A coke quenching wastewater treatment device and use method thereof

Abstract

The invention discloses a quenching wastewater treatment device and a use method thereof, belonging to the technical field of quenching wastewater treatment, comprising a bottom plate, a mixing reaction pool fixedly arranged on the bottom plate, a stirring component and a driving component arranged on the mixing reaction pool, a concentration precipitation component arranged on the bottom plate, the mixing reaction pool is divided into four reaction pools by arranging four flow-changing baffles, and the flow direction of water is changed by the flow-changing baffles to increase the flow path, thereby increasing the reaction time, the mutual cooperation of the stirring component and the driving component can perform multi-stage stirring on the mixing reaction pool, the rotation positions of two adjacent stirring circular plates are different, thereby further disrupting the water flow rotation direction inside the mixing reaction pool, improving the reagent mixing effect, and the mutual cooperation of the stirring component, the driving component and the concentration precipitation component can improve the automation degree of the quenching wastewater treatment, and realize the recycling of the quenching wastewater.

Description

Technical Field

[0001] The invention relates to the technical field of coke quenching wastewater treatment, and in particular to a coke quenching wastewater treatment device and a use method thereof. Background Art

[0002] Coke quenching wastewater is produced from the water quenching process in the coking plant. The quenching process is to use water to spray red coke at about 1000℃ to cool it down. When water comes into contact with red coke, related substances will be washed into the quenching wastewater. At the same time, the quenching process carried out in the open air will produce a series of reactions due to the contact between water and air, generating a variety of pollutants that enter the quenching wastewater.

[0003] The Chinese patent application with the announcement number CN213327074U discloses a treatment device for the reuse of quenching wastewater, comprising a base, a treatment box, a stirring mechanism and an anti-interference component, wherein the base is a horizontally arranged rectangular plate, a rectangular treatment box is horizontally fixedly arranged in the middle of the top surface of the base, an inlet pipe and a slag discharge pipe are respectively transversely fixedly connected to the upper and lower parts of one side of the treatment box, and an outlet pipe is transversely fixedly connected to the lower part of the other side of the treatment box; a rectangular motor box is vertically arranged in the middle of one side of the top surface of the treatment box, and a motor is vertically fixed in the motor box; a first partition and a second partition are vertically fixedly connected to the two sides of the middle part of the treatment box, respectively, and the interior of the treatment box is divided into a stirring chamber, a sedimentation chamber and a filtration chamber from left to right in sequence by the first partition and the second partition, and the stirring mechanism is arranged in the stirring chamber. Although the above patent can realize the treatment of quenching wastewater, the stirring and mixing process is relatively single, and sufficient mixing cannot be achieved, and it is not convenient to clean the interior, so the present invention provides a quenching wastewater treatment device and a method for using the same. Summary of the invention

[0004] In view of the defects in the prior art, the present invention provides a quenching wastewater treatment device and a method for using the same, which overcomes the problems that the stirring and mixing process is relatively simple, sufficient mixing cannot be achieved, and the internal cleaning is inconvenient.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical scheme: a quenching wastewater treatment device, comprising a bottom plate, a mixing reaction pool is fixedly arranged on the bottom plate, a stirring assembly and a driving assembly are arranged on the mixing reaction pool, the stirring assembly comprises four stirring bases, a stirring gear ring is fixedly installed at the lower end of the stirring base, a stirring strip plate is rotatably installed on the stirring gear ring, a stirring circular plate is rotatably installed on the stirring strip plate, a stirring column gear and four stirring rods are fixedly arranged on the stirring circular plate, the stirring column gear and the stirring gear ring constitute a gear pair, the driving assembly comprises a driving slide plate 1 and a driving slide plate 2, two driving slide seats are fixedly arranged on the driving slide plate 1 and the driving slide plate 2, the driving slide seat and the stirring base are slidably matched, a concentrating and settling assembly is arranged on the bottom plate, the concentrating and settling assembly comprises a concentrating bottom circular pool, the lower end of the concentrating bottom circular pool is connected to the lower end of the mixing reaction pool, a precipitation annular frame is slidably installed on the concentrating bottom circular pool, and an inclined pipe group is fixedly installed on the precipitation annular frame.

[0006] Furthermore, the stirring assembly also includes a lifting slide and a crank rotating plate. The stirring base is fixedly connected to the lifting slide. A crank circular plate is fixedly arranged on the side of the stirring strip plate. One end of the crank rotating plate is rotatably connected to the driving slide, and the other end of the crank rotating plate is rotatably connected to the crank circular plate at an eccentric position of the crank circular plate.

[0007] Furthermore, the driving assembly also includes a driving base and two auxiliary spur racks. The driving base and the lifting slide are slidably matched. A lifting screw is rotatably installed on the driving base. The lifting slide and the lifting screw form a spiral pair. A spring is arranged between the driving slide and the stirring base.

[0008] Furthermore, driving slide plate one and driving slide plate two are slidably matched, wherein one auxiliary spur rack is slidably mounted on driving slide plate one, and the other auxiliary spur rack is fixedly mounted on driving slide plate two, a spring sheet is arranged between the auxiliary spur rack on driving slide plate one and driving slide plate one, an auxiliary column gear is rotatably mounted on the lifting slide plate, and the auxiliary column gear and the two auxiliary spur racks form a gear pair when engaged.

[0009] Furthermore, a driving electric cylinder is fixedly installed on the lifting slide, a driving base plate is fixedly arranged on the output shaft of the driving electric cylinder, an active spur rack and a trapezoidal plate are fixedly arranged on the driving base plate, the trapezoidal plate is in contact with an auxiliary spur rack on the driving slide, an active column gear is fixedly arranged on the side of the auxiliary column gear, and the active spur rack and the active column gear form a gear pair when engaged.

[0010] Furthermore, a shift slide is slidably installed on the driving slide 2, a spring is arranged between the driving slide 2 and the shift slide, a strip driving turn plate is rotatably installed on the lifting slide, the shift slide and the strip driving turn plate are movably connected, and a shift pillar is fixedly arranged on the side of the mixing reaction tank.

[0011] Furthermore, the concentration and sedimentation assembly also includes a sedimentation gear ring, which is rotatably mounted on the sedimentation ring frame, the lifting slide plate and the sedimentation ring frame are fixedly connected, four rack stirring strips are fixedly arranged at the lower end of the sedimentation gear ring, a sludge conduit is fixedly arranged at the lower end of the concentration and sedimentation circular pool, a sludge pump and a filter press are fixedly mounted on the bottom plate, the sludge pump and the filter press are connected, the sludge pump and the sludge conduit are connected, and a secondary water outlet and a sludge discharge pipe are arranged on the filter press.

[0012] Furthermore, four flow-changing baffles are arranged in the mixing reaction pool, which divide the mixing reaction pool into four reaction pools. A flocculant medicine barrel, an acid medicine barrel and an alkaline medicine barrel are fixedly arranged on the bottom plate. The flocculant medicine barrel, the acid medicine barrel and the alkaline medicine barrel are all provided with water pumps and connected to the mixing reaction pool. A first-level water outlet is arranged at the upper end of the concentrated sedimentation circular pool, and a water inlet is arranged at the upper end of the mixing reaction pool.

[0013] A method for using a coke quenching wastewater treatment device comprises the following steps:

[0014] Step 1: drive the lifting screw to rotate, so that the lifting slide slides, so that the stirring rod and the inclined tube group are submerged in the water, start the driving electric cylinder, and drive the active column gear to rotate under the action of the active spur rack, so that the driving slide plate 1 and the driving slide plate 2 slide relative to each other, that is, under the action of the stirring gear ring, the stirring circular plate rotates and revolves, so as to stir the mixed reaction pool, drive the sedimentation gear ring to rotate, so that the rack stirring strip plate stirs the bottom of the concentrated sedimentation circular pool, and start the sludge pump and the filter press;

[0015] Step 2: the quenching wastewater is added to the mixing reaction tank through the water inlet, the flocculant is added to the mixing reaction tank through the water pump on the flocculant medicine barrel, and the acid or alkali is added to the mixing reaction tank through the water pump on the acid medicine barrel or the water pump on the alkaline medicine barrel to adjust the pH value. The quenching wastewater passes through the mixing reaction tank divided into 4 pools by the flow diversion partition, and under the action of the four-stage stirring, the feed liquid and the reagent are fully mixed, and the rotation positions of the two adjacent stirring circular plates are different, thereby further disrupting the water flow rotation direction inside the mixing reaction tank and improving the reagent mixing effect;

[0016] Step 3: The liquid mixed with the reagent enters the concentrated bottom circular tank, where it is precipitated and clarified under the action of the rack stirring strips and the inclined tube group. The overflow water returns to the quenching water tank through the primary outlet, completing the closed-loop utilization of water.

[0017] Step 4: After the inclined tube group is concentrated, the sludge settled at the bottom is pumped into the filter press by the sludge pump. After the filter press treatment, the filtrate returns to the quenching water tank from the secondary outlet for recycling, and the compressed sludge is discharged from the sludge discharge pipe.

[0018] Compared with the prior art, the present invention has the following beneficial effects: (1) The present invention divides the mixed reaction pool into four reaction pools by setting four flow-changing baffles, and changes the flow direction of the water flow through the flow-changing baffles, thereby increasing the flow path and improving the reaction time. (2) The present invention can perform multi-stage stirring on the mixed reaction pool by setting the mutual cooperation of the stirring component and the driving component. The rotation positions of two adjacent stirring circular plates are different, thereby further disrupting the water flow rotation direction inside the mixed reaction pool and improving the reagent mixing effect. (3) The present invention improves the degree of automation of quenching wastewater treatment and realizes the recycling of quenching wastewater by the mutual cooperation of the stirring component, the driving component and the concentration and precipitation component. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0020] Figure 2 for Figure 1 A local enlarged schematic diagram of point A in the middle.

[0021] Figure 3 It is a schematic diagram of the structure of the driving assembly of the present invention.

[0022] Figure 4 It is a schematic diagram of the structure of the stirring component and the driving component of the present invention.

[0023] Figure 5 for Figure 4 A local enlarged schematic diagram of point B in the middle.

[0024] Figure 6 It is a schematic structural diagram of the stirring assembly of the present invention.

[0025] Figure 7 It is a schematic structural diagram of the mixing reaction tank of the present invention.

[0026] Figure 8 for Figure 7 A partial enlarged schematic diagram of point C in the middle.

[0027] Fig. 9 It is a schematic diagram of the structure of the concentration and precipitation component of the present invention.

[0028] Fig.10 for Fig. 9 A local enlarged schematic diagram of point D in the middle.

[0029] Fig.11 It is a cross-sectional view of the overall structure of the present invention.

[0030] Figure numerals: 101-bottom plate; 102-mixing reaction tank; 103-water inlet; 104-flocculant medicine barrel; 105-concentrated sedimentation round tank; 106-primary water outlet; 107-sludge pump; 108-filter press; 109-secondary water outlet; 110-flow diversion baffle; 111-lifting motor; 112-lifting screw rod; 113-shifting support; 114-driving base; 115-lifting slide plate; 116-driving slide plate 1; 117-driving slide plate 2; 118-shifting slide seat; 119-strip driving rotating plate; 120-stirring gear ring; 121-stirring base; 122-stirring circular plate; 123-stirring rod; 1 24-driving slide; 125-crank rotating plate; 126-crank circular plate; 127-stirring strip plate; 128-stirring column gear; 129-driving electric cylinder; 130-driving bottom plate; 131-active spur rack; 132-trapezoidal plate; 133-auxiliary spur rack; 134-spring sheet; 135-active column gear; 136-auxiliary column gear; 137-mud discharge pipe; 138-sedimentation ring frame; 139-inclined tube group; 140-sludge conduit; 141-sedimentation gear ring; 142-rack stirring strip plate; 143-sedimentation drive motor; 144-sedimentation drive column gear; 145-acid agent barrel; 146-alkaline agent barrel. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] Example: Reference Figure 1-Figure 11A quenching wastewater treatment device includes a bottom plate 101, a mixing reaction tank 102 is fixedly arranged on the bottom plate 101, a stirring assembly is arranged on the mixing reaction tank 102, and the stirring assembly also includes a lifting slide 115 and a crank rotating plate 125, four stirring bases 121 are fixedly arranged on the lifting slide 115, a stirring gear ring 120 is fixedly installed at the lower end of the stirring base 121, a stirring strip plate 127 is rotatably installed on the stirring gear ring 120, a stirring circular plate 122 is rotatably installed on the stirring strip plate 127, and the stirring circular plate 121 is fixedly installed on the stirring base 121. 2 is fixedly provided with a stirring column gear 128 and four stirring rods 123, the stirring column gear 128 and the stirring gear ring 120 constitute a gear pair, a driving slide 124 is slidably installed on the stirring base 121, a spring is provided between the driving slide 124 and the stirring base 121, a crank circular plate 126 is fixedly provided on the side of the stirring strip plate 127, one end of the crank rotating plate 125 is rotatably connected to the driving slide 124, and the other end of the crank rotating plate 125 is rotatably connected to the crank circular plate 126 at an eccentric position of the crank circular plate 126.

[0033] By driving the driving slide 124 to slide relative to the stirring base 121, the crank circular plate 126 is driven to rotate under the action of the crank rotating plate 125, that is, the stirring strip plate 127 is driven to rotate, and then the stirring circular plate 122 is driven to revolve around the stirring gear ring 120. Under the action of the stirring column gear 128 and the stirring gear ring 120, the stirring circular plate 122 rotates while rotating.

[0034] A driving assembly is provided on the mixing reaction tank 102, and the driving assembly includes a driving slide 116, a driving slide 2 117, and two auxiliary spur racks 133. The driving slide 116 and the driving slide 2 117 are fixedly connected to two driving slides 124 arranged at intervals. A driving base 114 is fixedly installed on the side of the mixing reaction tank 102. The driving base 114 and the lifting slide 115 are slidably matched. A lifting screw 112 is rotatably installed on the driving base 114. A lifting motor 111 is fixedly provided on the driving base 114. The output shaft of the lifting motor 111 is fixedly connected to the lifting screw 112. The lifting slide 115 and the lifting screw 112 form a spiral pair.

[0035] The driving slide 116 and the driving slide 2 117 are in sliding cooperation, one of the auxiliary spur racks 133 is slidably mounted on the driving slide 116, and the other auxiliary spur rack 133 is fixedly mounted on the driving slide 2 117. A spring sheet 134 is provided between the auxiliary spur rack 133 on the driving slide 116 and the driving slide 116. An auxiliary column gear 136 is rotatably mounted on the lifting slide 115. When the auxiliary column gear 136 and the two auxiliary spur racks 133 are engaged, they both form a gear pair. A driving electric cylinder 129 is fixedly mounted on the lifting slide 115, and the output shaft of the driving electric cylinder 129 is fixedly mounted on the lifting slide 115. A driving base plate 130 is provided, on which an active spur rack 131 and a trapezoidal plate 132 are fixedly provided, the lower end of the trapezoidal plate 132 is in contact with an auxiliary spur rack 133 on the driving slide 116, an active column gear 135 is fixedly provided on the side of the auxiliary column gear 136, and the active spur rack 131 and the active column gear 135 form a gear pair when engaged, and a strip-shaped through hole is provided on the driving slide 117, and the strip-shaped through hole on the driving slide 117 is used to prevent the driving slide 117 from being restricted from sliding by the active column gear 135 and the auxiliary column gear 136 when the driving slide 117 slides.

[0036] A shift slide 118 is slidably installed on the driving slide 117, and a spring is arranged between the driving slide 117 and the shift slide 118. A bar-shaped driving rotating plate 119 is rotatably installed on the lifting slide 115, and a bar-shaped through hole is arranged at one end of the bar-shaped driving rotating plate 119. The shift slide 118 and the bar-shaped driving rotating plate 119 are movably connected, and the shift slide 118 moves in the bar-shaped through hole of the bar-shaped driving rotating plate 119. A shift pillar 113 is fixedly arranged on the side of the mixing reaction tank 102.

[0037] In the initial state, the spring sheet 134 is not compressed, that is, the auxiliary column gear 136 and the auxiliary spur rack 133 on the driving slide 116 are not engaged, the auxiliary column gear 136 and the auxiliary spur rack 133 on the driving slide 117 are engaged, the active column gear 135 is not engaged with the active spur rack 131, and the stirring column gear 128 and the stirring gear ring 120 are meshed at the uppermost position of the stirring gear ring 120.

[0038] Start the lifting motor 111 to drive the lifting screw 112 to rotate, and drive the lifting slide 115 to move downward, so that the lower end of the bar-shaped driving turn plate 119 contacts the shifting pillar 113, and then drives the bar-shaped driving turn plate 119 to rotate, and under the action of the shifting slide 118, the driving slide 117 slides relative to the lifting slide 115, that is, the two driving slides 124 on the driving slide 117 slide relative to the stirring base 121, and the spring between the stirring base 121 and the driving slide 124 is compressed, so that the spring between the driving slide 117 and the shifting slide 118 is compressed, and then under the action of the auxiliary spur rack 133 on the driving slide 117, the auxiliary column gear 136 is driven to rotate.

[0039] When the lifting slide 115 moves to the lowermost end, the stirring rod 123 is completely immersed in the water in the mixing reaction tank 102. At this time, under the action of the displacement support 113 and the strip driving turn plate 119, the two driving slides 124 on the driving slide 117 drive the crank circular plate 126 to rotate 180 degrees. That is, at this time, the two stirring circular plates 122 corresponding to the driving slide 117 are located at the lowermost position where the stirring gear ring 120 and the stirring column gear 128 are meshed.

[0040] The driving electric cylinder 129 is started again, so that the driving base plate 130 moves downward, that is, the active spur rack 131 and the trapezoidal plate 132 move downward. Under the action of the trapezoidal plate 132, the auxiliary spur rack 133 on the driving slide plate 116 slides, the spring sheet 134 is compressed, and the auxiliary spur rack 133 on the driving slide plate 116 meshes with the auxiliary column gear 136. At this time, the active column gear 135 has not yet engaged with the active spur rack 131. The driving base plate 130 continues to move downward, and the active spur rack 131 engages with the active column gear 135, driving the active column gear 135 to rotate, that is, driving the auxiliary column gear 136. The rotation causes the driving slide 116 to move downward and the driving slide 2 117 to move upward, that is, the driving slide 2 117 slides relative to the shift slide 118, and the spring between the driving slide 2 117 and the shift slide 118 is compressed, which realizes driving the four stirring circular plates 122 to rotate and revolve, and the two stirring circular plates 122 corresponding to the driving slide 116 rotate from top to bottom, and the two stirring circular plates 122 corresponding to the driving slide 2 117 rotate from bottom to top, thereby realizing that the rotation positions of the two adjacent stirring circular plates 122 are different, thereby further disrupting the rotation direction of the water flow and improving the stirring and mixing effect.

[0041] The bottom plate 101 is provided with a concentration sedimentation assembly, which includes a concentration sedimentation circular pool 105. The lower end of the concentration sedimentation circular pool 105 is connected to the lower end of the mixing reaction pool 102. A sedimentation annular frame 138 is slidably mounted on the concentration sedimentation circular pool 105. An inclined tube group 139 is fixedly mounted on the sedimentation annular frame 138. A sedimentation gear ring 141 and a sedimentation drive column gear 144 are rotatably mounted on the sedimentation annular frame 138. A sedimentation drive motor 143 is fixedly mounted on the sedimentation annular frame 138. The output of the sedimentation drive motor 143 is The outlet shaft and the sedimentation driving column gear 144 are fixedly connected, the lifting slide plate 115 and the sedimentation ring frame 138 are fixedly connected, four rack stirring strips 142 are fixedly set at the lower end of the sedimentation gear ring 141, a sludge conduit 140 is fixedly set at the lower end of the concentrated sedimentation circular pool 105, a sludge pump 107 and a filter press 108 are fixedly installed on the bottom plate 101, the sludge pump 107 and the filter press 108 are connected, the sludge pump 107 and the sludge conduit 140 are connected, and the filter press 108 is provided with a secondary water outlet 109 and a sludge discharge pipe 137.

[0042] Four flow-changing baffles 110 are arranged in the mixing reaction pool 102, and the flow-changing baffles 110 divide the mixing reaction pool 102 into four reaction pools. A flocculant medicine barrel 104, an acid medicine barrel 145, and an alkaline medicine barrel 146 are fixedly arranged on the bottom plate 101. The flocculant medicine barrel 104, the acid medicine barrel 145, and the alkaline medicine barrel 146 are all provided with water pumps and connected to the mixing reaction pool 102. A first-level water outlet 106 is arranged at the upper end of the concentrated sedimentation circular pool 105, and a water inlet 103 is arranged at the upper end of the mixing reaction pool 102.

[0043] While the lifting slide 115 moves downward, the sedimentation ring frame 138 moves downward synchronously, so that the inclined tube group 139 is immersed in the water in the concentrated sedimentation circular tank 105, the rack stirring strip 142 is in contact with the lower surface of the concentrated sedimentation circular tank 105, and the rack stirring strip 142 is in contact with the side wall of the concentrated sedimentation circular tank 105. The sedimentation drive motor 143 is started to drive the sedimentation drive column gear 144 to rotate, and then drive the sedimentation gear ring 141 to rotate, so that the rack stirring strip 142 stirs the lower layer of the concentrated sedimentation circular tank 105.

[0044] Working principle: During wastewater treatment, quenching wastewater is added to the mixed reaction tank 102 from the water inlet 103, and the driving electric cylinder 129 is started to drive the driving slide 116 and the driving slide 2 117 to slide, thereby driving the four stirring gear rings 120 to rotate, that is, driving the stirring rod 123 to stir the water flow, and adding flocculant to the mixed reaction tank 102 through the water pump on the flocculant medicine barrel 104, and adding acid or alkali to the mixed reaction tank 102 through the water pump on the acid medicine barrel 145 or the water pump on the alkaline medicine barrel 146 to adjust the pH value. The quenching wastewater passes through the mixed reaction tank 102 divided into four pools by the diverting baffle 110, and in the four-stage stirring Under the action of the precipitate, the slurry and the reagent are fully mixed, and then flow into the concentrated sedimentation circular tank 105, and the sedimentation drive motor 143 is started to drive the sedimentation drive column gear 144 to rotate, that is, the rack stirring strip 142 is driven to stir the lower layer of the concentrated sedimentation circular tank 105. Under the action of the inclined tube group 139, sedimentation and clarification are completed, and the overflow water returns to the quenching water tank through the primary water outlet 106 to complete the closed-loop utilization of water. The sludge in the lower layer of the concentrated sedimentation circular tank 105 passes through the sludge conduit 140 and enters the filter press 108 under the action of the sludge pump 107. After the filtration treatment, the filtrate returns to the quenching water tank from the secondary water outlet 109 for recycling, and the compressed sludge is discharged from the sludge discharge pipe 137.

[0045] When cleaning the inside of the mixing reaction pool 102 and the concentrated sedimentation circular pool 105, start the lifting motor 111 to drive the lifting screw 112 to rotate, and then drive the lifting slide 115 to move upward, so that the stirring gear ring 120 is higher than the upper end surface of the mixing reaction pool 102, so as to facilitate the cleaning of the stirring rod 123 and the inside of the mixing reaction pool 102, and the sedimentation ring frame 138 moves upward synchronously with the lifting slide 115, and at this time, under the action of the sedimentation drive motor 143, the rack stirring bar 142 continues to rotate to clean the inner wall of the concentrated sedimentation circular pool 105, and then the inclined tube group 139 is flushed to complete the cleaning.

[0046] The invention also discloses a method for using the coke quenching wastewater treatment device, which comprises the following steps.

[0047] Step 1: Drive the lifting screw 112 to rotate, so that the lifting slide 115 slides, so that the stirring rod 123 and the inclined tube group 139 are submerged in water, start the driving electric cylinder 129, and drive the active column gear 135 to rotate under the action of the active spur rack 131, so that the driving slide 116 and the driving slide 2 117 slide relative to each other, that is, under the action of the stirring gear ring 120, the stirring circular plate 122 rotates and revolves, so as to stir the mixing reaction tank 102, drive the sedimentation gear ring 141 to rotate, so that the rack stirring strip plate 142 stirs the bottom of the concentrated sedimentation circular tank 105, and start the sludge pump 107 and the filter press 108.

[0048] Step 2: The quenching wastewater is added to the mixing reaction tank 102 through the water inlet 103, and flocculant is added to the mixing reaction tank 102 through the water pump on the flocculant barrel 104. Acid or alkali is added to the mixing reaction tank 102 through the water pump on the acidic agent barrel 145 or the water pump on the alkaline agent barrel 146 to adjust the pH value. The quenching wastewater passes through the mixing reaction tank 102 which is divided into 4 pools by the flow diversion baffle 110, and under the action of the four-stage stirring, the feed liquid and the agent are fully mixed, and the rotation positions of the two adjacent stirring circular plates 122 are different, thereby further disrupting the water flow rotation direction inside the mixing reaction tank 102 and improving the agent mixing effect.

[0049] Step 3: The liquid mixed with the reagent enters the concentrated sedimentation circular tank 105, and is precipitated and clarified under the action of the rack stirring strips 142 and the inclined tube group 139. The overflow water returns to the quenching water tank through the primary outlet 106, completing the closed-loop utilization of water.

[0050] Step 4: After the inclined tube group 139 is concentrated, the sludge precipitated at the bottom is pumped into the filter press 108 by the sludge pump 107. After the filter press treatment, the filtrate returns to the quenching water tank from the secondary outlet 109 for recycling, and the compressed sludge is discharged from the sludge discharge pipe 137.

[0051] The present invention is not limited to the above-mentioned specific implementation modes. Various changes made by technicians in the relevant technical field based on the above-mentioned conception without creative work all fall within the protection scope of the present invention.

Claims

1. A coke quenching wastewater treatment device, comprising a bottom plate (101), on which a mixing reaction tank (102) is fixedly arranged, characterized in that: The mixing reaction tank (102) is provided with a stirring assembly and a driving assembly. The stirring assembly includes four stirring bases (121). A stirring gear ring (120) is fixedly mounted on the lower end of the stirring base (121). A stirring strip plate (127) is rotatably mounted on the stirring gear ring (120). A stirring circular plate (122) is rotatably mounted on the stirring strip plate (127). A stirring column gear (128) and four stirring rods (123) are fixedly mounted on the stirring circular plate (122). The stirring column gear (128) and the stirring gear ring (120) form a gear pair. The driving assembly includes a driving slide plate 1 (116) and a driving slide plate 2 (117). Two driving slide seats (124) are fixedly mounted on the driving slide plate 1 (116) and the driving slide plate 2 (117). The driving slide seats (124) and the stirring base (121) are slidably matched. The bottom plate (101) is provided with a concentration precipitation assembly, which comprises a concentration sedimentation circular pool (105), the lower end of the concentration sedimentation circular pool (105) is connected to the lower end of the mixing reaction pool (102), a precipitation annular frame (138) is slidably mounted on the concentration sedimentation circular pool (105), and an inclined tube group (139) is fixedly mounted on the precipitation annular frame (138); The stirring assembly further comprises a lifting slide plate (115) and a crank rotating plate (125), the stirring base (121) is fixedly connected to the lifting slide plate (115), a crank circular plate (126) is fixedly provided on the side of the stirring strip plate (127), one end of the crank rotating plate (125) is rotatably connected to the driving slide seat (124), and the other end of the crank rotating plate (125) is rotatably connected to the crank circular plate (126) at an eccentric position of the crank circular plate (126); The driving assembly also includes a driving base (114) and two auxiliary spur racks (133); the driving base (114) and the lifting slide (115) are slidably matched; a lifting screw (112) is rotatably mounted on the driving base (114); the lifting slide (115) and the lifting screw (112) form a spiral pair; a spring is provided between the driving slide (124) and the stirring base (121); The driving slide plate 1 (116) and the driving slide plate 2 (117) are slidably matched, wherein one auxiliary spur rack (133) is slidably mounted on the driving slide plate 1 (116), and the other auxiliary spur rack (133) is fixedly mounted on the driving slide plate 2 (117), a spring sheet (134) is provided between the auxiliary spur rack (133) on the driving slide plate 1 (116) and the driving slide plate 1 (116), an auxiliary column gear (136) is rotatably mounted on the lifting slide plate (115), and the auxiliary column gear (136) and the two auxiliary spur racks (133) form a gear pair when they are engaged; The lifting slide plate (115) is fixedly mounted with a driving electric cylinder (129), the output shaft of the driving electric cylinder (129) is fixedly provided with a driving base plate (130), the driving base plate (130) is fixedly provided with an active spur rack (131) and a trapezoidal plate (132), the trapezoidal plate (132) is in contact with an auxiliary spur rack (133) on the driving slide plate (116), an active column gear (135) is fixedly provided on the side of the auxiliary column gear (136), and the active spur rack (131) and the active column gear (135) form a gear pair when they are engaged; A shift slide (118) is slidably mounted on the second driving slide (117), a spring is arranged between the second driving slide (117) and the shift slide (118), a strip-shaped driving rotating plate (119) is rotatably mounted on the lifting slide (115), the shift slide (118) and the strip-shaped driving rotating plate (119) are movably connected, and a shift support (113) is fixedly arranged on the side of the mixing reaction tank (102).

2. A coke quenching wastewater treatment device according to claim 1, characterized in that: The concentration sedimentation assembly also includes a sedimentation gear ring (141), which is rotatably mounted on a sedimentation annular frame (138). The lifting slide plate (115) and the sedimentation annular frame (138) are fixedly connected. Four rack stirring strips (142) are fixedly arranged at the lower end of the sedimentation gear ring (141). A sludge conduit (140) is fixedly arranged at the lower end of the concentration sedimentation circular pool (105). A sludge pump (107) and a filter press (108) are fixedly mounted on the bottom plate (101). The sludge pump (107) and the filter press (108) are connected. The sludge pump (107) and the sludge conduit (140) are connected. The filter press (108) is provided with a secondary water outlet (109) and a sludge discharge pipe (137).

3. A coke quenching wastewater treatment device according to claim 2, characterized in that: Four flow-changing baffles (110) are arranged in the mixing reaction pool (102), and the flow-changing baffles (110) divide the mixing reaction pool (102) into four reaction pools. A flocculant medicine barrel (104), an acid medicine barrel (145), and an alkaline medicine barrel (146) are fixedly arranged on the bottom plate (101). The flocculant medicine barrel (104), the acid medicine barrel (145), and the alkaline medicine barrel (146) are all provided with water pumps and connected to the mixing reaction pool (102). A primary water outlet (106) is arranged at the upper end of the concentrated sedimentation circular pool (105), and a water inlet (103) is arranged at the upper end of the mixing reaction pool (102).

4. A method for using the coke quenching wastewater treatment device according to any one of claims 1 to 3, characterized in that: The following steps are involved: Step 1: driving the lifting screw (112) to rotate, causing the lifting slide (115) to slide, causing the stirring rod (123) and the inclined tube group (139) to be submerged in water, starting the driving electric cylinder (129), driving the active column gear (135) to rotate under the action of the active spur rack (131), thereby causing the driving slide plate 1 (116) and the driving slide plate 2 (117) to slide relative to each other, that is, under the action of the stirring gear ring (120), causing the stirring circular plate (122) to both rotate and revolve, thereby stirring the inside of the mixing reaction pool (102), driving the sedimentation gear ring (141) to rotate, causing the rack stirring strip plate (142) to stir the bottom of the concentrated sedimentation circular pool (105), and starting the sludge pump (107) and the filter press (108); Step 2: the quenching wastewater is added to the mixing reaction tank (102) through the water inlet (103), the flocculant is added to the mixing reaction tank (102) through the water pump on the flocculant medicine barrel (104), and the acid or alkali is added to the mixing reaction tank (102) through the water pump on the acid medicine barrel (145) or the water pump on the alkaline medicine barrel (146) to adjust the pH value. The quenching wastewater passes through the mixing reaction tank (102) which is divided into four pools by the flow diversion partition (110), and under the action of the four-stage stirring, the feed liquid and the reagent are fully mixed, and the rotation positions of the two adjacent stirring circular plates (122) are different, thereby further disrupting the water flow rotation direction inside the mixing reaction tank (102) and improving the reagent mixing effect; Step 3: the liquid mixed with the reagent enters the concentrated bottom circular tank (105), and is precipitated and clarified under the action of the rack stirring strip plate (142) and the inclined tube group (139), and the overflow water returns to the quenching water tank through the primary outlet (106), completing the closed-loop utilization of water; Step 4: After the inclined tube group (139) is concentrated, the sludge precipitated at the bottom is pumped into the filter press (108) by the sludge pump (107). After the filter press treatment, the filtrate is returned to the quenching water tank from the secondary outlet (109) for recycling, and the compressed sludge is discharged from the sludge discharge pipe (137).

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