Uniform feeding type wastewater treatment device for production of biphenyl dichlorobenzyl

Abstract

The invention belongs to the technical field of wastewater treatment, and particularly relates to a uniform feeding type wastewater treatment device for biphenyl dichlorobenzyl production. Comprising a fixed tank; the air guide pipe is fixedly connected into the fixed tank, the upper side of the fixed tank is fixedly connected and communicated with an exhaust pipe, and the lower side of the fixed tank is fixedly connected and communicated with a liquid guide shell. The invention aims at solving the problems encountered when the existing evaporator treats wastewater, and the specific problem is that the contact area between the wastewater and a heating wall surface is reduced to reduce the heat transfer efficiency and reduce the evaporation rate under the condition that the water is reduced and the liquid level drops, and adopts a method for detecting the height of the liquid level in real time. When the liquid level is reduced, the hot air enters the reaction tank, so that the upper part of the reaction tank is filled with the hot air, then the wastewater at the lower part of the reaction tank is transferred upwards, the contact area and time between the wastewater and the hot air are increased, and the heat transfer efficiency and the evaporation effect are remarkably improved.

Description

Technical Field

[0001] The present invention relates to the technical field of wastewater treatment, and in particular to a uniformly fed type wastewater treatment device for the production of biphenyl dichlorobenzyl. Background Art

[0002] In the production process of biphenyl dichlorobenzyl, inorganic salts are widely used as reaction media or catalysts to promote chemical reactions or achieve product purification. Since these inorganic salts are directly involved in the production process, some inorganic salts will remain in the wastewater in subsequent treatment steps (such as separation, washing, etc.), resulting in the final discharged wastewater containing a higher concentration of salt. Wastewater with a high salt content not only increases the difficulty of sewage treatment, but also puts greater pressure on the environment. In order to remove the salt in the wastewater and achieve purification, the following methods are commonly used: evaporation concentration method, membrane separation method, electrodialysis method, crystallization method, precipitation method and flotation method, etc. Among them, the evaporation concentration method usually uses an evaporator as the main equipment, and its working principle is: wastewater and additives are added into a tank, and the wastewater is heated to vaporize the water therein, so as to achieve the effect of concentrating the solution or separating the solute.

[0003] As the treatment time increases, the moisture content in the wastewater gradually decreases, causing the wastewater level to drop. When the liquid level in the traditional evaporator drops, the contact area between the liquid and the heating wall surface decreases, which reduces the heat transferred to the liquid per unit time, ultimately leading to a decrease in the evaporation rate. Summary of the invention

[0004] In order to solve the problems mentioned in the above background technology, the present invention provides a uniform feeding type wastewater treatment device for the production of biphenyl dichlorobenzyl.

[0005] The technical solution of the present invention is: a uniform feeding type wastewater treatment device for biphenyl dichlorobenzyl production, comprising: Fixed tank; An air guide pipe is fixedly connected in the fixed tank, an upper side of the fixed tank is fixedly connected and communicated with an exhaust pipe, the exhaust pipe is communicated with an external uniform feeding device, and a lower side of the fixed tank is fixedly connected and communicated with a liquid guide shell; A first telescopic shell is fixedly connected in the fixed tank, the telescopic portion of the first telescopic shell is fixedly connected to and communicated with a discharge shell, and the discharge shell is provided with discharge ports that are communicated with the inside and distributed in a ring array; A liquid conduction pump is arranged at one side of the fixed tank, and a liquid outlet and a liquid inlet of the liquid conduction pump are respectively connected with the first telescopic shell and the liquid conduction shell through connecting pipes; An air outlet pipe, fixedly connected to and communicated with the fixed tank, and communicated with the air guide pipe, wherein a solenoid valve is arranged in the air outlet pipe; A support assembly is disposed on the discharge shell and is used to leave a gap between the discharge shell and the liquid surface; The cleaning component is arranged in the fixed tank and is used for cleaning the inner wall of the fixed tank.

[0006] Preferably, the cleaning component comprises: The motor is arranged in the fixed tank, the driving shaft of the motor passes through the liquid guide shell and is sealed and rotatably connected thereto, the driving shaft of the motor is fixedly connected with a cleaning part located in the fixed tank, and the cleaning part is used to scrape the material sticking to the inner wall of the fixed tank.

[0007] Preferably, the support assembly comprises: A second telescopic shell is fixedly connected to the discharge shell; A floating member, fixedly connected to the telescopic portion of the second telescopic shell, the floating member being located below the discharge shell; The material guiding components have the same number as the material outlet of the material outlet shell and are all arranged on the material outlet shell to guide the discharge of the material in the material outlet shell.

[0008] Preferably, the material guiding assembly comprises: The swing shell is rotatably connected to the adjacent discharge port in the discharge shell. The swing shell and the discharge shell are fixedly connected and communicated with a bellows.

[0009] Preferably, the material guiding component further comprises: A gear box is fixedly connected to the discharge shell, and the gear box is drivingly connected to the adjacent swing shell; A wire take-up member is arranged on the gear box, the wire take-up member is drivingly connected to the adjacent gear box, and a first connecting rope fixedly connected to the fixing tank is wound around the wire take-up member; A limiting component is arranged in the fixed tank and is used to limit the position of the discharge shell in the fixed tank.

[0010] Preferably, the limiting component comprises: A connecting frame, fixedly connected in the fixed tank, wherein the connecting frame is fixedly connected with a first rack; A protection box, fixedly connected to the discharge shell; A transmission gear, rotatably connected to the protection box, the transmission gear meshing with the first rack; A sliding rod is slidably connected in the protection box, a spring is fixedly connected between the sliding rod and the protection box, a swing frame is fixedly connected to the transmission gear, and the sliding rod is used to limit the swing frame; An unlocking component is arranged in the protection box and is used for releasing the limit of the swing frame.

[0011] Preferably, the connecting frame is fixedly connected to two third telescopic shells, and the facing sides of the two third telescopic shells are fixedly connected to the protection box, and the first rack is located in the two third telescopic shells.

[0012] Preferably, the unlocking component comprises: A gear shaft is rotatably connected in the protection box, and a torsion spring is fixedly connected between the gear shaft and the protection box; An extrusion block is fixedly connected to the gear shaft and is used to extrude the sliding rod. A second rack meshing with the gear shaft is slidably connected in the protection box, and a second connecting rope is fixedly connected between the second rack and the floating member.

[0013] Preferably, the second connecting rope is a flexible rope, which is used to reduce the impact of the floating member on the second rack when floating.

[0014] Preferably, the cleaning member is provided with a plurality of material guide ports, and the cross-section of the material guide ports is a parallelogram.

[0015] Beneficial effects of the present invention: The present invention improves the problems encountered by the existing evaporator in treating wastewater. The specific problem is that when the water content is reduced and the liquid level drops, the contact area between the wastewater and the heating wall surface is reduced, thereby reducing the heat transfer efficiency and the evaporation rate. In order to solve this problem, the present invention adopts a method for real-time detection of the liquid level. When the liquid level drops, hot air enters the reaction tank, so that the upper part of the reaction tank is filled with hot air, and then the wastewater in the lower part of the reaction tank is transferred upward to ensure that it is fully in contact with the hot air in the upper part. In this way, the contact area and time between the wastewater and the hot air are increased, and the heat transfer efficiency and evaporation effect are significantly improved; In the process of monitoring the liquid level of the present invention, the initial spray angle of the wastewater is upward spraying, and according to the height of the liquid level, the spraying angle of the wastewater from the upper part of the reaction tank is changed, so that the wastewater first contacts with the surrounding hot air, and the evaporation speed of the wastewater is accelerated, and the wastewater then flows downward from the inner wall of the reaction tank, and the contact area of ​​the wastewater is increased, and the effective area of ​​evaporation is increased, thereby further improving the evaporation efficiency of the wastewater, and when the liquid level in the reaction tank is lowered to the point where the viscosity of the wastewater increases, the angle of spraying the wastewater is changed again, so that the sprayed wastewater no longer flows along the inside of the reactor, and the amount of salt and other impurities in the wastewater deposited on the inner wall of the reaction tank is reduced, thereby reducing the probability of equipment scaling. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention; Figure 2 It is a three-dimensional structural cross-sectional view of the fixed tank of the present invention; Figure 3 It is a three-dimensional structural cross-sectional view of the discharge shell of the present invention; Figure 4 It is a schematic diagram of the three-dimensional structure of the material guide port of the present invention; Figure 5is a three-dimensional structural cross-sectional view of a third telescopic shell of the present invention; Figure 6 It is a three-dimensional structural schematic diagram of the swing housing and the gear box of the present invention; Figure 7 It is a three-dimensional structural schematic diagram of the internal structure of the protection box of the present invention; Figure 8 It is a three-dimensional structural schematic diagram of the sliding rod and the swing frame of the present invention; Fig. 9 It is a schematic diagram of the three-dimensional structure of the sliding rod and the extrusion block of the present invention.

[0017] The markings of the components in the accompanying drawings are as follows: 10, fixed tank, 11, air guide pipe, 12, exhaust pipe, 13, liquid guide shell, 14, motor, 15, cleaning part, 151, material guide port, 16, first telescopic shell, 17, discharge shell, 18, liquid guide pump, 19, air outlet pipe, 20, second telescopic shell, 21, floating part, 30, swing shell, 31, gear box, 32, wire take-up part, 33, first connecting rope, 40, connecting frame, 41, first rack, 42, protective box, 43, transmission gear, 44, sliding rod, 45, swing frame, 46, third telescopic shell, 50, gear shaft, 51, extrusion block, 52, second rack, 53, second connecting rope. DETAILED DESCRIPTION

[0018] The present invention will be further described below in conjunction with the embodiments shown in the accompanying drawings.

[0019] The present invention aims to solve the problem that when the existing evaporator treats wastewater, the liquid level drops due to the reduction of water content, which in turn causes the contact area between the liquid and the heating wall to decrease, thereby reducing the heat transfer efficiency and slowing down the evaporation rate. The present invention adopts a method of real-time detection of the liquid level. When the liquid level decreases, gas is automatically introduced into the reaction tank to fill the upper part of the reaction tank with hot gas. Subsequently, the liquid in the lower part is transferred upward to make it fully contact with the hot gas in the upper part, thereby increasing the contact area and time between the liquid and the hot gas, and significantly improving the heat transfer efficiency and evaporation effect.

[0020] Example 1: A uniform feeding type wastewater treatment device for the production of biphenyl dichlorobenzyl, please refer to Figure 1-Figure 6, including: a fixed tank 10; an air guide pipe 11, fixedly connected to the fixed tank 10, an exhaust pipe 12 is fixedly connected to the upper side of the fixed tank 10 and connected to the exhaust pipe 12, the exhaust pipe 12 is connected to an external uniform feeding device, and a liquid guide shell 13 is fixedly connected to the lower side of the fixed tank 10 and connected to the lower side; a first telescopic shell 16, fixedly connected to the fixed tank 10, a telescopic portion of the first telescopic shell 16 is fixedly connected to and connected to a discharge shell 17, and the discharge shell 17 is provided with a discharge port that is connected to the inside and distributed in a ring array; a liquid guide pump 18, arranged on one side of the fixed tank 10, and the liquid outlet and liquid inlet of the liquid guide pump 18 are respectively connected to the first telescopic shell 16 and the liquid guide shell 13 through a connecting pipe The air outlet pipe 19 is fixedly connected to and communicated with the fixed tank 10, and is communicated with the air guide pipe 11, and a solenoid valve is arranged in the air outlet pipe 19; a supporting assembly is arranged on the discharge shell 17, and is used to leave a gap between the discharge shell 17 and the liquid surface; a cleaning assembly is arranged in the fixed tank 10, and is used to clean the inner wall of the fixed tank 10; the cleaning assembly comprises: a motor 14, which is arranged in the fixed tank 10, and the driving shaft of the motor 14 passes through the liquid guide shell 13 and is sealed and rotatably connected thereto, and the driving shaft of the motor 14 is fixedly connected to a cleaning member 15 located in the fixed tank 10, and the cleaning member 15 is used to scrape the material sticking to the inner wall of the fixed tank 10.

[0021] In the above scheme, the fixed tank 10 is composed of a bottom plate, a tank body and a top plate connected by bolts. The part of the air guide pipe 11 located in the fixed tank 10 is spiral. There can be multiple air outlet pipes 19, and the positions can have different heights. The specific number is adjusted according to actual conditions. The present invention only takes one air guide pipe 11 as an example, and can be adjusted according to actual conditions. When the liquid level in the fixed tank 10 drops to near the middle part thereof, the solenoid valve in the air outlet pipe 19 can be opened after the liquid level in the fixed tank 10 drops, so that the air outlet pipe 19 is connected with the fixed tank 10. The air outlet pipe 19 then guides the hot air in the air guide pipe 11 into the upper part of the fixed tank 10, and the waste water discharged through the discharge port of the discharge shell 17 makes the waste water contact with the hot air in the upper part of the fixed tank 10, thereby shortening the time for waste water treatment. The cleaning part 15 is composed of a rotating frame and two scrapers (the specific number of scrapers can be adjusted according to actual conditions), and the rotating frame and the two scrapers in the cleaning part 15 are bolted.

[0022] Please refer to Figure 3 , Figure 5 and Figure 6 The supporting assembly includes: a second telescopic shell 20, fixedly connected to the discharge shell 17; a floating member 21, fixedly connected to the telescopic portion of the second telescopic shell 20, and the floating member 21 is located below the discharge shell 17; a material guiding assembly, the number of which is consistent with the number of discharge ports of the discharge shell 17, and both are arranged on the discharge shell 17, for guiding the discharge of materials in the discharge shell 17.

[0023] In the above scheme, the floating member 21 is used to make the discharge shell 17 located above the liquid level of the wastewater in the fixed tank 10. The purpose of the retractable second telescopic shell 20 is: to increase the efficiency of wastewater treatment in the fixed tank 10, a stirring rod is added to the fixed tank 10, and the wastewater is stirred by the stirring rod to make the wastewater "move" in the fixed tank 10. After the wastewater in the fixed tank 10 is stirred, the liquid level of the wastewater will float. When the liquid level of the wastewater floats, it drives the floating member 21 to move, and the floating member 21 drives the telescopic part of the second telescopic shell 20 to move, so that the floating member 21 will not affect the discharge of liquid in the discharge shell 17 when it floats.

[0024] Please refer to Figure 3 and Figure 6 The material guiding assembly includes: a swing shell 30, which is rotatably connected to an adjacent discharge port in the discharge shell 17, and the swing shell 30 is fixedly connected to the discharge shell 17 and communicated with a bellows.

[0025] In the above scheme, the swing shell 30 is used to guide the waste water in the discharge shell 17. By changing the swing angle of the swing shell 30, the contact time between the waste water and the hot air is changed. All the swing shells 30 are initially facing upward.

[0026] Please refer to Figure 3 and Figure 6 The material guiding assembly also includes: a gear box 31, which is fixed to the discharge shell 17, and the gear box 31 is transmission-connected to the adjacent swing shell 30; a wire take-up member 32, which is arranged on the gear box 31, and the wire take-up member 32 is transmission-connected to the adjacent gear box 31, and the wire take-up member 32 is wound with a first connecting rope 33 fixed to the fixed tank 10; a limiting assembly, which is arranged in the fixed tank 10, and is used to limit the position of the discharge shell 17 in the fixed tank 10.

[0027] In the above scheme, the wire taking-up member 32 is composed of a fixed shell, a rotating shaft and a coil spring. The rotating shaft is rotatably connected in the fixed shell, and the coil spring is fixed between the two. The gear box 31 is transmission connected to the rotating shaft in the wire taking-up member 32. The gear box 31 is used to increase the torque of the wire taking-up member 32, so that the swing shell 30 can swing slightly downward during the downward movement of the discharge shell 17.

[0028] Please refer to Figure 3-Figure 9The limiting assembly includes: a connecting frame 40, which is fixedly connected to the fixed tank 10, and the connecting frame 40 is fixedly connected to a first rack 41; a protection box 42, which is fixedly connected to the discharge shell 17; a transmission gear 43, which is rotatably connected to the protection box 42, and the transmission gear 43 is meshed with the first rack 41; a sliding rod 44, which is slidably connected to the protection box 42, and a spring is fixedly connected between the sliding rod 44 and the protection box 42, and the transmission gear 43 is fixedly connected to a swing frame 45, and the sliding rod 44 is used to limit the swing frame 45; an unlocking assembly is arranged in the protection box 42, and is used to release the limit on the swing frame 45, the connecting frame 40 is fixedly connected to two third telescopic shells 46, and the opposite sides of the two third telescopic shells 46 are fixedly connected to the protection box 42, and the first rack 41 is located in the two third telescopic shells 46.

[0029] In the above scheme, there are two protection boxes 42 in the figure, and the specific number can be adjusted according to actual conditions. The spring of the sliding rod 44 is initially in a compressed state. When the sliding rod 44 moves to the side away from the transmission gear 43, the sliding rod 44 is no longer in contact with the swing frame 45. At that time, the limit on the transmission gear 43 is released. At this time, the protection box 42 can slide up and down at will. The telescopic part of the upper third telescopic shell 46 is initially in a contracted state, and the telescopic part of the lower third telescopic shell 46 is initially in a stretched state. The third telescopic shell 46 is used to protect the first rack 41 from erosion by wastewater.

[0030] Please refer to Figure 7-Figure 9 The unlocking assembly includes: a gear shaft 50, which is rotatably connected to the protection box 42, and a torsion spring is fixed between the gear shaft 50 and the protection box 42; an extrusion block 51, which is fixed to the gear shaft 50 and is used to squeeze the sliding rod 44, and a second rack 52 meshing with the gear shaft 50 is slidably connected in the protection box 42, and a second connecting rope 53 is fixed between the second rack 52 and the floating member 21; the second connecting rope 53 is a flexible rope, which is used to reduce the influence of the floating member 21 on the second rack 52 when it floats.

[0031] In the above scheme, the torsion force of the torsion spring on the gear shaft 50 is greater than the elastic force of the spring on the sliding rod 44, and the extrusion block 51 is a cam. Figure 7 For example, the center of the circle where the left edge line of the extrusion block 51 is located coincides with the center of the gear.

[0032] Working principle: When the wastewater from the production of biphenyl dichloride needs to be treated, the wastewater from the production of biphenyl dichloride is first injected into the fixed tank 10 at a constant speed by an external uniform feeding device to avoid the problem of excessively high or low local concentrations due to a large amount of treatment materials being added at one time (the additives mentioned above may be: defoaming agents, corrosion inhibitors, etc.).

[0033] After the wastewater level in the fixed tank 10 continues to rise, the floating member 21 drives the telescopic part of the second telescopic shell 20 to move upward (the wastewater in the subsequent production of biphenyl dichlorobenzyl will be described as wastewater). When the telescopic part of the second telescopic shell 20 is completely retracted therein, the wastewater level in the fixed tank 10 has reached the required working level (the wastewater level in the fixed tank 10 does not submerge the air outlet pipe 19). The staff disconnects the external uniform feeding equipment from the exhaust pipe 12, and then connects the exhaust port of the external exhaust equipment to the exhaust pipe 12. Finally, the staff connects the external circulating heating equipment to the upper and lower sides of the air guide pipe 11, thereby completing the preparation actions before wastewater treatment.

[0034] After completing the actions before wastewater treatment, the staff starts the external circulation heating equipment and the motor 14. The external circulation heating equipment sends hot air into the air duct 11 through the lower side. The gas flows upward along the air duct 11 and is then discharged back into the external circulation heating equipment from the upper side of the air duct 11 to achieve circulation heating of the gas in the air duct 11. The hot air in the air duct 11 transfers heat from the air duct 11 to the fixed tank 10, and the fixed tank 10 heats the wastewater therein to gradually vaporize the water in the wastewater. In this process, the external exhaust equipment extracts the steam in the fixed tank 10 to achieve wastewater treatment.

[0035] In the process of treating wastewater, since the wastewater contains salt and other impurities, the salt and other impurities will adhere to the inner wall of the reactor and gradually form an impurity layer, which not only affects the cleanliness of the equipment, but more importantly, it will affect the heat conduction efficiency, making the heating effect worse, and further affecting the evaporation rate and the overall processing efficiency. In the present invention, the cleaning member 15 is driven to rotate by the driving shaft of the motor 14, so that the cleaning member 15 cleans the impurity layer adhered to the inner wall of the fixed tank 10 during the rotation process, thereby overcoming the above-mentioned problems.

[0036] As the treatment time increases, the liquid level of the wastewater in the fixed tank 10 gradually decreases. When the liquid level in the fixed tank 10 drops to near the middle thereof, the staff controls the solenoid valve in the air outlet pipe 19 so that part of the gas in the air guide pipe 11 can be sprayed into the fixed tank 10 through the air outlet pipe 19, so that the upper side of the fixed tank 10 is filled with hot air, thereby allowing the hot air to directly contact the wastewater, extending the evaporation area while extending the evaporation time, so that more water can be evaporated per unit time, thereby improving the evaporation efficiency of the wastewater (in this process, hot air can be supplemented into the air guide pipe 11 through an external circulation heating device to supplement the hot air sprayed from the air outlet pipe 19).

[0037] After the liquid level of the wastewater in the fixed tank 10 drops to near the middle thereof, the staff starts the liquid conduction pump 18, and the liquid conduction pump 18 extracts the wastewater in the fixed tank 10 and the liquid conduction shell 13 through the connecting pipe on the right side, so that the wastewater enters the liquid conduction pump 18 and enters the first telescopic shell 16 through the connecting pipe on the upper side thereof, and the first telescopic shell 16 sends the wastewater into the discharge shell 17, and the wastewater in the discharge shell 17 is sprayed out by all the swing shells 30 thereon. Under the action of all the swing shells 30 initially facing upward, the wastewater sprayed out of the swing shell 30 can contact with the surrounding hot air while falling to the inner wall of the fixed tank 10 and sliding down along the inner wall thereof. In the process of the wastewater sprayed out by the swing shell 30 contacting with the surrounding hot air, the heat transfer area and time between the gas-liquid two phases are increased, which not only accelerates the evaporation rate of the wastewater, but also improves the evaporation efficiency. In the process of the wastewater flowing along the inner wall of the fixed tank 10, the contact area with the hot air increases, and the effective area of ​​evaporation is increased, thereby further improving the evaporation efficiency.

[0038] After the liquid level drops, the floating member 21 drives the telescopic part of the second telescopic shell 20 to move downward under the action of gravity. During the downward movement of the floating member 21, the second connecting rope 53 is pulled. In this process, since the second connecting rope 53 is a flexible rope, after the wastewater liquid level in the fixed tank 10 fluctuates (stirring causes liquid level fluctuations), the floating member 21 floats upward without affecting the connection between the second connecting rope 53 and the floating member 21 (if the second connecting rope 53 is made of a hard material, the wastewater liquid level in the fixed tank 10 will drive the second connecting rope 53 to move up and down at will when floating, causing the second rack 52 to be accidentally touched).

[0039] The floating member 21 moves downward synchronously with the process of the wastewater level in the fixed tank 10 decreasing. During the downward movement of the floating member 21, the second rack 52 is driven downward by the second connecting rope 53, and the second rack 52 drives the gear shaft 50 to rotate (the torsion spring is tightened during the rotation of the gear shaft 50). During the rotation of the gear shaft 50, the extrusion block 51 is driven to rotate synchronously. After the extrusion block 51 rotates, it no longer squeezes the sliding rod 44. The sliding rod 44 slides in the direction of the second rack 52 under the action of the adjacent spring. After the sliding rod 44 slides until it no longer contacts the swing frame 45, the discharging shell 17 drives the protective box 42 to move downward under the action of the gravity of the discharging shell 17. During this process, the transmission gear 43 engages with the first rack 41 and then rotates. Through the above actions, the distance between the discharging shell 17 and the wastewater level in the fixed tank 10 is shortened.

[0040] After the wastewater level in the fixed tank 10 is lowered, the wastewater in the fixed tank 10 will become thicker. During the downward movement of the discharge shell 17, the lower side of the first connecting rope 33 is released from the wire take-up member 32. During the release of the first connecting rope 33, the rotating shaft in the wire take-up member 32 rotates. The rotating shaft in the wire take-up member 32 transmits power to the gear box 31, and the gear box 31 drives the swing shell 30 to swing slightly downward, thereby changing the way the swing shell 30 sprays materials.

[0041] When the discharge shell 17 moves downward until the floating member 21 contacts the wastewater surface in the fixed tank 10, the floating member 21 no longer pulls the second connecting rope 53, and the gear shaft 50 rotates and resets under the action of the adjacent torsion spring, so that the second rack 52 moves and resets, and squeezes the sliding rod 44 toward one side of the first rack 41, so that the sliding rod 44 squeezes the spring during the movement and restores the limit of the swing frame 45.

[0042] When the discharge shell 17 moves downward until the transmission gear 43 drives the swing frame 45 to rotate and contact with the sliding rod 44, the sliding rod 44 limits the swing frame 45, thereby limiting the position of the transmission gear 43, the protection box 42 and the discharge shell 17. To this end, the movement, unlocking and re-locking of the discharge shell 17 are completed. Through the above steps, the monitoring of the wastewater liquid level in the fixed tank 10 is completed without knowing the concentration in the fixed tank 10, and the spraying position of the swing shell 30 is adjusted in time according to the position of the liquid level.

[0043] When the discharge shell 17 slides downward (the telescopic part of the first telescopic shell 16 extends), the telescopic part of the lower third telescopic shell 46 is retracted, and the telescopic part of the upper third telescopic shell 46 is stretched. By retracting or stretching the telescopic part of the third telescopic shell 46, the first rack 41 is protected and isolated from the wastewater in the fixed tank 10.

[0044] When the discharge shell 17 moves to the lower part of the fixed tank 10, the viscosity of the wastewater in the fixed tank 10 increases. At this time, all the swing shells 30 are facing downward. Under the action of the swing shells 30 facing downward, the wastewater sprayed by the swing shells 30 no longer contacts the inner wall of the fixed tank 10, but only contacts the hot air in the fixed tank 10, thereby reducing the amount of salt and other impurities deposited on the inner wall of the fixed tank 10.

[0045] After the water content of the wastewater in the fixed tank 10 is treated, the salt and other impurities in the wastewater remain in the fixed tank 10. Then the staff turns off all the electrical components mentioned above. Finally, the staff takes the salt and other impurities in the wastewater out of the fixed tank 10, thereby completing the treatment of the wastewater in the production of biphenyl dichlorobenzyl.

[0046] After removing the salt and other impurities in the wastewater in the fixed tank 10, the staff pulls the second connecting rope 53, so that the second rack 52 releases the limit on the swing frame 45 through the gear shaft 50, the extrusion block 51 and the sliding rod 44 (the gear shaft 50 rotates to tighten the torsion spring, and the sliding rod 44 moves to stretch the spring), so that the transmission gear 43 can slide freely. At this time, the staff pulls the discharge shell 17 upward, and the discharge shell 17 drives the protection box 42 and its accessory parts to move upward synchronously. In this process, the telescopic part of the first telescopic shell 16 is retracted, the telescopic part of the lower third telescopic shell 46 is extended, and the telescopic part of the upper third telescopic shell 46 is retracted, and the first connecting rope 33 is collected therein by the take-up member 32.

[0047] When the discharge shell 17 moves to Figure 3 After the state is reached, the staff loosens the second connecting rope 53, and under the effect of the gear shaft 50 rotating and resetting, the sliding rod 44 limits the swing frame 45 again.

[0048] Example 2: Based on Example 1, please refer to 3 and Figure 4 The cleaning member 15 is provided with a plurality of material guide ports 151, and the cross-section of the material guide ports 151 is a parallelogram.

[0049] Working principle: During the treatment of the wastewater in the fixed tank 10, the motor 14 drives the cleaning member 15 to rotate in the fixed tank 10 (clockwise when viewed from top to bottom). During the clockwise rotation of the cleaning member 15, the wastewater enters from the guide port 151 on the side of the rotation direction of the cleaning member 15, and is then discharged from the guide port 151 on the side facing away from the rotation direction of the cleaning member 15. Under the effect of the parallelogram shape of the guide port 151, the wastewater in the inner circle is transferred to the outer circle, changing the flow path of the wastewater in the reaction tank so that the wastewater in the inner circle can contact the inner wall of the fixed tank 10, thereby enhancing the efficiency of wastewater treatment.

[0050] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A uniform feeding type wastewater treatment device for the production of biphenyl dichlorobenzyl, characterized in that: include: Fixed tank (10); An air guide pipe (11) is fixedly connected to the fixed tank (10); an upper side of the fixed tank (10) is fixedly connected to and communicated with an exhaust pipe (12); the exhaust pipe (12) is communicated with an external uniform feeding device; and a lower side of the fixed tank (10) is fixedly connected to and communicated with a liquid guide shell (13); A first telescopic shell (16) is fixedly connected in the fixed tank (10), the telescopic portion of the first telescopic shell (16) is fixedly connected to and communicated with a discharge shell (17), and the discharge shell (17) is provided with discharge ports that are communicated with the inside and are distributed in a ring array; A liquid conduction pump (18) is arranged on one side of the fixed tank (10), and a liquid outlet and a liquid inlet of the liquid conduction pump (18) are respectively connected to the first telescopic shell (16) and the liquid conduction shell (13) through connecting pipes; an air outlet pipe (19) fixedly connected to and in communication with the fixed tank (10), and in communication with the air guide pipe (11); a solenoid valve is provided in the air outlet pipe (19); A support assembly, arranged on the discharge shell (17), and used to leave a gap between the discharge shell (17) and the liquid surface; A cleaning component is arranged in the fixed tank (10) and is used to clean the inner wall of the fixed tank (10).

2. A uniformly fed biphenyl dichlorobenzyl production wastewater treatment device according to claim 1, characterized in that: The cleaning component includes: A motor (14) is disposed in the fixed tank (10); a drive shaft of the motor (14) passes through the liquid guide housing (13) and is rotatably connected thereto in a sealed manner; the drive shaft of the motor (14) is fixedly connected to a cleaning member (15) located in the fixed tank (10); the cleaning member (15) is used to scrape material adhered to the inner wall of the fixed tank (10).

3. A uniformly fed biphenyl dichlorobenzyl production wastewater treatment device according to claim 1, characterized in that: The support assembly comprises: A second telescopic shell (20) fixedly connected to the discharge shell (17); A floating member (21) is fixedly connected to the telescopic portion of the second telescopic shell (20), and the floating member (21) is located below the discharge shell (17); The material guide components have the same number as the material outlet of the material outlet shell (17), and are all arranged on the material outlet shell (17) to guide the discharge of the material in the material outlet shell (17).

4. A uniformly fed biphenyl dichlorobenzyl production wastewater treatment device according to claim 3, characterized in that: The material guide assembly comprises: The swing shell (30) is rotatably connected to an adjacent discharge port in the discharge shell (17); the swing shell (30) and the discharge shell (17) are fixedly connected and communicated with each other via a bellows.

5. A uniformly fed biphenyl dichlorobenzyl production wastewater treatment device according to claim 4, characterized in that: The material guide assembly also includes: A gear box (31) is fixedly connected to the discharge shell (17), and the gear box (31) is drivingly connected to the adjacent swing shell (30); A wire take-up member (32) is disposed on the gear box (31), the wire take-up member (32) is transmission-connected to the adjacent gear box (31), and a first connection rope (33) fixedly connected to the fixed tank (10) is wound around the wire take-up member (32); A limiting component is arranged in the fixed tank (10) and is used to limit the position of the discharge shell (17) in the fixed tank (10).

6. A uniformly fed biphenyl dichlorobenzyl production wastewater treatment device according to claim 5, characterized in that: The limiting component comprises: A connecting frame (40) is fixedly connected in the fixed tank (10), and the connecting frame (40) is fixedly connected with a first rack (41); A protection box (42) fixedly connected to the discharge shell (17); A transmission gear (43) is rotatably connected to the protection box (42), and the transmission gear (43) is meshed with the first rack (41); A sliding rod (44) is slidably connected in the protection box (42); a spring is fixedly connected between the sliding rod (44) and the protection box (42); a swing frame (45) is fixedly connected to the transmission gear (43); and the sliding rod (44) is used to limit the swing frame (45); An unlocking component is arranged in the protection box (42) and is used to release the limit of the swing frame (45).

7. A uniformly fed biphenyl dichlorobenzyl production wastewater treatment device according to claim 6, characterized in that: The connecting frame (40) is fixedly connected to two third telescopic shells (46), and the facing sides of the two third telescopic shells (46) are fixedly connected to the protection box (42), and the first rack (41) is located inside the two third telescopic shells (46).

8. A uniformly fed biphenyl dichlorobenzyl production wastewater treatment device according to claim 7, characterized in that: The unlocking component comprises: A gear shaft (50) is rotatably connected to the protection box (42), and a torsion spring is fixedly connected between the gear shaft (50) and the protection box (42); An extrusion block (51) is fixedly connected to the gear shaft (50) and is used to extrude the sliding rod (44). A second rack (52) meshing with the gear shaft (50) is slidably connected in the protection box (42). A second connecting rope (53) is fixedly connected between the second rack (52) and the floating member (21).

9. A uniformly fed biphenyl dichlorobenzyl production wastewater treatment device according to claim 8, characterized in that: The second connecting rope (53) is a flexible rope, and is used to reduce the impact of the floating member (21) on the second rack (52) when floating.

10. A uniformly fed biphenyl dichlorobenzyl production wastewater treatment device according to claim 2, characterized in that: The cleaning piece (15) is provided with a plurality of material guide openings (151), and the cross-section of the material guide openings (151) is in the shape of a parallelogram.

Images