A sewage treatment dosing control system

Abstract

The present invention discloses a sewage treatment dosing control system, comprising a drug mixing treatment unit and a filter press unit, wherein the drug mixing treatment unit comprises a mixing tank, a discharge control valve, a rotary drive mechanism, an air source and a drug supply mechanism, the mixing tank is provided with a bracket outside, the top of the mixing tank is provided with a liquid inlet and an exhaust port communicated with the interior, the bottom of the mixing tank is provided with a discharge port, and a discharge valve is matched and installed, and the bottom of the discharge valve is connected to a discharge pipe; the discharge control valve is matched and installed in the middle of the discharge pipe, dividing the discharge pipe into an upper and lower section that can be controlled to be connected, and the side of the upper section is connected to a sewer channel, and a filter screen is provided at the entrance of the sewer channel; the present invention has a unique structure and ingenious design, which can not only effectively solve the problem of uneven mixing of sewage treatment chemicals and sewage in the existing sewage treatment process, but also effectively solve the problem that sewage treatment chemicals cannot be efficiently mixed with sewage.

Description

Technical Field

[0001] The invention belongs to the technical field of sewage treatment, and in particular relates to a sewage treatment dosing control system. Background Art

[0002] Wastewater treatment is the process of purifying wastewater to meet the required water quality for discharge into a water body or reuse. It is widely used in various fields, including construction, agriculture, transportation, energy, petrochemicals, environmental protection, urban landscapes, healthcare, and catering. Sewage treatment methods can be categorized into three types: physical, biological, and chemical. During the sewage treatment process, sewage treatment chemicals, such as flocculants, are used to further treat the wastewater, agglomerating particulate matter into larger particles that can be separated from the liquid.

[0003] At present, in the sewage treatment process, the sewage treatment agent is generally added by using a pump body to directly pump the sewage treatment agent into the sewage tank to mix with the sewage. However, the sewage treatment agent pumped into the sewage tank cannot be evenly distributed in the sewage, and there is a problem of uneven mixing of the sewage treatment agent and the sewage, which will affect the sewage treatment quality. In addition, since the pumping direction of the sewage treatment agent is fixed, the sewage treatment agent cannot be efficiently mixed with the sewage, which seriously affects the sewage treatment efficiency. Summary of the Invention

[0004] In response to the defects and problems existing in existing sewage treatment, the present invention provides a sewage treatment dosing control system with a unique structure and ingenious design. It can not only effectively solve the problem of uneven mixing of sewage treatment chemicals and sewage in the existing sewage treatment process, but also effectively solve the problem that sewage treatment chemicals cannot be efficiently mixed with sewage.

[0005] The solution adopted by the present invention to solve its technical problems is: a sewage treatment dosing control system, including a drug mixing treatment unit and a filter press unit, the drug mixing treatment unit including a mixing tank, a discharge control valve, a rotary drive mechanism, an air source and a drug supply mechanism, the mixing tank is provided with a bracket outside, the top of the mixing tank is provided with a liquid inlet and an exhaust port connected to the interior, the bottom of the mixing tank is provided with a discharge port, and a discharge valve is installed in a matching manner, and the bottom of the discharge valve is connected to a discharge pipe; the discharge control valve is matched and installed in the middle of the discharge pipe, dividing the discharge pipe into two upper and lower sections that can be controlled to be connected, and the side of the upper section is connected to a sewer channel, and a filter screen is provided at the entrance of the sewer channel; a hollow rotating shaft is provided concentrically rotating in the mixing tank, the top of the hollow rotating shaft extends upward out of the mixing tank, and both ends of the hollow rotating shaft Both are sealed; the rotary drive mechanism includes a gas-liquid box fixedly mounted on the top of the mixing tank, the gas-liquid box is sealed and rotated on the top of the hollow shaft, a partition is provided in the middle of the gas-liquid box, the partition divides the internal space of the gas-liquid box vertically into an upper air chamber and a lower flocculant chamber, and the hollow shafts in the air chamber and the flocculant chamber are both provided with through holes connected to the internal cavity of the hollow shaft, the air supply end of the air source is connected to the air chamber, and the drug supply end of the drug supply mechanism is connected to the flocculant chamber; a stirring tooth piece is installed at the lower part of the hollow shaft, and an inner cavity connected to the inner cavity of the hollow shaft is provided in the stirring tooth piece, the water-facing surface of the stirring tooth piece is a blade, and an exhaust hole connected to the inner cavity is opened on its back surface; the filter press unit includes a filter press device connected to the bottom of the discharge pipe, and the mud discharge port of the filter press device is inclined upward.

[0006] The filter press device is arranged below the discharge pipe. The filter press device is a screw stacking machine, and the mud receiving port of the screw stacking machine is connected to the discharge pipe.

[0007] The bottom end of the hollow rotating shaft is fixedly sleeved with a connecting sleeve, the stirring teeth are arranged radially and fixedly connected to the outer ring surface of the connecting sleeve, and the cavity in the stirring teeth passes through the connecting sleeve and is communicated with the cavity in the hollow rotating shaft.

[0008] A plurality of auxiliary stirring paddles are arranged at intervals on the hollow rotating shaft above the stirring tooth piece.

[0009] An air inlet hole connected to the air chamber and a medicine inlet hole connected to the flocculant chamber are respectively provided on the side wall of one side of the gas-liquid box. The air inlet hole is matched with an air pipe, and the other end of the air pipe is connected to the air supply end of the air source. The medicine inlet hole is matched with a one-way liquid inlet valve, and the other end of the one-way liquid inlet valve is connected to the medicine supply end of the medicine supply mechanism.

[0010] The drain control valve includes a valve plate and a telescopic control mechanism. A valve plate socket connected to the interior of the drain pipe is provided on the upper side wall of the drain pipe on the opposite side of the sewer channel, and the valve plate socket is inclined toward the interior of the drain pipe. The valve plate is matched and installed on the side wall of the drain pipe on the empty side of the valve plate socket through the telescopic control mechanism, and the tail end of the valve plate passes through the valve plate socket and is matched and inserted into the drain pipe, sealingly fitting with the interior of the drain pipe, sealingly dividing the internal space of the drain pipe into two sections, and the sewer channel entrance is located above the tail end of the valve plate in the closed state.

[0011] The contraction control mechanism includes a valve housing that is slidably mounted on the valve plate on the outside of the discharge pipe, the tail end of the valve housing is fixedly connected to the side wall of the discharge pipe, a driving groove that is connected to the interior is opened on the bottom surface of the valve housing along the sliding direction of the valve plate, and a rack is matched and fixed on the bottom surface of the valve plate located in the driving groove on the outside of the discharge pipe, and a driving gear is rotatably installed on the bottom surface of the valve housing, the driving gear is engaged with the rack on the bottom surface of the valve plate, and a driving gear fixed shaft on one side of the driving gear extends outward from the valve housing and is fixed with a driving assembly.

[0012] Beneficial effects of the present invention: The sewage treatment dosing control system provided by the present invention has a unique structure and ingenious design. While the high-pressure airflow drives the stirring teeth to rotate to stir the sewage in the mixing tank, the high-pressure airflow is used to mix with the flocculant, so that the airflow and the flocculant are discharged through the exhaust holes on the back of the stirring teeth, and at the same time, bubbles carrying the flocculant are generated, which effectively mix and carry the flocculant into the sewage. The rising power of the bubbles enables the flocculant to rise from the deep layer of the sewage to the top layer, fully contact with the sewage, and accelerate the flocculation process. In this way, the suspended matter, particles and organic matter in the sludge can be quickly and fully combined into larger flocs, the contact reaction between the flocculant and the sludge can be accelerated, and the flocculation efficiency can be improved. At the same time, the stirring action can better promote the sedimentation and separation of solid particles, and further Improve treatment efficiency; and in this process, the blades on the water-facing side of the rotating stirring teeth will continuously cut off and break up the solid particles and flocculants in the sewage, forcing the sewage or flocculants wrapped in the solid particles and flocculants to be released, which can further avoid the problem of insufficient mixing of sewage and flocculants, and further improve the stirring uniformity and mixing effect of the sludge; in the drainage process, the sewage is intercepted and filtered by the cooperation of the discharge control valve and the filter, and after the sewage liquid in the mixing tank is discharged, the solid particle flocculants are compressed for the second time by the filter press unit, which can effectively reduce the volume of the flocculants, reduce the amount of flocculants produced during the treatment process, reduce the cost of subsequent treatment and disposal, help improve the stability and transparency of the treated water quality, and make the subsequent water treatment process more stable and reliable. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention.

[0014] Figure 2 It is a schematic diagram of the three-dimensional structure of the mixing tank of the present invention.

[0015] Figure 3 It is a schematic structural diagram of the discharge control valve of the present invention.

[0016] Figure 4 It is a schematic diagram of the internal structure of the mixing tank of the present invention.

[0017] Figure 5 It is a schematic diagram of the three-dimensional structure of the stirring tooth piece of the present invention.

[0018] Figure 6 It is a schematic diagram of the three-dimensional structure of the rotary drive mechanism of the present invention.

[0019] Figure 7 It is a schematic diagram of the position of the through hole of the hollow shaft of the present invention.

[0020] Figure 8 It is a schematic diagram of the location of the terminal air-water chamber of the present invention.

[0021] Numbers in the figure: 1 is a mixing tank, 11 is a liquid inlet, 12 is an exhaust port, 13 is a discharge port, 14 is a discharge pipe, 141 is a valve plate jack, 15 is a hollow shaft, 151 is a through hole, 152 is an air pipe a, 153 is a liquid pipe b, 16 is a ring platform, 2 is a discharge control valve, 21 is a valve plate, 221 is a valve housing, 222 is a drive groove, 223 is a rack, 224 is a drive gear, 2241 is a fixed shaft, 225 is a hand wheel, and 3 is a rotary drive mechanism , 31 is the gas-liquid box, 311 is the air chamber, 312 is the flocculant chamber, 313 is the air inlet, 314 is the medicine inlet, 315 is the air pipe, 316 is the one-way liquid inlet valve, 317 is the discharge pipe, 32 is the support leg, 33 is the partition, 4 is the bracket, 5 is the sewer channel, 51 is the filter screen, 6 is the sealing bearing, 7 is the stirring tooth plate, 72 is the exhaust hole, 73 is the connecting sleeve, 731 is the terminal gas-water chamber, 8 is the filter press device, 81 is the drainage pipe, and 9 is the collection tank. Implementation Method

[0022] The present invention will be further described below with reference to the accompanying drawings and examples. Example

[0023] In response to the problems raised by the above background technology, this embodiment provides a sewage treatment dosing control system with unique structure and ingenious design, such as Figure 1-7 As shown, it includes a drug mixing processing unit and a filter press unit. The drug mixing processing unit includes a mixing tank 1, a discharge control valve 2, a rotary drive mechanism 3, an air source and a drug supply mechanism. A bracket 4 is provided outside the mixing tank to support the mixing tank and reserve space for the setting of the filter press unit.

[0024] The top of the mixing tank 1 is provided with a liquid inlet 11 and an exhaust port 12 connected to the interior. The liquid inlet 11 is used to inject the sewage to be treated into the mixing tank, and the exhaust port 12 is used to balance the air pressure in the mixing tank so that the internal pressure is the same as the external pressure.

[0025] The bottom of the mixing tank 1 is provided with a drain port 13, and is matched with a drain valve. There are many types of drain valves. The drain valve of this embodiment adopts an existing butterfly valve. The drain valve can control the opening and closing of the drain port at the bottom of the mixing tank; the bottom of the drain valve is connected to a drain pipe 14, which is a square pipe arranged vertically. The drain control valve is matched and installed in the middle of the drain pipe, dividing the drain pipe into two upper and lower sections that can be controlled to communicate, and the side of the upper section of the drain pipe 14 is connected to the sewer channel 5. A filter screen 51 is provided at the entrance of the sewer channel. Specifically:

[0026] like Figure 2 and Figure 3 As shown, the discharge control valve 2 includes a valve plate 21 and a telescopic control mechanism. A valve plate plug hole 141 communicating with the interior of the discharge pipe 14 is provided on the upper side wall of the discharge pipe 14 on the opposite side of the sewer channel 5, and the valve plate plug hole 141 is inclined toward the interior of the discharge pipe 14. The valve plate 21 is matched and mounted on the discharge pipe side wall on the empty side of the valve plate plug hole through the telescopic control mechanism, and the tail end of the valve plate 21 passes through the valve plate plug hole and is matched and inserted into the discharge pipe, sealingly fitting with the interior of the discharge pipe 14, sealingly dividing the internal space of the discharge pipe 14 into upper and lower sections, and the sewer channel entrance is located above the tail end of the valve plate in the closed state. The insertion and withdrawal of the valve plate can be controlled by the telescopic control mechanism.

[0027] The contraction control mechanism includes a valve housing 221 which is slidably mounted on the valve plate on the outside of the discharge pipe. The tail end of the valve housing 221 is fixedly connected to the side wall of the discharge pipe. A driving groove 222 which is connected to the interior is provided on the bottom surface of the valve housing 221 along the sliding direction of the valve plate. A rack 223 is fixed to the bottom surface of the valve plate located in the driving groove on the outside of the discharge pipe. A driving gear 224 is rotatably installed on the bottom surface of the valve housing 221. The driving gear 224 passes through the driving groove and engages with the rack on the bottom surface of the valve plate. A driving gear fixed shaft 2241 on one side of the driving gear 224 extends out of the valve housing and is fixed with a driving assembly. The driving gear is driven to rotate by the driving assembly, and the driving gear will drive the valve plate to slide synchronously through the rack engaged with it, thereby controlling the connection and closing of the upper and lower sections of the discharge channel.

[0028] There are many types of further driving components. For example, the driving component is a hand wheel 225 fixedly mounted on the fixed shaft of the driving gear. When the hand wheel is rotated, the driving gear is synchronously driven to rotate.

[0029] During use, when the discharge control valve is closed, open the discharge valve, and the sewage liquid in the mixing tank flows into the discharge pipe through the bottom discharge port, and is blocked by the closed discharge control valve and passes through the filter screen to be discharged into the sewer channel. In this process, the solid particles in the sewage will be filtered and intercepted by the filter screen in the discharge pipe. After the sewage liquid is discharged, the discharge control valve will be opened, and the filtered solid particles will fall along the discharge pipe into the filter press unit for further treatment. The sewage liquid contained in the solid particles will be filtered out and discharged into the sewage liquid collection tank for the next step of treatment.

[0030] A hollow shaft 15 is provided in the mixing tank 1 for coaxial rotation. The top of the hollow shaft 15 extends upward out of the mixing tank 1, and both ends of the hollow shaft are sealed. Specifically:

[0031] A ring platform 16 is concentrically provided at the top of the mixing tank 1. A shaft insertion hole communicating with the interior of the mixing tank is provided at the top of the mixing tank within the ring platform 16. The hollow rotating shaft is rotatably installed in the ring platform 16 at the top of the mixing tank through a sealed bearing, and the bottom end of the hollow rotating shaft passes through the shaft insertion hole and is inserted into the mixing tank.

[0032] The rotary drive mechanism 3 includes a gas-liquid box 31 fixedly mounted on the top of the mixing tank. The gas-liquid box 31 is sealed and rotatably mounted on the top of the hollow rotating shaft. Specifically, a mounting hole that passes through the gas-liquid box is vertically provided in the middle of the gas-liquid box, and is mounted on the hollow rotating shaft above the mixing tank through a sealed bearing 6. A plurality of supporting legs 32 are evenly fixed on the outer ring surface of the gas-liquid box along the circumference, and the other end of the supporting leg is fixedly connected to the top of the mixing tank.

[0033] A partition 33 is provided in the middle of the gas-liquid box. An axial hole is provided in the middle of the partition, and the partition is sealed and rotatably mounted on the hollow rotating shaft inside the gas-liquid box. The partition is sealed and connected to the inner wall of the gas-liquid box on all sides. The partition divides the internal space of the gas-liquid box vertically into an upper air chamber 311 and a lower flocculant chamber 312. The air supply end of the air source is connected to the air chamber. The air source is used to continuously inject high-pressure air into the air chamber during sewage treatment operations. The drug supply end of the drug supply mechanism is connected to the flocculant chamber. Specifically:

[0034] An air inlet 313 communicating with the air chamber and a medicine inlet 314 communicating with the flocculant chamber are respectively provided on the side wall of one side of the gas-liquid box. The air inlet 313 is matched and connected with an air pipe 315, and the other end of the air pipe is connected with the air supply end of the air source. The air source includes an external high-pressure air pump, and the exhaust end of the high-pressure air pump is connected to the air pipe. When the high-pressure air pump is working, it will continuously inject high-pressure airflow into the air chamber through the air pipe; the medicine inlet hole is matched and connected with a one-way liquid inlet valve 316, and the other end of the one-way liquid inlet valve is connected with the medicine supply end of the medicine supply mechanism. The medicine supply mechanism can inject the flocculant or other agents required for sewage treatment into the flocculant chamber through the one-way liquid inlet valve.

[0035] The drug supply mechanism includes a flocculation pressurizing box, the discharge port of the flocculation pressurizing box is connected to a discharge pipe, the other end of the discharge pipe 317 is connected to a one-way liquid inlet valve, flocculant is stored in the flocculation pressurizing box, and the flocculation pressurizing box is connected to a booster pump, which is used to fill the flocculation pressurizing box with high-pressure airflow, and discharge the flocculant in the flocculation pressurizing box into the flocculant chamber through the discharge pipe and the one-way liquid inlet valve.

[0036] The hollow shafts in the air chamber and the flocculant chamber are both provided with through holes 151 that are connected to the internal cavity of the hollow shaft. A stirring tooth piece 7 is installed at the lower part of the hollow shaft in the mixing tank. The stirring tooth piece 7 is provided with an inner cavity that is connected to the inner cavity of the hollow shaft. The water-facing surface of the stirring tooth piece is a blade, and the back surface thereof is provided with an exhaust hole 72 that is connected to the inner cavity. There are many ways to connect the stirring tooth piece to the hollow shaft. For example, the bottom end of the hollow shaft is fixedly sleeved with a connecting sleeve 73, the stirring tooth piece is arranged radially and is fixedly connected to the outer annular surface of the connecting sleeve, and the inner cavity of the stirring tooth piece passes through the connecting sleeve and the hollow shaft. The cavity inside the rotating shaft is connected. When high-pressure airflow is continuously injected into the air chamber through an air source, the high-pressure gas injected into the air chamber will enter the hollow rotating shaft and be discharged from the exhaust hole on the back water surface of the stirring ruler through the inner cavity of the stirring ruler. When the high-pressure airflow is discharged through the exhaust hole on the back water surface of the stirring ruler, it will push the stirring ruler to drive the rotating shaft to rotate, thereby stirring the sewage in the mixing tank. Compared with the traditional electric drive mechanism, pneumatic drive can reduce energy consumption and improve energy utilization efficiency. In this process, the high-pressure airflow continuously discharged through the exhaust hole will generate bubbles in the sewage in the mixing tank and rise along with the sewage.

[0037] The filter press unit includes a filter press device 8 connected to the bottom of the discharge pipe. The mud discharge port of the filter press device is arranged to be inclined upward, and is used to compress the solid particle flocs filtered out of the sewage and squeeze out the sewage liquid contained therein, which can effectively reduce the volume of the flocs, reduce the amount of flocs produced during the treatment process, and reduce the cost of subsequent treatment and disposal. There are many types of filter press devices. For example, the filter press device in this embodiment is an existing screw filter press. The mud inlet of the screw filter press is connected to the discharge pipe, and the drain port of the screw filter press is connected to the drainage pipe 81. The other end of the drainage pipe extends to the liquid collection tank 9.

[0038] Before using the sewage treatment dosing control system provided in this embodiment, first confirm that all unit components have been correctly installed and connected, and then inject sewage into the mixing tank through the liquid inlet. After the sewage is injected, start the air source, and the high-pressure airflow continuously injected into the air chamber will pass through the hollow shaft and the inner cavity of the stirring ruler, and be discharged from the exhaust hole on the back water surface of the stirring ruler, driving the stirring ruler to drive the hollow shaft to rotate and stir the sewage in the mixing tank; then, according to the sewage treatment volume, add an appropriate amount of flocculant into the flocculant chamber through the drug supply mechanism, and the flocculant will pass through the through hole on the hollow shaft in the flocculant chamber into the hollow shaft cavity, combine with the airflow flowing through the cavity, and be released through the exhaust hole on the back water surface of the stirring ruler. When the flocculant is combined with the air flow and discharged from the exhaust hole, bubbles are formed, carrying the flocculant around the bubbles, which not only expands the degree of contact between the flocculant and the sewage, but also the bubbles have upward momentum, which can carry the flocculant from the deep layer of the sewage to the top layer, fully allowing the flocculant to contact the sewage, accelerating the flocculation process, and achieving the effect of rapid and sufficient flocculation of the sewage. In this process, the blades on the water-facing surface of the rotating stirring teeth will continuously cut off and break up the solid particles and flocculants in the sewage, forcing the sewage or flocculant wrapped in the solid particles and flocculants to be released, which can further avoid the problem of insufficient mixing of sewage and flocculant, and improve the stirring uniformity and mixing effect of the sludge.

[0039] After the flocculant mixing is completed, the air source is closed and the exhaust valve is opened. The sewage in the mixing tank will pass through the filter screen into the sewer channel and be discharged into the collection pool under the sealing of the discharge control valve plate in the closed state. In this process, the solid particle flocs in the sewage will be filtered by the filter screen and intercepted in the discharge pipe above the discharge control valve plate. When the sewage in the mixing tank is discharged, the discharge control valve and the filter press of the filter press unit are opened in turn. When the discharge control valve is opened, the solid particle flocs filtered and intercepted in the discharge pipe by the filter screen will fall along the discharge control valve into the filter press for compression, squeezing out the sewage liquid contained in it and discharging it into the collection pool, which can effectively reduce the volume of the flocs, reduce the amount of flocs produced during the treatment process, and reduce the cost of subsequent treatment and disposal. After the single sewage dosing treatment is completed, the discharge valve and the discharge control valve are closed, and sewage can be continued to be injected into the mixing tank for sewage dosing treatment.

[0040] Compared with the traditional sewage dosing treatment method, the sewage treatment dosing control system provided in this embodiment uses high-pressure airflow to drive the stirring teeth to rotate to stir the sewage in the mixing tank, and at the same time uses high-pressure airflow to mix with the flocculant, so that the airflow and flocculant are discharged through the exhaust holes on the back of the stirring teeth, and at the same time, bubbles carrying the flocculant are generated, which effectively mix and carry the flocculant into the sewage. The rising power of the bubbles enables the flocculant to rise from the deep layer of the sewage to the top layer, fully contact with the sewage, and accelerate the flocculation process. In this way, the suspended matter, particles and organic matter in the sludge can be quickly and fully combined into larger flocs, the contact reaction between the flocculant and the sludge can be accelerated, and the flocculation efficiency can be improved. At the same time, the stirring action can better promote the sedimentation and separation of solid particles, further improving the treatment The sludge is then separated from the water by a filter, which allows the sludge to be mixed with water for a longer time and is then separated into smaller pieces. The sludge is then separated into smaller pieces, which allows the sludge to be mixed with water for a longer time and is then separated into smaller pieces. The sludge is then separated into smaller pieces, which allows the sludge to be mixed with water for a longer time and is then separated into smaller pieces.

[0041] Furthermore, a plurality of auxiliary stirring paddles are arranged at intervals on the hollow rotating shaft above the stirring teeth.

[0042] Furthermore, if Figure 8 As shown, an annular terminal air-water chamber 731 is provided in the connecting sleeve 73, and the inner cavity of the stirring tooth piece is connected to the terminal air-water chamber 731. An air pipe a152 and a liquid pipe b153 are axially installed in the hollow rotating shaft 15. The top of the air pipe a152 is connected to the air chamber through the through hole of the hollow rotating shaft 15 in the air chamber 311, and the top of the liquid pipe b153 is connected to the flocculant chamber 312 through the through hole of the hollow rotating shaft in the flocculant chamber 312. The bottom ends of the air pipe a152 and the liquid pipe b153 are connected to the connecting sleeve 73. The terminal air-water chamber 731 is connected in the connecting sleeve 73. When in use, the flocculant injected into the flocculant chamber 312 will be discharged into the terminal air-water chamber 731 through the liquid pipe b153. The high-pressure gas injected into the air chamber will enter the terminal air-water chamber 731 through the air pipe a152 and enter the stirring teeth. It will be fully mixed with the flocculant in the terminal air-water chamber 731 in the terminal air-water chamber 731, and carry the flocculant into the stirring teeth for discharge, thereby further improving the mixing effect of the gas and the flocculant.

[0043] It should be understood that the above-described specific embodiments of the present invention are merely illustrative or illustrative of the principles of the present invention and do not constitute limitations of the present invention. Therefore, any modifications, equivalent substitutions, improvements, etc. made without departing from the spirit and scope of the present invention should be included within the scope of protection of the present invention. In addition, the appended claims are intended to cover all variations and modifications that fall within the scope and metes and bounds of the appended claims, or equivalents thereof.

Claims

1. A sewage treatment dosing control system, characterized in that: The invention comprises a drug mixing processing unit and a filter pressing unit, wherein the drug mixing processing unit comprises a mixing tank, a discharge control valve, a rotary drive mechanism, an air source and a drug supply mechanism, a bracket is provided on the outside of the mixing tank, a liquid inlet and an exhaust port communicated with the interior are provided on the top of the mixing tank, a discharge port is provided on the bottom of the mixing tank, and a discharge valve is installed in a matching manner, and the bottom of the discharge valve is connected to a discharge pipe; the discharge control valve is matched and installed in the middle of the discharge pipe, dividing the discharge pipe into two sections, the upper and lower sections, which can be controlled to be connected, and the side of the upper section is connected to a sewer channel, and a filter screen is provided at the entrance of the sewer channel; a hollow rotating shaft is provided for coaxial rotation in the mixing tank, the top of the hollow rotating shaft extends upward out of the mixing tank, and both ends of the hollow rotating shaft are sealed; the rotary drive mechanism comprises An air-liquid box is fixedly mounted on the top of the mixing tank, and the air-liquid box is sealed and rotatably mounted on the top of the hollow rotating shaft. A partition is provided in the middle of the air-liquid box, which vertically divides the internal space of the air-liquid box into an upper air chamber and a lower flocculant chamber, and the hollow rotating shafts in the air chamber and the flocculant chamber are both provided with through holes connected to the internal cavity of the hollow rotating shaft, the air supply end of the air source is connected to the air chamber, and the medicine supply end of the medicine supply mechanism is connected to the flocculant chamber; a stirring tooth piece is installed at the lower part of the hollow rotating shaft, and an inner cavity connected to the inner cavity of the hollow rotating shaft is provided in the stirring tooth piece, the water-facing surface of the stirring tooth piece is a blade, and an exhaust hole connected to the inner cavity is provided on the water-repellent surface; the filter press unit includes a filter press device connected to the bottom of the discharge pipe, and the mud discharge port of the filter press device is arranged obliquely upward; The bottom end of the hollow shaft is fixedly sleeved with a connecting sleeve, the stirring teeth are arranged radially and fixedly connected to the outer annular surface of the connecting sleeve, and the cavity inside the stirring teeth passes through the connecting sleeve and communicates with the cavity inside the hollow shaft; An annular terminal air-water chamber is provided in the connecting sleeve, and the inner cavity of the stirring tooth plate is connected to the terminal air-water chamber. An air pipe a and a liquid pipe b are axially installed in the hollow rotating shaft. The top end of the air pipe a is connected to the air chamber through the through hole of the hollow rotating shaft in the air chamber, and the top end of the liquid pipe b is connected to the flocculant chamber through the through hole of the hollow rotating shaft in the flocculant chamber. The bottom ends of the air pipe a and the liquid pipe b are connected to the terminal air-water chamber in the connecting sleeve.

2. The sewage treatment dosing control system according to claim 1, characterized in that: The filter press device is arranged below the discharge pipe. The filter press device is a screw stacking machine, and the mud receiving port of the screw stacking machine is connected to the discharge pipe.

3. The sewage treatment dosing control system according to claim 1, characterized in that: A plurality of auxiliary stirring paddles are arranged at intervals on the hollow rotating shaft above the stirring tooth piece.

4. The sewage treatment dosing control system according to claim 1, characterized in that: An air inlet hole connected to the air chamber and a medicine inlet hole connected to the flocculant chamber are respectively provided on the side wall of one side of the gas-liquid box. The air inlet hole is matched with an air pipe, and the other end of the air pipe is connected to the air supply end of the air source. The medicine inlet hole is matched with a one-way liquid inlet valve, and the other end of the one-way liquid inlet valve is connected to the medicine supply end of the medicine supply mechanism.

5. The sewage treatment dosing control system according to claim 1, characterized in that: The drain control valve includes a valve plate and a telescopic control mechanism. A valve plate socket connected to the interior of the drain pipe is provided on the upper side wall of the drain pipe on the opposite side of the sewer channel, and the valve plate socket is inclined toward the interior of the drain pipe. The valve plate is matched and installed on the side wall of the drain pipe on the empty side of the valve plate socket through the telescopic control mechanism, and the tail end of the valve plate passes through the valve plate socket and is matched and inserted into the drain pipe, sealingly fitting with the interior of the drain pipe, sealingly dividing the internal space of the drain pipe into two sections, and the sewer channel entrance is located above the tail end of the valve plate in the closed state.

6. The sewage treatment dosing control system according to claim 5, characterized in that: The telescopic control mechanism includes a valve housing that is slidably mounted on the valve plate on the outside of the discharge pipe, the tail end of the valve housing is fixedly connected to the side wall of the discharge pipe, a driving groove that is connected to the interior is opened on the bottom surface of the valve housing along the sliding direction of the valve plate, and a rack is matched and fixed on the bottom surface of the valve plate located in the driving groove on the outside of the discharge pipe, a driving gear is rotatably installed on the bottom surface of the valve housing, the driving gear is engaged with the rack on the bottom surface of the valve plate, and a driving gear fixed shaft on one side of the driving gear extends outward from the valve housing and is fixed with a driving assembly.

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