Wastewater treatment equipment for chemical production

Abstract

The invention discloses wastewater treatment equipment for chemical production, and relates to the technical field of chemical wastewater, the wastewater treatment equipment is characterized in that the upper and lower ends of a settling tank are respectively provided with an inlet / outlet and a sludge discharge port, the inlet / outlet is used as a wastewater pump inlet and a purified water pump outlet, and the sludge discharge port is used as a precipitate discharge port; the unblocking mechanism comprises a hydraulic cylinder and a sealing plug, and the sealing plug is driven by the hydraulic cylinder to ascend and descend and used for unblocking or blocking the mud discharging opening. The cleaning mechanism comprises a cleaning strip and a motor, the motor drives the cleaning strip to rotate and is used for scraping sediments in the sedimentation tank or stirring waste water and precipitants in the sedimentation tank, during scraping, cleaning holes in the bottom surface of the cleaning strip are used for spraying high-speed airflow containing purified water and thoroughly blowing the sediments at the bottom of the tank, and during stirring, the cleaning strip is driven by the motor to rotate and is used for cleaning the sediments at the bottom of the tank. High-speed airflow containing a precipitant is sprayed out through the cleaning holes in the bottom surface of the cleaning strip, and fusion of the precipitant and the wastewater is accelerated. The wastewater treatment equipment disclosed by the invention has the characteristics of reasonable scheme, ingenious structure and convenience in use.

Description

Technical Field

[0001] The invention relates to the technical field of chemical wastewater, and in particular to wastewater treatment equipment for chemical production. Background Art

[0002] At present, the wastewater treatment station is mainly composed of wastewater collection tanks, fluorine-containing wastewater treatment systems, sludge treatment systems, dosing systems and other equipment. The chemical precipitation process is used to treat fluorine-containing wastewater and boron-containing wastewater. The treated wastewater and other production wastewater are homogenized and adjusted before being discharged into the park's wastewater network. After dehydration and drying, the sludge is entrusted to a qualified unit for treatment.

[0003] It is not difficult to see that when the above-mentioned equipment is arranged in the wastewater treatment station, it will inevitably take up a large space. In addition, the existing fluorine-containing wastewater treatment equipment requires a large number of operators to operate, the operation is complicated, and the indicators are not easy to control. In order to ensure the thorough removal of fluoride ions in the wastewater, even if the cost of defluorination agents is high, excessive defluorination agents must be added to achieve the treatment effect, thereby increasing the company's management costs and environmental protection costs. After discharging the treated wastewater, the sludge and sediment at the bottom need to be cleaned up through the sludge treatment system, and finally the interior of the fluorine-containing wastewater treatment equipment needs to be flushed clean, waiting to receive the next batch of wastewater. Summary of the invention

[0004] The purpose of the present invention is to provide a wastewater treatment device for chemical production to solve the above-mentioned defects caused by the prior art.

[0005] A wastewater treatment device for chemical production, comprising a sedimentation tank, a blocking mechanism and a cleaning mechanism, wherein:

[0006] The upper and lower ends of the sedimentation tank are respectively an inlet and an outlet and a mud discharge port, the inlet and the outlet are used as the pump inlet of the waste water and the pump outlet of the clean water, and the mud discharge port is used as the discharge port of the sediment;

[0007] The blocking mechanism is arranged inside the sedimentation tank and includes a hydraulic cylinder and a sealing plug. The sealing plug is driven up and down by the hydraulic cylinder and is used to open or block the mud discharge port.

[0008] The cleaning mechanism is arranged at the bottom of the sedimentation tank and includes a cleaning bar and a motor. The cleaning bar is driven by the motor to rotate and is used to scrape off the sediment in the sedimentation tank, or to stir the wastewater and precipitant in the sedimentation tank. When scraping, the cleaning holes on the bottom of the cleaning bar are used to spray out a high-speed airflow containing clean water and completely blow off the sediment at the bottom of the tank. When stirring, the cleaning holes on the bottom of the cleaning bar are used to spray out a high-speed airflow containing the precipitant and accelerate the fusion of the precipitant and the wastewater.

[0009] Preferably, the hydraulic cylinder is provided with a pair and is symmetrically distributed on the left and right sides of the sedimentation tank, the hydraulic cylinder is installed on the side of the sedimentation tank through a fixing plate, the hydraulic cylinder is vertically arranged upward and is connected to a "cross" shaped lifting plate at the end of its piston rod, the upper side of the lifting plate is connected to a T-shaped inlet and outlet pipe through a clamp, the lower end of the inlet and outlet pipe is coaxially connected to a plurality of transition pipes, each transition pipe is symmetrically provided with a pair of transition grooves on the left and right sides, and a sealing cover is hingedly connected to the transition groove, a float is installed on the outside of the closing cover, a sealing block is slidably connected to the inside of the transition pipe, and a hinge strip is connected between the sealing block and the sealing cover, the lower side of the lowest transition pipe is coaxially connected to a connecting pipe, and a sealing plug is rotatably connected to the lower end of the connecting pipe.

[0010] Preferably, a pair of spiral grooves are symmetrically provided at the center of the outer side of the connecting pipe, a sliding ring is slidably connected to the outside of the connecting pipe, and a pair of sliding pins are symmetrically connected to the inner side of the sliding ring, the outer side of the sliding ring is connected to a lifting ring through a one-way bearing, and a pair of lifting columns are symmetrically connected to the outer side of the lifting ring, a T-shaped lifting frame is connected to the lifting column, and a sliding groove is provided at the upper end of the lifting frame, the motor is provided with a pair of and symmetrically distributed above the lifting plate front and back, the motor is installed on the upper side of the lifting plate through a fixed seat, and an eccentric wheel is keyed to the output end of the motor, an eccentric shaft is eccentrically connected to the eccentric wheel, and the eccentric shaft is slidably connected to the sliding groove.

[0011] Preferably, a pair of water grooves are symmetrically provided on the front and rear sides of the sealing block, and a pair of sealing strips are symmetrically connected to the inner side of the transition pipe, and the sealing strips on the same side are relatively slidably connected to the water grooves.

[0012] Preferably, the connecting pipe is slidably connected to a piston block inside, and a number of one-way valves are evenly connected to the piston block. The piston block and the sliding ring are connected by magnetic force. The upper part of the connecting pipe is symmetrically connected to two access pipes, and the upper ends of the access pipes are respectively connected to the water purification tank and the medicine tank.

[0013] Preferably, a plurality of vibration motors are evenly installed on the bottom of the sedimentation tank.

[0014] Compared with the prior art, the present invention has the following advantages:

[0015] 1. The unblocking mechanism of the present invention can facilitate the pumping in of wastewater, the pumping out of clean water, and the discharge of sediment. Before treatment, the piston rod of the hydraulic cylinder contracts and drives the sealing plug at the lower end of the connecting pipe to seal the mud discharge port, and then the wastewater is pumped into the transition pipe through the inlet and outlet pipes, and flows into the sedimentation tank through the transition groove. After treatment, the clean water is sucked into the transition pipe through the transition groove, and pumped out of the sedimentation tank through the inlet and outlet pipes, and then the piston rod of the hydraulic cylinder extends and drives the sealing plug at the lower end of the connecting pipe to suspend above the mud discharge port, and the sediment is discharged to the outside of the sedimentation tank through the mud discharge port.

[0016] 2. The cleaning mechanism of the present invention can facilitate the fusion of wastewater and reagents and the cleaning of sediments. The motor drives the lifting frame to lift and lower through the eccentric wheel and the eccentric shaft. When the lifting frame descends, the one-way bearing between the sliding ring and the lifting ring is in a stuck state, which can drive the sliding pin on the sliding ring to descend vertically and push the cleaning strip on the connecting pipe to rotate, thereby automatically cleaning the sediment at the bottom of the sedimentation tank, or automatically mixing the wastewater and precipitant in the sedimentation tank. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the present invention.

[0018] Figure 2 It is a schematic diagram of the overall three-dimensional structure of the sedimentation tank.

[0019] Figure 3 It is a schematic diagram of the overall three-dimensional structure of the unblocking mechanism.

[0020] Figure 4 It is a structural schematic diagram of the local first-person perspective of the unblocking mechanism.

[0021] Figure 5 It is a structural schematic diagram of the local second perspective of the unblocking mechanism.

[0022] Figure 6 It is a schematic diagram of the overall three-dimensional structure of the cleaning mechanism.

[0023] Figure 7 This is a schematic diagram of the structure of the cleaning mechanism from a partial first-person perspective.

[0024] Figure 8 It is a structural schematic diagram of the cleaning mechanism from a partial second perspective.

[0025] Fig. 9 This is a schematic diagram of the structure of the cleaning mechanism from a partial third-person perspective.

[0026] in:

[0027] 10-sedimentation tank; 10a-inlet and outlet; 10b-sludge outlet;

[0028] 20-unblocking mechanism; 201-hydraulic cylinder; 202-fixed plate; 203-lifting plate; 204-inlet and outlet pipes; 205-transition pipe; 205a-transition groove; 206-sealing cover; 207-floating ball; 208-sealing block; 208a-water channel; 209-hinged strip; 210-sealing strip; 211-connecting pipe; 211a-spiral groove; 212-sealing plug;

[0029] 30-cleaning mechanism; 301-piston block; 302-check valve; 303-access pipe; 304-cleaning strip; 304a-cleaning hole; 305-sliding ring; 306-sliding pin; 307-lifting ring; 308-lifting column; 309-lifting frame; 309a-sliding groove; 310-motor; 311-fixed seat; 312-eccentric wheel; 313-eccentric shaft; 314-vibration motor. DETAILED DESCRIPTION

[0030] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0031] like Figures 1 to 9 As shown, a wastewater treatment device for chemical production includes a sedimentation tank 10, a blocking mechanism 20 and a cleaning mechanism 30, wherein:

[0032] The upper and lower ends of the sedimentation tank 10 are respectively an inlet and outlet 10a and a mud discharge port 10b. The inlet and outlet 10a is used as a pump inlet for wastewater and a pump outlet for clean water, and the mud discharge port 10b is used as a discharge port for sediment.

[0033] The blocking mechanism 20 is disposed inside the sedimentation tank 10 and includes a hydraulic cylinder 201 and a sealing plug 212. The sealing plug 212 is driven up and down by the hydraulic cylinder 201 and is used to open or block the mud discharge port 10b.

[0034] The cleaning mechanism 30 is arranged at the bottom of the sedimentation tank 10 and includes a cleaning bar 304 and a motor 310. The cleaning bar 304 is driven by the motor 310 to rotate and is used to scrape off the sediment in the sedimentation tank 10, or to stir the wastewater and precipitant in the sedimentation tank 10. When scraping, the cleaning hole 304a on the bottom of the cleaning bar 304 is used to spray out a high-speed airflow containing clean water and completely blow off the sediment at the bottom of the tank. When stirring, the cleaning hole 304a on the bottom of the cleaning bar 304 is used to spray out a high-speed airflow containing precipitant and accelerate the fusion of the precipitant and wastewater.

[0035] In this embodiment, the hydraulic cylinder 201 is provided with a pair and symmetrically distributed on the left and right sides of the sedimentation tank 10. The hydraulic cylinder 201 is installed on the side of the sedimentation tank 10 through a fixing plate 202. The hydraulic cylinder 201 is vertically arranged upward and connected to a "cross" shaped lifting plate 203 at the end of its piston rod. The upper side of the lifting plate 203 is connected to a T-shaped inlet and outlet pipe 204 through a clamp. The lower end of the inlet and outlet pipe 204 is coaxially connected to a plurality of transition pipes 205, and each transition pipe 205 is connected to a plurality of transition pipes 205. A pair of transition grooves 205a are symmetrically arranged on the left and right sides of the 05, and a sealing cover 206 is hingedly connected at the transition groove 205a, a floating ball 207 is installed on the outside of the sealing cover 206, a sealing block 208 is slidably connected inside the transition pipe 205, and a hinge bar 209 is connected between the sealing block 208 and the sealing cover 206, a connecting pipe 211 is coaxially connected to the lower side of the lowest transition pipe 205, and a sealing plug 212 is rotatably connected to the lower end of the connecting pipe 211. Before processing, the piston rod of the hydraulic cylinder 201 contracts and drives the sealing plug 212 at the lower end of the connecting pipe 211 to seal the mud discharge port 10b, and then the wastewater is pumped into the transition pipe 205 through the inlet and outlet pipes 204, and flows into the sedimentation tank 10 from the transition groove 205a. After treatment, the clean water is sucked into the transition pipe 205 through the transition groove 205a, and is pumped out of the sedimentation tank 10 by the inlet and outlet pipes 204. The piston rod of the hydraulic cylinder 201 is extended and drives the sealing plug 212 at the lower end of the connecting pipe 211 to be suspended above the mud discharge port 10b, and the sediment is discharged to the outside of the sedimentation tank 10 through the mud discharge port 10b.

[0036] In this embodiment, a pair of spiral grooves 211a are symmetrically provided at the center of the outer side of the connecting tube 211, a sliding ring 305 is slidably connected to the outside of the connecting tube 211, and a pair of sliding pins 306 are symmetrically connected to the inner side of the sliding ring 305, a lifting ring 307 is connected to the outer side of the sliding ring 305 through a one-way bearing, and a pair of lifting columns 308 are symmetrically connected to the outer side of the lifting ring 307, a T-shaped lifting frame 309 is connected to the lifting column 308, and a sliding groove 309a is provided at the upper end of the lifting frame 309, the motor 310 is provided with a pair of front and rear symmetrically distributed above the lifting plate 203, the motor 310 is installed on the upper side of the lifting plate 203 through a fixing seat 311, and an eccentric wheel 312 is keyed to the output end of the motor 310, an eccentric shaft 313 is eccentrically connected to the eccentric wheel 312, and the eccentric shaft 313 is slidably connected to the sliding groove 309a. The motor 310 drives the lifting frame 309 to move up and down through the eccentric wheel 312 and the eccentric shaft 313. When the lifting frame 309 descends, since the one-way bearing between the sliding ring 305 and the lifting ring 307 is in a stuck state, the sliding pin 306 on the sliding ring 305 can be driven to vertically descend, and the cleaning bar 304 on the connecting pipe 211 can be pushed to rotate, thereby automatically cleaning the sediment at the bottom of the sedimentation tank 10, or automatically mixing the wastewater and the precipitant in the sedimentation tank 10; when the lifting frame 309 rises, since the one-way bearing between the sliding ring 305 and the lifting ring 307 is in an active state, the sliding pin 306 on the sliding ring 305 can be driven to spirally rise, and will not hinder the cleaning bar 304 on the connecting pipe 211 from continuing to rotate.

[0037] In this embodiment, a pair of water grooves 208a are symmetrically arranged on the front and rear sides of the sealing block 208, and a pair of sealing strips 210 are symmetrically connected to the front and rear sides of the inner side of the transition pipe 205, and the sealing strips 210 on the same side are relatively slidably connected to the water grooves 208a. When the sealing cover 206 rises to a horizontally unfolded state under the buoyancy of the float 207, the sealing block 208 rises to the highest point under the action of the hinge strips 209 on both sides, and the sealing strips 210 are blocked to the water grooves 208a, so that the clean water can be pumped out gradually from top to bottom, thereby preventing the sediment in the lower layer from being pumped out.

[0038] In this embodiment, the piston block 301 is slidably connected inside the connecting pipe 211, and a plurality of one-way valves 302 are evenly connected to the piston block 301. The piston block 301 is connected to the sliding ring 305 by magnetic force. The upper part of the connecting pipe 211 is symmetrically connected to two access pipes 211, and the upper ends of the access pipes 211 are respectively connected to the clean water pool and the medicine pool. When the piston block 301 moves upward synchronously under the action of magnetic force, the one-way valve 302 on the piston block 301 is in a conducting state, and the clean water or medicine (precipitant) connected to the access pipe 211 is passed to the bottom of the piston block 301. When the piston block 301 moves downward synchronously under the action of magnetic force, the one-way valve 302 on the piston block 301 is in a blocking state, and the clean water or medicine (precipitant) in the connecting pipe 211 is squeezed into the cleaning strip 304, and sprayed to the bottom of the sedimentation tank 10 by the cleaning hole 304a on the cleaning strip 304.

[0039] In this embodiment, a plurality of vibration motors 314 are evenly installed on the bottom of the sedimentation tank 10. When the mud discharge port 10b is in the on state, the sedimentation tank 10 is driven to vibrate by the vibration motor 314, and the sediment at the bottom of the tank is shaken off through the mud discharge port 10b.

[0040] The working principle of this wastewater treatment equipment for chemical production:

[0041] S1: The piston rod of the hydraulic cylinder 201 contracts and drives the sealing plug 212 at the lower end of the connecting pipe 211 to seal the mud discharge port 10b, and then the wastewater is pumped into the transition pipe 205 through the inlet and outlet pipes 204, and flows into the sedimentation tank 10 through the transition groove 205a, and then an appropriate amount of precipitant is added to the sedimentation tank 10.

[0042] S2: The motor 310 drives the lifting frame 309 to move up and down through the eccentric wheel 312 and the eccentric shaft 313. When the lifting frame 309 descends, since the one-way bearing between the sliding ring 305 and the lifting ring 307 is in a stuck state, the sliding pin 306 on the sliding ring 305 can be driven to vertically descend, and the cleaning bar 304 on the connecting pipe 211 is pushed to rotate, thereby automatically mixing the wastewater and the precipitant in the sedimentation tank 10; when the lifting frame 309 rises, since the one-way bearing between the sliding ring 305 and the lifting ring 307 is in an active state, the sliding pin 306 on the sliding ring 305 can be driven to spirally rise, and will not hinder the cleaning bar 304 on the connecting pipe 211 from continuing to rotate.

[0043] S3: Let the sedimentation tank 10 stand for a period of time to obtain clean water in the upper and middle layers and sediment in the lower layer.

[0044] S4: Clean water is sucked into the transition pipe 205 through the transition groove 205a, and is pumped out of the sedimentation tank 10 through the inlet and outlet pipes 204. The piston rod of the hydraulic cylinder 201 is extended and drives the sealing plug 212 at the lower end of the connecting pipe 211 to be suspended above the mud discharge port 10b, and the sediment is discharged to the outside of the sedimentation tank 10 through the mud discharge port 10b.

[0045] S5: The motor 310 drives the lifting frame 309 to move up and down through the eccentric wheel 312 and the eccentric shaft 313. When the lifting frame 309 descends, since the one-way bearing between the sliding ring 305 and the lifting ring 307 is in a stuck state, the sliding pin 306 on the sliding ring 305 can be driven to descend vertically, and the cleaning bar 304 on the connecting pipe 211 is pushed to rotate, thereby automatically cleaning the sediment at the bottom of the sedimentation tank 10; when the lifting frame 309 rises, since the one-way bearing between the sliding ring 305 and the lifting ring 307 is in an active state, the sliding pin 306 on the sliding ring 305 can be driven to spirally rise, and will not hinder the cleaning bar 304 on the connecting pipe 211 from continuing to rotate.

[0046] Therefore, the embodiments disclosed above are only illustrative in all aspects and are not exclusive. All changes within the scope of the present invention or within the scope equivalent to the present invention are included in the present invention.

Claims

1. A wastewater treatment equipment for chemical production, characterized in that: It comprises a sedimentation tank (10), a blocking-clearing mechanism (20) and a cleaning mechanism (30), wherein: The upper and lower ends of the sedimentation tank (10) are respectively an inlet and outlet (10a) and a mud discharge port (10b), wherein the inlet and outlet (10a) are used as a pump inlet for waste water and a pump outlet for clean water, and the mud discharge port (10b) is used as a discharge port for sediment; The blocking mechanism (20) is arranged inside the sedimentation tank (10) and comprises a hydraulic cylinder (201) and a sealing plug (212). The sealing plug (212) is driven to rise and fall by the hydraulic cylinder (201) and is used to open or block the mud discharge port (10b); The cleaning mechanism (30) is arranged at the bottom of the sedimentation tank (10) and comprises a cleaning bar (304) and a motor (310). The cleaning bar (304) is driven by the motor (310) to rotate and is used to scrape off the sediment in the sedimentation tank (10), or to stir the wastewater and the precipitant in the sedimentation tank (10). When scraping, a high-speed airflow containing clean water is sprayed out through the cleaning holes (304a) on the bottom surface of the cleaning bar (304) to completely blow off the sediment at the bottom of the tank. When stirring, a high-speed airflow containing the precipitant is sprayed out through the cleaning holes (304a) on the bottom surface of the cleaning bar (304) to accelerate the fusion of the precipitant and the wastewater.

2. A chemical production wastewater treatment equipment according to claim 1, characterized in that: The hydraulic cylinder (201) is provided with a pair of hydraulic cylinders (201) symmetrically distributed on the left and right sides of the sedimentation tank (10). The hydraulic cylinder (201) is installed on the side of the sedimentation tank (10) through a fixing plate (202). The hydraulic cylinder (201) is vertically arranged upward and a "cross" shaped lifting plate (203) is connected to the end of its piston rod. The upper side of the lifting plate (203) is connected to a T-shaped inlet and outlet pipe (204) through a clamp. The lower end of the inlet and outlet pipe (204) is coaxially connected to a plurality of transition pipes (205). The left and right ends of each transition pipe (205) are connected to the hydraulic cylinder (201). A pair of transition grooves (205a) are symmetrically provided on both sides, and a sealing cover (206) is hingedly connected to the transition groove (205a), a floating ball (207) is installed on the outer side of the sealing cover (206), a sealing block (208) is slidably connected to the inside of the transition pipe (205), and a hinge strip (209) is connected between the sealing block (208) and the sealing cover (206), and a connecting pipe (211) is coaxially connected to the lower side of the lowest transition pipe (205), and a sealing plug (212) is rotatably connected to the lower end of the connecting pipe (211).

3. A chemical production wastewater treatment equipment according to claim 2, characterized in that: A pair of spiral grooves (211a) are symmetrically arranged at the center of the outer side of the connecting tube (211); a sliding ring (305) is slidably connected to the outer side of the connecting tube (211); a pair of sliding pins (306) are symmetrically connected to the inner side of the sliding ring (305); a lifting ring (307) is connected to the outer side of the sliding ring (305) via a one-way bearing; a pair of lifting columns (308) are symmetrically connected to the outer side of the lifting ring (307); a T-shaped lifting frame (309) is connected to the lifting column (308). , and a sliding groove (309a) is provided at the upper end of the lifting frame (309), the motor (310) is provided with a pair of motors (310) and symmetrically distributed front and rear above the lifting plate (203), the motor (310) is installed on the upper side of the lifting plate (203) through a fixing seat (311), and an eccentric wheel (312) is key-connected at the output end of the motor (310), an eccentric shaft (313) is eccentrically connected to the eccentric wheel (312), and the eccentric shaft (313) is slidably connected to the sliding groove (309a).

4. A chemical production wastewater treatment equipment according to claim 2, characterized in that: A pair of water grooves (208a) are symmetrically provided on the front and rear sides of the sealing block (208), and a pair of sealing strips (210) are symmetrically connected to the inner side of the transition pipe (205), and the sealing strips (210) on the same side are relatively slidably connected to the water grooves (208a).

5. A chemical production wastewater treatment equipment according to claim 2, characterized in that: The connecting pipe (211) is slidably connected to a piston block (301) inside, and a plurality of one-way valves (302) are evenly connected to the piston block (301). The piston block (301) and the sliding ring (305) are connected by magnetic force. The upper part of the connecting pipe (211) is symmetrically connected to two access pipes (211), and the upper ends of the access pipes (211) are respectively connected to a water purification tank and a medicine tank.

6. A chemical production wastewater treatment equipment according to claim 1, characterized in that: A plurality of vibration motors (314) are evenly mounted on the bottom of the sedimentation tank (10).

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