Coking wastewater treatment device

Abstract

The coking wastewater treatment device comprises a box body, a discharging mechanism and a stirring mechanism, the box body is fixedly provided with a water inlet pipe and a water outlet pipe, and the discharging mechanism comprises a discharging assembly, a putting assembly and a driving assembly; the discharging assembly comprises a screw rod, a first sleeve, a plurality of fixing rods and a fixing ring, the screw rod penetrates through the top wall of the box body and is rotationally connected with the top wall of the box body, the first sleeve is in threaded connection to the screw rod, one ends of the fixing rods are fixedly arranged on the first sleeve, the other ends of the fixing rods are fixed to the fixing ring, and a discharging opening is formed in the fixing ring; the feeding assembly comprises a storage tank, a second sleeve, a third sleeve and a discharging pipe, the top end of the second sleeve is fixed and communicated with the storage tank, the bottom end of the second sleeve extends into the box and is communicated with the box, the third sleeve is fixed to the second sleeve, a piston rod is arranged in the third sleeve, and a first one-way valve and a second one-way valve are fixedly arranged in the second sleeve. The discharging pipe is fixed and communicated with the second sleeve, and the bottom end of the discharging pipe is fixed and communicated with the fixing ring. The device is used for solving the technical problem of insufficient mixing of a coagulant and wastewater.

Description

Technical Field

[0001] The invention belongs to the technical field of wastewater treatment equipment, and in particular relates to a coking wastewater treatment device. Background Art

[0002] Coking wastewater mainly comes from the high-temperature dry distillation of coal and gas purification in coking production, as well as the refining process of chemical products, among which the residual ammonia water in the ammonia evaporation process is the main source. The amount and quality of coking wastewater vary depending on the scale of coking production, the gas purification process used, and the depth of chemical product processing. The annual discharge of coking wastewater in China is about 300 million tons. The water quality of coking wastewater is complex and the water volume is large. It is toxic, harmful, highly polluting and difficult to treat industrial wastewater.

[0003] At present, the purification treatment of coking wastewater is mostly to discharge the biochemically treated coking wastewater into a secondary sedimentation tank, and then enter the coagulation reaction tank, first fully mix the coagulant and wastewater, and then add flocculants for sedimentation. After the coking wastewater flocculates and settles, an upper water body and a lower sediment are formed in the coking wastewater. Finally, the upper water body is pumped out, and the lower sediment is discharged, so that the water body and the sediment are separated, thereby achieving the purification of the coking wastewater. However, there are problems such as insufficient mixing and incomplete reaction in the coagulation and sedimentation process, which affect the coagulation and sedimentation effect and also affect the purification treatment of coking wastewater. Summary of the invention

[0004] The invention provides a coking wastewater treatment device, which is used to solve the technical problem that the existing coagulant and coking wastewater are not mixed sufficiently, the reaction is not complete, and the coagulation and sedimentation effect is affected.

[0005] In view of this, the present invention provides a coking wastewater treatment device, comprising a box body with a hollow interior, a material discharge mechanism, and a stirring mechanism, wherein the top and bottom ends of the box body are respectively fixed with an inlet pipe and an outlet pipe connected to the interior thereof, and a valve is fixed on the outlet pipe, and the material discharge mechanism comprises a discharge assembly, a delivery assembly, and a driving assembly; The discharging assembly comprises a screw, a first sleeve, a plurality of fixing rods and a fixing ring arranged in the box body along the height direction of the box body, the top end of the screw passes through the top wall of the box body and is rotatably connected thereto, the driving assembly drives the screw to rotate, the first sleeve is threadedly connected to one end of the screw in the box body, one end of the plurality of fixing rods is fixed on the first sleeve, and the other end is fixed to the fixing ring, and the bottom surface of the fixing ring is provided with a plurality of discharging ports; The delivery assembly includes a storage tank with a hollow interior, a second sleeve arranged between the storage tank and the box body, a third sleeve arranged perpendicular to the second sleeve, and a feed pipe. The second sleeve is arranged along the height direction of the box body, the top end of the second sleeve is fixed to the storage tank and communicated with the interior of the storage tank, the bottom end extends into the box body and communicated with the interior of the box body, the outer peripheral surface of the second sleeve is also fixed to the top wall of the box body, the third sleeve is arranged above the box body and on the side of the second sleeve close to the screw, one end of the third sleeve is fixed to the second sleeve and communicated with the interior thereof, a piston rod is slidably connected in the third sleeve, and the piston rod is connected to the driving assembly, a first one-way valve is fixed above the third sleeve in the second sleeve, a second one-way valve is fixed below the third sleeve, and a cavity is formed in the second sleeve between the first one-way valve and the second one-way valve, the top end of the feed pipe is fixed to the bottom end of the second sleeve and communicated with the interior of the second sleeve, the bottom end is fixed to the fixing ring and communicated with the interior of the fixing ring, and the feed pipe is a telescopic tube.

[0006] Optionally, the drive assembly includes a mounting plate fixed on the outer top surface of the casing on one side of the screw, a motor fixed on the mounting plate, a first gear fixed on the output shaft of the motor, and a second gear, the output shaft of the motor is arranged toward the top surface of the casing, the second gear is fixed at one end of the screw extending out of the casing and meshes with the first gear, the second gear is fixed with a first rotating shaft arranged parallel to the screw on one side of the center position, the second gear is vertically fixed with a second rotating shaft at one end of the piston rod away from the second sleeve, a connecting rod is arranged between the first rotating shaft and the second rotating shaft, the connecting rod is fixedly connected to the first rotating shaft and rotationally connected to the second rotating shaft.

[0007] Optionally, the stirring mechanism is arranged in the box at the bottom end of the screw.

[0008] Optionally, the stirring mechanism includes a fourth sleeve fixed at the bottom end of the screw and a plurality of first stirring rods, wherein the plurality of first stirring rods are arranged perpendicular to the screw and fixed on the outer peripheral surface of the fourth sleeve.

[0009] Optionally, the stirring mechanism further comprises a plurality of second stirring rods, which are respectively fixed on one end of the plurality of first stirring rods away from the screw rod, and the plurality of second stirring rods are respectively twisted downwards and arranged in a spiral shape.

[0010] Optionally, the coking wastewater treatment device also includes a filtering mechanism.

[0011] Optionally, the filtering mechanism comprises a filter plate fixedly mounted at the bottom end of the box body above the water outlet pipe, and a plurality of filter holes are formed on the filter plate.

[0012] Optionally, a cover plate is hinged on the water inlet pipe.

[0013] It can be seen from the above technical solutions that the embodiments of the present invention have the following advantages: When in use, pour the wastewater into the box from the water inlet pipe, start the driving component, adjust the position of the fixed ring, and allow the coagulant to intermittently enter the box to mix with the wastewater. It can also drive the stirring mechanism to stir, so as to achieve the effect of adding coagulant to the wastewater while stirring, so that the coagulant and wastewater are mixed more evenly and the reaction is more thorough, which is convenient for the purification of the wastewater. The sediment after the reaction can also be filtered through the filtering mechanism, so that the wastewater flows out through the outlet pipe for subsequent operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The present application is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0015] Figure 1 It is a schematic diagram of the overall structure of this application.

[0016] Figure 2 It is a partial cross-sectional view to show the blanking mechanism.

[0017] Figure 3 It is a partial cross-sectional view to show the stirring mechanism.

[0018] Figure 4 yes Figure 3 Enlarged view of part A in .

[0019] Description of Reference Numerals 1. Box body; 11. Water inlet pipe; 111. Cover plate; 12. Water outlet pipe; 121. Valve; 2. Feeding mechanism; 21. Feeding assembly; 211. Screw; 212. First sleeve; 213. Fixed rod; 214. Fixed ring; 2141. Feeding port; 22. Feeding assembly; 221. Storage tank; 222. Second sleeve; 223. Third sleeve; 224. Feeding pipe; 225. Piston rod; 226. First one-way valve; 227. Second one-way valve; 23. Driving assembly; 231. Mounting plate; 232. Motor; 233. First gear; 234. Second gear; 235. First rotating shaft; 236. Second rotating shaft; 237. Connecting rod; 3. Stirring mechanism; 31. Fourth sleeve; 32. First stirring rod; 33. Second stirring rod; 4. Filtering mechanism; 41. Filter plate; 411. Filter hole. DETAILED DESCRIPTION

[0020] In order to make the technical scheme of the present invention better understood by the personnel of the technical field, the technical scheme in the embodiment of the present invention is clearly and completely described below. Obviously, the described embodiment is only a part of the embodiment of the present invention, rather than all the embodiments. Based on the embodiment in the present invention, all other embodiments obtained by ordinary technicians in the field without making creative work are within the scope of protection of the present invention. Unless otherwise specified, various raw materials, reagents, instruments and equipment used in the present invention can be purchased from the market or can be prepared by existing methods.

[0021] Reference Figure 1 and Figure 2 A treatment device for coking wastewater comprises a housing 1, a feeding mechanism 2, a stirring mechanism 3, and a filtering mechanism 4. The housing 1 is in the shape of a hollow cylinder. A water inlet pipe 11 is fixedly provided at the top of the housing 1. The inside of the water inlet pipe 11 is connected to the inside of the housing 1, and a cover plate 111 is hinged on the water inlet pipe 11. A water outlet pipe 12 is fixedly provided at the bottom of the housing 1. The inside of the water outlet pipe 12 is connected to the inside of the housing 1, and a valve 121 is fixedly provided on the water outlet pipe 12. The feeding mechanism 2 is used to put a coagulant into the housing 1, the stirring mechanism 3 is used to stir the mixture in the housing 1, and the filtering mechanism 4 is arranged at the bottom of the housing 1 for filtering.

[0022] When in use, first pour the wastewater from the water inlet pipe 11 into the box 1, start the feeding mechanism 2, so that the coagulant can enter the box 1, and start the stirring mechanism 3 at the same time. The stirring mechanism 3 can stir the wastewater in the box 1 so that the wastewater and the coagulant are fully combined and reacted, and the formed sediment remains on the filtering mechanism 4, and the remaining wastewater passes through the filtering mechanism 4 and flows out from the water outlet pipe 12 for subsequent operations.

[0023] Reference Figure 1 and Figure 2The unloading mechanism 2 includes a discharging assembly 21, a feeding assembly 22, and a driving assembly 23. The discharging assembly 21 includes a screw 211, a first sleeve 212, a fixed rod 213, and a fixed ring 214. The screw 211 is arranged at the center position in the box body 1 and is arranged along the height direction of the box body 1. The top of the screw 211 passes through the top wall of the box body 1 and is rotatably connected thereto, and the driving assembly 23 drives the screw 211 to rotate. The first sleeve 212 is sleeved on one end of the screw 211 in the box body 1 and is threadedly connected to the screw 211. There are multiple fixed rods 213, and there are four in this embodiment. The four fixed rods 213 are all arranged perpendicular to the screw 211. The four fixed rods 213 are evenly spaced along the circumference of the first sleeve 212, and one end of the four fixed rods 213 along the length direction is respectively fixed on the first sleeve 212. The fixing ring 214 is annularly arranged on one side of the four fixing rods 213 away from the first sleeve 212, and one end of the four fixing rods 213 away from the sleeve is respectively fixedly connected to the fixing ring 214. The bottom surface of the fixing ring 214 is also uniformly provided with a plurality of discharge ports 2141.

[0024] Reference Figure 1 and Figure 2 The delivery assembly 22 includes a storage tank 221, a second sleeve 222, a third sleeve 223, and a feed pipe 224. The storage tank 221 is hollow inside and is used to store the coagulant, and is arranged above the box body 1. Figure 3 and Figure 4 , the second sleeve 222 is arranged along the height direction of the box body 1, and is arranged between the storage tank 221 and the box body 1. The top end of the second sleeve 222 is fixedly connected to the bottom surface of the storage tank 221 and is connected to the inside of the storage tank 221, and the bottom end passes through the top wall of the box body 1 and is connected to the inside of the box body 1. The outer peripheral surface of the second sleeve 222 is also fixedly connected to the top wall of the box body 1. The third sleeve 223 is arranged above the box body 1 vertically, and the third sleeve 223 is arranged on the side of the second sleeve 222 close to the screw 211. One end of the third sleeve 223 is fixedly connected to the second sleeve 222, and the interior of the third sleeve 223 is connected to the interior of the second sleeve 222. A piston rod 225 is slidably connected in the third sleeve 223, and the end of the piston rod 225 away from the third sleeve 223 is connected to the drive assembly 23. The second sleeve 222 is also fixed with a first one-way valve 226 and a second one-way valve 227. The first one-way valve 226 is fixed in the second sleeve 222 above the third sleeve 223, and the second one-way valve 227 is fixed in the second sleeve 222 below the third sleeve 223, and a cavity is formed between the first one-way valve 226 and the second one-way valve 227 in the second sleeve 222. The feed pipe 224 is arranged in the box body 1 and is a telescopic pipe. The top end of the feed pipe 224 is fixedly connected to the bottom end of the second sleeve 222, and the bottom end is fixedly connected to the fixing ring 214, and the top end of the feed pipe 224 is connected to the second sleeve 222, and the bottom end is connected to the fixing ring 214.

[0025] When in use, put coagulant into the storage tank 221, start the driving assembly 23, and the driving assembly 23 can drive the screw 211 to rotate. Since the screw 211 and the first sleeve 212 are threadedly connected and the limiting effect of the discharge pipe 224 can only make the first sleeve 212 move along the height direction of the screw 211, thereby realizing the lifting and lowering of the fixing ring 214; in addition, the driving assembly 23 can drive the piston rod 225 to move. When the driving assembly 23 drives the piston rod 225 to move away from the second sleeve 222, the cavity in the second sleeve 222 will become larger, so that the pressure in the cavity will become smaller. At this time, due to the first unidirectional The pressure above the valve 226 is greater than the pressure below, which will cause the coagulant in the storage tank 221 to pass through the first one-way valve 226 and reach the cavity. As the driving component 23 drives the piston rod 225 to move toward the second sleeve 222, the cavity in the second sleeve 222 will become smaller, causing the pressure in the cavity to increase. At this time, since the pressure above the second one-way valve 227 is greater than the pressure below the second one-way valve 227, the coagulant in the cavity passes through the second one-way valve 227 and enters the discharge pipe 224, reaches the fixed ring 214, and then flows out from the discharge port 2141 to mix with the wastewater. With the driving of the driving component 23, the piston rod 225 can repeat the above movement, causing the coagulant to fall intermittently, and the stirring mechanism 3 can make the coagulant and wastewater mix more evenly, which is convenient for the purification of the wastewater.

[0026] Reference Figure 2 and Figure 4 The driving assembly 23 includes a mounting plate 231, a motor 232, a first gear 233, and a second gear 234. The mounting plate 231 is fixed on the outer top surface of the box body 1 on one side of the screw 211. The motor 232 is fixed on the mounting plate 231, and the output shaft is arranged toward the top surface of the box body 1. The first gear 233 is sleeved on the output shaft of the motor 232 and is fixedly connected thereto. The second gear 234 is sleeved on the end of the screw 211 extending out of the top wall of the box body 1 and is fixedly connected thereto, and the first gear 233 and the second gear 234 are meshed. A first rotating shaft 235 is fixedly provided on the top surface of the second gear 234 at one side of the center position, and the first rotating shaft 235 is arranged parallel to the screw 211. A second rotating shaft 236 is vertically fixedly provided at the end of the piston rod 225 away from the second sleeve 222. A connecting rod 237 is disposed between the first rotating shaft 235 and the second rotating shaft 236 , and the connecting rod 237 is fixedly connected to the first rotating shaft 235 and rotatably connected to the second rotating shaft 236 .

[0027] Start the motor 232, and the output shaft of the motor 232 can drive the first gear 233 to rotate. Since the first gear 233 and the second gear 234 are meshed, the second gear 234 can be driven to rotate, thereby causing the screw 211 to rotate, thereby realizing the lifting and lowering of the fixing ring 214; at the same time, during the rotation of the second gear 234, the piston rod 225 can be driven to move through the connecting rod 237, thereby adjusting the position of the piston rod 225 in the third sleeve 223, thereby providing power for the release of the coagulant.

[0028] Reference Figure 2 and Figure 3 , the stirring mechanism 3 is arranged in the box body 1 at the bottom end of the screw 211, and the stirring mechanism 3 includes a fourth sleeve 31, a first stirring rod 32, and a second stirring rod 33. The fourth sleeve 31 is sleeved on the bottom end of the screw 211 and is fixedly connected to the screw 211. There are multiple first stirring rods 32, four in this embodiment, and the four first stirring rods 32 are arranged perpendicular to the screw 211. The four first stirring rods 32 are evenly spaced along the outer circumference of the fourth sleeve 31, and one end of the four first stirring rods 32 along the length direction is fixedly connected to the fourth sleeve 31. There are multiple second stirring rods 33, four in this embodiment, and they correspond to the four first stirring rods 32 one by one, and the four second stirring rods 33 are twisted downward and spirally arranged. The four second stirring rods 33 are respectively arranged at one end of the four first stirring rods 32 away from the screw 211, and are respectively fixedly connected to the four first stirring rods 32. The filter mechanism 4 includes a filter plate 41 , which is fixedly mounted at the bottom of the housing 1 above the water outlet pipe 12 , and has a plurality of filter holes 411 evenly formed on the filter plate 41 .

[0029] During use, as the coagulant enters the wastewater, the motor 232 drives the screw 211 to rotate, which can also drive the first stirring rod 32 and the second stirring rod 33 to rotate. Through the action between the two, the coagulant and the wastewater can be mixed more evenly, which is convenient for improving the coagulation effect; after a period of reaction, sediment will be formed, and the sediment larger than the filter hole 411 will fall on the filter plate 41, and the rest will flow out through the filter plate 41 and the outlet pipe 12 for subsequent operations.

[0030] The use principle of the present application is as follows: when in use, the wastewater is poured into the box 1 from the water inlet pipe 11, and the drive assembly 23 is started. The position of the fixed ring 214 can be adjusted, and the coagulant can be intermittently introduced into the box 1 to mix with the wastewater. The stirring mechanism 3 can also be driven to stir, so as to achieve the effect of adding the coagulant into the wastewater while stirring, so that the coagulant and the wastewater are mixed more evenly and the reaction is more thorough, which is convenient for the purification of the wastewater. The sediment after the reaction can also be filtered through the filtering mechanism 4, so that the wastewater flows out through the outlet pipe 12 for subsequent operations.

[0031] As described above, the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features thereof may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A coking wastewater treatment device, characterized in that: The invention comprises a box body (1) with a hollow interior, a material discharge mechanism (2), and a stirring mechanism (3); the top and bottom ends of the box body (1) are respectively fixedly provided with a water inlet pipe (11) and a water outlet pipe (12) which are connected to the interior thereof; the water outlet pipe (12) is fixedly provided with a valve (121); the material discharge mechanism (2) comprises a material discharge component (21), a delivery component (22), and a driving component (23); The discharge assembly (21) comprises a screw (211), a first sleeve (212), a plurality of fixed rods (213), and a fixed ring (214) which are arranged in the box body (1) along the height direction of the box body (1); the top end of the screw (211) passes through the top wall of the box body (1) and is rotatably connected thereto; the driving assembly (23) drives the screw (211) to rotate; the first sleeve (212) is threadedly connected to one end of the screw (211) in the box body (1); one end of the plurality of fixed rods (213) is fixed to the first sleeve (212) and the other end is fixed to the fixed ring (214); and a plurality of discharge ports (2141) are provided on the bottom surface of the fixed ring (214); The delivery assembly (22) comprises a storage tank (221) with a hollow interior, a second sleeve (222) arranged between the storage tank (221) and the casing (1), a third sleeve (223) arranged perpendicular to the second sleeve (222), and a feed pipe (224); the second sleeve (222) is arranged along the height direction of the casing (1); the top end of the second sleeve (222) is fixed to the storage tank (221) and communicates with the interior of the storage tank (221); the bottom end extends into the casing (1) and communicates with the interior of the casing (1); the outer peripheral surface of the second sleeve (222) is also fixed to the top wall of the casing (1); the third sleeve (223) is arranged above the casing (1) and on a side of the second sleeve (222) close to the screw (211); the third sleeve (223) One end is fixed to the second sleeve (222) and communicated with the interior thereof; a piston rod (225) is slidably connected in the third sleeve (223); the piston rod (225) is connected to the driving assembly (23); a first one-way valve (226) is fixedly provided above the third sleeve (223) in the second sleeve (222); a second one-way valve (227) is fixedly provided below the third sleeve (223); a cavity is formed between the first one-way valve (226) and the second one-way valve (227) in the second sleeve (222); the top end of the feed tube (224) is fixed to the bottom end of the second sleeve (222) and communicated with the interior of the second sleeve (222); the bottom end is fixed to the fixing ring (214) and communicated with the interior of the fixing ring (214); the feed tube (224) is a telescopic tube.

2. The coking wastewater treatment device according to claim 1, characterized in that: The driving assembly (23) comprises a mounting plate (231) fixedly mounted on the outer top surface of the housing (1) on one side of the screw rod (211), a motor (232) fixedly mounted on the mounting plate (231), a first gear (233) fixedly mounted on the output shaft of the motor (232), and a second gear (234), wherein the output shaft of the motor (232) is arranged toward the top surface of the housing (1), and the second gear (234) is fixedly mounted on one end of the screw rod (211) extending out of the housing (1) and is interlocked with the first gear (233). The second gear (234) is meshed with each other, a first rotating shaft (235) arranged parallel to the screw (211) is fixedly provided on one side of the center position of the second gear (234), a second rotating shaft (236) is vertically fixedly provided on one end of the piston rod (225) away from the second sleeve (222), a connecting rod (237) is arranged between the first rotating shaft (235) and the second rotating shaft (236), and the connecting rod (237) is fixedly connected to the first rotating shaft (235) and is rotationally connected to the second rotating shaft (236).

3. The coking wastewater treatment device according to claim 1, characterized in that: The stirring mechanism (3) is arranged inside the box (1) at the bottom end of the screw (211).

4. The coking wastewater treatment device according to claim 3, characterized in that: The stirring mechanism (3) comprises a fourth sleeve (31) fixedly mounted at the bottom end of the screw (211) and a plurality of first stirring rods (32). The plurality of first stirring rods (32) are all arranged perpendicular to the screw (211) and fixedly mounted on the outer peripheral surface of the fourth sleeve (31).

5. The coking wastewater treatment device according to claim 3, characterized in that: The stirring mechanism (3) further comprises a plurality of second stirring rods (33), wherein the plurality of second stirring rods (33) are respectively fixed to one end of the plurality of first stirring rods (32) away from the screw rod (211), and the plurality of second stirring rods (33) are respectively twisted downwards and arranged in a spiral shape.

6. The coking wastewater treatment device according to claim 1, characterized in that: The coking wastewater treatment device also includes a filtering mechanism (4).

7. The coking wastewater treatment device according to claim 6, characterized in that: The filtering mechanism (4) comprises a filter plate (41) fixedly arranged at the bottom end of the box body (1) above the water outlet pipe (12), and a plurality of filter holes (411) are formed on the filter plate (41).

8. The coking wastewater treatment device according to claim 1, characterized in that: A cover plate (111) is hingedly connected to the water inlet pipe (11).

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