A three-phase separator for easy sewage discharge

Abstract

The present invention discloses a three-phase separator that is convenient for sewage discharge, and relates to the technical field of sewage treatment, comprising an outer shell, an inner cylinder is arranged inside the outer shell, an upper conical cylinder and a lower conical cylinder are arranged at the top and bottom of the inner cylinder respectively, a dehydration cylinder is fixedly connected to the bottom of the lower conical cylinder, a sleeve is arranged at the bottom of the outer shell, the dehydration cylinder is located inside the sleeve, and the bottom of the dehydration cylinder penetrates the bottom wall of the sleeve, and a partition is arranged between the outer wall of the dehydration cylinder and the inner wall of the sleeve. During the use of the present invention, it has the function of automatically collecting and dehydrating precipitated impurities, and has high practicality; during the sewage treatment process of the present invention, the inclined blades rotate continuously and disperse the precipitated impurities, thereby preventing the impurities from accumulating in one place and causing the dehydration cylinder feed to be blocked; and during the sewage treatment process, the annular capsule continuously expands and contracts slightly, so that the feed area of ​​the dehydration cylinder continuously changes slightly, further preventing the dehydration cylinder feed from being blocked.

Description

Technical Field

[0001] The present invention relates to the technical field of sewage treatment, in particular to a three-phase separator which is convenient for sewage discharge. Background Art

[0002] The three-phase separator is a commonly used device in sewage treatment. Its main function is to effectively separate the solid, liquid and gas phases in sewage to achieve the purpose of purifying water quality. This equipment is widely used in industrial wastewater treatment, domestic sewage treatment and agricultural wastewater treatment.

[0003] The three-phase separator with Chinese patent announcement number CN214141820U includes a tank body, a gas separation unit, a solid-liquid separation unit and a solid return unit. The gas separation unit is arranged at the upper end of the tank body, and a sewage injection pipe is arranged at the upper end of the tank body. The gas separation unit includes a partition arranged inside the tank body, and the partitions are stacked in sequence from top to bottom. An exhaust duct passes through the top of the tank body, and a fog collecting head is arranged on the exhaust duct. The solid-liquid separation unit is arranged at the lower end of the tank body, and the solid-liquid separation unit includes a separation plate, a solid discharge chamber, and a water outlet chamber. The beneficial effects of the utility model are: the sewage reverses the flow from top to bottom, and the gas will float upward, the fog collecting head absorbs the gas, and the solid-liquid mixture will flow into the water outlet chamber from the inclined tube. Due to its large density, the solid will fall back to the solid discharge chamber under the action of gravity. The separation capacity and separation efficiency are improved compared with the traditional three-phase separator, the probability of clogging is small, and the stability is high.

[0004] When in use, the device does not have the function of dehydrating discharged solids. The water content in the discharged solids is relatively large, that is, the volume and weight of the solids are large, resulting in a heavy workload for workers in transporting and handling the solids. In addition, when solids with a large water content are transported, the liquid in the solids can easily drip into the outside and cause environmental pollution. Summary of the invention

[0005] Therefore, the technical problem to be solved by the present invention is to provide a three-phase separator with a dehydration function and convenient for sewage discharge.

[0006] In order to solve the above technical problems, the present invention provides the following technical solutions: a three-phase separator that is convenient for sewage discharge, comprising an outer shell, an inner cylinder is arranged in the outer shell, an upper conical cylinder and a lower conical cylinder are arranged at the top and bottom of the inner cylinder respectively, a dehydration cylinder is fixedly connected to the bottom of the lower conical cylinder, a sleeve is arranged at the bottom of the outer shell, the dehydration cylinder is located inside the sleeve and the bottom of the dehydration cylinder passes through the bottom wall of the sleeve, a partition is arranged between the outer wall of the dehydration cylinder and the inner wall of the sleeve, the partition divides the space between the dehydration cylinder and the sleeve into an upper chamber and a lower chamber, the The dehydration cylinder is provided with a filter hole matching the lower chamber; a first rotating shaft is coaxially provided inside the dehydration cylinder, a spiral blade is provided on the first rotating shaft, an annular block is slidably passed through the first rotating shaft, the annular block is located below the spiral blade, and the outer surface of the annular block is slidably sealed with the inner wall of the dehydration cylinder; it also includes a support plate arranged on the outer shell, a first spring is installed between the bottom of the annular block and the top of the support plate, a slag discharge pipe is provided on the dehydration cylinder located below the sleeve, and the outer surface of the annular block blocks the input end of the slag discharge pipe;

[0007] A connecting groove matching the upper chamber is provided on the side wall of the dehydration cylinder, and a closing plate mechanism is hinged on the inner wall of the connecting groove. A first annular plate is fixedly connected to the top of the inner wall of the dehydration cylinder, and a second annular plate is slidably matched with the bottom of the first annular plate. When the second annular plate abuts against the closing plate mechanism, the closing plate mechanism closes the connecting groove; it also includes an annular capsule, and the inner wall of the first annular plate and the inner wall of the second annular plate are fixedly connected to the two ends of the annular capsule respectively; it also includes a dispersion wheel mechanism, and the power input end of the dispersion wheel mechanism is drivingly connected to the top end of the first rotating shaft, and the dispersion wheel mechanism is drivingly matched with the second annular plate.

[0008] The above-mentioned three-phase separator is easy to discharge sewage, and the outer shell includes an outer cylinder, an upper head and a lower head. The outer cylinder is coaxially sleeved on the inner cylinder, and a support block is provided between the outer surface of the inner cylinder and the inner wall of the outer cylinder. The upper head and the lower head are respectively detachably connected to the top and bottom ends of the outer cylinder, and the bottom end of the lower head is fluidically connected to the top end of the sleeve; a support leg is fixedly connected to the lower head, and the support plate is fixedly connected to the support leg.

[0009] In the above-mentioned three-phase separator which is convenient for sewage discharge, a motor is installed at the bottom of the support plate, and the input end of the motor passes through the support plate and is coaxially fixedly connected with the bottom end of the first rotating shaft.

[0010] The above-mentioned three-phase separator is easy to discharge sewage, and a feed valve and a first drain valve are provided on the outer cylinder. The output end of the feed valve and the input end of the first drain valve both penetrate into the interior of the inner cylinder, and the height position of the feed valve is lower than the height position of the first drain valve. A filter cover matching the first drain valve is provided on the inner wall of the inner cylinder.

[0011] The above-mentioned three-phase separator that is easy to discharge sewage has a second drain valve on the sleeve, and the input end of the second drain valve is connected to the fluid of the lower chamber; the upper head is provided with an exhaust valve, and a demister matching the exhaust valve is installed in the upper head.

[0012] The above-mentioned three-phase separator is easy to discharge sewage, and the closing plate mechanism includes a hinge block and a closing plate. The hinge block is fixed on the inner wall of the connecting groove, and a hinge column is provided on the closing plate. The hinge column is rotatably connected to the hinge block, and a torsion spring is sleeved on the hinge column between the hinge block and the closing plate.

[0013] The above-mentioned three-phase separator that is convenient for sewage discharge is provided with a slide groove on the second annular plate, and a plug plate is provided at the bottom of the first annular plate. The bottom of the plug plate is inserted into the interior of the slide groove and the outer surface of the plug plate is slidably matched with the inner wall of the slide groove. A second spring is installed between the first annular plate and the second annular plate; a connecting rod is fixedly connected to the second annular plate, and the connecting rod passes through the first annular plate and a toggle block is provided at the top of the connecting rod.

[0014] The above-mentioned three-phase separator that is easy to discharge sewage, the dispersion wheel mechanism includes a second rotating shaft, a reducer is provided at the top of the first rotating shaft, and the output end of the reducer is drivingly connected to the second rotating shaft; a dispersion wheel is coaxially fixedly connected to the second rotating shaft, the top of the dispersion wheel is provided with a conical surface, and the conical surface is provided with inclined blades, the inclined blades are matched with the toggle block, and when the dispersion wheel rotates to make the inclined blades hit the toggle block, the connecting rod pulls the second annular plate to rise.

[0015] The above-mentioned three-phase separator that is easy to discharge sewage, has a bracket fixedly connected to the second rotating shaft above the dispersion wheel, a scraper rod is provided on the bracket, one side of the scraper rod is in contact with the inner wall of the lower conical cylinder, and an electric spring device is installed between the dispersion wheel and the bracket.

[0016] In the above-mentioned three-phase separator which is convenient for sewage discharge, a scum detection device is installed on the upper conical cylinder, and the scum detection device is electrically connected to the electric spring device.

[0017] The technical solution of the present invention achieves the following beneficial technical effects:

[0018] 1. During the use of the present invention, it has the function of automatically collecting and dehydrating precipitated impurities, and is highly practical. During the sewage treatment process of the present invention, the inclined blades continuously rotate and disperse the precipitated impurities, thereby preventing the impurities from accumulating in one place and causing blockage at the feed of the dehydration cylinder. In addition, during the sewage treatment process, the annular bag continuously expands and contracts slightly, so that the feed area of ​​the dehydration cylinder continuously changes slightly, further preventing blockage at the feed of the dehydration cylinder.

[0019] 2. During the operation of the present invention, when the scum detection device detects that the amount of scum is too much, the second annular plate automatically rises and no longer presses against the closing plate. The closing plate automatically rotates to open the connecting groove. At the same time, the annular bag automatically expands to reduce the feed amount of the dehydration cylinder, thereby causing the water level in the inner cylinder to rise, so that the scum is discharged into the dehydration cylinder, preventing the excessive scum from affecting the operation of the present invention. The present invention has the function of automatically collecting and dehydrating the scum, which further improves the practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 A schematic diagram of the structure of the present invention;

[0021] Figure 2 A schematic cross-sectional view of the present invention;

[0022] Figure 3 A schematic cross-sectional view of the sleeve of the present invention;

[0023] Figure 4 A schematic cross-sectional view of the dehydration cylinder of the present invention;

[0024] Figure 5 A schematic cross-sectional structural diagram of the first annular plate of the present invention;

[0025] Figure 6 The present invention Figure 3 A schematic diagram of the structure with a partial enlargement at the center;

[0026] Figure 7 A schematic structural diagram of a closing plate of the present invention;

[0027] Figure 8 The present invention Figure 4 Schematic diagram of the structure with a partial enlargement at point B in the middle.

[0028] The reference numerals in the figure are as follows: 1, outer cylinder; 2, inner cylinder; 3, upper conical cylinder; 4, lower conical cylinder; 5, dehydration cylinder; 6, sleeve; 7, partition; 8, upper chamber; 9, lower chamber; 10, filter hole; 11, first rotating shaft; 12, spiral blade; 13, annular block; 14, support plate; 15, first spring; 16, slag discharge pipe; 17, connecting groove; 18, first annular plate; 19, second annular plate; 20, annular capsule; 21, slag detection device; 22, upper head; 23, lower head; 24. Support leg; 25. Motor; 26. Feed valve; 27. First drain valve; 28. Filter cover; 29. ​​Second drain valve; 30. Slide; 31. Insert plate; 32. Link rod; 33. Toggle block; 34. Articulated block; 35. Closing plate; 36. Articulated column; 37. Torsion spring; 38. Dispersion wheel; 39. Inclined blades; 40. Second rotating shaft; 41. Reducer; 42. Bracket; 43. Scraper rod; 44. Electric spring device; 45. Second spring; 46. Exhaust valve; 47. Defogger. DETAILED DESCRIPTION

[0029] 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.

[0030] First embodiment:

[0031] See also Figure 1 and Figure 2 , a technical solution is provided: a three-phase separator for easy sewage discharge, comprising an outer shell, an inner cylinder 2 is arranged in the outer shell, the outer shell comprises an outer cylinder 1, an upper head 22 and a lower head 23, the outer cylinder 1 is coaxially sleeved on the inner cylinder 2, and a support block is arranged between the outer surface of the inner cylinder 2 and the inner wall of the outer cylinder 1, the upper head 22 and the lower head 23 are respectively detachably connected to the top and bottom ends of the outer cylinder 1, in this embodiment, the upper head 22 and the lower head 23 are connected to the outer cylinder 1 through a flange, so that it is detachable, which is convenient for the staff to maintain the device later; the double-layer setting of the outer cylinder 1 and the inner cylinder 2 can reduce the possibility of sewage leakage of the device, and because there is a gap between the outer cylinder 1 and the inner cylinder 2, the device has a higher thermal insulation effect, which can reduce the influence of the external environment (such as scorching sun or extremely cold weather) on sewage treatment.

[0032] like Figure 1-Figure 3 As shown, an upper conical cylinder 3 and a lower conical cylinder 4 are respectively provided at the top and the bottom of the inner cylinder 2, a feed valve 26 and a first drain valve 27 are provided on the outer cylinder 1, the output end of the first drain valve 27 is connected to an external drainage pipe, the output end of the feed valve 26 and the input end of the first drain valve 27 both penetrate into the interior of the inner cylinder 2, the input end of the feed valve 26 is connected to an external sewage conveying device, and the height position of the feed valve 26 is lower than the height position of the first drain valve 27, a filter cover 28 matching the first drain valve 27 is provided on the inner wall of the inner cylinder 2, and a dehydration cylinder 5 is fixedly connected to the bottom of the lower conical cylinder 4; the external sewage conveying device injects sewage into the interior of the inner cylinder 2 through the feed valve 26, and then separates the water body from impurities through sedimentation, the water body is filtered by the filter cover 28 and discharged from the first drain valve 27, the impurities fall on the lower conical cylinder 4 and converge toward the center along the upper surface of the lower conical cylinder 4, and finally flow into the dehydration cylinder 5.

[0033] It should be noted that since the height position of the feed valve 26 is lower than the height position of the first drain valve 27, there are fewer impurities in the water flowing to the first drain valve 27, which can effectively reduce the possibility of clogging of the filter cover 28, thereby ensuring the drainage efficiency of the first drain valve 27.

[0034] like Figure 2-Figure 4As shown, a sleeve 6 is provided at the bottom of the outer shell, the dehydration cylinder 5 is located inside the sleeve 6 and the bottom of the dehydration cylinder 5 passes through the bottom wall of the sleeve 6, a partition 7 is provided between the outer wall of the dehydration cylinder 5 and the inner wall of the sleeve 6, the partition 7 divides the space between the dehydration cylinder 5 and the sleeve 6 into an upper chamber 8 and a lower chamber 9, and a filter hole 10 matching the lower chamber 9 is opened on the dehydration cylinder 5; a first rotating shaft 11 is coaxially provided in the dehydration cylinder 5, a spiral blade 12 is provided on the first rotating shaft 11, an annular block 13 slides through the first rotating shaft 11, the annular block 13 is located below the spiral blade 12, and the outer surface of the annular block 13 is slidably matched with the inner wall of the dehydration cylinder 5.

[0035] It also includes a support plate 14 arranged on the outer shell, a first spring 15 is installed between the bottom of the annular block 13 and the top of the support plate 14, and a slag discharge pipe 16 is provided on the dehydration cylinder 5 located below the sleeve 6; a support leg 24 is fixedly connected to the lower head 23, and the support plate 14 is fixedly connected to the support leg 24; a motor 25 is installed at the bottom of the support plate 14, and the input end of the motor 25 passes through the support plate 14 and is coaxially fixedly connected to the bottom end of the first rotating shaft 11; when the motor 25 drives the first rotating shaft 11 to rotate, the spiral blade 12 rotates and transports the impurities in the dehydration cylinder 5 downward.

[0036] In the initial state, the outer surface of the annular block 13 blocks the input end of the slag discharge pipe 16. The spiral blades 12 rotate to transport impurities downward. When the impurities are transported to the bottom, they accumulate on the top of the annular block 13. As the spiral blades 12 continue to transport impurities, the pressure on the impurities at the bottom gradually increases, and the water in the impurities is squeezed out and enters the lower chamber 9 through the filter holes 10 (in this embodiment, the pitch of the spiral blades 12 can be set to gradually decrease from top to bottom, that is, the transmission space gradually decreases, thereby forming a gradually increasing pressure on the material, thereby improving the dehydration effect), thereby realizing the dehydration function of the device for impurities.

[0037] like Figure 3 and Figure 4 As shown, a second drain valve 29 is provided on the sleeve 6, the output end of the second drain valve 29 is connected to the external drain pipe, the input end of the second drain valve 29 is fluidly connected to the lower chamber 9, and the water in the lower chamber 9 is discharged from the device through the second drain valve 29.

[0038] like Figure 2 As shown, an exhaust valve 46 is provided on the upper head 22, and a demister 47 matching the exhaust valve 46 is installed in the upper head 22; after the sewage enters the inner tube 2, the gas mixed in the sewage rises and passes through the upper conical tube 3 and the demister 47 in sequence, and is finally discharged from the exhaust valve 46.

[0039] like Figure 2-Figure 6As shown, the top of the inner wall of the dehydration cylinder 5 is fixedly connected with a first annular plate 18, and the bottom of the first annular plate 18 is slidably matched with a second annular plate 19; it also includes an annular bag 20, and the inner wall of the first annular plate 18 and the inner wall of the second annular plate 19 are fixedly connected to the two ends of the annular bag 20 respectively; a slide groove 30 is opened on the second annular plate 19, and a plug plate 31 is provided at the bottom of the first annular plate 18. The bottom of the plug plate 31 is inserted into the interior of the slide groove 30 and the outer surface of the plug plate 31 is slidably matched with the inner wall of the slide groove 30. Through the matching arrangement of the slide groove 30 and the plug plate 31, the second annular plate 19 can move close to or away from the first annular plate 18, thereby achieving the effect of adjusting the air pressure between the first annular plate 18 and the second annular plate 19, so as to achieve the purpose of expanding or contracting the annular bag 20; a second spring 45 is installed between the first annular plate 18 and the second annular plate 19, and a connecting rod 32 is fixedly connected to the second annular plate 19, and the connecting rod 32 passes through the first annular plate 18 and a toggle block 33 is provided at the top of the connecting rod 32.

[0040] like Figure 2 , Figure 3 and Figure 6 As shown, it also includes a dispersion wheel mechanism, the power input end of the dispersion wheel mechanism is drivingly connected to the top end of the first rotating shaft 11, and the dispersion wheel mechanism is drivingly matched with the second annular plate 19; the dispersion wheel mechanism includes a second rotating shaft 40, a reducer 41 is provided at the top end of the first rotating shaft 11, and the output end of the reducer 41 is drivingly connected to the second rotating shaft 40; a dispersion wheel 38 is coaxially fixedly connected to the second rotating shaft 40, and a conical surface is provided on the top of the dispersion wheel 38, and an inclined blade 39 is provided on the conical surface; a bracket 42 is fixedly connected to the second rotating shaft 40 above the dispersion wheel 38, and a scraper 43 is provided on the bracket 42, and one side of the scraper 43 is in contact with the inner wall of the lower conical cylinder 4; when the first rotating shaft 11 rotates, the second rotating shaft 40 can be driven to rotate slowly through the reducer 41; the inclined blade 39 matches the toggle block 33, and when the dispersion wheel 38 rotates to make the inclined blade 39 abut against the toggle block 33, the linkage rod 32 pulls the second annular plate 19 to rise.

[0041] An electric spring device 44 is installed between the dispersion wheel 38 and the bracket 42. The electric spring device 44 is a prior art, which is equivalent to an energized solenoid. Each turn of the spring is equivalent to a circular current. The current direction in each turn of the spring is the same. According to the mutual attraction between currents in the same direction, each turn of the spring attracts the adjacent springs, so the electric spring device 44 will shrink as a whole, and the amount of shrinkage of the electric spring device 44 depends on the current size. The electric spring device 44 in this embodiment has a waterproof property, and can drive the dispersion wheel 38 to rise and fall when the electric spring device 44 retracts and expands.

[0042] Working principle: At the initial stage of use of the device in this embodiment, the electric spring device 44 is in a power-off state. At this time, the electric spring device 44 is fully expanded, that is, the bottom of the dispersion wheel 38 is against the annular bag 20. At this time, the liquid in the inner tube 2 cannot flow into the dehydration tube 5, so that the inner tube 2 can quickly store water.

[0043] The device is provided with a water level detection device (such as a water level meter), which is not shown. During the feeding process, when the material in the inner drum 2 reaches a set height (the set height must be higher than the height position of the first drain valve 27), the control motor 25 is started, and the electric spring device 44 is controlled to contract (a controller can be provided in the device to control the motor 25 and the electric spring device 44. This is the prior art and will not be described in detail). The dispersion wheel 38 rises and moves away from the annular capsule 20. At this time, a feeding gap is formed between the bottom of the dispersion wheel 38 and the annular capsule 20, and the impurities in the inner drum 2 flow into the dehydration drum 5 through the feeding gap, thereby realizing the feeding of the dehydration drum 5.

[0044] After the motor 25 is started, it drives the first rotating shaft 11 to rotate, and the reducer 41 drives the second rotating shaft 40 to rotate slowly. The dispersion wheel 38 and the scraper rod 43 rotate synchronously with the second rotating shaft 40. The rotation of the scraper rod 43 can drop the impurities adhering to the lower conical cylinder 4 and accelerate the flow of impurities to the center.

[0045] It should be noted that due to factors such as uneven impurity dispersion, when there are more impurities accumulated on one side of the dispersion wheel 38, through the setting of the dispersion wheel 38 and the inclined blade 39, the inclined blade 39 can push the impurities when it rotates, thereby achieving the dispersion of the impurities, thereby avoiding the accumulation of impurities in one place and causing blockage of the feed gap at that place.

[0046] It is worth mentioning that during the rotation of the dispersion wheel 38, when the inclined blade 39 abuts against the toggle block 33, the connecting rod 32 pulls the second annular plate 19 to rise slightly, and the air pressure between the first annular plate 18 and the second annular plate 19 increases slightly, causing the annular capsule 20 to expand slightly. At the same time, the second spring 45 is slightly compressed to accumulate force. The dispersion wheel 38 continues to rotate until the toggle block 33 passes over the inclined blade 39, and the second spring 45 unfolds and abuts against the second annular plate 19 to reset, and the annular capsule 20 contracts and resets. During the continuous rotation of the dispersion wheel 38, the annular capsule 20 continuously expands and contracts slightly, so that the feeding area of ​​the dehydration cylinder 5 continues to change slightly, which can reduce the possibility of blockage at the feeding point of the dehydration cylinder 5.

[0047] It should be noted that, in the initial state, the outer surface of the annular block 13 blocks the input end of the slag discharge pipe 16, and the first rotating shaft 11 drives the spiral blade 12 to rotate to transport the impurities entering the dehydration cylinder 5 downward, and the impurities are accumulated on the top of the annular block 13. As the spiral blade 12 continues to rotate and continuously transports the impurities downward, the pressure on the impurities gradually increases, and the water in the impurities is squeezed out and enters the lower chamber 9 through the filter hole 10, thereby achieving impurity dehydration; when the pressure on the impurities increases to a level higher than the resistance force of the first spring 15 acting on the annular block 13, the annular block 13 moves downward and compresses the first spring 15. When the annular block 13 drops to the point where it no longer blocks the slag discharge pipe 16, the dehydrated impurities are discharged from the device through the slag discharge pipe 16.

[0048] Second embodiment:

[0049] See also Figure 1-8 Based on the three-phase separator provided in the first embodiment for facilitating sewage discharge, during actual use, there is often scum in the sewage, and the device in the first embodiment cannot process the scum, and the scum will gradually increase as the work progresses, thereby affecting the drainage work of the first drain valve 27 and the discharge of gas in the water.

[0050] In order to solve the above problems, Figure 1-Figure 4 , Figure 7 and Figure 8 As shown, the bottom end of the lower head 23 is fluidly connected to the top end of the sleeve 6; a connecting groove 17 matching the upper chamber 8 is provided on the side wall of the dehydration cylinder 5, and a closing plate mechanism is hinged on the inner wall of the connecting groove 17, and the closing plate mechanism closes the connecting groove 17 when the second annular plate 19 abuts against the closing plate mechanism; the closing plate mechanism includes a hinge block 34 and a closing plate 35, the hinge block 34 is fixed on the inner wall of the connecting groove 17, and a hinge column 36 is provided on the closing plate 35, and the hinge column 36 is rotatably connected to the hinge block 34, and the hinge block 34 is connected to the A torsion spring 37 is sleeved on the hinged column 36 between the closing plates 35; in the initial state, the second annular plate 19 presses against the closing plate 35, at which time the closing plate 35 is in a closed connecting groove 17 state, and the torsion spring 37 is in a force storage state. When the second annular plate 19 rises to the point where the second annular plate 19 no longer presses against the closing plate 35, the torsion spring 37 releases the force and drives the closing plate 35 to rotate toward the inside of the dehydration cylinder 5 with the hinged column 36 as the axis, and the connecting groove 17 opens. At this time, the upper chamber 8 is connected to the inside of the dehydration cylinder 5 through the connecting groove 17.

[0051] like Figure 2 and Figure 3A scum detection device 21 is installed on the upper conical cylinder 3. The scum detection device 21 is a prior art and will not be described in detail. The scum detection device 21 is electrically connected to the electric spring device 44. In this embodiment, the water level setting height is set near the top of the upper conical cylinder 3. When the scum detection device 21 detects that the amount of scum is too much, the electric spring device 44 is controlled to contract.

[0052] Working principle: When the device in this embodiment is in use, based on the sewage treatment process of the first embodiment, the closing plate 35 is in a closed communicating groove 17 state. As the work proceeds, the scum in the water gradually increases. When the scum detection device 21 detects that the amount of scum is too much, the electric spring device 44 is controlled to be completely contracted, the dispersion wheel 38 rises and pushes against the toggle block 33 to rise, the linkage rod 32 pulls the second annular plate 19 to rise, the air pressure between the first annular plate 18 and the second annular plate 19 increases and expands the annular bag 20. At this time, the feeding area of ​​the dehydration cylinder 5 is reduced to a minimum, resulting in a decrease in the feeding amount of the dehydration cylinder 5. Since the feed valve 26 continues to inject material into the inner cylinder 2, the water level in the inner cylinder 2 will rise, causing the scum to rise and eventually flow out through the opening at the top of the upper conical cylinder 3, and then the scum (here the scum refers to a mixture of water and scum) flows into the gap between the outer cylinder 1 and the inner cylinder 2, and finally flows into the interior of the upper chamber 8.

[0053] It should be noted that when the second annular plate 19 rises and no longer presses against the closing plate 35, the torsion spring 37 releases its force and drives the closing plate 35 to rotate toward the inside of the dehydration cylinder 5 with the hinge column 36 as the axis. At this time, the upper chamber 8 is connected to the inside of the dehydration cylinder 5 through the connecting groove 17, and the scum in the upper chamber 8 can flow into the dehydration cylinder 5 through the connecting groove 17. The same principle as the dehydration work in the first embodiment enables the device to collect and dehydrate the scum.

[0054] Obviously, the above embodiments are merely examples for the purpose of clear explanation, and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived therefrom are still within the scope of protection of the claims of this patent application.

Claims

1. A three-phase separator for easy sewage discharge, comprising a housing, characterized in that: An inner cylinder (2) is provided in the outer shell, an upper conical cylinder (3) and a lower conical cylinder (4) are provided at the top and bottom of the inner cylinder (2) respectively, a dehydration cylinder (5) is fixedly connected to the bottom of the lower conical cylinder (4), a sleeve (6) is provided at the bottom of the outer shell, the dehydration cylinder (5) is located inside the sleeve (6) and the bottom of the dehydration cylinder (5) passes through the bottom wall of the sleeve (6), a partition (7) is provided between the outer wall of the dehydration cylinder (5) and the inner wall of the sleeve (6), the partition (7) divides the space between the dehydration cylinder (5) and the sleeve (6) into an upper chamber (8) and a lower chamber (9), and a filter hole (10) matching the lower chamber (9) is provided on the dehydration cylinder (5); A first rotating shaft (11) is coaxially arranged inside the cylinder (5), a spiral blade (12) is arranged on the first rotating shaft (11), an annular block (13) is slidably passed through the first rotating shaft (11), the annular block (13) is located below the spiral blade (12), and the outer surface of the annular block (13) is slidably sealed with the inner wall of the dehydration cylinder (5); it also includes a support plate (14) arranged on the outer shell, a first spring (15) is installed between the bottom of the annular block (13) and the top of the support plate (14), a slag discharge pipe (16) is arranged on the dehydration cylinder (5) below the sleeve (6), and the outer surface of the annular block (13) blocks the input end of the slag discharge pipe (16); The side wall of the dehydration cylinder (5) is provided with a connecting groove (17) matching the upper chamber (8); a closing plate mechanism is hinged on the inner wall of the connecting groove (17); a first annular plate (18) is fixedly connected to the top of the inner wall of the dehydration cylinder (5); a second annular plate (19) is slidably matched with the bottom of the first annular plate (18); when the second annular plate (19) abuts against the closing plate mechanism, the closing plate mechanism closes the connecting groove (17); an annular capsule (20) is also included; the inner wall of the first annular plate (18) and the inner wall of the second annular plate (19) are respectively fixedly connected to the two ends of the annular capsule (20); and a dispersion wheel mechanism is also included; the power input end of the dispersion wheel mechanism is drivingly connected to the top end of the first rotating shaft (11); the dispersion wheel mechanism is drivingly matched with the second annular plate (19); The second annular plate (19) is provided with a slide groove (30), the bottom of the first annular plate (18) is provided with an insert plate (31), the bottom of the insert plate (31) is inserted into the slide groove (30) and the outer surface of the insert plate (31) is slidably matched with the inner wall of the slide groove (30), and a second spring (45) is installed between the first annular plate (18) and the second annular plate (19); the second annular plate (19) is fixedly connected with a connecting rod (32), the connecting rod (32) passes through the first annular plate (18) and a toggle block (33) is provided at the top of the connecting rod (32); The dispersion wheel mechanism comprises a second rotating shaft (40), a reducer (41) is provided at the top end of the first rotating shaft (11), and the output end of the reducer (41) is drivingly connected to the second rotating shaft (40); a dispersion wheel (38) is coaxially fixedly connected to the second rotating shaft (40), a conical surface is provided at the top of the dispersion wheel (38), and an inclined blade (39) is provided on the conical surface, and the inclined blade (39) matches the toggle block (33), and when the dispersion wheel (38) rotates so that the inclined blade (39) abuts against the toggle block (33), the linkage rod (32) pulls the second annular plate (19) upward; A bracket (42) is fixedly connected to the second rotating shaft (40) above the dispersion wheel (38); a scraper rod (43) is provided on the bracket (42); one side of the scraper rod (43) is in contact with the inner wall of the lower conical cylinder (4); an electric spring device (44) is installed between the dispersion wheel (38) and the bracket (42); and a scum detection device (21) is installed on the upper conical cylinder (3); the scum detection device (21) is electrically connected to the electric spring device (44).

2. A three-phase separator for easy sewage discharge according to claim 1, characterized in that: The outer shell comprises an outer cylinder (1), an upper end cap (22) and a lower end cap (23); the outer cylinder (1) is coaxially sleeved on the inner cylinder (2), and a support block is provided between the outer surface of the inner cylinder (2) and the inner wall of the outer cylinder (1); the upper end cap (22) and the lower end cap (23) are detachably connected to the top end and the bottom end of the outer cylinder (1), respectively; the bottom end of the lower end cap (23) is fluidically connected to the top end of the sleeve (6); a support leg (24) is fixedly connected to the lower end cap (23), and the support plate (14) is fixedly connected to the support leg (24).

3. A three-phase separator for easy sewage discharge according to claim 1, characterized in that: A motor (25) is installed at the bottom of the support plate (14); an input end of the motor (25) passes through the support plate (14) and is coaxially fixedly connected to the bottom end of the first rotating shaft (11).

4. A three-phase separator for easy sewage discharge according to claim 2, characterized in that: The outer cylinder (1) is provided with a feed valve (26) and a first drain valve (27); the output end of the feed valve (26) and the input end of the first drain valve (27) both penetrate into the interior of the inner cylinder (2); the height of the feed valve (26) is lower than the height of the first drain valve (27); and a filter cover (28) matching the first drain valve (27) is provided on the inner wall of the inner cylinder (2).

5. A three-phase separator for easy sewage discharge according to claim 2, characterized in that: The sleeve (6) is provided with a second drain valve (29), and the input end of the second drain valve (29) is in fluid communication with the lower chamber (9); the upper sealing head (22) is provided with an exhaust valve (46), and a demister (47) matching the exhaust valve (46) is installed in the upper sealing head (22).

6. A three-phase separator for easy sewage discharge according to claim 1, characterized in that: The closing plate mechanism comprises a hinge block (34) and a closing plate (35); the hinge block (34) is fixed on the inner wall of the connecting groove (17); a hinge column (36) is provided on the closing plate (35); the hinge column (36) is rotatably connected to the hinge block (34); a torsion spring (37) is sleeved on the hinge column (36) between the hinge block (34) and the closing plate (35).

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