A sewage treatment device and its application in the production of pretilachlor pesticide

Abstract

The present invention relates to the technical field of sewage treatment, and discloses a sewage treatment device and its application in the production of pretilachlor pesticide, comprising a stirring box and a sedimentation tank, wherein the stirring box is internally divided into a first chamber and a second chamber, and further comprising an agitator, an observation tube, a transfer assembly, a heat pipe and a drive assembly. The present invention is provided with an agitator, an observation tube, a transfer assembly, a heat pipe and a drive assembly, and uses the transfer assembly and the observation tube to transport sewage into the observation tube, which is conducive to real-time monitoring of the sewage state during the sewage flocculation process. When the flocculation effect is poor, the heat pipe can be heated by the drive assembly, and the reciprocating floating of the heat pipe can be controlled at the same time, so that the sewage temperature and the diffusion effect of the flocculant in the sewage can be increased, and the flocculation effect can be improved while the cause is preliminarily investigated, so that the operator can more accurately judge the cause and take corresponding measures, and avoid the effect or efficiency of sewage treatment affected by misoperation.

Description

Technical Field

[0001] The invention relates to the technical field of sewage treatment, in particular to a sewage treatment device and application thereof in the production of pretilachlor pesticide. Background Art

[0002] Pretilachlor is a highly selective herbicide for rice fields. The synthesis of pretilachlor requires the initial reaction of urea and propionyl hypochlorite, followed by neutralization, crystallization filtration and drying. Pretilachlor is similar to other pesticide production, and a large amount of sewage is generated during the synthesis process. Due to the wide variety of pesticides, the water quality of pesticide wastewater is complex. The main characteristics are high concentration of pollutants, COD can reach tens of thousands of milligrams per liter; high toxicity, in addition to pesticides and intermediates, the wastewater also contains phenols, arsenic, mercury and other harmful substances and many substances that are difficult to biodegrade; there is a bad smell, which is irritating to the human respiratory tract and mucous membranes; the water quality and water volume are unstable. The main methods for treating pesticide wastewater are distillation, extraction, adsorption, precipitation, etc. Common pesticide wastewater needs to be pretreated biochemically to reduce the COD content, and then the pretreated wastewater is added with flocculants for precipitation, and then filtered through a filtration system to obtain waste liquid and recyclable water. The waste liquid also needs to be incinerated or evaporated.

[0003] At present, pesticide wastewater is prone to poor flocculation effect during the flocculation and sedimentation stage. There are many reasons for the poor flocculation effect, including the influence of native water quality, problems with the process flow, improper control of operating conditions, etc. Specifically, it is difficult for operators to determine the reasons based on experience alone. As a result, they generally use the method of increasing flocculants to improve the flocculation effect, which can easily lead to excessive addition of flocculants. Excessive flocculants can easily cause the sediment to float, making it difficult to deal with later.

[0004] Currently, no effective solution has been proposed for the problems in the related technologies. Summary of the invention

[0005] In view of the shortcomings of the prior art, the present invention provides a sewage treatment device and its application in the production of pretilachlor pesticide, which has the advantages of practicality, high efficiency, high degree of automation, etc., and solves the problem that it is difficult to quickly determine the cause when the flocculation effect of the existing pesticide sewage treatment equipment is poor, and the problem that it is easy to cause incorrect treatment based on the operator's experience, thereby affecting the sewage treatment effect or efficiency.

[0006] In order to solve the above technical problems, the present invention provides the following technical solutions: a sewage treatment device, comprising a stirring tank and a sedimentation tank, wherein the stirring tank is internally divided into a first chamber and a second chamber, and further comprises a stirrer, an observation tube, a transfer assembly, a heat conduction pipe and a drive assembly;

[0007] The agitator is installed in the first chamber, and is used for preliminarily mixing sewage and flocculant;

[0008] The observation tube is installed outside the stirring box, and the observation tube is used to observe the flocculation effect in the first chamber;

[0009] The transfer assembly is installed on the mixing tank, and is used to transfer the sewage in the first chamber to the second chamber and transfer the sewage in the first chamber to the observation tube;

[0010] The heat conducting pipe is installed in the first chamber, and fins arranged obliquely are fixed on the heat conducting pipe. The heat conducting pipe is used to heat the sewage, and the fins are used to guide the sewage in stirring;

[0011] The driving assembly is installed outside the mixing box, the driving assembly is connected to the heat pipe in a transmission manner, and the driving assembly is used to transport heat source into the heat pipe and drive the heat pipe and the fin to float back and forth;

[0012] The agitator in the first chamber operates to perform sewage flocculation treatment. When the transfer component is in operation, the flocculated sewage is transported to the observation tube. When it is monitored that the flocculation effect is not good, the driving component is operated. The driving component transports heat source to the heat pipe while driving the heat pipe and fins to float back and forth, forcing the sewage to be evenly heated and flow irregularly under the action of the fins.

[0013] Preferably, the transfer component includes a water pump, which is fixed on the top of the mixing box. An input pipe is fixed to the input end of the water pump, and the input pipe extends into the first chamber. A main output pipe is fixed to the output end of the water pump, and the main output pipe extends to the second chamber. A first valve is installed on the main output pipe.

[0014] Preferably, the main output tube is fixedly connected to a secondary output tube, a second valve is installed on the secondary output tube, one end of the secondary output tube is fixedly connected to the bottom end of the observation tube, the top end of the observation tube is fixedly connected to a reflux tube, and the reflux tube extends into the first chamber.

[0015] Preferably, a slide rail is fixedly connected to the inner wall of the first chamber, a rack is slidably connected to the slide rail, a ring is fixed to the rack, the ring is fixedly sleeved on the bottom end of the input pipe, the top end of the rack extends to the top of the mixing box, a first motor is fixed to the top wall of the mixing box, a gear is fixed to the output shaft of the first motor, and the gear is meshed with the rack.

[0016] Preferably, the agitator includes a second motor and a support rod, the support rod is arranged inside the first chamber and fixedly connected to the inner wall of the first chamber, the second motor is fixed to the top of the mixing box, the output shaft of the second motor is fixed with a base shaft, the base shaft passes through the support rod and is rotatably connected to the support rod, and a stirring blade is fixed to the bottom end of the base shaft.

[0017] Preferably, the heat-conducting pipes are arranged in two groups, and the two groups of heat-conducting pipes are distributed in a circular array around the base shaft. The heat-conducting pipes include an air intake pipe portion, a heat dissipation pipe portion and an exhaust pipe portion that are interconnected. The fins are arranged in a plurality and are distributed on the heat dissipation pipe portion. The heat-conducting pipes also include a vertical rod, which is fixedly connected to the air intake pipe portion and the exhaust pipe portion. The top ends of the vertical rods, the air intake pipe portion and the exhaust pipe portion all extend to the top of the mixing box, and the bottom ends of the vertical rods are movably connected to the straight rods.

[0018] Preferably, the driving assembly includes a steam generator and a booster pump fixed on the top of the mixing box, the output end of the steam generator and the air inlet end of the booster pump are fixedly connected with a first air pipe, the air delivery end of the booster pump is fixedly connected with a second air pipe, a hollow cylinder is fixed in the middle of the second air pipe, a third valve is installed on the second air pipe, two connecting pipes are fixedly connected to the second air pipe, and the connecting pipes are fixedly connected to the end of the air inlet pipe.

[0019] Preferably, the driving assembly also includes two mounting plates fixed on the top of the mixing box, a crank shaft is arranged between the two mounting plates, two ends of the crank shaft are rotatably connected to the two mounting plates respectively, two push rods are movably connected to the crank shaft, the bottom ends of the push rods are hinged to the top ends of the vertical rods, a worm gear is fixed to the end of the crank shaft, a worm is meshed with the edge of the worm gear, the worm is mounted on the surface of the mounting plate through a bearing seat, one end of the worm gear passes through the hollow cylinder and is fixed with an impeller.

[0020] Preferably, the second air pipe is also fixedly connected to a branch pipe, and a fourth valve is installed on the branch pipe.

[0021] Compared with the prior art, the present invention provides a sewage treatment device and its application in the production of pretilachlor pesticide, which has the following beneficial effects:

[0022] 1. This type of sewage treatment device and its application in the production of pretilachlor pesticides, by arranging an agitator, an observation tube, a transfer component, a heat pipe and a drive component, uses the transfer component and the observation tube to transport sewage to the observation tube, which is conducive to real-time monitoring of the sewage state during the sewage flocculation process. When the flocculation effect is poor, the heat pipe can be heated by the drive component, and the reciprocating floating of the heat pipe can be controlled at the same time, which can increase the sewage temperature and the diffusion effect of the flocculant in the sewage. While conducting a preliminary investigation of the cause, the flocculation effect can also be improved, which can facilitate the operator to more accurately judge the cause and take corresponding measures to avoid misoperation affecting the effect or efficiency of sewage treatment.

[0023] 2. This type of sewage treatment device and its application in the production of pretilachlor pesticide can drive the rack to slide vertically by starting the first motor, thereby driving the bottom end of the input pipe to move to different heights in the first chamber, which is conducive to cooperating with the transfer component to transport sewage from different water layers to the observation tube, making it convenient to observe the sewage in each water layer, and more conducive to the staff to control the flocculation quality.

[0024] 3. This type of sewage treatment device and its application in the production of pretilachlor pesticides are conducive to the direct discharge of steam by setting a branch pipe and a fourth valve, which facilitates the regulation of sewage heating temperature and avoids excessive heating of sewage after steam enters the heat transfer pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a three-dimensional structural schematic diagram of a sewage treatment device of the present invention;

[0026] Figure 2 It is a three-dimensional structural schematic diagram of the stirring box of the present invention;

[0027] Figure 3 It is a schematic diagram of the internal structure of the first chamber of the present invention;

[0028] Figure 4 It is a schematic diagram of the structure of the heat pipe of the present invention;

[0029] Figure 5 It is a structural schematic diagram of the driving assembly of the present invention;

[0030] Figure 6 For the present invention Figure 5 A magnified view of part A;

[0031] Figure 7 It is a schematic diagram of the installation structure of the hollow cylinder of the present invention;

[0032] Figure 8 For the present invention Figure 7 Enlarged view of part B.

[0033] In the figure: 1, stirring box; 2, sedimentation tank; 3, first chamber; 4, second chamber; 5, stirrer; 51, second motor; 52, support rod; 53, base shaft; 54, stirring blade; 6, observation tube; 7, transfer assembly; 701, water pump; 702, input pipe; 703, main output pipe; 704, first valve; 705, auxiliary output pipe; 706, second valve; 707, return pipe; 8, heat conduction pipe; 81, air inlet pipe; 82, heat dissipation pipe; 83, exhaust pipe; 84, vertical rod; 9, Driving assembly; 901, steam generator; 902, booster pump; 903, first air pipe; 904, second air pipe; 905, hollow cylinder; 906, third valve; 907, connecting pipe; 908, mounting plate; 909, crank shaft; 910, push rod; 911, worm gear; 912, worm; 913, bearing seat; 914, impeller; 915, branch pipe; 916, fourth valve; 10, fin; 11, slide rail; 12, rack; 13, collar; 14, first motor; 15, gear. DETAILED DESCRIPTION

[0034] 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.

[0035] As introduced in the background technology, there are deficiencies in the prior art. In order to solve the above technical problems, the present application proposes a sewage treatment device and its application in the production of pretilachlor pesticide.

[0036] See also Figure 1-Figure 2 , a sewage treatment device, comprising a mixing tank 1 and a sedimentation tank 2, wherein the mixing tank 1 is internally divided into a first chamber 3 and a second chamber 4, and further comprising a stirrer 5, an observation tube 6, a transfer assembly 7, a heat pipe 8 and a drive assembly 9;

[0037] The agitator 5 is installed in the first chamber 3, and the agitator 5 is used for preliminarily mixing sewage and flocculant;

[0038] The observation tube 6 is installed outside the stirring box 1, and the observation tube 6 is used to observe the flocculation effect in the first chamber 3;

[0039] The transfer assembly 7 is installed on the mixing box 1, and the transfer assembly 7 is used to transfer the sewage in the first chamber 3 to the second chamber 4 and transfer the sewage in the first chamber 3 to the observation tube 6;

[0040] The heat conducting pipe 8 is installed in the first chamber 3, and the heat conducting pipe 8 is fixed with an inclined fin 10. The heat conducting pipe 8 is used to heat the sewage, and the fin 10 is used to guide the sewage in stirring;

[0041] The driving assembly 9 is installed outside the mixing box 1, and the driving assembly 9 is connected to the heat pipe 8 in a transmission manner. The driving assembly 9 is used to transport heat source into the heat pipe 8 and drive the heat pipe 8 and the fin 10 to float back and forth;

[0042] The agitator 5 in the first chamber 3 operates to perform sewage flocculation treatment. When the transfer component 7 operates, the flocculated sewage is transported to the observation tube 6. When the flocculation effect is not good, the drive component 9 is operated. The drive component 9 transports the heat source to the heat pipe 8 and drives the heat pipe 8 and the fins 10 to float back and forth, forcing the sewage to be evenly heated and irregularly flow under the action of the fins 10;

[0043] The mixing box 1 is provided with a partition plate, which divides the mixing box 1 into a first chamber 3 and a second chamber 4. The sewage is flocculated and initially mixed in the first chamber 3, and then discharged into the second chamber 4 for further stirring, and finally discharged into the sedimentation tank 2 for solid-liquid separation. The side wall of the observation tube 6 is provided with a transparent glass material for observing the state of the sewage during flocculation.

[0044] When in use, add reagents such as flocculants to the sewage in the first chamber 3, start the agitator 5 to mix the flocculants and the sewage, start the transfer component 7 after a period of time, and after the transfer component 7 is running, the sewage in the first chamber 3 is transported to the observation tube 6, so that the state of the sewage can be monitored. If the sewage state shows that the flocculation is insufficient, the cause is investigated, and the drive component 9 is started. The drive component 9 transports the heat source to the heat pipe 8 in the first chamber 3, so that the heat pipe 8 is heated, and the heat is dissipated to the sewage through the fins 10, so that the sewage temperature is appropriately increased. At the same time, the drive component 9 also drives the heat pipe 8 to float up and down, and then drives the fins 10 to float up and down. The fins 10 can change the flow of the sewage in the first chamber 3 and increase the diffusion of the flocculant in the sewage. Then the transfer component 7 is started again to monitor the state of the sewage in the observation tube 6. If the sewage meets the specifications, the sewage in the first chamber 3 is transported to the second chamber 4 through the transfer component 7 for subsequent purification. If the sewage does not meet the specifications, the flocculant is added and other methods are selected for regulation;

[0045] By arranging the agitator 5, the observation tube 6, the transfer assembly 7, the heat pipe 8 and the driving assembly 9, and utilizing the transfer assembly 7 and the observation tube 6 to transport the sewage into the observation tube 6, it is beneficial to monitor the sewage state in real time during the sewage flocculation process. When the flocculation effect is poor, the heat pipe 8 can be heated by the driving assembly 9, and the heat pipe 8 can be controlled to float back and forth at the same time, which can increase the sewage temperature and the diffusion effect of the flocculant in the sewage. While conducting a preliminary investigation of the cause, the flocculation effect can also be improved, thereby facilitating the operator to more accurately determine the cause and take corresponding measures to avoid misoperation affecting the effect or efficiency of sewage treatment.

[0046] Further, see Figure 2-Figure 3 The transfer assembly 7 includes a water pump 701, which is fixed on the top of the mixing box 1. An input pipe 702 is fixed on the input end of the water pump 701, and the input pipe 702 extends into the first chamber 3. A main output pipe 703 is fixed on the output end of the water pump 701, and the main output pipe 703 extends to the second chamber 4. A first valve 704 is installed on the main output pipe 703, and a secondary output pipe 705 is fixedly connected to the main output pipe 703, and a second valve 706 is installed on the secondary output pipe 705. One end of the secondary output pipe 705 is fixedly connected to the bottom end of the observation tube 6, and a reflux pipe 707 is fixedly connected to the top of the observation tube 6, and the reflux pipe 707 extends into the first chamber 3;

[0047] The input pipe 702 is preferably set as a hose, and the connection point between the auxiliary output pipe 705 and the main output pipe 703 is set between the first valve 704 and the water pump 701. When in use, if it is necessary to monitor the flocculation state of the sewage inside the first chamber 3, the first valve 704 is closed and the second valve 706 is opened. At this time, when the water pump 701 is started, the sewage enters the observation tube 6 through the input pipe 702, the main output pipe 703 and the auxiliary output pipe 705, and then flows back into the first chamber 3 through the return pipe 707; if it is necessary to discharge the sewage inside the first chamber 3 into the second chamber 4, the second valve 706 is closed and the first valve 704 is opened. At this time, when the water pump 701 is started, the sewage is directly discharged into the second chamber 4 through the input pipe 702 and the main output pipe 703;

[0048] By setting up the transfer component 7 and using the water pump 701 to transport the sewage to the observation tube 6, it is convenient to monitor the sewage state during flocculation treatment, which is helpful for the staff to judge the flocculation effect. The water pump 701 can also transport the sewage to the second chamber 4, so that the sewage that meets the preliminary flocculation requirements can be discharged into the second chamber 4 for further treatment.

[0049] Further, see Figure 3The inner wall of the first chamber 3 is fixedly connected with a slide rail 11, and a rack 12 is slidably connected to the slide rail 11. A collar 13 is fixed to the rack 12, and the collar 13 is fixedly sleeved on the bottom end of the input pipe 702. The top of the rack 12 extends to the top of the mixing box 1. A first motor 14 is fixed to the top wall of the mixing box 1. A gear 15 is fixed to the output shaft of the first motor 14, and the gear 15 is meshed with the rack 12;

[0050] The slide rail 11 is vertically arranged. When in use, starting the first motor 14 can drive the gear 15 to rotate. When the gear 15 rotates, the rack 12 is driven to move vertically along the slide rail 11, thereby driving the collar 13 to move. The movement of the collar 13 drives the bottom end of the input tube 702 to move.

[0051] By setting the first motor 14, the first motor 14 can drive the bottom end of the input pipe 702 to move vertically when it is running, so as to absorb the sewage from different water layers inside the first chamber 3, which is beneficial to transport the sewage from different water layers to the observation tube 6, making it convenient for operators to monitor the sewage from different water layers, and having stronger applicability.

[0052] Further, see Figure 3 The stirrer 5 includes a second motor 51 and a support rod 52, wherein the support rod 52 is disposed inside the first chamber 3 and fixedly connected to the inner wall of the first chamber 3, the second motor 51 is fixed to the top of the stirring box 1, the output shaft of the second motor 51 is fixed with a base shaft 53, the base shaft 53 penetrates the support rod 52 and is rotatably connected to the support rod 52, and a stirring blade 54 is fixed to the bottom end of the base shaft 53;

[0053] The base shaft 53 and the stirring blade 54 are preferably arranged at the center of the first chamber 3. After the flocculant is added to the sewage, the second motor 51 is started. The second motor 51 drives the base shaft 53 and the stirring blade 54 to rotate, thereby dispersing the flocculant.

[0054] By providing the stirrer 5 and driving the stirring blades 54 to rotate through the second motor 51, it is beneficial to disperse the flocculant so as to perform the initial flocculation work.

[0055] Further, see Figure 3-Figure 4The heat-conducting pipe 8 is provided in two groups, and the two groups of heat-conducting pipes 8 are distributed in a circular array around the base shaft 53. The heat-conducting pipe 8 includes an air intake pipe portion 81, a heat dissipation pipe portion 82 and an exhaust pipe portion 83 that are interconnected. The fins 10 are provided in a plurality and distributed on the heat dissipation pipe portion 82. The heat-conducting pipe 8 also includes a vertical rod 84, and the vertical rod 84 is fixedly connected to the air intake pipe portion 81 and the exhaust pipe portion 83. The top ends of the vertical rod 84, the air intake pipe portion 81 and the exhaust pipe portion 83 extend to the top of the mixing box 1, and the bottom end of the vertical rod 84 is movably plugged with the straight rod. The driving assembly 9 includes a steam generator 901 and a booster pump 902 fixed on the top of the mixing box 1, the output end of the steam generator 901 and the air inlet end of the booster pump 902 are fixedly connected with a first air pipe 903, the air delivery end of the booster pump 902 is fixedly connected with a second air pipe 904, a hollow cylinder 905 is fixed in the middle of the second air pipe 904, a third valve 906 is installed on the second air pipe 904, and two connecting pipes 907 are fixedly connected to the second air pipe 904, and the connecting pipe 907 is fixedly connected to the end of the air inlet pipe part 81;

[0056] The heat conducting pipe 8 is preferably made of copper or aluminum. The heat dissipation pipe portion 82 is configured to be a plurality of groups of equally spaced semicircular arcs connected end to end. The inclination direction of the fins 10 on the heat dissipation portion matches the direction in which the sewage is stirred by the agitator 5. The inclined fins 10 guide the flowing sewage so that the water flow not only flows clockwise or counterclockwise around the base axis 53 but also surges up and down alternately. The steam generator 901 and the booster pump 902 are both prior art and will not be described in detail. The two connecting pipes 907 are preferably configured as hoses.

[0057] When in use, the steam generator 901 and the booster pump 902 are started, the steam pressure is increased and enters the heat pipe 8 through the first air pipe 903, the hollow cylinder 905, the second air pipe 904 and the connecting pipe 907, and the heat of the steam is transferred to the sewage through the heat pipe 8 and the fins 10, thereby achieving heat exchange and heating the sewage;

[0058] By providing the driving assembly 9, the heating steam can be transported into the heat conduction pipe 8 and heat exchange can be achieved with the sewage, thereby achieving the effect of moderately heating the sewage, which is beneficial to improving the flocculation effect;

[0059] Further, see Figure 5-Figure 8The driving assembly 9 also includes two mounting plates 908 fixed on the top of the mixing box 1, a crankshaft 909 is arranged between the two mounting plates 908, two ends of the crankshaft 909 are rotatably connected to the two mounting plates 908 respectively, two push rods 910 are movably connected to the crankshaft 909, the bottom end of the push rod 910 is hinged to the top of the vertical rod 84, a worm gear 911 is fixed to the end of the crankshaft 909, a worm 912 is meshed with the edge of the worm gear 911, the worm 912 is mounted on the surface of the mounting plate 908 through a bearing seat 913, one end of the worm 912 passes through the hollow cylinder 905 and is fixed with an impeller 914;

[0060] Among them, two connecting rod journals are arranged on the crankshaft 909, one end of the push rod 910 is movably connected to the connecting rod journal, and two bearing seats 913 are arranged on the worm 912. The bearing seats 913 are connected to the worm 912 through bearings and fixed on the surface of the mounting plate 908;

[0061] When in use, when the high-pressure steam passes through the hollow cylinder 905, the air pressure drives the impeller 914 to rotate, and when the impeller 914 rotates, it drives the worm 912 to rotate, and when the worm 912 rotates, it drives the worm wheel 911 to rotate, and when the worm wheel 911 rotates, it drives the crankshaft 909 to rotate, and when the crankshaft 909 rotates, it pushes the push rod 910, and the bottom end of the push rod 910 drives the vertical rod 84 to move back and forth vertically, so that the entire heat pipe 8 floats back and forth vertically, thereby driving the fins 10 on the heat pipe 8 to float up and down, thereby aggravating the irregular flow of sewage, so that the sewage in the upper and lower layers in the first chamber 3 is more staggered and dispersed;

[0062] The driving assembly 9 can drive the heat pipe 8 and the fins 10 to move vertically back and forth, thereby guiding the sewage to flow irregularly, so that the sewage in different water layers is mixed more fully, which is beneficial to improving the dispersion effect of the flocculant and further improving the flocculation effect.

[0063] Further, see Figure 6-Figure 8 The second air pipe 904 is also fixedly connected to a branch pipe 915, and a fourth valve 916 is installed on the branch pipe 915;

[0064] The connection between the branch pipe 915 and the second air pipe 904 is arranged between the third valve 906 and the hollow cylinder 905. The third valve 906 is closed by default. When the driving assembly 9 is running, the sewage is heated. When the sewage temperature is too high, the third valve 906 is opened and the fourth valve 916 is closed, so that the steam is discharged from the branch pipe 915.

[0065] By providing the branch pipe 915 and the fourth valve 916, it is advantageous to discharge steam directly, which facilitates the regulation of sewage heating temperature and avoids excessive heating of sewage after steam enters the heat transfer pipe 8, which is beneficial to the sewage treatment process.

[0066] Working principle: When in use, add flocculants and other reagents to the sewage inside the first chamber 3, start the second motor 51, and the second motor 51 drives the base shaft 53 and the stirring blade 54 to rotate to mix the flocculant and the sewage. After a period of time, start the water pump 701, close the first valve 704 and open the second valve 706, and the sewage enters the observation tube 6 through the input pipe 702, the main output pipe 703 and the auxiliary output pipe 705, and then flows back into the first chamber 3 through the return pipe 707. The effect of the initial flocculation of the sewage is determined by monitoring the sewage state in the observation tube 6;

[0067] If the effect is not good, start the steam generator 901 and the booster pump 902, the steam pressure increases and enters the heat pipe 8 through the first air pipe 903, the hollow cylinder 905, the second air pipe 904 and the connecting pipe 907, and the heat of the steam is transferred to the sewage through the heat pipe 8 and the fins 10, thereby achieving heat exchange and heating the sewage. At the same time, when the high-pressure steam passes through the hollow cylinder 905, the air pressure drives the impeller 914 to rotate, and when the impeller 914 rotates, it drives the worm 912 to rotate, and the worm 912 rotates. When the worm gear 911 is in motion, it drives the crankshaft 909 to rotate. When the crankshaft 909 rotates, it pushes the push rod 910. The bottom end of the push rod 910 drives the vertical rod 84 to move back and forth vertically, so that the entire heat pipe 8 floats back and forth vertically, thereby driving the fins 10 on the heat pipe 8 to float up and down, thereby aggravating the irregular flow of sewage, so that the sewage in the upper and lower layers in the first chamber 3 is more staggered and dispersed. After improving the flocculation effect through these two methods, the state of the sewage is monitored again;

[0068] If the effect meets the standard, it can be discharged into the second chamber 4 for subsequent treatment, the second valve 706 is closed and the first valve 704 is opened. At this time, when the water pump 701 is started, the sewage is directly discharged into the second chamber 4 through the input pipe 702 and the main output pipe 703;

[0069] If the effect does not meet the standard, the staff will improve the flocculation state by adding flocculants or regulators;

[0070] By arranging the agitator 5, the observation tube 6, the transfer assembly 7, the heat pipe 8 and the driving assembly 9, and utilizing the transfer assembly 7 and the observation tube 6 to transport the sewage into the observation tube 6, it is beneficial to monitor the sewage state in real time during the sewage flocculation process. When the flocculation effect is poor, the heat pipe 8 can be heated by the driving assembly 9, and the heat pipe 8 can be controlled to float back and forth at the same time, which can increase the sewage temperature and the diffusion effect of the flocculant in the sewage. While conducting a preliminary investigation of the cause, the flocculation effect can also be improved, thereby facilitating the operator to more accurately determine the cause and take corresponding measures to avoid misoperation affecting the effect or efficiency of sewage treatment.

[0071] While the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that many changes, modifications, substitutions and variations can be made to the embodiments without departing from the principles and spirit of the invention.

Claims

1. A sewage treatment device, comprising a mixing tank (1) and a sedimentation tank (2), wherein the mixing tank (1) is internally divided into a first chamber (3) and a second chamber (4), characterized in that: It also includes a stirrer (5), an observation tube (6), a transfer assembly (7), a heat conduction pipe (8) and a drive assembly (9); The agitator (5) is installed in the first chamber (3), and the agitator (5) is used for preliminarily mixing sewage and flocculant; The observation tube (6) is installed outside the stirring box (1), and the observation tube (6) is used to observe the flocculation effect in the first chamber (3); The transfer assembly (7) is installed on the mixing box (1), and the transfer assembly (7) is used to transfer the sewage in the first chamber (3) to the second chamber (4) and to transfer the sewage in the first chamber (3) to the observation tube (6); The heat conducting pipe (8) is installed in the first chamber (3), and fins (10) arranged obliquely are fixed on the heat conducting pipe (8). The heat conducting pipe (8) is used to heat the sewage, and the fins (10) are used to guide the sewage during stirring; The driving assembly (9) is installed outside the stirring box (1), the driving assembly (9) is in driving connection with the heat conducting pipe (8), and the driving assembly (9) is used to transport heat source into the heat conducting pipe (8) and drive the heat conducting pipe (8) and the fins (10) to float back and forth; The agitator (5) in the first chamber (3) operates to perform sewage flocculation treatment, and the transfer component (7) transports the flocculated sewage into the observation tube (6) when it is operated. When it is monitored that the flocculation effect is not good, the drive component (9) operates, and the drive component (9) transports the heat source to the heat conduction pipe (8) and drives the heat conduction pipe (8) and the fins (10) to float back and forth, forcing the sewage to be evenly heated and irregularly flow under the action of the fins (10); The transfer assembly (7) comprises a water pump (701), the water pump (701) being fixed on the top of the mixing box (1), an input pipe (702) being fixed to the input end of the water pump (701), the input pipe (702) extending into the first chamber (3), a main output pipe (703) being fixed to the output end of the water pump (701), the main output pipe (703) extending into the second chamber (4), and a first valve (704) being installed on the main output pipe (703); The main output tube (703) is fixedly connected to a secondary output tube (705), a second valve (706) is installed on the secondary output tube (705), one end of the secondary output tube (705) is fixedly connected to the bottom end of the observation tube (6), the top end of the observation tube (6) is fixedly connected to a return tube (707), and the return tube (707) extends into the first chamber (3); The inner wall of the first chamber (3) is fixedly connected to a slide rail (11), a rack (12) is slidably connected to the slide rail (11), a collar (13) is fixed to the rack (12), the collar (13) is fixedly sleeved on the bottom end of the input pipe (702), the top end of the rack (12) extends to the top of the mixing box (1), a first motor (14) is fixed to the top wall of the mixing box (1), a gear (15) is fixed to the output shaft of the first motor (14), and the gear (15) is meshed with the rack (12); The stirrer (5) comprises a second motor (51) and a support rod (52), wherein the support rod (52) is arranged inside the first chamber (3) and fixedly connected to the inner wall of the first chamber (3), the second motor (51) is fixed to the top of the stirring box (1), a base shaft (53) is fixed to the output shaft of the second motor (51), the base shaft (53) passes through the support rod (52) and is rotatably connected to the support rod (52), and a stirring blade (54) is fixed to the bottom end of the base shaft (53); The heat conducting pipe (8) is arranged in two groups, and the two groups of the heat conducting pipe (8) are distributed in a ring array around the base shaft (53); the heat conducting pipe (8) comprises an air intake pipe portion (81), a heat dissipation pipe portion (82), and an exhaust pipe portion (83) which are interconnected; a plurality of fins (10) are arranged and distributed on the heat dissipation pipe portion (82); the heat conducting pipe (8) further comprises a vertical rod (84); the vertical rod (84) is fixedly connected to the air intake pipe portion (81) and the exhaust pipe portion (83); the top ends of the vertical rod (84), the air intake pipe portion (81), and the exhaust pipe portion (83) all extend to the top of the mixing box (1); and the bottom end of the vertical rod (84) is movably plugged into the straight rod; The driving assembly (9) comprises a steam generator (901) and a booster pump (902) fixed on the top of the mixing box (1); the output end of the steam generator (901) and the air inlet end of the booster pump (902) are fixedly connected with a first air pipe (903); the air delivery end of the booster pump (902) is fixedly connected with a second air pipe (904); a hollow cylinder (905) is fixed in the middle of the second air pipe (904); a third valve (906) is installed on the second air pipe (904); two connecting pipes (907) are fixedly connected to the second air pipe (904); the connecting pipes (907) are fixedly connected to the end of the air inlet pipe portion (81); The driving assembly (9) further comprises two mounting plates (908) fixed on the top of the mixing box (1), a crankshaft (909) being arranged between the two mounting plates (908), two ends of the crankshaft (909) being rotatably connected to the two mounting plates (908) respectively, two push rods (910) being movably connected to the crankshaft (909), the bottom ends of the push rods (910) being hinged to the top ends of the vertical rods (84), a worm gear (911) being fixed to the end of the crankshaft (909), a worm (912) being meshed at the edge of the worm gear (911), the worm (912) being mounted on the surface of the mounting plate (908) via a bearing seat (913), one end of the worm (912) passing through the hollow cylinder (905) and being fixed with an impeller (914).

2. A sewage treatment device according to claim 1, characterized in that: The second air pipe (904) is also fixedly connected to a branch pipe (915), and a fourth valve (916) is installed on the branch pipe (915).

3. Use of a sewage treatment device according to any one of claims 1 to 2 in the production of pretilachlor pesticide.

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