Wastewater treatment device and method based on oil well cement fluid loss additive production

Abstract

The present invention discloses a wastewater treatment device and method based on the production of oil well cement fluid loss reducer, and relates to the field of wastewater treatment technology. A plurality of chemical agent uniform distribution mechanisms are provided within a chemical agent application mechanism. When applying flocculant, the flocculant can be sprayed at high speed through nozzles 1 and 2 of a plurality of flocculant spray arm assemblies, so that the flocculant spray arm assemblies are driven by a reaction force to transform from a vertical state to a horizontal state, thereby achieving the purpose of widening the flocculant spraying range. A smaller number of chemical agent uniform distribution mechanisms can be provided to meet the purpose of simultaneously applying wastewater treatment chemicals over a larger area. The reaction force when the flocculant is sprayed can provide thrust for the flocculant spray arm assemblies. The flocculant spray arm assemblies can disturb the surrounding wastewater during rotation, achieving the effect of stirring and mixing the wastewater and flocculant. This process can complete the stirring operation while spraying the flocculant without the need for a separate stirring device.

Description

Technical Field

[0001] The present invention relates to the technical field of wastewater treatment, in particular to a wastewater treatment device and method based on the production of oil well cement fluid loss additive. Background Art

[0002] Oil well cement fluid loss additive is a material that controls the loss of the liquid phase in cement slurry into permeable formations, thereby maintaining an appropriate water-cement ratio in the cement slurry. During the production process of oil well cement fluid loss additive, a large amount of wastewater is generated during the pretreatment of raw materials, washing and flushing after the polymerization reaction, and cleaning of equipment. This wastewater contains unreacted raw materials, reaction by-products, and other potentially harmful substances, and must be purified before discharge.

[0003] In the wastewater treatment process, the addition of flocculants and iron salt dephosphorizers is a key step. They are used to promote the coagulation and sedimentation of suspended matter and adjust the phosphorus content of wastewater, thereby optimizing the subsequent treatment effect.

[0004] The integrated wastewater treatment equipment disclosed in the patent application with reference publication (announcement) number CN108658306A adopts an integrated design with a compact layout, simple method, small footprint, and easy transportation and management, which greatly reduces equipment investment. The PLC control cabinet and the dosing metering pump achieve accurate measurement of wastewater and chemical flow. By inputting the adjustment parameters of the metering pump, the PLC can calculate and display the real-time dosage online on the control screen, ensuring better treatment effects while controlling chemical costs and avoiding secondary pollution. The combination of chemical treatment technology and physical adsorption technology for wastewater achieves deep purification of wastewater, improves the treatment effect of wastewater, and ensures the water quality of the effluent.

[0005] A comprehensive analysis of the above patents reveals the following defects:

[0006] Traditional addition methods often involve injecting chemical treatment agents directly into the wastewater regulating tank at a single point or a few points. This method can easily cause the concentration of the agent to be too high in some areas of the regulating tank, while the concentration in other areas is insufficient, making it impossible to achieve uniform distribution of the chemical agent throughout the treatment tank. This not only affects the effective contact and reaction between the agent and pollutants in the wastewater, but also easily leads to large differences in local treatment effects, affecting the overall treatment efficiency and water quality compliance rate.

[0007] Because the chemical agents are not evenly dispersed, they do not fully contact the target substances in the wastewater, which limits the reaction rate, prolongs the treatment time, and increases energy consumption. In the long-term operation process, the increased energy consumption and agent waste increase the operating costs. At the same time, the insufficient reaction leads to agent residues, which pose a potential threat to the environment.

[0008] In order to solve the problems of uneven reagent distribution and insufficient reaction, stirring equipment is often used in the prior art to enhance the mixing effect. However, the introduction of stirring equipment not only increases the complexity and maintenance costs of the equipment, but also easily leads to increased energy consumption. In addition, the stirring process may cause the sludge to re-suspend, which has an adverse impact on subsequent treatment steps.

[0009] Therefore, the present invention proposes a wastewater treatment device and method based on the production of oil well cement fluid loss additive to solve the above problems. Summary of the Invention

[0010] In response to the deficiencies in the prior art, the present invention provides a wastewater treatment device and method based on the production of oil well cement fluid loss additives, which solves the problem that the current method of adding wastewater treatment agents is to directly inject them into the wastewater regulating tank at a single point or a few points. This method easily causes the local concentration of the wastewater treatment agent in the regulating tank to be too high, while the concentration in other areas is insufficient, and it is impossible to achieve uniform distribution of the wastewater treatment agent in the entire treatment tank. This not only affects the effective contact and reaction between the agent and the pollutants in the wastewater, but also easily leads to large differences in local treatment effects, affecting the overall treatment rate of the wastewater. After the reaction rate is limited, not only the treatment time is extended and energy consumption is increased, but the insufficient reaction is also likely to lead to agent residues, posing a potential threat to the environment.

[0011] To achieve the above objectives, the present invention is implemented through the following technical solutions: a wastewater treatment device based on the production of oil well cement fluid loss additives, including a wastewater treatment tank and a regulating tank, and also including:

[0012] A chemical agent application mechanism is provided inside the regulating tank and is used to input a preset amount of iron salt dephosphorization agent and flocculant into the wastewater and fully mix the iron salt dephosphorization agent, flocculant and wastewater;

[0013] The chemical agent application mechanism includes an iron salt dephosphorus agent input pipe and a flocculant input pipe arranged vertically from top to bottom. A plurality of drainage ports are evenly opened on the opposite side walls of the iron salt dephosphorus agent input pipe and the flocculant input pipe. A chemical agent uniform distribution mechanism for spraying the iron salt dephosphorus agent and the flocculant is commonly provided in the two drainage ports at relative positions. The chemical agent uniform distribution mechanism automatically expands the spraying range of the iron salt dephosphorus agent and the flocculant while spraying the iron salt dephosphorus agent and the flocculant, and completes the stirring and mixing of the wastewater and the iron salt dephosphorus agent and the flocculant.

[0014] Furthermore, it also includes:

[0015] Anaerobic tank, which hydrolyzes and acidifies organic matter through the action of anaerobic bacteria, creating conditions for subsequent aerobic treatment;

[0016] Aerobic tanks, which use aerobic microorganisms to digest and degrade organic matter in wastewater under aerobic conditions;

[0017] Sludge sedimentation tank, which uses gravity to settle suspended solid particles in wastewater to the bottom of the tank, completing solid-liquid separation and further purifying the water quality;

[0018] The clear water tank further filters and processes the water after solid-liquid separation through a membrane bioreactor to form clean water that meets the discharge standards.

[0019] Furthermore, the agent distribution mechanism includes a plurality of flocculant distribution components for spraying flocculants that are vertically and detachably arranged on the top of the flocculant inlet pipe, and an iron salt dephosphorus agent distribution component for spraying iron salt dephosphorus agent that is detachably arranged at the bottom of the iron salt dephosphorus agent inlet pipe and at a position relative to each flocculant distribution component.

[0020] Furthermore, the flocculant uniform distribution assembly includes a threaded tube detachably arranged in the top drain port of the flocculant inlet pipe, and an output pipe is sealed and rotatably arranged on the top of the threaded tube. Drive blocks are fixedly arranged on both sides of the top of the output pipe for driving the iron salt dephosphorization agent uniform distribution assembly to complete the operation of spraying the iron salt dephosphorization agent. A plurality of receiving grooves are evenly provided on the side wall of the output pipe, and a flocculant spray arm assembly for increasing the flocculant spraying range is movably provided inside each of the receiving grooves. Avoidance grooves are provided on both sides of the inner wall of the receiving groove, and a wedge block is fixedly provided on the inner wall of one of the avoidance grooves. A plurality of unblocking steel needles are fixedly provided on the side of the inner wall of the receiving groove close to the other avoidance groove. The wedge block and the unblocking steel needles are both used to cooperate to complete the anti-blocking cleaning operation of the flocculant spray arm assembly.

[0021] Furthermore, the flocculant spraying arm assembly includes a liquid medicine delivery pipe 1 which is arranged inside the storage tank by rotating through a rotating shaft. A spoiler for disturbing wastewater, flocculant and iron salt dephosphorus agent is fixedly arranged on the top of the liquid medicine delivery pipe 1. A plurality of nozzles 1 connected to the interior of the liquid medicine delivery pipe 1 are evenly fixedly arranged on the bottom of the liquid medicine delivery pipe 1, and a plurality of nozzles 2 are also evenly fixedly arranged on the side wall of the liquid medicine delivery pipe 1. The nozzles 1 and 2 are both used to spray the flocculant in the liquid medicine delivery pipe 1 into the regulating tank, and each of the nozzles 2 is provided with a dredging component for removing foreign matter therein.

[0022] Furthermore, the dredging component includes a mounting bracket fixedly mounted on the inner wall of the liquid medicine delivery tube and a dredging steel needle 1 slidingly passing through the mounting bracket, the liquid medicine delivery tube 1 and one of the nozzles 2. A spring limiting ring is provided on the outer wall of the dredging steel needle 1 and located inside the mounting bracket, and a spring 1 is provided on the outer wall of the dredging steel needle 1 and located in the sliding bracket between the mounting bracket and the spring limiting ring. When the end of the dredging steel needle 1 away from the nozzle 2 is not subject to external force, the dredging steel needle 1 is located outside the nozzle 2, and the flocculant can be output through the nozzle 2.

[0023] Furthermore, the iron salt dephosphorus agent uniform distribution component includes a liquid distribution cylinder that is detachably arranged in the drain port at the bottom of the iron salt dephosphorus agent input pipe, and a plurality of liquid delivery pipes 2 are evenly fixedly arranged at the bottom of the liquid distribution cylinder, which are used to disperse and output the iron salt dephosphorus agent inside the liquid distribution cylinder. A plurality of nozzles 3 are fixedly arranged at the bottom of each of the liquid delivery pipes 2, and a plurality of spray holes are evenly opened on the outer wall of the nozzle 3. A cleaning component is provided at the bottom of the liquid distribution cylinder for cleaning the outer wall of the nozzle 3.

[0024] Furthermore, the cleaning component includes a cylinder fixedly arranged at the bottom of the liquid distributing cylinder and a piston slidably arranged inside the cylinder, a spring 2 is arranged inside the cylinder and above the piston, a lifting rod is fixedly arranged at the bottom of the piston, the lifting rod slides through the cylinder and is fixedly provided with a cross plate, spherical bumps are fixedly provided on both sides of the bottom of the cross plate, a plurality of support arms corresponding to the position of the liquid delivery pipe 2 are fixedly provided on the outer wall of the lifting rod and located on the outside of the cylinder, a scraper is fixedly provided at one end of each of the support arms, and through holes that are evenly opened on the top of the scraper are adapted to the outer diameter of the nozzle 3, and each through hole is slidably sleeved on the outer wall of the nozzle 3 at the corresponding position. When the cleaning component is not subjected to external force, the through hole completely seals the spray hole on the outer wall of the nozzle 3 at the corresponding position.

[0025] The present invention also discloses a wastewater treatment method based on the production of oil well cement fluid loss additive, and a wastewater treatment device based on the production of oil well cement fluid loss additive. The method comprises the following steps:

[0026] Step 1: Wastewater is discharged into the regulating tank. Since the chemical agent application mechanism is connected to the external flocculant supply equipment and the iron salt dephosphorization agent supply equipment, a preset amount of flocculant and iron salt dephosphorization agent is sprayed into the regulating tank through the chemical agent application mechanism;

[0027] Step 2: Using a water pump, the wastewater after preliminary treatment in the regulating tank is input into the anaerobic tank to hydrolyze and acidify the organic matter and remove the organic matter in the wastewater;

[0028] Step 3: The wastewater after treatment in the anaerobic tank flows into the aerobic tank to quickly decompose the organic matter;

[0029] Step 4: The wastewater flowing into the sludge sedimentation tank gradually settles the suspended solids under the action of gravity, and the sediment is re-input into the anaerobic tank for further treatment through the sludge pump;

[0030] Step 5: Use a water pump to pump the supernatant above the sludge sedimentation tank into the clean water tank to form clean water that meets the discharge standards and discharge it through the clean water outlet.

[0031] The present invention provides a wastewater treatment device and method based on the production of oil well cement fluid loss additives. Compared with the existing technology, it has the following advantages:

[0032] 1. A wastewater treatment device and method based on the production of oil well cement fluid loss reducer, by setting a chemical agent application mechanism, can simultaneously input flocculant and iron salt dephosphorization agent into the regulating tank, thereby achieving the regulation of the phosphorus content of the wastewater and the preliminary flocculation treatment of the wastewater, thereby facilitating the purification of the wastewater in the subsequent treatment unit; secondly, a plurality of agent uniform distribution mechanisms are set in the chemical agent application mechanism. When the flocculant is applied, the flocculant can be sprayed out at high speed through the nozzles 1 and 2 of the plurality of flocculant spray arm assemblies, so that the flocculant spray arm assembly can be transformed from a vertical state to a horizontal state under the push of the reaction force, thereby increasing the spray radius of the flocculant, achieving the purpose of expanding the scope of application. The purpose of wide flocculant spraying range is to set up a smaller number of agent uniform distribution mechanisms to meet the purpose of applying wastewater treatment agents on a larger area at the same time, saving the purpose of multiple agent nozzles and reducing expenditure costs; furthermore, the reaction force when the flocculant is sprayed can provide thrust for the flocculant spray arm assembly, thereby achieving the effect of the output pipe rotating around the top of the threaded pipe. The flocculant spray arm assembly can disturb the surrounding wastewater during the rotation process, and achieve the effect of stirring and mixing the wastewater and flocculant. This process does not require a separate stirring device to complete the stirring operation while spraying the flocculant. Not only is the structure simple, but it also reduces the cost of setting up the stirring device.

[0033] 2. A wastewater treatment device and method based on the production of oil well cement fluid loss reducers can drive the two driving blocks on the top of the output pipe to push the spherical protrusions intermittently upward while rotating, thereby achieving the effect of pushing the cleaning component upward as a whole; secondly, the scraper moves up along the three surfaces of the nozzle, so that the spray holes on the three surfaces of the nozzle are exposed, and the iron salt dephosphorus agent can be sprayed, thereby achieving the purpose of automatically controlling the release of the iron salt dephosphorus agent while releasing the flocculant, and when the scraper moves back and forth up and down, the inner wall of the through hole can scrape off impurities attached to the three surfaces of the nozzle, thereby achieving the purpose of automatically cleaning the nozzle.

[0034] 3. A wastewater treatment device and method based on the production of oil well cement fluid loss reducer. By setting a dredging component in the flocculant spray arm assembly, when the liquid medicine delivery pipe 1 is changed from a horizontal state to a vertical state, the dredging steel needle 1 is pushed by the wedge plate and enters the nozzle 2 at the corresponding position, thereby being able to push out the impurities remaining in the nozzle 3 and achieve the purpose of automatically cleaning the nozzle 2; secondly, the dredging steel needle is located in the idle nozzle 3, which can prevent foreign matter from entering its interior, thereby ensuring that the nozzle 2 can be used normally in the next operation; furthermore, when the liquid medicine delivery pipe 1 is changed from a horizontal state to a vertical state, the dredging steel needle 2 can automatically enter the interior of the nozzle 1, and at the same time as cleaning the nozzle 1, it can complete the blocking of the nozzle 1, and achieve an effective anti-blocking protection effect for the nozzle. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the present invention;

[0036] Figure 2 Schematic diagram of the internal structure of the present invention;

[0037] Figure 3 This is a schematic diagram of the chemical agent application mechanism of the present invention;

[0038] Figure 4 This is a structural schematic diagram of the flocculant input pipe and the flocculant uniform distribution component in the assembled state of the present invention;

[0039] Figure 5 This is a structural schematic diagram of the assembly state of the iron salt dephosphorization agent input pipe and the iron salt dephosphorization agent uniform distribution component of the present invention;

[0040] Figure 6 This is a schematic diagram of the structure of the medicine uniform distribution mechanism of the present invention;

[0041] Figure 7 This is a structural schematic diagram of the flocculant uniform distribution component of the present invention in an expanded state;

[0042] Figure 8 For the present invention Figure 7 A schematic diagram of the enlarged structure of part A;

[0043] Figure 9 This is a schematic diagram of the structure of the flocculant uniform distribution component of the present invention in a storage state;

[0044] Figure 10 For the present invention Figure 9 A schematic diagram of the enlarged structure of part B in FIG;

[0045] Figure 11 This is a schematic diagram of the overall structure of the coagulant spray arm assembly of the present invention;

[0046] Figure 12Schematic diagram of the internal structure of the coagulant spray arm assembly of the present invention;

[0047] Figure 13 For the present invention Figure 12 Schematic diagram of the enlarged structure of part C;

[0048] Figure 14 This is a schematic diagram of the structure of the uniformly distributed components of the iron salt dephosphorization agent of the present invention in a decomposed state;

[0049] Figure 15 This is a schematic cross-sectional view of the cleaning component of the present invention;

[0050] Figure 16 For the present invention Figure 15 The enlarged structural diagram of part D in FIG.

[0051] Figure: 1, wastewater treatment tank; 2, wastewater inlet; 3, clean water outlet; 4, regulating tank; 5, anaerobic tank; 6, aerobic tank; 7, sludge sedimentation tank; 8, clear water tank; 9, chemical agent application mechanism; 91, iron salt dephosphorization agent inlet pipe; 92, flocculant inlet pipe; 93, chemical agent uniform distribution mechanism; 931, flocculant uniform distribution assembly; 9311, output pipe; 9312, drive block; 9313, storage tank; 9314, avoidance tank; 9315, flocculant spray arm assembly; 93151, liquid delivery pipe 1; 93152, spoiler; 93153, nozzle 1; 93154, nozzle 2; 9315 5. Mounting frame; 93156. Unclogging needle one; 93157. Spring limit ring; 93158. Spring one; 9316. Wedge block; 9317. Unclogging needle two; 9318. Threaded pipe; 932. Iron salt dephosphorization agent uniform distribution assembly; 9321. Liquid distribution cylinder; 9322. Liquid delivery pipe two; 9323. Nozzle three; 9324. Cleaning assembly; 93241. Cylinder body; 93242. Piston; 93243. Spring two; 93244. Lifting rod; 93245. Horizontal plate; 93246. Spherical bump; 93247. Support arm; 93248. Scraper; 93249. Through hole. DETAILED DESCRIPTION

[0052] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. 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 making creative efforts are within the scope of protection of the present invention.

[0053] like Figures 1 to 16 The present invention provides three technical solutions: a wastewater treatment device based on the production of oil well cement fluid loss additive, specifically including the following embodiments:

[0054] Example 1: A wastewater treatment device based on the production of oil well cement fluid loss additives, comprising:

[0055] A wastewater treatment tank 1 is provided with a wastewater inlet 2 at one end thereof, and a clean water outlet 3 for outputting clean water is provided on a side wall of the wastewater treatment tank 1 away from the wastewater inlet 2;

[0056] Regulating tank 4, which is used to regulate the amount of water entering the subsequent treatment unit, and simultaneously purify phosphorus in the wastewater and perform preliminary wastewater flocculation treatment;

[0057] A chemical agent application mechanism 9 is provided inside the regulating tank 4 and is used to input a preset amount of iron salt dephosphorization agent and flocculant into the wastewater and fully mix the iron salt dephosphorization agent, flocculant and wastewater;

[0058] The chemical application mechanism 9 includes an iron salt dephosphorization agent inlet pipe 91 and a flocculant inlet pipe 92, which are arranged vertically from top to bottom. Multiple drainage ports are evenly distributed on the opposing side walls of the iron salt dephosphorization agent inlet pipe 91 and the flocculant inlet pipe 92. A chemical distribution mechanism 93 for spraying the iron salt dephosphorization agent and flocculant is provided in the two opposite drainage ports. While spraying the iron salt dephosphorization agent and flocculant, the chemical distribution mechanism 93 automatically expands the spraying range of the iron salt dephosphorization agent and flocculant, and completes the mixing of the wastewater, the iron salt dephosphorization agent, and the flocculant. One end of the iron salt dephosphorization agent inlet pipe 91 and the flocculant inlet pipe 92 penetrate the wastewater treatment tank 1 and extend to the outside, and are respectively connected to the iron salt dephosphorization agent supply device and the flocculant supply device.

[0059] The wastewater treatment device further comprises:

[0060] The anaerobic tank 5 hydrolyzes and acidifies organic matter through the action of anaerobic bacteria, creating conditions for subsequent aerobic treatment; the anaerobic tank is provided with fillers, and anaerobic microorganisms attach to the fillers to form a biofilm. By setting up an anaerobic or low-oxygen environment, anaerobic microorganisms are promoted to decompose some organic matter.

[0061] The aerobic tank 6 utilizes aerobic microorganisms to digest and degrade organic matter in the wastewater under aerobic conditions. The aerobic tank is provided with fillers, on which aerobic microorganisms attach to form a biofilm. Sufficient oxygen is supplied to the aerobic tank 6 by an external fan, promoting the growth of aerobic microorganisms and the rapid decomposition of organic matter.

[0062] Sludge sedimentation tank 7, which uses gravity to settle suspended solid particles in the wastewater to the bottom of the tank, completing solid-liquid separation and further purifying the water quality;

[0063] The clear water tank 8 further filters and processes the water after solid-liquid separation through a membrane bioreactor to form clean water that meets the discharge standards.

[0064] Embodiment 2: The main difference between this embodiment and the first technical solution is that the agent uniform distribution mechanism 93 includes a plurality of flocculant uniform distribution components 931 for spraying flocculants, which are vertically and detachably arranged on the top of the flocculant input pipe 92. An iron salt dephosphorization agent uniform distribution component 932 for spraying iron salt dephosphorization agent is detachably arranged at the bottom of the iron salt dephosphorization agent input pipe 91 and at a position relative to each flocculant uniform distribution component 931. The flocculant uniform distribution component 931 includes a threaded tube 9318 detachably arranged in the top drain port of the flocculant input pipe 92. The top of the threaded tube 9318 is sealed and rotatably provided with an output tube 9311. Both sides of the top of the output tube 9311 are fixedly provided with drive blocks 9312 for driving the iron salt dephosphorization agent uniform distribution component 932 to complete the operation of spraying the iron salt dephosphorization agent. A plurality of receiving grooves 9313 are evenly arranged on the side wall of the output tube 9311. The interior of each receiving groove 9313 is movably provided. There is a flocculant spray arm assembly 9315 for increasing the flocculant spraying range. Avoidance grooves 9314 are provided on both sides of the inner wall of the storage groove 9313. A wedge block 9316 is fixedly provided on the inner wall of one of the avoidance grooves 9314. A plurality of unblocking steel needles 9317 are fixedly provided on the side of the inner wall of the storage groove 9313 close to the other avoidance groove 9314. The wedge block 9316 and the unblocking steel needles 9317 are both used to cooperate in completing the anti-blocking cleaning operation of the flocculant spray arm assembly 9315. One end of the flocculant spray arm assembly 9315 is connected to the inside of the output pipe 9311 through a hose, and the flocculant spray arm assembly 9315 can only rotate within the storage groove 9313 within a range of ninety degrees, that is, the flocculant spray arm assembly 9315 can only rotate ninety degrees from a vertical state to a horizontal state, that is, forming a perpendicular state with the output pipe 9311; the positions of the two drive blocks 9312 and the two spherical bumps 93246 are set correspondingly, and the two drive blocks 9312 are used to simultaneously push the two spherical bumps 93246 to move upward. The flocculant spraying arm assembly 9315 includes a liquid medicine delivery pipe 1 93151 which is rotatably arranged inside the receiving tank 9313 via a rotating shaft. A spoiler 93152 for disturbing wastewater, flocculant and iron salt dephosphorus agent is fixedly arranged on the top of the liquid medicine delivery pipe 1 93151. A plurality of nozzles 1 93153 connected to the interior of the liquid medicine delivery pipe 1 93151 are evenly fixedly arranged on the bottom of the liquid medicine delivery pipe 1 93151, and a plurality of nozzles 2 93154 are also evenly fixedly arranged on the side wall of the liquid medicine delivery pipe 1 93151. The nozzles 1 93153 and 2 93154 are both used to spray the flocculant in the liquid medicine delivery pipe 1 93151 into the regulating tank 4. A dredging assembly for removing foreign matter inside each nozzle 2 93154 is provided inside.A counterweight block is fixedly provided at one end of nozzle 1 93153 near nozzle 1 93153, so that it can be stored in the storage groove 9313 under the action of its own gravity when no flocculant or iron salt dephosphorus agent is sprayed, and the overall gravity of the flocculant spraying arm assembly 9315 can push the dredging steel needle 1 93156 to overcome the elastic force of spring 1 93158 and slide along the inclined surface of the wedge block 9316. The dredging assembly includes a mounting frame 93155 fixedly arranged on the inner wall of the liquid medicine delivery tube 93151 and a dredging steel needle 93156 slidingly passing through the mounting frame 93155, the liquid medicine delivery tube 93151 and one of the nozzles 2 93154. A spring limiting ring 93157 is provided on the outer wall of the dredging steel needle 93156 and located in the internal fixed sleeve of the mounting frame 93155. A spring 93158 is provided on the outer wall of the dredging steel needle 93156 and located in the sliding sleeve between the mounting frame 93155 and the spring limiting ring 93157. When the end of the dredging steel needle 93156 away from the nozzle 2 93154 is not subject to external force, the dredging steel needle 93156 is located outside the nozzle 2 93154, and the flocculant can be output through the nozzle 2 93154.

[0065] Embodiment 3: The main difference between this embodiment and the second technical solution is that the iron salt dephosphorus agent uniform distribution assembly 932 includes a liquid distribution cylinder 9321 that is detachably mounted within the bottom discharge port of the iron salt dephosphorus agent inlet pipe 91. Multiple liquid delivery pipes 9322 are evenly fixedly mounted at the bottom of the liquid distribution cylinder 9321 for distributing the iron salt dephosphorus agent within the liquid distribution cylinder 9321. Multiple nozzles 9323 are fixedly mounted at the bottom of each liquid delivery pipe 9322, each having multiple spray holes evenly disposed on the outer wall of each nozzle 9323. A cleaning assembly 9324 is provided at the bottom of the liquid distribution cylinder 9321 for cleaning the outer wall of each nozzle 9323. The iron salt dephosphorus agent flows into the liquid distribution cylinder 9321 through the iron salt dephosphorus agent inlet pipe 91, is distributed into the multiple liquid delivery pipes 9322 through the liquid distribution cylinder 9321, and is then sprayed out through the spray holes on the outer wall of each nozzle 9323. The cleaning assembly 9324 includes a cylinder 93241 fixedly arranged at the bottom of the liquid dispensing cylinder 9321 and a piston 93242 slidably arranged inside the cylinder 93241. A spring 2 93243 is arranged inside the cylinder 93241 and above the piston 93242. A lifting rod 93244 is fixedly arranged at the bottom of the piston 93242. The lifting rod 93244 slides through the cylinder 93241 and is fixedly provided with a horizontal plate 93245. Spherical bumps 93246 are fixedly provided on both sides of the bottom of the horizontal plate 93245. The outer wall of the lifting rod 93244 is fixed with a plurality of spherical bumps 93246. A plurality of support arms 93247 corresponding to the positions of the second medicine delivery pipe 9322 are fixedly provided on the outside of the cylinder 93241. A scraper 93248 is fixedly provided at one end of each support arm 93247. Through holes 93249 matching the outer diameter of the nozzle three 9323 are evenly opened on the top of the scraper 93248. Each through hole 93249 is slidably sleeved on the outer wall of the nozzle three 9323 at the corresponding position. When the cleaning component 9324 is not affected by external force, the through hole 93249 completely seals the spray hole on the outer wall of the nozzle three 9323 at the corresponding position.

[0066] The embodiment of the present invention further provides a method for treating wastewater from the production of oil well cement fluid loss additives, which is used in a wastewater treatment device from the production of oil well cement fluid loss additives. The method comprises the following steps:

[0067] Step 1. The wastewater after preliminary treatment in the grid tank is discharged into the regulating tank 4. Since the chemical agent application mechanism 9 is connected to the external flocculant supply equipment and the iron salt dephosphorization agent supply equipment, a preset amount of flocculant and iron salt dephosphorization agent is sprayed into the regulating tank 4 through the chemical agent application mechanism 9, and the mixing of the wastewater, flocculant and iron salt dephosphorization agent is completed, the phosphorus content of the wastewater is adjusted, and some impurities in the wastewater are flocculated at the same time, which is convenient for subsequent wastewater treatment; the specific process is: the external flocculant supply equipment inputs a preset amount of flocculant into the flocculant input pipe 92. Since a plurality of drainage ports are evenly opened on the top of the outer wall of the flocculant input pipe 92, a plurality of flocculant uniform distribution components 931 are correspondingly installed in one of the drainage ports in turn. Therefore, the flocculant is input into the flocculant uniform distribution component 931 at the corresponding position through the drainage ports at multiple positions;

[0068] The flocculant flows into the output pipe 9311 through the discharge port, and flows into the multiple flocculant spray arm assemblies 9315 in sequence through the hose connecting the flocculant spray arm assembly 9315 and the output pipe 9311. When the flocculant is sprayed from the nozzle 1 93153 located at the bottom of the flocculant spray arm assembly 9315, under the reaction force of the flocculant, the liquid medicine delivery pipe 1 93151 rotates around the rotating shaft, gradually changing from the initial vertical state to the horizontal state; after the liquid medicine delivery pipe 1 93151 is completely separated from the storage groove 9313, the dredging steel needle 1 93156 loses the wedge block 9316 The dredging needle 1 93156 is pushed by the spring 1 93158 and moves away from the nozzle 2 93154. The dredging needle 1 93156 is then separated from the nozzle 2 93154, and the flocculant is sprayed out of the nozzle 2 93154 through the exposed outlet. Since the plurality of nozzles 2 93154 are arranged on the side of the liquid medicine delivery pipe 1 93151, the thrust generated by the flocculant spraying out of the nozzle 2 93154 drives the liquid medicine delivery pipe 1 93151 to rotate, so that the output pipe 9311 rotates rapidly at the top of the threaded pipe 9318.

[0069] When the output pipe 9311 rotates, the two driving blocks 9312 rotate synchronously and rapidly. The two driving blocks 9312 continuously push the two spherical protrusions 93246 at the corresponding positions. The spherical protrusions 93246 drive the lifting rod 93244 to move upward synchronously. As the scraper 93248 moves upward, the nozzle 3 9323 is exposed from the through hole 93249, and the iron salt dephosphorization agent can be sprayed from the spray hole. Because the driving block 9312 and the spherical protrusion 93246 constantly meet intermittently, when the spherical protrusion 93246 is not affected by external force, the elastic force of the spring 2 93243 pushes the piston 93242 downward and reset, and the through hole 93249 once again blocks and seals the spray hole on the surface of the nozzle 3 9323, so that the iron salt dephosphorization agent cannot be sprayed out. During the reciprocating movement of the cleaning component 9324, the through hole 93249 scrapes off the sludge and other impurities attached to the outer wall of the nozzle 3 9323.

[0070] After the wastewater treatment is completed, flocculant and iron salt dephosphorization agent are no longer sprayed, and the liquid delivery pipe 93151 gradually moves into the receiving groove 9313 under the action of its own gravity and the gravity of the counterweight block set at its end. When the dredging steel needle 93156 enters the receiving groove 9313, the dredging steel needle 93156 contacts the inclined surface of the wedge block 9316 and moves toward the nozzle 2 93154 under the push of the inclined surface, and finally enters the nozzle 2 93154. At this time, the spring 1 93158 is compressed and elastically deformed, and multiple dredging steel needles 2 9317 are inserted into the nozzle 1 93153 at the corresponding position in turn to dredge the nozzle 1 93153.

[0071] Step 2: The wastewater after preliminary treatment in the regulating tank 4 is input into the anaerobic tank 5 by means of a water pump. The anaerobic tank 5 is set to an oxygen-free or low-oxygen environment, and fillers are placed inside. Anaerobic microorganisms attach to the fillers to form a biofilm, which promotes the anaerobic microorganisms to decompose some organic matter. The anaerobic bacteria hydrolyze and acidify the organic matter, thereby removing the organic matter in the wastewater.

[0072] Step 3: The wastewater treated in the anaerobic tank 5 flows into the aerobic tank 6. The aerobic tank 6 is provided with fillers. Aerobic microorganisms attach to the fillers to form a biofilm. The aeration device is used to provide sufficient oxygen to the aerobic tank 6. The aerobic microorganisms reproduce rapidly in the aerobic environment and decompose organic matter rapidly.

[0073] Step 4: The wastewater flowing into the sludge sedimentation tank 7 is gradually settled under the action of gravity. The impurities settled at the bottom of the sludge sedimentation tank 7 form sludge, and the precipitate is re-input into the anaerobic tank 5 for further treatment through the sludge pump;

[0074] Step 5: Use a water pump to pump the supernatant above the sludge sedimentation tank 7 into the clean water tank 8. The water after solid-liquid separation is further filtered and processed by the membrane bioreactor to form clean water that meets the discharge standards and is discharged through the clean water outlet 3.

[0075] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0076] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A wastewater treatment device based on the production of oil well cement fluid loss additives, including a wastewater treatment tank and a regulating tank, characterized by: Also includes: A chemical agent application mechanism is provided inside the regulating tank and is used to input a preset amount of iron salt dephosphorization agent and flocculant into the wastewater; The chemical agent application mechanism includes an iron salt dephosphorization agent input pipe and a flocculant input pipe vertically arranged from top to bottom, and multiple drainage ports are evenly opened on the opposite side walls of the iron salt dephosphorization agent input pipe and the flocculant input pipe. A chemical uniform distribution mechanism for spraying the iron salt dephosphorization agent and the flocculant is commonly provided in the two drainage ports at opposite positions; The agent uniform distribution mechanism includes a plurality of flocculant uniform distribution components for spraying flocculants, which are vertically and detachably arranged on the top of the flocculant inlet pipe; an iron salt dephosphorization agent uniform distribution component for spraying iron salt dephosphorization agent is detachably arranged at the bottom of the iron salt dephosphorization agent inlet pipe and at a position relative to each flocculant uniform distribution component; The flocculant uniform distribution assembly includes a threaded tube detachably arranged in the top drain port of the flocculant input pipe, an output pipe is sealed and rotatably arranged on the top of the threaded tube, and driving blocks are fixedly arranged on both sides of the top of the output pipe for driving the iron salt dephosphorization agent uniform distribution assembly to complete the operation of spraying the iron salt dephosphorization agent, a plurality of receiving grooves are evenly provided on the side wall of the output pipe, and a flocculant spraying arm assembly for increasing the spraying range of the flocculant is movably provided inside each of the receiving grooves, and avoidance grooves are provided on both sides of the inner wall of the receiving groove, a wedge block is fixedly provided on the inner wall of one of the avoidance grooves, and a plurality of dredging steel needles are fixedly provided on the side of the inner wall of the receiving groove close to the other avoidance groove, and the wedge block and the dredging steel needles are both used to cooperate to complete the anti-blocking cleaning operation of the flocculant spraying arm assembly; The flocculant spraying arm assembly includes a liquid medicine delivery pipe 1 that is rotatably arranged inside the storage tank via a rotating shaft, a plurality of nozzles 1 that are evenly fixedly arranged on the bottom of the liquid medicine delivery pipe 1 and communicated with the interior thereof, and a plurality of nozzles 2 that are evenly fixedly arranged on the side wall of the liquid medicine delivery pipe 1, the nozzles 1 and 2 being both used to spray the flocculant in the liquid medicine delivery pipe 1 into the regulating tank, and a dredging assembly for removing foreign matter therein is provided inside each of the nozzles 2; When applying flocculant, the flocculant can be sprayed out at high speed through nozzle 1 and nozzle 2 of multiple flocculant spray arm assemblies, so that the flocculant spray arm assembly can be transformed from a vertical state to a horizontal state under the push of the reaction force. The reaction force when the flocculant is sprayed can provide thrust for the flocculant spray arm assembly, thereby achieving the effect of the output pipe rotating around the top of the threaded pipe. When nozzle 1 is transformed from a horizontal state to a vertical state in the liquid delivery pipe 1, the dredging steel needle 2 can automatically enter the interior of nozzle 1.

2. The wastewater treatment device based on the production of oil well cement fluid loss additive according to claim 1, characterized in that: Also includes: Anaerobic tank, which hydrolyzes and acidifies organic matter through the action of anaerobic bacteria, creating conditions for subsequent aerobic treatment; Aerobic tanks, which use aerobic microorganisms to digest and degrade organic matter in wastewater under aerobic conditions; Sludge sedimentation tank, which uses gravity to settle suspended solid particles in wastewater to the bottom of the tank, completing solid-liquid separation and further purifying the water quality; The clear water tank further filters and processes the water after solid-liquid separation through a membrane bioreactor to form clean water that meets the discharge standards.

3. The wastewater treatment device based on the production of oil well cement fluid loss additive according to claim 1, characterized in that: The dredging component includes a mounting bracket fixedly arranged on the inner wall of the liquid medicine delivery tube and a dredging steel needle 1 slidingly passing through the mounting bracket, the liquid medicine delivery tube 1 and one of the nozzles 2. A spring limiting ring is provided on the outer wall of the dredging steel needle 1 and located in the internal fixed sleeve of the mounting bracket. A spring 1 is provided on the outer wall of the dredging steel needle 1 and located in the sliding sleeve between the mounting bracket and the spring limiting ring. When the end of the dredging steel needle 1 away from the nozzle 2 is not subject to external force, the dredging steel needle 1 is located outside the nozzle 2, and the flocculant can be output through the nozzle 2.

4. The wastewater treatment device based on the production of oil well cement fluid loss additive according to claim 1, characterized in that: The iron salt dephosphorus agent uniform distribution component includes a liquid distribution cylinder that is detachably arranged in the drain port at the bottom of the iron salt dephosphorus agent input pipe. A plurality of liquid delivery pipes 2 are evenly and fixedly arranged at the bottom of the liquid distribution cylinder, which are used to disperse and output the iron salt dephosphorus agent inside the liquid distribution cylinder. A plurality of nozzles 3 are fixedly arranged at the bottom of each of the liquid delivery pipes 2, and a plurality of spray holes are evenly opened on the outer wall of the nozzle 3. A cleaning component is provided at the bottom of the liquid distribution cylinder, which is used to clean the outer wall of the nozzle 3.

5. The wastewater treatment device based on the production of oil well cement fluid loss additive according to claim 4, characterized in that: The cleaning component includes a cylinder fixedly arranged at the bottom of the liquid distributing cylinder and a piston slidably arranged inside the cylinder, a spring 2 is arranged inside the cylinder and above the piston, a lifting rod is fixedly arranged at the bottom of the piston, the lifting rod slides through the cylinder and is fixedly provided with a cross plate, spherical bumps are fixedly provided on both sides of the bottom of the cross plate, a plurality of support arms corresponding to the positions of the liquid delivery pipe 2 are fixedly provided on the outer wall of the lifting rod and located on the outside of the cylinder, a scraper is fixedly provided at one end of each of the support arms, and through holes that are evenly opened on the top of the scraper are adapted to the outer diameter of the nozzle 3, each through hole is slidably sleeved on the outer wall of the nozzle 3 at the corresponding position, and when the cleaning component is not subjected to external force, the through hole completely seals the spray hole on the outer wall of the nozzle 3 at the corresponding position.

6. A method for treating wastewater from the production of oil well cement fluid loss additives, characterized by: The wastewater treatment device for oil well cement fluid loss additive production according to any one of claims 1 to 5 comprises the following steps: Step 1: Wastewater is discharged into the regulating tank. Since the chemical agent application mechanism is connected to the external flocculant supply equipment and the iron salt dephosphorization agent supply equipment, a preset amount of flocculant and iron salt dephosphorization agent is sprayed into the regulating tank through the chemical agent application mechanism; Step 2: Using a water pump, the wastewater after preliminary treatment in the regulating tank is input into the anaerobic tank to hydrolyze and acidify the organic matter and remove the organic matter in the wastewater; Step 3: The wastewater after treatment in the anaerobic tank flows into the aerobic tank to quickly decompose the organic matter; Step 4: The wastewater flowing into the sludge sedimentation tank gradually settles the suspended solids under the action of gravity, and the sediment is re-input into the anaerobic tank for further treatment through the sludge pump; Step 5: Use a water pump to pump the supernatant above the sludge sedimentation tank into the clean water tank to form clean water that meets the discharge standards and discharge it through the clean water outlet.

Images