Separating device for sewage treatment

Abstract

The invention discloses a separation device for sewage treatment, and particularly relates to the technical field of sewage treatment.The separation device comprises a separation cylinder, a centrifugal mechanism is fixedly connected to the upper middle portion of the inner surface of the separation cylinder, a filtering mechanism is slidably connected to the middle of the inner surface of the separation cylinder, and an air inlet mechanism is arranged on the upper portion of the filtering mechanism; a floating mechanism is fixedly connected to the middle of the inner surface of the separation cylinder, and a separation mechanism is arranged on the lower portion of the transmission mechanism. According to the separation device for sewage treatment, a floating ball is matched with a rising sewage surface, sealing and unlocking of a sealing roller to the interior of a gas guide pipe are controlled through cooperation of the floating ball and the like, so that connection and disconnection of carbon dioxide gas are achieved, the PH of sewage is adjusted, meanwhile, through cooperative arrangement of three L-shaped spray heads, continuous rotation of the three L-shaped spray heads is achieved, and the separation efficiency is improved. The reaction of carbon dioxide gas and sewage can be accelerated to adjust the pH value, and reacted sewage and unreacted sewage can be uniformly mixed.

Description

Technical Field

[0001] The invention relates to the technical field of sewage treatment, and in particular to a separation device for sewage treatment. Background Art

[0002] In the concrete production process, mixers, transport vehicles and other equipment need to be cleaned after use to prevent concrete from agglomerating and affecting the normal operation and service life of the equipment. A large amount of sewage is generated when cleaning the equipment. The sewage from equipment cleaning contains a large amount of cement slurry, sand and gravel particles, etc., with a high content of suspended matter. Due to the composition characteristics of cement, the pH value of sewage is usually high and strongly alkaline. Before the sewage enters the treatment system, it first passes through the grid to intercept larger solid impurities in the sewage and separate the sand and gravel to prevent these impurities from entering the subsequent treatment equipment.

[0003] Chinese patent announcement number CN107569907B discloses a sewage coagulation filtration separation device for sewage treatment, including a mounting frame, etc.; a quantitative mechanism is provided on the left side of the top of the mounting frame, a stirring box is connected to the mounting frame, the lower part of the quantitative mechanism is connected to the upper part of the left side of the stirring box, and a stirring mechanism is provided on the upper part of the mounting frame. The invention sets up a sewage coagulation filtration separation device for sewage treatment, and the setting of the stirring mechanism can achieve a full reaction between sewage and coagulant, so that the colloidal particles in the sewage are condensed and flocculated, but the above device cannot achieve the effect of controlling the on-off of the gas input for adjusting the pH of sewage by raising and lowering the sewage liquid level during the sewage treatment process. Summary of the invention

[0004] The main purpose of the present invention is to provide a separation device for sewage treatment, which can effectively solve the problem of controlling the on-off of gas input for adjusting the pH of sewage by raising and lowering the sewage liquid level.

[0005] To achieve the above object, the technical solution adopted by the present invention is:

[0006] A separation device for sewage treatment comprises a separation cylinder, a transmission mechanism is fixedly connected to the middle part of the upper end of the separation cylinder, a centrifugal mechanism is fixedly connected to the middle and upper part of the inner surface of the separation cylinder, a resin exchange membrane is fixedly connected to the middle and upper part of the inner surface of the separation cylinder, a filtering mechanism is slidably connected to the middle part of the inner surface of the separation cylinder, an air intake mechanism is arranged on the upper part of the filtering mechanism, a floating mechanism is fixedly connected to the middle part of the inner surface of the separation cylinder, a separation mechanism is arranged at the lower part of the transmission mechanism, and an ultrafiltration membrane is fixedly connected to the lower part of the inner surface of the separation cylinder.

[0007] Preferably, a feed port is symmetrically fixedly connected to the upper end of the separation cylinder, a circular hole is opened in the middle of the upper end of the separation cylinder, a circular groove 1 is opened in the middle of the inner surface of the separation cylinder, a circular groove 2 is opened in the middle of the inner surface of the separation cylinder below the circular groove 1, and an inclined groove is symmetrically opened on the inner surface of the separation cylinder between the circular groove 1 and the circular groove 2. Baffles are symmetrically rotatably connected to the inner surface of the inclined groove, and a spring 1 is fixedly connected to the side of the two baffles away from each other, and a water outlet is opened in the middle of the bottom wall of the inner surface of the separation cylinder.

[0008] Preferably, the transmission mechanism comprises a motor fixedly connected to the upper end of the separation cylinder, a roller is fixedly connected to the output end of the motor, and an upper middle portion of the outer surface of the roller is rotatably connected to the inner surface of the circular hole.

[0009] Preferably, the centrifugal mechanism comprises a conical centrifugal cylinder fixedly connected to the middle and upper part of the outer surface of the roller, a guide cylinder is fixedly connected to the middle and upper part of the inner surface of the separation cylinder, and the upper end of the guide cylinder is flush with the upper end of the conical centrifugal cylinder.

[0010] Preferably, the filtering mechanism comprises a first filter plate fixedly connected to the middle of the outer surface of the roller, a second filter plate is arranged on the outer surface of the roller, and a slider is symmetrically fixedly connected to the outer surface of the second filter plate.

[0011] Preferably, the air intake mechanism includes a ventilation pipe fixedly connected to the side wall of the inner surface of the separation cylinder, one end of the ventilation pipe is fixedly connected to an air guide pipe, the side of the air guide pipe away from the ventilation pipe is fixedly connected to a Y-shaped pipe, the side of the Y-shaped pipe away from the air guide pipe is fixedly connected to two hard tubes 1, the upper part of the inner surface of the two hard tubes 1 is provided with a hard tube 2, and the upper ends of the two hard tubes 2 are provided with three L-shaped nozzles in a circular array.

[0012] Preferably, a stopper is fixedly connected to the upper end of the hard tube 1, a ring 1 is fixedly connected to the lower end of the hard tube 2, the lower end of the stopper is slidably connected to the upper end of the ring 1, and a sealing ring is fixedly connected to the outer surface of the hard tube 2 at the upper end of the stopper.

[0013] Preferably, the floating mechanism includes a fixed plate fixedly connected to the side wall of the inner surface of the separation cylinder, the upper end of the fixed plate is symmetrically fixedly connected to a vertical plate, two vertical plates are close to each other and are connected to a rotating plate on one side for common rotation, the upper end of the rotating plate is fixedly connected to a float on the side away from the air duct, and the lower end of the rotating plate is fixedly connected to a circular plate on the side close to the air duct.

[0014] Preferably, the upper end of the air guide tube is fixedly connected to a sealing cylinder, the middle and upper part of the inner surface of the air guide tube is fixedly connected to a fixing ring three, the upper end of the fixing ring three is fixedly connected to a spring two, the upper end of the spring two is fixedly connected to a circular ring two, the top wall of the inner surface of the sealing cylinder is slidably connected to a push rod, the lower end of the push rod is fixedly connected to a sealing roller, the upper end of the push rod is tightly attached to the lower end of the circular plate, and the middle part of the outer surface of the push rod is fixedly connected to the inner surface of the circular ring two.

[0015] Preferably, the separation mechanism includes a one-way rotating shaft 1 fixedly connected to the middle and lower part of the outer surface of the roller, a fixing ring 2 is fixedly connected to the outer surface of the one-way rotating shaft 1, a guide ring is fixedly connected to the outer surface of the fixing ring 2, a filter ring is fixedly connected to the lower end of the guide ring, a U-shaped cylinder is fixedly connected to the lower end of the filter ring, the one-way rotating shaft 2 is fixedly connected to the lower part of the outer surface of the roller, a fixing ring 1 is fixedly connected to the outer surface of the one-way rotating shaft 2, a plurality of empty tubes are arranged in a circular array on the outer surface of the fixing ring 1, and the outer surface of the guide ring is slidably connected to the inner surface of the separation cylinder.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. The present invention separates the fine sand particles remaining in the sewage first through the cooperation between various structures, and then slowly exchanges the soluble calcium ions in the sewage to prevent them from becoming insoluble calcium salt precipitates; at the same time, in the process of adjusting the pH value of the sewage, the unreacted carbon dioxide gas overflows from the sewage and moves upward, and the resin exchange membrane is backwashed from bottom to top, which can effectively prevent the surface of the resin exchange membrane from being blocked and contaminated, maintain its exchange performance, extend the service life of the resin exchange membrane, and reduce the frequency of manual cleaning or replacement of the membrane. At the same time, the floating mechanism and the air intake mechanism cooperate with each other, and the automatic introduction and closing of the introduced gas is realized through the changes in the sewage water surface.

[0018] 2. The present invention uses a floating ball to cooperate with the rising and falling sewage water level. When the sewage water level rises to a set value, the sealing roller is used to release the seal lock on the inside of the air duct through the cooperation of the floating ball, etc., so that carbon dioxide gas is automatically introduced through the air duct, etc. to adjust the pH of the sewage. At the same time, through the coordinated arrangement of three L-shaped nozzles, during the process of carbon dioxide gas introduction, the reaction force of the gas spray is used to realize the continuous rotation of the three L-shaped nozzles, which can not only accelerate the reaction of carbon dioxide gas with sewage to adjust the pH, but also evenly mix the reacted sewage and the unreacted sewage. Similarly, by cooperating with filter plate one and filter plate two, filter plate one and filter plate two can be made to be close to each other to achieve sealing of sewage, and filter plate one and filter plate two can be separated to achieve re-sealing of the air duct. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0020] Figure 2 It is a schematic diagram of the internal overall structure of the present invention;

[0021] Figure 3 It is a schematic diagram of the cross-sectional structure of the separation cylinder of the present invention;

[0022] Figure 4 For the present invention Figure 3 The enlarged structural diagram at A in the middle;

[0023] Figure 5 It is a schematic diagram of the centrifugal mechanism structure of the present invention;

[0024] Figure 6 It is a schematic diagram of the structure of the filtering mechanism of the present invention;

[0025] Figure 7 This is a schematic diagram of the structure of the air intake mechanism and the floating mechanism of the present invention;

[0026] Figure 8 It is a schematic diagram of the partial structure of the air intake mechanism of the present invention;

[0027] Fig. 9 It is a schematic diagram of the floating mechanism structure of the present invention;

[0028] Fig.10 It is a schematic diagram of the separation mechanism structure of the present invention.

[0029] In the figure: 1, separation cylinder; 11, feed port; 12, round hole; 13, round groove 1; 14, round groove 2; 15, water outlet; 16, inclined groove; 17, baffle; 18, spring 1; 2, transmission mechanism; 21, motor; 22, roller; 3, air intake mechanism; 31, vent pipe; 32, Y-shaped pipe; 33, hard pipe 1; 331, block; 34, hard pipe 2; 341, round ring 1; 342, sealing ring; 35, L-shaped nozzle; 36, air guide pipe; 4, centrifugal mechanism; 41, guide cylinder; 42, conical centrifugal cylinder; 5, resin exchange membrane; 6. Filter mechanism; 61. Filter plate one; 62. Filter plate two; 621. Sliding block; 7. Ultrafiltration membrane; 8. Separation mechanism; 81. Guide ring; 82. Filter ring; 83. U-shaped cylinder; 84. Fixed ring one; 85. Empty pipe; 86. Fixed ring two; 87. One-way rotating shaft one; 88. One-way rotating shaft two; 9. Floating mechanism; 91. Fixed plate; 92. Vertical plate; 93. Rotating plate; 931. Round plate; 94. Float; 95. Push rod; 96. Sealing cylinder; 97. Sealing roller; 98. Spring two; 981. Round ring two; 99. Fixed ring three. DETAILED DESCRIPTION

[0030] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0031] Embodiment 1, as Figure 1 and Figure 2 As shown, a separation device for sewage treatment includes a separation cylinder 1, a transmission mechanism 2 is fixedly connected to the middle of the upper end of the separation cylinder 1, a centrifugal mechanism 4 is fixedly connected to the middle and upper part of the inner surface of the separation cylinder 1, a resin exchange membrane 5 is fixedly connected to the middle and upper part of the inner surface of the separation cylinder 1, a filtering mechanism 6 is slidably connected to the middle of the inner surface of the separation cylinder 1, an air intake mechanism 3 is arranged on the upper part of the filtering mechanism 6, the air intake mechanism 3 includes an air guide pipe 36, a floating mechanism 9 is fixedly connected to the middle part of the inner surface of the separation cylinder 1, a separation mechanism 8 is arranged at the lower part of the transmission mechanism 2, and an ultrafiltration membrane 7 is fixedly connected to the lower part of the inner surface of the separation cylinder 1.

[0032] During the concrete production process, the production site needs to be continuously flushed. After the preliminary sand and gravel separation, the separated sewage is quantitatively passed from the upper end of the separation cylinder 1 into the inner surface of the separation cylinder 1, and the sewage is separated and processed in batches and quantitatively. At the same time, the separated concrete sand and gravel can be reused to avoid waste of resources.

[0033] After the sewage is passed into the upper part of the inner surface of the separation cylinder 1, a certain amount of sewage is first passed through the cooperation of the transmission mechanism 2 and the centrifugal mechanism 4, and some fine sand particles remaining in the sewage are retained in the centrifugal mechanism 4 through centrifugation, and the separated sewage is guided by the centrifugal mechanism 4 and gradually passes through the resin exchange membrane 5 and falls on the upper part of the filter mechanism 6. Through the cooperation of the resin exchange membrane 5, the soluble calcium ions in the sewage can be exchanged out, and the sewage discharge can avoid the soluble calcium ions from becoming insoluble calcium salt precipitates and clogging the pipeline. As the water level of the sewage on the upper part of the filter mechanism 6 gradually rises, through the cooperation of the floating mechanism 9, when the water level on the upper part of the filter mechanism 6 reaches the set value, at this time, due to the effect of buoyancy, through the cooperation of the floating mechanism 9, the carbon dioxide gas can be controlled to pass from the air intake mechanism 3 into the inner surface of the separation cylinder 1, and mix with the sewage on the upper part of the filter mechanism 6 to adjust the pH value of the sewage;

[0034] In the process of adjusting the pH value of the sewage, the carbon dioxide gas that has not yet reacted overflows from the sewage and moves upward, and the resin exchange membrane 5 is backwashed from bottom to top during the rising process of the carbon dioxide gas;

[0035] After the pH value of the sewage is adjusted by a certain amount of carbon dioxide gas, the adjusted sewage is passed into the separation mechanism 8 through the cooperation of the transmission mechanism 2 and the filtering mechanism 6. The gel produced by the continuous hydration of a small amount of cement particles in the sewage in the sewage is removed through the cooperation of the separation mechanism 8 and the transmission mechanism 2. Then, the sewage after the gel is removed can slowly fall on the upper end of the ultrafiltration membrane 7 again. The colloids, microorganisms, etc. in the sewage are intercepted by the cooperation of the ultrafiltration membrane 7. After a series of treatments, the sewage is collected and subjected to the next standard detection operation, and discharged after meeting the standards.

[0036] The resin exchange membrane 5 mentioned above contains ion exchange fillers commonly used in the prior art. When the sewage passes through the resin exchange membrane 5, the soluble calcium ions in the sewage can be adsorbed and exchanged.

[0037] Similarly, the ultrafiltration membrane 7 mentioned above is a commonly used method in the prior art, which can adsorb and retain colloids, microorganisms, etc. in the sewage after the sewage passes through the ultrafiltration membrane 7.

[0038] During the operation of this embodiment, through the cooperation between various structures, the fine sand particles remaining in the sewage are first separated, and then the soluble calcium ions in the sewage are slowly exchanged to prevent them from becoming insoluble calcium salt precipitates; at the same time, in the process of adjusting the pH value of the sewage, the unreacted carbon dioxide gas overflows from the sewage and moves upward, and the resin exchange membrane 5 is backwashed from bottom to top, which can effectively prevent the surface of the resin exchange membrane 5 from being blocked and contaminated, maintain its exchange performance, extend the service life of the resin exchange membrane 5, and reduce the frequency of manual cleaning or replacement of the membrane. At the same time, through the cooperation between the floating mechanism 9 and the air intake mechanism 3, the automatic introduction and closing of the introduced gas are realized through the changes in the sewage water surface.

[0039] Embodiment 2: Based on Embodiment 1, this embodiment realizes the effect of automatically controlling the on and off of the input carbon dioxide by utilizing the change of sewage water level.

[0040] See also Figure 3-4 A feed port 11 is symmetrically fixedly connected to the upper end of the separation cylinder 1, a circular hole 12 is opened in the middle of the upper end of the separation cylinder 1, a circular groove 13 is opened in the middle of the inner surface of the separation cylinder 1, a circular groove 2 14 is opened in the middle of the inner surface of the separation cylinder 1 below the circular groove 13, and an inclined groove 16 is symmetrically opened on the inner surface of the separation cylinder 1 between the circular groove 13 and the circular groove 2 14. The inner surface of the inclined groove 16 is symmetrically rotatably connected with a baffle 17, and the two baffles 17 are fixedly connected with a spring 18 on the side away from each other, and a water outlet 15 is opened in the middle of the bottom wall of the inner surface of the separation cylinder 1.

[0041] After the sand and gravel separation, the sewage enters the inner surface of the separation cylinder 1 from the two feed ports 11 respectively. After the sewage is treated and separated through the cooperation between various structures, the sewage flows out from the outlet 15. During the treatment process, the inner surface of the outlet 15 is in a sealed state.

[0042] See also Figure 2 The transmission mechanism 2 includes a motor 21 fixedly connected to the upper end of the separation cylinder 1, a roller 22 is fixedly connected to the output end of the motor 21, and the upper middle portion of the outer surface of the roller 22 is rotatably connected to the inner surface of the circular hole 12.

[0043] When the sewage is quantitatively separated, the motor 21 is excited so that the output end of the motor 21 drives the roller 22 to run. The roller 22 extends to the inner surface of the separation cylinder 1 and cooperates with various structures to process the sewage.

[0044] See also Figure 5 The centrifugal mechanism 4 includes a conical centrifugal cylinder 42 fixedly connected to the middle and upper part of the outer surface of the roller 22, and a guide cylinder 41 is fixedly connected to the middle and upper part of the inner surface of the separation cylinder 1, and the upper end of the guide cylinder 41 is flush with the upper end of the conical centrifugal cylinder 42.

[0045] Furthermore, after the separation of the sand and gravel, the quantitative sewage passes through the two separation cylinders 1 and enters the upper part of the inner surface of the separation cylinder 1, and all falls on the inner surface of the conical centrifugal cylinder 42, and then the motor 21 is excited, and then the output end of the motor 21 drives the roller 22 to rotate continuously, and drives the conical centrifugal cylinder 42 to rotate during the rotation of the roller 22. At the same time, the side wall of the conical centrifugal cylinder 42 is a filter membrane that can pass water molecules but cannot pass fine sand particles. During the rotation of the conical centrifugal cylinder 42 driven by the roller 22, due to the centrifugal force, water molecules and the like fly out from the side wall of the conical centrifugal cylinder 42, while the fine sand particles remain on the bottom wall of the inner surface of the conical centrifugal cylinder 42. After the sewage treatment is completely completed, the conical centrifugal cylinder 42 is removed, and the fine sand particles inside the conical centrifugal cylinder 42 are taken out and reused;

[0046] In the process of treating sewage, sewage flying out from the side wall of the conical centrifugal cylinder 42 falls into the upper end of the resin exchange membrane 5 through the guidance of the inner surface of the guide cylinder 41, avoiding the exchange of soluble calcium ions in the sewage through the cooperation of the resin exchange membrane 5.

[0047] See also Figure 6 The filtering mechanism 6 includes a filter plate 1 61 fixedly connected to the middle of the outer surface of the roller 22, a filter plate 2 62 is arranged on the outer surface of the roller 22, and a slider 621 is symmetrically fixedly connected to the outer surface of the filter plate 2 62.

[0048] The sewage exchanged through the resin exchange membrane 5 slowly falls on the upper end of the filter plate 1 61. During the rotation of the roller 22, the filter plate 2 62 can be driven to rotate along with the roller 22, and can also slide up and down along the surface of the roller 22. When the output end of the motor 21 rotates forward to drive the roller 22 to rotate forward, the lower end of the filter plate 1 61 is tightly attached to the upper end of the filter plate 2 62. Through the setting of the filter holes of the filter plate 1 61 and the filter plate 2 62, the filter plate 1 61 and the filter plate 2 62 cooperate with each other to form a sealing mechanism during the rotation of the filter plate 1 61 driven by the roller 22. The sewage passing through the resin exchange membrane 5 falls on the upper end of the filter plate 1 61 and will not continue to fall, but will gradually gather at the upper end of the filter plate 1 61.

[0049] Similarly, when the filter plate 2 62 is driven by the roller 22 to rotate, the two sliders 621 continuously slide along the inner surface of the circular groove 13 .

[0050] See also Figure 7 and Fig. 9 The floating mechanism 9 includes a fixed plate 91 fixedly connected to the side wall of the inner surface of the separation cylinder 1, and a vertical plate 92 is symmetrically fixedly connected to the upper end of the fixed plate 91. The two vertical plates 92 are close to each other and are connected to a rotating plate 93 for common rotation. The upper end of the rotating plate 93 is fixedly connected to a floating ball 94 on the side away from the air guide pipe 36, and the lower end of the rotating plate 93 is fixedly connected to a circular plate 931 on the side close to the air guide pipe 36.

[0051] When the roller 22 rotates forward and the filter plate 1 61 and the filter plate 2 62 cooperate to form a seal, a certain amount of sewage passes through the resin exchange membrane 5 and falls on the upper end of the filter plate 1 61. As the sewage surface gradually rises, the buoyancy of the float 94 gradually increases, and then drives the end of the rotating plate 93 away from the air guide pipe 36 to move upward. Through the cooperation of the two vertical plates 92, the end of the rotating plate 93 close to the air guide pipe 36 rotates downward;

[0052] See also Fig. 9 A sealing cylinder 96 is fixedly connected to the upper end of the air guide tube 36, a fixing ring three 99 is fixedly connected to the middle and upper part of the inner surface of the air guide tube 36, a spring two 98 is fixedly connected to the upper end of the fixing ring three 99, a circular ring two 981 is fixedly connected to the upper end of the spring two 98, a push rod 95 is slidably connected to the top wall of the inner surface of the sealing cylinder 96, a sealing roller 97 is fixedly connected to the lower end of the push rod 95, the upper end of the push rod 95 is tightly attached to the lower end of the circular plate 931, and the middle part of the outer surface of the push rod 95 is fixedly connected to the inner surface of the circular ring two 981.

[0053] When one end of the rotating plate 93 rotates downward, the circular plate 931 presses the push rod 95 downward and further pushes the sealing roller 97 downward. When the sealing roller 97 is not pushed, the sealing roller 97 seals the internal channel of the air guide tube 36 through the cooperation of the spring 2 98 and the fixing ring 3 99.

[0054] When the push rod 95 is pressed downward by the circular plate 931, the push rod 95 slides downward along the inner surface of the sealing cylinder 96, and the push rod 95 drives the second ring 981 to descend. At this time, the second spring 98 is compressed, and the sealing roller 97 is pushed downward by the push rod 95, and the gas channel inside the air guide tube 36 is gradually connected;

[0055] When the sewage entering the inner surface of the separation cylinder 1 through the feed port 11 falls on the upper end of the filter plate 61 after centrifugation in the conical centrifugal cylinder 42 and exchange with the resin exchange membrane 5, the water level on the upper end of the filter plate 61 reaches a predetermined value. At this time, the buoyancy of the sewage on the float 94 is the largest, that is, the float 94 drives the rotating plate 93 to rotate to the maximum angle during the floating and rising process. At this time, the circular plate 931 presses the push rod 95 and the sealing roller 97 downward and drops to the lowest point. At this time, the internal gas channel of the air guide tube 36 is in a connected state, and the external carbon dioxide gas can pass through.

[0056] See also Figure 7-8 The air intake mechanism 3 includes a ventilation pipe 31 fixedly connected to the side wall of the inner surface of the separation cylinder 1, one end of the ventilation pipe 31 is fixedly connected to the air guide pipe 36, a Y-shaped pipe 32 is fixedly connected to the side of the air guide pipe 36 away from the ventilation pipe 31, and two hard tubes 1 33 are fixedly connected to the side of the Y-shaped pipe 32 away from the air guide pipe 36. Hard tubes 2 34 are arranged on the upper part of the inner surface of the two hard tubes 1 33, and three L-shaped nozzles 35 are arranged in a circular array on the upper ends of the two hard tubes 2 34.

[0057] The end of the ventilation tube 31 in the above-mentioned structure away from the air guide tube 36 is connected to the external carbon dioxide gas outlet. When the push rod 95 drives the sealing roller 97 to be pushed downward to the lowest point, the interior of the air guide tube 36 is connected, and then the external carbon dioxide gas enters the air guide tube 36 through the ventilation tube 31 at a certain speed and then enters the Y-shaped tube 32 and the two hard tubes 33.

[0058] The gas entering the hard tube 1 33 will pass through the matching hard tube 2 34 and then be ejected from the L-shaped nozzle 35 .

[0059] The vertical part of the L-shaped nozzle 35 is at an angle of 120 degrees to the horizontal part. The three L-shaped nozzles 35 are arranged on the upper end of each hard pipe 2 34. When carbon dioxide gas is ejected from the vertical part of the L-shaped nozzle 35 at a certain speed, the gas ejection has a certain reaction force on the nozzle of the L-shaped nozzle 35. At the same time, the three L-shaped nozzles 35 cooperate with each other, so that the three L-shaped nozzles 35 drive the hard pipe 2 34 to rotate continuously under the action of the reaction force of the gas. At this time, the reaction force of the gas on the nozzle of the L-shaped nozzle 35 is greater than the resistance of the sewage to the L-shaped nozzle 35;

[0060] After the carbon dioxide gas is sprayed out through the L-shaped nozzle 35, the three L-shaped nozzles 35 cooperate with each other in rotation, which produces a stirring effect on the sewage. On the one hand, it accelerates the mixing of the carbon dioxide gas and the sewage, and on the other hand, it facilitates the mixing of the reacted sewage and the unreacted sewage, thereby improving the efficiency of adjusting the pH of the sewage.

[0061] At the same time, the carbon dioxide gas that has not had time to react overflows from the sewage and gradually rises. The rising carbon dioxide gas will pass through the lower end of the resin exchange membrane 5 and enter the interior of the resin exchange membrane 5 to backwash the resin exchange membrane 5. At the same time, the carbon dioxide gas can react with the calcium ions adsorbed inside the resin exchange membrane 5 to generate calcium carbonate, which can promote the resin exchange membrane 5 to recover some of its exchange capacity.

[0062] See also Figure 8 The upper end of the hard tube 1 33 is fixedly connected with a stopper 331, the lower end of the hard tube 2 34 is fixedly connected with a ring 1 341, the lower end of the stopper 331 is slidably connected to the upper end of the ring 1 341, and a sealing ring 342 is fixedly connected to the outer surface of the hard tube 2 34 at the upper end of the stopper 331.

[0063] When the gas enters the inside of the hard tube 2 34 through the hard tube 1 33, the three L-shaped nozzles 35 cooperate to drive the hard tube 2 34 to rotate. At this time, the hard tube 2 34 drives the circular ring 1 341 and the sealing ring 342 to rotate at the same time. Through the cooperation of the stopper 331 and the circular ring 1 341, the stopper 331 limits the circular ring 1 341 during the rotation of the hard tube 2 34. At the same time, through the cooperation of the sealing ring 342, the sewage will not enter the inside of the hard tube 1 33 through the gap between the stopper 331 and the circular ring 1 341. Similarly, the carbon dioxide gas inside the hard tube 1 33 will not overflow through the gap.

[0064] After a certain amount of carbon dioxide gas is introduced to react with the sewage, the output end of the motor 21 is reversed, thereby causing the roller 22 to reverse, and then the roller 22 drives the filter plate 1 61 and the filter plate 2 62 to rotate in the same direction;

[0065] When the roller 22 drives the filter plate 2 62 to reverse, due to the obstruction of the baffle 17 on the inner surface of the circular groove 13, the two sliders 621 slide down along the inner surface of the matching inclined groove 16 to the inner surface of the circular groove 2 14 respectively. At this time, the filter plate 2 62 and the filter plate 1 61 are no longer tightly attached, and then the sewage on the upper end of the filter plate 1 61 after PH adjustment slowly falls.

[0066] When the roller 22 drives the filter plate 2 62 to reverse, the two sliders 621 slide along the inner surface of the circular groove 2 14. When the slider 621 slides to the side close to the fixed connection between the baffle 17 and the spring 18, the slider 621 continues to slide, pushing the baffle 17 upward, so that the baffle 17 rotates upward along the axis connected to the inner surface of the inclined groove 16, and the spring 18 is stretched at the same time. When the slider 621 rotates to disengage from the lower end of the baffle 17, the stretched spring 18 returns to its original state, so that the baffle 17 is reset. When the roller 22 drives the filter plate 2 62 to continue to reverse, the slider 621 repeats the above operation when passing the lower end of the baffle 17 located on the inner surface of the circular groove 14.

[0067] When the roller 22 drives the filter plate 2 62 to rotate forward, so that the filter plate 1 61 and the filter plate 2 62 form a seal, the two sliders 621 enter the inner surface of the matching inclined groove 16 along the upper end of the baffle 17 located on the inner surface of the circular groove 2 14 and then enter the inner surface of the circular groove 1 13, and then continue to slide on the inner surface of the circular groove 13.

[0068] Similarly, during the sliding process on the inner surface of the circular groove 13, when passing the upper end of the baffle 17 located on the inner surface of the circular groove 13, the slider 621 will press the baffle 17 downward and stretch the spring 18 at the same time. When the slider 621 rotates until it no longer contacts the baffle 17, the spring 18 drives the baffle 17 to reset, so that the roller 22 can drive the filter plate 2 62 to rotate continuously, so that the filter plate 1 61 and the filter plate 2 62 can be tightly attached to form a sealing state, or can be separated to allow the regulated sewage to fall.

[0069] When filter plate 1 61 and filter plate 2 62 are separated and no longer tightly attached, the sewage falls and the water level drops. At this time, the float 94 is no longer subject to a large buoyancy, and the compressed spring 2 98 pushes the ring 2 981 upward, thereby driving the push rod 95 and the sealing roller 97 to gradually return to their original position, thereby sealing the internal channel of the air guide tube 36 again.

[0070] See also Fig.10 The separation mechanism 8 includes a one-way rotating shaft 87 fixedly connected to the middle and lower part of the outer surface of the roller 22, a fixing ring 86 is fixedly connected to the outer surface of the one-way rotating shaft 87, a guide ring 81 is fixedly connected to the outer surface of the fixing ring 86, a filter ring 82 is fixedly connected to the lower end of the guide ring 81, a U-shaped cylinder 83 is fixedly connected to the lower end of the filter ring 82, a one-way rotating shaft 88 is fixedly connected to the lower part of the outer surface of the roller 22, a fixing ring 84 is fixedly connected to the outer surface of the one-way rotating shaft 88, a plurality of empty tubes 85 are arranged in an annular array on the outer surface of the fixing ring 84, and the outer surface of the guide ring 81 is slidably connected to the inner surface of the separation cylinder 1.

[0071] The one-way shaft 1 87 and the one-way shaft 2 88 mentioned above are both commonly used technical means in the prior art. When the roller 22 is driven to rotate forward, the one-way shaft 2 88 can drive the fixed ring 1 84 to rotate, while the fixed ring 2 86 does not rotate due to the one-way shaft 1 87. Similarly, when the roller 22 is driven to rotate reversely, the one-way shaft 1 87 drives the fixed ring 2 86 to rotate, while the one-way shaft 2 88 cooperates with the fixed ring 1 84 to stop operating.

[0072] The conditioned sewage falls into the U-shaped cylinder 83, and the roller 22 rotates forward, driving the fixed ring 1 84 and a plurality of empty tubes 85 to rotate continuously through the cooperation of the one-way rotating shaft 2 88. At the same time, the empty tubes 85 are filled with flocculants commonly used in the prior art for settling cement colloids and other greases, and the reaction between the sewage and the flocculants is accelerated by continuous stirring through the cooperation of the empty tubes 85.

[0073] Furthermore, after stirring for a period of time, the operation of the roller 22 is suspended to allow the floccules after the reaction of the flocculant to settle out, and then the roller 22 can be reversed, and the fixed ring 84 can be driven to rotate through the one-way rotating shaft 87. Then the fixed ring 84 drives the guide ring 81, the filter ring 82 and the U-shaped cylinder 83 to rotate continuously. Through the centrifugal effect, water flies out from the side wall of the filter ring 82, and the floccules are precipitated and remain in the U-shaped cylinder 83.

[0074] The water flying out of the filter ring 82 falls on the upper end of the ultrafiltration membrane 7, and is discharged through the water outlet 15 after being adsorbed by the ultrafiltration membrane 7. Then, the treated sewage can be subjected to the next step of testing.

[0075] Therefore, in this scheme, the float 94 cooperates with the rising sewage water level. When the sewage water level reaches the set value, the float 94 and the like cooperate to release the seal lock of the sealing roller 97 on the inside of the air duct 36, so that the carbon dioxide gas is automatically introduced through the air duct 31 and the like to adjust the pH of the sewage. At the same time, through the coordinated arrangement of the three L-shaped nozzles 35, during the process of the carbon dioxide gas introduction, the reaction force of the gas spray is used to realize the continuous rotation of the three L-shaped nozzles 35, which can not only accelerate the reaction of the carbon dioxide gas and the sewage to adjust the pH, but also evenly mix the reacted sewage and the unreacted sewage. Similarly, by using the cooperation of the filter plate 1 61 and the filter plate 2 62, the filter plate 1 61 and the filter plate 2 62 can be made to be close to each other to achieve the sealing of the sewage, and the filter plate 1 61 and the filter plate 2 62 can be separated to achieve the re-sealing of the air duct 36.

[0076] It should be noted that the specific installation method of the motor 21, the circuit connection method and the control method used in the present invention are all conventional designs and will not be elaborated in detail in the present invention.

[0077] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A separation device for sewage treatment, comprising a separation cylinder (1), characterized in that: A transmission mechanism (2) is fixedly connected to the middle of the upper end of the separation cylinder (1); a centrifugal mechanism (4) is fixedly connected to the middle and upper part of the inner surface of the separation cylinder (1); a resin exchange membrane (5) is fixedly connected to the middle and upper part of the inner surface of the separation cylinder (1); a filtering mechanism (6) is slidably connected to the middle of the inner surface of the separation cylinder (1); an air intake mechanism (3) is arranged on the upper part of the filtering mechanism (6); a floating mechanism (9) is fixedly connected to the middle of the inner surface of the separation cylinder (1); a separation mechanism (8) is arranged on the lower part of the transmission mechanism (2); and an ultrafiltration membrane (7) is fixedly connected to the lower part of the inner surface of the separation cylinder (1).

2. A separation device for sewage treatment according to claim 1, characterized in that: The upper end of the separation cylinder (1) is symmetrically fixedly connected with a feed port (11), the middle of the upper end of the separation cylinder (1) is provided with a circular hole (12), the middle of the inner surface of the separation cylinder (1) is provided with a circular groove (13), the middle of the inner surface of the separation cylinder (1) is provided with a circular groove (14), the inner surface of the separation cylinder (1) is symmetrically provided with an inclined groove (16) between the circular groove (13) and the circular groove (14), the inner surface of the inclined groove (16) is symmetrically rotatably connected with a baffle (17), the two baffles (17) are fixedly connected with a spring (18) on the side away from each other, and the middle of the bottom wall of the inner surface of the separation cylinder (1) is provided with a water outlet (15).

3. A separation device for sewage treatment according to claim 2, characterized in that: The transmission mechanism (2) comprises a motor (21) fixedly connected to the upper end of the separation cylinder (1), the output end of the motor (21) being fixedly connected to a roller (22), and the upper middle portion of the outer surface of the roller (22) being rotatably connected to the inner surface of the circular hole (12).

4. A separation device for sewage treatment according to claim 3, characterized in that: The centrifugal mechanism (4) comprises a conical centrifugal cylinder (42) fixedly connected to the middle and upper part of the outer surface of the roller (22); a guide cylinder (41) is fixedly connected to the middle and upper part of the inner surface of the separation cylinder (1); the upper end of the guide cylinder (41) is flush with the upper end of the conical centrifugal cylinder (42).

5. A separation device for sewage treatment according to claim 3, characterized in that: The filtering mechanism (6) comprises a first filter plate (61) fixedly connected to the middle of the outer surface of the roller (22), a second filter plate (62) is arranged on the outer surface of the roller (22), and a slider (621) is symmetrically fixedly connected to the outer surface of the second filter plate (62).

6. A separation device for sewage treatment according to claim 1, characterized in that: The air intake mechanism (3) comprises a ventilation pipe (31) fixedly connected to the side wall of the inner surface of the separation cylinder (1); one end of the ventilation pipe (31) is fixedly connected to an air guide pipe (36); a side of the air guide pipe (36) away from the ventilation pipe (31) is fixedly connected to a Y-shaped pipe (32); a side of the Y-shaped pipe (32) away from the air guide pipe (36) is fixedly connected to two hard tubes (33); a hard tube (34) is provided on the upper part of the inner surface of the two hard tubes (33); and the upper ends of the two hard tubes (34) are provided with three L-shaped nozzles (35) in a circular array.

7. A separation device for sewage treatment according to claim 6, characterized in that: The upper end of the hard tube 1 (33) is fixedly connected to a stopper (331), the lower end of the hard tube 2 (34) is fixedly connected to a circular ring 1 (341), the lower end of the stopper (331) is slidably connected to the upper end of the circular ring 1 (341), and a sealing ring (342) is fixedly connected to the outer surface of the hard tube 2 (34) located at the upper end of the stopper (331).

8. A separation device for sewage treatment according to claim 6, characterized in that: The floating mechanism (9) comprises a fixed plate (91) fixedly connected to the side wall of the inner surface of the separation cylinder (1); the upper end of the fixed plate (91) is symmetrically fixedly connected to a vertical plate (92); two vertical plates (92) are connected to a rotating plate (93) on one side close to each other and rotate together; a floating ball (94) is fixedly connected to the side of the upper end of the rotating plate (93) away from the air guide pipe (36); and a circular plate (931) is fixedly connected to the side of the lower end of the rotating plate (93) close to the air guide pipe (36).

9. A separation device for sewage treatment according to claim 8, characterized in that: The upper end of the air guide tube (36) is fixedly connected to a sealing cylinder (96); the middle and upper part of the inner surface of the air guide tube (36) is fixedly connected to a fixing ring three (99); the upper end of the fixing ring three (99) is fixedly connected to a spring two (98); the upper end of the spring two (98) is fixedly connected to a circular ring two (981); the top wall of the inner surface of the sealing cylinder (96) is slidably connected to a push rod (95); the lower end of the push rod (95) is fixedly connected to a sealing roller (97); the upper end of the push rod (95) is tightly attached to the lower end of the circular plate (931); and the middle part of the outer surface of the push rod (95) is fixedly connected to the inner surface of the circular ring two (981).

10. A separation device for sewage treatment according to claim 5, characterized in that: The separation mechanism (8) comprises a one-way rotating shaft (87) fixedly connected to the middle and lower part of the outer surface of the roller (22); a fixing ring (86) is fixedly connected to the outer surface of the one-way rotating shaft (87); a guide ring (81) is fixedly connected to the outer surface of the fixing ring (86); a filter ring (82) is fixedly connected to the lower end of the guide ring (81); a U-shaped cylinder (83) is fixedly connected to the lower end of the filter ring (82); a one-way rotating shaft (88) is fixedly connected to the lower part of the outer surface of the roller (22); a fixing ring (84) is fixedly connected to the outer surface of the one-way rotating shaft (88); a plurality of hollow tubes (85) are arranged in an annular array on the outer surface of the fixing ring (84); and the outer surface of the guide ring (81) is slidably connected to the inner surface of the separation cylinder (1).

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