cleaning the adsorption plate member adsorbing the dregs; the adsorption member, the dregs cleaning member, the circulation member and the drying member are combined, the adsorption frame plate is alternately turned over to adsorb the oil stain floating on the water surface, the saturated adsorption frame plate does not always dive into the water while alternately adsorbing, so that the oil stain does not cause the wastewater to be polluted again, the adsorption frame plate is kept from being changed from the saturated state to the unsaturated state, the continuous treatment of the oil stain in the wastewater is ensured, and the treatment efficiency and the cleanliness of the oil stain are improved.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of wastewater treatment, and specifically relates to an industrial wastewater treatment device. BACKGROUND

[0002] Industrial wastewater includes production wastewater, production sewage and cooling water, and refers to wastewater and waste liquid generated in industrial production, which contains industrial production materials, intermediate products, by-products and pollutants generated in the production process, so a corresponding treatment device is needed to make the wastewater quality reach the discharge standard.

[0003] The oil stains in the existing industrial wastewater are treated by using the air flotation method, so that the oil stains form dregs, and the dregs are scraped off by using a scraper, but the scraper repeatedly enters water to scrape off the dregs, and the scraper does not have a measure for cleaning the dregs attached to its surface, so that the dregs attached to the surface of the scraper enter water again when the scraper enters water again, so that the dregs are not cleaned, oil stains remain in the wastewater, and the subsequent aeration treatment is affected. SUMMARY

[0004] The present application aims to solve at least one of the technical problems existing in the prior art; for this purpose, the present application provides an industrial wastewater treatment device.

[0005] An industrial wastewater treatment device comprises:

[0006] A sewage treatment tank, wherein an air flotation chamber for removing oil stains in wastewater is formed inside the sewage treatment tank;

[0007] An adsorption plate for adsorbing and treating the dregs floating on the water surface;

[0008] A dreg cleaning member for cleaning the adsorption plate for adsorbing the dregs, wherein the cleaned adsorption plate can rotate and alternately adsorb and treat the dregs on the water surface;

[0009] A circulating member for introducing a washing liquid into the dreg cleaning member, and a drying member is used to accelerate the flow rate of the liquid.

[0010] Preferably, the adsorption plate for adsorbing the dregs on the water surface comprises:

[0011] An installation plate horizontally located above the air flotation chamber, wherein the upper and lower surfaces of the installation plate are provided with adsorption frame plates for adsorbing the dregs on the water surface;

[0012] The upper and lower surfaces of the installation plate are provided with sealing grooves.

[0013] Preferably, the dreg cleaning member for cleaning the saturated adsorption frame plate comprises:

[0014] A sealing cover located above the installation plate, wherein the lower surface of the sealing cover is provided with a sealing strip matched with the sealing groove.

[0015] A lifting cylinder is vertically installed above the sealing cover, and a piston rod inside the lifting cylinder is connected with the upper surface of the sealing cover.

[0016] Preferably, the circulating member for introducing washing water into the sealing cover comprises:

[0017] A circulating washing tank is installed on the rear surface of the sewage treatment tank.

[0018] A water suction pump and a water supply pump are installed on the upper surface of the circulating washing tank, a water supply pipe is arranged between the water suction pump and the sealing cover, and a water suction pipe is arranged between the water supply pump and the sealing cover.

[0019] Preferably, a rack is arranged at the right end of the sewage treatment tank, and a top plate for supporting the upper end of the lifting cylinder is arranged on the lower surface of the upper end of the rack.

[0020] Preferably, the drying member installed in the rack comprises:

[0021] A heating tank is installed on the lower surface of the upper end of the rack, and a heating member for heating the introduced gas is arranged in the heating tank.

[0022] A normal-temperature gas pipe is directly introduced into the sealing cover.

[0023] A gas supply pipe is connected with the heating tank, and a heated gas pipe is arranged between the heating tank and the sealing cover.

[0024] Preferably, the heating member comprises:

[0025] A guide cylinder is installed in the heating tank, and a plurality of heating rods are arranged on the inner circumference of the guide cylinder.

[0026] A conical shaft is installed at the center of the guide cylinder, and a helical blade is sleeved on the conical shaft.

[0027] Preferably, a turnover member is arranged between the rack and the adsorption plate, and the turnover member comprises:

[0028] A driving cylinder is vertically installed on the inner surfaces of the front and rear ends of the rack, and a mounting bracket is arranged at the lower end of the driving cylinder.

[0029] A turnover motor is installed at the inner end of the mounting bracket, and a connecting shaft is arranged between the turnover motor and the adsorption plate.

[0030] Preferably, the diameter of the rear end of the helical blade is smaller than the diameter of the front end, and a vertical plate is arranged between the inner wall of the guide cylinder and the conical shaft.

[0031] Preferably, a gas valve is arranged on the upper surface of the sealing cover, and a plurality of gas ports are arranged on the upper surface of the sealing cover.

[0032] Compared with the prior art, the present application has the following advantages:

[0033] (1)The present application can alternately let the adsorption frame plate flip the oil stain floating sludge on the water surface, and the alternately adsorbed saturated adsorption frame plate will not be immersed in the water, so as not to cause the oil stain floating sludge to pollute the wastewater again, and keep the saturated adsorption frame plate to change into an unsaturated state, ensure the continuous treatment of the oil stain floating sludge in the wastewater, and improve the treatment efficiency and cleanliness of the oil stain floating sludge.

[0034] (2)The present application can quickly dry the saturated adsorption frame plate after washing, improve the adsorption frame plate from saturated to unsaturated state, let the adsorption frame plate quickly alternate adsorption of oil stain floating sludge, and improve the removal efficiency of oil stain floating sludge in wastewater.

[0035] (3)The present application can realize the lifting of the adsorption plate member, and change the position of the adsorption frame plate according to the need, so as to alternately rotate the adsorption frame plate, facilitate timely adsorption treatment of the floating sludge on the water surface, and avoid the floating sludge repeatedly entering the water compared with the scraper, increase the cleanliness of the oil stain floating sludge treatment in the wastewater. BRIEF DESCRIPTION OF DRAWINGS

[0036] Figure 1 is a structural schematic view of the industrial wastewater treatment device of the present application;

[0037] Figure 2 is a rear view structural schematic view of the industrial wastewater treatment device of the present application;

[0038] Figure 3 is a structural schematic view of the oil stain floating sludge treatment in the present application; Figure 2

[0039] Figure 4 is a left view structural schematic view of the oil stain floating sludge treatment structure in the present application; Figure 3

[0040] Figure 5 is a structural schematic view of the floating sludge cleaning member in the present application; Figure 4

[0041] Figure 6 is an exploded view of the adsorption plate member in the present application; Figure 4

[0042] Figure 7 is a structural schematic view of the drying member in the present application; Figure 4

[0043] Figure 8 is a structural schematic view of the inside of the heating box in the present application; ​​​​​

[0044] Figure 9 For the invention Figure 5 Enlarged view of A area in the invention

[0045] In the figure: 100, sewage treatment tank; 101, air floatation chamber; 200, adsorption plate; 201, mounting plate; 202, adsorption frame plate; 203, sealing groove; 300, scum cleaning component; 301, sealing cover; 302, lifting cylinder; 303, top plate; 304, sealing strip; 305, air valve; 400, rack; 500, circulating component; 501, circulating washing tank; 502, water suction pump; 503, water delivery pump; 504, water suction pipe; 505, water delivery pipe; 600, drying component; 601, heating tank; 602, heating air pipe; 603, normal temperature air pipe; 604, air delivery pipe; 605, air inlet; 606, heating component; 6061, guide cylinder; 6062, heating rod; 6063, conical shaft; 6064, helical blade; 6065, vertical plate; 700, overturning component; 701, driving cylinder; 702, mounting rack; 703, overturning motor; 704, connecting shaft. DETAILED DESCRIPTION

[0046] The technical solutions of the present application will be described clearly and completely below in conjunction with the embodiments. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0047] Embodiment one

[0048] Please refer to Figure 1 - Figure 7 The present application provides an industrial wastewater treatment device, comprising:

[0049] The sewage treatment tank 100 is internally provided with an air floatation chamber 101 for removing oil stains in wastewater;

[0050] The adsorption plate 200 is used for adsorbing the scum floating on the water surface. The number of adsorption frame plates 202 in the adsorption plate 200 can be set as required. By combining the adsorption plate 200, the scum cleaning component 300, the circulating component 500 and the drying component 600, the adsorption frame plates 202 can be alternately overturned to adsorb the oil stain scum on the water surface. The saturated adsorption frame plates 202 will not be kept in the water all the time while being alternately adsorbed, so that the oil stain scum will not pollute the wastewater again, and the adsorption frame plates 202 can be kept in the saturated state to the unsaturated state, ensuring the continuous treatment of the oil stain scum in the wastewater and improving the treatment efficiency and cleanliness of the oil stain scum;

[0051] The scum cleaning member 300 is used to clean the adsorption plate member 200, and the cleaned adsorption plate member 200 can be used to adsorb the water surface scum alternately;

[0052] The circulation member 500 is used to circulate the washing liquid into the scum cleaning member 300, and the drying member 600 is used to accelerate the flow rate of the liquid, and the circulation member 500 is used to clean the saturated adsorption frame plate 202 by using the washing water repeatedly.

[0053] In this embodiment, the adsorption plate member 200 used to adsorb the water surface scum includes: the mounting plate 201 horizontally arranged above the air floatation chamber 101, the adsorption frame plate 202 arranged on the upper and lower surfaces of the mounting plate 201 and used to adsorb the water surface scum, the mounting direction of the adsorption frame plate 202 is adapted to the overturning of the mounting plate 201, so that the inclined surface is matched with the water surface, the adsorption frame plate 202 is composed of the adsorption structure of zeolite and is used to adsorb the oil scum, and the adsorption frame plate 202 is viewed as a right-angled trapezoid, the inclined surface is located in the middle, and the oil scum is adsorbed along the water flow to the inclined surface.

[0054] The sealing groove 203 is arranged on the upper and lower surfaces of the mounting plate 201.

[0055] In this embodiment, the scum cleaning member 300 used to clean the saturated adsorption frame plate 202 includes:

[0056] The sealing cover 301 is arranged above the mounting plate 201, the lower surface of the sealing cover 301 is provided with the sealing strip 304 matched with the sealing groove 203, the sealing strip 304 can be a silica gel strip, and the sealing strip 304 is matched with the sealing groove 203, so that the washing water cannot overflow.

[0057] The lifting cylinder 302 is vertically arranged above the sealing cover 301, the piston rod in the lifting cylinder 302 is connected with the upper surface of the sealing cover 301, and the height of the sealing cover 301 can be changed by using the lifting cylinder 302.

[0058] In this embodiment, the circulation member 500 used to circulate the washing water into the sealing cover 301 includes:

[0059] The circulation washing box 501 is arranged on the rear surface of the sewage treatment box 100, the surface of the circulation washing box 501 is provided with the feeding port, the detergent can be added into the circulation washing box 501, and the washing water used to remove the oil stain is formed.

[0060] The water pump 502 and the water pump 503 are installed on the upper surface of the circulating washing box 501, the water pump 502 is provided with a water supply pipe 505 between the sealing cover 301, the water pump 503 is provided with a water suction pipe 504 between the sealing cover 301, the water pump 502 and the water pump 503 cooperate, which can send the washing water in the circulating washing box 501 into the sealing cover 301, and also can suck the washing water in the sealing cover 301 and send it back to the circulating washing box 501, so as to realize the cleaning of the saturated adsorption frame plate 202 by the washing water circulation.

[0061] In the embodiment, preferably, the sewage treatment box 100 is provided with a rack 400 at the right end, and the rack 400 is provided with a top plate 303 supporting the upper end of the lifting cylinder 302 at the lower surface of the upper end, so as to facilitate the installation of the two lifting cylinders 302.

[0062] In summary, when one of the adsorption frame plates 202 faces downward to adsorb the oil and scum on the surface of the wastewater, the other adsorption frame plate 202 faces upward, and when the adsorption frame plate 202 facing downward is saturated, the installation plate 201 is turned over by the turnover member 700, and the saturated adsorption frame plate 202 moves upward, while the unsaturated adsorption frame plate 202 faces downward to adsorb the oil and scum. At this time, the lifting cylinder 302 works, the piston rod in the lifting cylinder 302 extends, drives the sealing cover 301 to move downward, the sealing strip 304 is embedded in the sealing groove 203, the sealing cover 301 and the installation plate 201 form a sealed space, the sealing strip 304 is extruded, and the washing water in the sealed space will not overflow, the water pump 503 works to send the water in the circulating washing box 501 into the sealed space, at this time, the water pump 502 does not work, and when the washing water in the sealed space is sufficient, the water supply is stopped, the air supply pipe 604 in the drying member 600 sends the external gas into the sealed space, so that the washing water in the sealed space flows and rolls continuously, and the oil and scum attached to the adsorption frame plate 202 is removed. After cleaning for a period of time, the water pump 502 works to send the water in the sealed space back into the circulating washing box 501, after the water in the sealed space is pumped away, the external air supply system sends the gas into the heating box 601 to be heated, and the heated gas is sent into the sealed space through the heating gas pipe 602. The heated gas circulates in the sealed space to dry the cleaned adsorption frame plate 202, so that the adsorption frame plate 202 is quickly dried. After drying is completed, the lifting cylinder 302 works, the piston rod in the lifting cylinder 302 retracts, drives the sealing cover 301 to move upward away from the installation plate 201, until it does not affect the turnover of the adsorption frame plate 202. After the lifting cylinder 302 stops working, the sealing cover 301 stops moving, so as to facilitate the subsequent turnover of the installation plate 201 by the turnover member 700, so as to realize the continuous adsorption of the oil and scum by the adsorption frame plate 202, and the oil and scum will not continuously enter the wastewater when the scraper scrapes the oil and scum, so as to increase the cleaning degree of the oil and scum in the wastewater.

[0063] Embodiment two

[0064] Referring to Figure 7 and Figure 8 , the second embodiment of the present application.

[0065] In this embodiment, preferably, by setting the drying member 600, both the circulation member 500 can be assisted to speed up the washing water to the saturated adsorption frame plate 202 flushing flow speed, but also can be quickly dried after washing the adsorption frame plate 202, improve the adsorption frame plate 202 from the saturated to unsaturated state, the adsorption frame plate 202 quickly alternate adsorption of oil dirt scum, installed in the drying member 600 inside the rack 400, comprising:

[0066] The heating box 601 is installed on the lower surface of the upper end of the rack 400, and the heating box 601 is provided with a heating member 606 for heating the gas entering the inside;

[0067] The normal temperature gas pipe 603 is directly connected to the sealing cover 301, one end of the normal temperature gas pipe 603 is connected to the gas supply pipeline outside the world, and the other end of the normal temperature gas pipe 603 is connected to one of the gas ports 605, so that the normal temperature gas pipe 603 is communicated with the sealing cover 301, and the heating gas pipe 602 and the normal temperature gas pipe 603 are soft gas pipes, which do not affect the movement of the sealing cover 301;

[0068] The gas supply pipe 604 is connected with the heating box 601, and the heating gas pipe 602 is arranged between the heating box 601 and the sealing cover 301. The heating gas pipe 602 is a Y-shaped pipe, and the lower end of the heating gas pipe 602 is connected with two gas ports 605, so that the heated gas can pass through the sealing cover 301.

[0069] In this embodiment, preferably, the heating member 606 comprises:

[0070] The guide cylinder 6061 is installed in the heating box 601, and a plurality of heating rods 6062 are arranged on the inner circumference of the guide cylinder 6061;

[0071] The conical shaft 6063 is installed at the center of the guide cylinder 6061, and the spiral blade 6064 is sleeved on the conical shaft 6063. The spiral blade 6064 can guide the gas entering the guide cylinder 6061, and the gas can float along the arc of the spiral blade 6064 to the heating rod 6062, so that the gas can be heated.

[0072] In summary, the two ventilation functions of the drying member 600 can achieve different effects. When the sealing cover 301 is pressed on the upper surface of the mounting plate 201, the two form a sealed space for cleaning the upper adsorption frame plate 202. When washing water is introduced into the sealing cover 301, the heating air pipe 602 is closed by the valve, and the valve on the normal temperature air pipe 603 is opened. The external gas supply system supplies gas to the normal temperature air pipe 603, and the gas is directly introduced into the sealing cover 301. The water in the sealed space is stirred by the gas, and the water in the sealed space flows quickly. The water passes through the gap on the adsorption frame plate 202, and the floating sludge and dirt on the surface of the adsorption frame plate 202 enter the water. The introduced gas is discharged through the air valve 305. After the adsorption frame plate 202 is completely cleaned, the water in the sealed space is pumped out. After the water in the sealed space is pumped out, the valve on the normal temperature air pipe 603 is closed, and the valve on the heating air pipe 602 is opened. The external gas supply system introduces gas into the air pipe 604. The introduced gas enters the heating box 601 and the guide cylinder 6061. The gas moves forward along the spiral blade 6064 and approaches the heating rod 6062. The gas is heated by the heating rod 6062. The heated gas is introduced into the sealed space through the heating air pipe 602. The heated gas dries the cleaned adsorption frame plate 202, so that the adsorption frame plate 202 changes from a saturated state to an unsaturated state. After drying is completed, the adsorption frame plate 202 is exposed by moving the sealing cover 301 upward, so that the adsorption frame plate 202 can be rotated downward again to re-adsorb the floating sludge.

[0073] Example three

[0074] Reference Figure 9 The third embodiment of the present application.

[0075] In this embodiment, preferably, a turnover member 700 is arranged between the rack 400 and the adsorption plate member 200. The turnover member 700 can realize the lifting of the adsorption plate member 200 and change the position of the adsorption frame plate 202 as needed, so that the floating sludge on the water surface can be adsorbed and treated in time. Compared with the scraper, the turnover member 700 can avoid the repeated entry of the floating sludge into the water. The turnover member 700 comprises:

[0076] A drive cylinder 701 is vertically installed on the inner surface of the front and rear ends of the rack 400. The piston rod in the drive cylinder 701 is fixed to the upper surface of a mounting bracket 702. The lower end of the drive cylinder 701 is provided with the mounting bracket 702.

[0077] The overturning motor 703 is installed at the inner end of the mounting frame 702, the mounting frame 702 is L-shaped, the overturning motor 703 is installed at the vertical end of the mounting frame 702, the connecting shaft 704 is arranged between the overturning motor 703 and the adsorption plate 200, the overturning motor 703 drives the connecting shaft 704 to rotate, the connecting shaft 704 is fixedly connected with the mounting plate 201, and the mounting plate 201 is overturned. The rectangular mounting plate 201 can be replaced as needed, and is replaced with a polygonal shape, which facilitates the installation of multiple adsorption frame plates 202.

[0078] In the embodiment, preferably, the rear end diameter of the spiral blade 6064 is smaller than the front end diameter, facilitating the flow of gas from the rear end to the front, and the vertical plate 6065 is arranged between the inner wall of the guide cylinder 6061 and the conical shaft 6063 to support the conical shaft 6063.

[0079] In the embodiment, preferably, the upper surface of the sealing cover 301 is provided with the air valve 305, which facilitates the discharge of gas in the sealing cover 301, and the upper surface of the sealing cover 301 is provided with multiple air ports 605.

[0080] In summary, when the mounting plate 201 needs to be overturned, the driving cylinder 701 works, the piston rod in the driving cylinder 701 retracts to drive the mounting frame 702 to move upward, drive the mounting plate 201 to move upward, the overturning motor 703 works to drive the mounting plate 201 to overturn, and the saturated adsorption frame plate 202 below is overturned to the upper side, and the saturated adsorption frame plate 202 is cleaned. The unsaturated adsorption frame plate 202 treated on the upper side is turned to the lower side, and the piston rod in the driving cylinder 701 extends to drive the adsorption frame plate 202 to move downward to adsorb and treat the oil and scum on the water surface, thereby increasing the convenience of use of the adsorption frame plate 202.

[0081] Embodiment Four

[0082] This embodiment is obtained by combining Embodiment One, Embodiment Two and Embodiment Three.

[0083] In use, the overturning member 700 is used to change the angle of the adsorption plate 200, thereby alternately changing the positions of the multiple adsorption frame plates 202, allowing the circulating member 500 and the drying member 600 to wash and dry the saturated adsorption frame plate 202, changing the saturated adsorption frame plate 202 to an unsaturated state, and allowing the unsaturated adsorption frame plate 202 to again adsorb and treat the oil and scum on the wastewater, thereby continuously cleaning the oil and scum on the surface of the wastewater, and compared with the cleaning by the scraper, the oil and scum on the surface of the scraper will not be re-polluted into the water, thereby increasing the cleaning degree of the oil and scum in the wastewater.

[0084] The above examples are only used to illustrate the technical method of the present application but not limit the present application. Although the present application is described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical method of the present application can be modified or equivalently replaced without departing from the spirit and scope of the technical method of the present application.

Claims

1. An industrial wastewater treatment apparatus, characterized by, include: Wastewater treatment tank (100), wherein the wastewater treatment tank (100) is provided with an air flotation chamber (101) for removing oil from wastewater. Adsorption plate (200) for adsorbing scum floating on the water surface. A scum cleaning component (300) cleans the adsorption plates (200) that adsorb scum, and the cleaned adsorption plates (200) can rotate alternately to adsorb scum on the water surface. A circulation component (500) that introduces washing liquid into the scum cleaning component (300) and a drying component (600) to accelerate the flow rate of the liquid; The adsorption plate (200) for adsorbing scum on the water surface includes: An installation plate (201) is horizontally located above the flotation chamber (101), and the upper and lower surfaces of the installation plate (201) are provided with adsorption frame plates (202) for adsorbing scum on the water surface. The mounting plate (201) has sealing grooves (203) on both its upper and lower surfaces; The scum cleaning component (300) for cleaning the saturated adsorption frame plate (202) includes: A sealing cover (301) is located above the mounting plate (201), and a sealing strip (304) that cooperates with the sealing groove (203) is provided on the lower surface of the sealing cover (301). A lifting cylinder (302) is vertically installed above the sealing cover (301), and the piston rod inside the lifting cylinder (302) is connected to the upper surface of the sealing cover (301); The circulation component (500) for introducing washing water into the interior of the sealing cap (301) includes: A circulating washing tank (501) is installed on the rear surface of the sewage treatment tank (100); A water pump (502) and a water delivery pump (503) are installed on the upper surface of the circulating washing tank (501). A water delivery pipe (505) is provided between the water pump (502) and the sealing cover (301), and a water pump (504) is provided between the water delivery pump (503) and the sealing cover (301). The wastewater treatment tank (100) is provided with a frame (400) at the right end, and a top plate (303) supporting the upper end of the lifting cylinder (302) is provided on the lower surface of the upper end of the frame (400). The drying component (600) installed inside the rack (400) includes: A heating box (601) is installed on the lower surface of the upper end of the frame (400), and a heating component (606) for heating the introduced gas is provided inside the heating box (601). A room temperature gas pipe (603) is directly connected to the sealing cap (301); A gas supply pipe (604) is connected to the heating box (601), and a heating gas pipe (602) is provided between the heating box (601) and the sealing cover (301).

2. An industrial wastewater treatment apparatus as claimed in claim 1, wherein The heating element (606) includes: A guide cylinder (6061) is installed inside the heating box (601), and multiple heating rods (6062) are arranged around the inner circumference of the guide cylinder (6061). A tapered shaft (6063) is installed at the center of the guide cylinder (6061), and a spiral blade (6064) is sleeved on the tapered shaft (6063).

3. An industrial wastewater treatment apparatus as claimed in claim 2, wherein A flipping member (700) is provided between the frame (400) and the adsorption plate (200), the flipping member (700) comprising: The driving cylinder (701) is vertically installed on the inner surface of the front and rear ends of the rack (400), and the lower end of the driving cylinder (701) is provided with a mounting frame (702); The turnover motor (703) is installed in the inner end of the mounting frame (702), and a connecting shaft (704) is arranged between the turnover motor (703) and the adsorption plate (200).

4. An industrial wastewater treatment apparatus as claimed in claim 3, wherein The rear end diameter of the spiral blade (6064) is smaller than the front end diameter, and a vertical plate (6065) is arranged between the inner wall of the guide cylinder (6061) and the conical shaft (6063).

5. An industrial wastewater treatment apparatus as claimed in claim 4, wherein The upper surface of the sealing cover (301) is provided with an air valve (305), and the upper surface of the sealing cover (301) is provided with a plurality of air ports (605).

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