Automatic treatment device for oil extraction sewage of oil well

Abstract

The invention relates to the technical field of sewage treatment, in particular to an oil well oil extraction sewage automatic treatment device which comprises a base, a first box, an air pump, an air pipe, an annular pipe, a cross pipe and the like. The top of the base is connected with the first box, the air pump is installed on the first box, the air pipe is connected to the air outlet end of the air pump, and the air pipe penetrates through the first box in a sealed mode; an annular pipe is connected to the air pipe, a cross pipe is connected into the annular pipe, and aeration holes are formed in the top of the annular pipe and the top of the cross pipe. The flowing direction of oil extraction sewage can be continuously changed through the spiral pipe, the movement direction of the oil extraction sewage can be continuously adjusted, and a part of the oil extraction sewage can be discharged through the discharge port, so that the flowing speed of the oil extraction sewage can be reduced, the oil extraction sewage in the first box body is prevented from generating excessive fluctuation, and more thorough oil-water separation is ensured; oil drops in the oil extraction sewage can float upwards, so that oil-water separation treatment is carried out.

Description

Technical Field

[0001] The present invention relates to the technical field of sewage treatment, and in particular to an automatic treatment device for oil well production sewage. Background Art

[0002] During the oilfield exploitation process, the discharge volume of oil production wastewater is huge, and its composition is complex, containing a large amount of crude oil, suspended matter, soil and other impurities. If it is directly discharged or reinjected into the formation, it will cause serious environmental pollution and waste of resources.

[0003] In the process of oil production wastewater treatment, the oil-water separation link is very critical. The main reason is that oil production wastewater contains a large amount of oil substances. If these oil substances are not effectively separated and treated, they will have an adverse impact on subsequent treatment steps, the environment, and the final water quality reuse or discharge.

[0004] During the oil-water separation process, the produced wastewater is generally discharged directly into the separation tank for oil-water separation. There is no relevant deceleration structure to reduce the flow velocity of the produced wastewater. The flow velocity of the produced wastewater is too fast and irregular, resulting in large fluctuations in the produced wastewater and poor oil droplet agglomeration effect. In addition, the wastewater fluctuation will cause uneven distribution of aeration bubbles, resulting in incomplete oil-water separation and low oil yield. Summary of the Invention

[0005] In view of this, the present invention provides an automated treatment device for oil well production wastewater, which can overcome the shortcomings of large fluctuations in production wastewater, poor oil droplet agglomeration effect, and uneven distribution of aeration bubbles caused by wastewater fluctuations, thereby resulting in incomplete oil-water separation and low oil yield.

[0006] Technical solution: An automated treatment device for oil well production wastewater, comprising a base, a first box body, an air pump, an air pipe, an annular pipe, a cross pipe, a spiral pipe, a mud suction pump, a mud discharge pipe, a first valve, a removal mechanism, an oil discharge mechanism and a sedimentation mechanism. The top of the base is connected to the first box body, an air pump is installed on the first box body, the air outlet end of the air pump is connected to the air pipe, the air pipe seal passes through the first box body, the air pipe is connected to the annular pipe, the annular pipe is connected to the cross pipe, aeration holes are opened on the top of the annular pipe and the top of the cross pipe, a spiral pipe is connected to the first box body, discharge ports are evenly spaced on the spiral pipe, a mud suction pump is installed at the bottom of the first box body, the discharge end of the mud suction pump is connected to the mud discharge pipe, a first valve is installed on the mud discharge pipe, the removal mechanism is used to remove suspended matter in the production wastewater, the production wastewater after the suspended matter is removed will flow into the first box body for oil-water separation, the oil discharge mechanism is used to discharge oil in the production wastewater, and the sedimentation mechanism is used to settle the mud in the production wastewater.

[0007] In addition, it is particularly preferred that the removal mechanism includes a second box body, a discharge hopper, a guide pipe, a support frame, a conical bucket, a transparent tank, a spiral conveying shaft, a first motor, a water inlet pipe and a discharge pipe, the top of the base is connected to the second box body, the second box body is connected to the first box body, the top of the spiral pipe is sealed and connected to the second box body, the bottom of the second box body is connected to the discharge hopper, the bottom of the discharge hopper is connected to the mud discharge pipe, and the discharge hopper and the mud discharge pipe are connected, the top of the second box body is connected to the guide pipe and the conical bucket, the conical bucket is located in the guide pipe, the second box body is connected to a support frame for supporting the guide pipe, the guide pipe and the support frame are connected, first drainage holes are evenly spaced on the conical bucket, the top of the conical bucket is connected to the transparent tank, the top of the transparent tank is rotatably connected to the spiral conveying shaft, the spiral conveying shaft is in contact with the inner wall of the conical bucket, second drainage holes are evenly spaced on the spiral conveying shaft, the top of the transparent tank is installed with a first motor, the output shaft of the first motor is connected to the spiral conveying shaft, and the transparent tank is connected with the water inlet pipe and the discharge pipe.

[0008] In addition, it is particularly preferred that the oil discharge mechanism includes a spiral plate, a guide plate, a hard pipe, an annular plate, a floating plate, an extraction head and a hose, the spiral plate is connected to the top of the first box body, the guide plate is connected to the bottom of the spiral plate, the top of the first box body is connected to the hard pipe, the annular plate is connected to the first box body, the bottom of the annular plate is connected to the top of the spiral plate, a floating plate is placed in the annular plate, the extraction head is connected to the floating plate, the top of the extraction head is connected to the hose, the hose is located in the hard pipe, and the hose passes through the hard pipe.

[0009] In addition, it is particularly preferred that the sedimentation mechanism includes a third box, a water pipe, a walnut shell filter, a feed pipe, a partition, a corrugated inclined plate, a drain pipe, a mud outlet pipe and a second valve. The top of the base is connected to the third box, the third box is connected to the first box, the third box is connected to the water pipe, the water pipe seal passes through the first box, the water pipe is connected to a walnut shell filter for filtering oil in oil production wastewater, the top of the third box is connected to the feed pipe, the third box is connected to a partition, the third box is connected to corrugated inclined plates evenly spaced inside the third box, the third box is connected to the drain pipe, the bottom of the third box is connected to the mud outlet pipe, and the second valve is installed on the mud outlet pipe.

[0010] In addition, it is particularly preferred that a pushing mechanism is also included, which includes a rotating shaft, rotating blades and a push plate. A rotating shaft is rotatably connected between the top of the cross tube and the bottom of the guide plate, the lower part of the rotating shaft is connected to the rotating blades, and the upper part of the rotating shaft is connected to a push plate for pushing the oil suspended on the oil production wastewater to the guide plate.

[0011] In addition, it is particularly preferred that a stirring mechanism is also included, the stirring mechanism includes a stirring shaft, a stirring blade, a second motor and a layering plate, the stirring shaft is rotatably connected to the top of the third box body, the stirring blade is connected to the stirring shaft, the second motor is installed on the top of the third box body, the output shaft of the second motor is connected to the stirring shaft, the layering plate is connected to the partition, the layering plate is connected to the inner wall of the third box body, a through hole is opened on the layering plate, and the stirring shaft is located in the through hole.

[0012] In addition, it is particularly preferred that an observation mechanism is further included, the observation mechanism includes an observation tube and an observation window, the annular plate is connected to the observation tube, the observation tube seals and passes through the first box body, and the observation tube is connected to the observation window.

[0013] In addition, it is particularly preferred that a transparent plate is further included, and the third box body is connected to the transparent plate.

[0014] Compared with the prior art, the present invention has the following advantages: 1. The present invention can continuously change the flow direction of the produced wastewater through the spiral tube, so that the produced wastewater can continuously adjust its movement direction, and a part of the produced wastewater will be discharged through the discharge port, thereby reducing the flow speed of the produced wastewater, avoiding excessive fluctuations of the produced wastewater in the first box, ensuring more thorough oil-water separation, and improving the oil yield. The oil droplets in the produced wastewater will float upward for oil-water separation.

[0015] 2. Air can be sucked into the annular tube and the cross tube through the air pump, and the air is ejected through the aeration holes to produce tiny bubbles. The tiny bubbles will form a large number of bubble groups in the oil-produced wastewater. These bubbles will collide with the oil droplets in the oil-produced wastewater during the rising process. The collision between the bubbles and the oil droplets will increase the contact opportunities between the oil droplets, help the oil droplets to gather together and form larger oil droplets, promote the coalescence of oil droplets, and accelerate the floating speed of oil droplets.

[0016] 3. The rotating blades can drive the push plate to rotate, and the push plate can push the oil suspended on the oil-produced wastewater onto the guide plate, thereby improving the oil-water separation efficiency.

[0017] 4. The output shaft of the second motor can drive the stirring blade to rotate, and the stirring blade can stir the oil-produced wastewater and the demulsifier, so that the oil-produced wastewater and the demulsifier can fully contact each other, so that the demulsifier can more effectively destroy the stability of the emulsified oil. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention.

[0019] Figure 2 This is a first cross-sectional view of the first box body of the present invention.

[0020] Figure 3It is a schematic diagram of the three-dimensional structure of the annular tube, cross tube and aeration hole of the present invention.

[0021] Figure 4 This is a second cross-sectional view of the first box body of the present invention.

[0022] Figure 5 It is a schematic diagram of the three-dimensional structure of the spiral tube and the discharge port of the present invention.

[0023] Figure 6 It is a cross-sectional view of the first box body and the second box body of the present invention.

[0024] Figure 7 It is a cross-sectional view of the second box body of the present invention.

[0025] Figure 8 It is a cross-sectional view of the transparent can of the present invention.

[0026] Figure 9 It is a cross-sectional view of the first box and the hard tube of the present invention.

[0027] Figure 10 2 is a cross-sectional view of the annular plate of the present invention.

[0028] Figure 11 It is a cross-sectional view of the first box body and the third box body of the present invention.

[0029] Figure 12 It is a schematic diagram of the three-dimensional structure of the pushing mechanism of the present invention.

[0030] Figure 13 It is a schematic diagram of the three-dimensional structure of the stirring mechanism of the present invention.

[0031] Figure 14 It is a schematic diagram of the three-dimensional structure of the stirring shaft and stirring blades of the present invention.

[0032] Figure 15 It is a schematic diagram of the three-dimensional structure of the layered plate and the through hole of the present invention.

[0033] Figure 16 It is a schematic diagram of the three-dimensional structure of the observation mechanism of the present invention.

[0034] In the figure: 1, base, 2, first box, 3, air pump, 4, air pipe, 5, annular pipe, 6, cross pipe, 7, aeration hole, 8, spiral pipe, 9, discharge port, 10, dredge pump, 11, dredge pipe, 12, first valve, 131, second box, 132, discharge hopper, 133, guide pipe, 134, support frame, 135, conical bucket, 136, first drainage hole, 137, transparent tank, 138, spiral conveyor shaft, 139, second drainage hole, 1310, first motor, 1311, water inlet pipe, 1312, discharge pipe, 141, spiral plate, 142, guide plate, 143. Hard tube, 144. Ring plate, 145. Floating plate, 146. Extraction head, 147. Hose, 151. Third box, 152. Water guide pipe, 153. Walnut shell filter, 154. Feed pipe, 155. Partition, 156. Corrugated inclined plate, 157. Drain pipe, 158. Mud discharge pipe, 159. Second valve, 161. Rotating shaft, 162. Rotating blade, 163. Push plate, 171. Stirring shaft, 172. Stirring blade, 173. Second motor, 174. Layered plate, 175. Through hole, 181. Observation tube, 182. Observation window, 19. Transparent plate. DETAILED DESCRIPTION

[0035] refer to Figures 1-11 , an oil well production wastewater automatic treatment device, including a base 1, a first box body 2, an air pump 3, an air pipe 4, an annular pipe 5, a cross pipe 6, a spiral pipe 8, a mud suction pump 10, a mud discharge pipe 11, a first valve 12, a removal mechanism, an oil discharge mechanism and a sedimentation mechanism. The top middle of the base 1 is connected to the first box body 2 by bolts, and the air pump 3 is installed on the lower front side of the first box body 2 by bolts. The air outlet end of the air pump 3 is connected to the air pipe 4, and the air pipe 4 is sealed and passes through the lower front side of the first box body 2. The rear end of the air pipe 4 is connected to the annular pipe 5, and the cross pipe 6 is connected inside the annular pipe 5. The top of the annular pipe 5 is connected to the cross pipe 6. Aeration holes 7 are evenly spaced at the top and the cross tube 6. A spiral tube 8 is connected to the first box body 2, and discharge ports 9 are evenly spaced on the spiral tube 8. A sludge pump 10 is installed in the middle of the bottom of the first box body 2 by bolts, and a sludge discharge pipe 11 is connected to the discharge end of the sludge pump 10. A first valve 12 is installed on the left part of the sludge discharge pipe 11. The removal mechanism is used to remove suspended matter in the produced oil water. The produced oil water after the suspended matter is removed will flow into the first box body 2 for oil-water separation. The oil discharge mechanism is used to discharge the oil in the produced oil water, and the sedimentation mechanism is used to precipitate the mud in the produced oil water.

[0036] refer to Figure 1 、 Figure 6 、 Figure 7 and Figure 8, the removal mechanism includes a second box body 131, a discharge hopper 132, a guide pipe 133, a support frame 134, a conical bucket 135, a transparent tank 137, a spiral conveying shaft 138, a first motor 1310, a water inlet pipe 1311 and a discharge pipe 1312. The left side of the top of the base 1 is connected to the second box body 131 by bolts, the right side of the second box body 131 and the left side of the first box body 2 are connected by bolts, the top of the spiral tube 8 is sealed and connected to the second box body 131, the bottom of the second box body 131 is connected to the discharge hopper 132, the bottom of the discharge hopper 132 is connected to the mud discharge pipe 11, and the discharge hopper 132 is connected to the mud discharge pipe 11, the top of the second box body 131 is connected to the guide pipe 133 and the conical bucket 135, the conical bucket 135 is located in the guide pipe 133, and the lower part of the second box body 131 is connected by bolts There is a support frame 134, and the guide pipe 133 is connected to the support frame 134. The support frame 134 can support the guide pipe 133 to improve the stability of the guide pipe 133. First drainage holes 136 are evenly spaced on the conical bucket 135. A transparent tank 137 is connected to the top of the conical bucket 135. A spiral conveying shaft 138 is rotatably connected to the top of the transparent tank 137. The spiral conveying shaft 138 contacts the inner wall of the conical bucket 135. Second drainage holes 139 are evenly spaced on the spiral conveying shaft 138. A first motor 1310 is installed on the top of the transparent tank 137 by bolts. The output shaft of the first motor 1310 and the upper end of the spiral conveying shaft 138 are connected by a coupling. The lower left part of the transparent tank 137 is connected to a water inlet pipe 1311, and the upper left part of the transparent tank 137 is connected to a discharge pipe 1312.

[0037] refer to Figure 1 、 Figure 9 and Figure 10 The oil discharge mechanism includes a spiral plate 141, a guide plate 142, a hard pipe 143, an annular plate 144, a floating plate 145, an extraction head 146 and a hose 147. The top of the first box body 2 is connected to the spiral plate 141, the bottom of the spiral plate 141 is connected to the guide plate 142, the middle of the top of the first box body 2 is connected to the hard pipe 143, the upper part of the first box body 2 is connected to the annular plate 144, the bottom of the annular plate 144 is connected to the top of the spiral plate 141, a floating plate 145 is placed in the annular plate 144, the middle part of the floating plate 145 is connected to the extraction head 146, the top of the extraction head 146 is connected to the hose 147, the hose 147 is located in the hard pipe 143, and the hose 147 passes through the right end of the hard pipe 143.

[0038] refer to Figure 1 and Figure 11The sedimentation mechanism includes a third box 151, a water pipe 152, a walnut shell filter 153, a feed pipe 154, a partition 155, a corrugated inclined plate 156, a drain pipe 157, a mud discharge pipe 158 and a second valve 159. The right side of the top of the base 1 is connected to the third box 151 by bolts, the left side of the third box 151 and the right side of the first box 2 are connected by bolts, and the upper left side of the third box 151 is connected to the water pipe 152, which is sealed and passes through the third box 151. On the right side of the first box body 2, the left end of the water pipe 152 is connected to a walnut shell filter 153, the left front side of the top of the third box body 151 is connected to a feed pipe 154, the left part of the inner side of the third box body 151 is connected to a partition 155, the right part of the inner side of the third box body 151 is evenly spaced and connected to corrugated inclined plates 156, the upper right part of the third box body 151 is connected to a drain pipe 157, the right side of the bottom of the third box body 151 is connected to a mud discharge pipe 158, and a second valve 159 is installed on the mud discharge pipe 158.

[0039] The staff connects the water inlet pipe 1311 to the sewage pipe, and the oil-produced sewage flows into the transparent tank 137 through the water inlet pipe 1311, and the oil-produced sewage falls into the conical bucket 135 through the second drainage hole 139, and then the oil-produced sewage falls into the guide pipe 133 through the first drainage hole 136, and then the oil-produced sewage falls into the second box body 131 through the guide pipe 133. The suspended matter in the oil-produced sewage will remain on the spiral conveying shaft 138. The staff starts the first motor 1310, and the output shaft of the first motor 1310 drives the spiral conveying shaft 138 to rotate. The spiral conveying shaft 138 conveys the suspended matter upward, and the suspended matter is discharged through the discharge pipe 1312 to remove the suspended matter in the oil-produced sewage. As time goes by, the oil-produced sewage in the second box body 131 becomes more and more. , the produced water in the second box 131 will flow into the spiral tube 8 and flow into the first box 2 along the spiral tube 8. The spiral tube 8 constantly changes the flow direction of the produced water, and the produced water constantly adjusts its movement direction. Part of the produced water will be discharged through the discharge port 9, thereby reducing the flow speed of the produced water and avoiding excessive fluctuations in the produced water in the first box 2, ensuring more thorough oil-water separation and improving the oil yield. The oil droplets in the produced water will float upward for oil-water separation. Subsequently, the oil floating on the produced water will flow to the guide plate 142 and flow along the spiral plate 141 into the annular plate 144 and contact the floating plate 145. The floating plate 145 floats upward. When the annular plate 144 is filled with oil, the hose 147 is connected The oil pump extracts the oil in the annular plate 144 through the hose 147 and the extraction head 146, and discharges the oil in the annular plate 144. The floating plate 145 moves downward under the action of its own gravity. The staff can start the air pump 3, and the air pump 3 sucks air into the air pipe 4. The air flows into the annular pipe 5 and the cross pipe 6 through the air pipe 4, and finally the air is ejected through the aeration hole 7 to generate tiny bubbles. The tiny bubbles will form a large number of bubble groups in the oil-produced wastewater. These bubbles will collide with the oil droplets in the oil-produced wastewater during the rising process. The collision between the bubbles and the oil droplets will increase the contact opportunities between the oil droplets, help the oil droplets to gather with each other and form larger oil droplets, promote the coalescence of oil droplets, and speed up the floating speed of oil droplets. The mud in the oil-produced wastewater in the first box body 2 The soil will settle downwards, and the mud in the produced wastewater in the second box 131 will also settle downwards and sink into the discharge hopper 132, and flow into the mud discharge pipe 11 through the discharge hopper 132. The first valve 12 can be opened to discharge the mud in the mud discharge pipe 11. The mud suction pump 10 can suck the mud in the first box 2 into the mud discharge pipe 11 and discharge it through the mud discharge pipe 11. The produced wastewater in the first box 2 will flow into the third box 151 through the water guide pipe 152. The walnut shell filter 153 can filter the oil in the produced wastewater to prevent oil droplets from flowing into the third box 151. The produced wastewater contains emulsified oil. Emulsified oil refers to oil stably dispersed in water in the form of tiny droplets to form an emulsion that is difficult to separate naturally. This emulsion is very stable.It will prevent the oil droplets from merging and floating. The staff can pour the demulsifier into the third box 151 through the feed pipe 154. The demulsifier can destroy the stability of the emulsified oil and promote oil-water separation. The demulsification process will produce flocs. During the sedimentation process in the third box 151, the flocs will contact the corrugated inclined plate 156. The corrugated structure of the corrugated inclined plate 156 can guide the water flow along the crests and troughs, forming a more uniform flow velocity distribution, reducing short-circuit flow, and improving the overall sedimentation effect, so that the flocs can sink better to the bottom of the third box 151. Open the second valve 159, and the flocs in the third box 151 will be discharged through the mud discharge pipe 158. The treated oil production wastewater will be discharged through the drain pipe 157.

[0040] refer to Figure 12 , also includes a pushing mechanism, which includes a rotating shaft 161, rotating blades 162 and a push plate 163. The rotating shaft 161 is rotatably connected between the top of the cross tube 6 and the bottom of the guide plate 142. Three rotating blades 162 are evenly spaced circumferentially connected to the lower part of the rotating shaft 161, and three push plates 163 are evenly spaced circumferentially connected to the upper part of the rotating shaft 161.

[0041] The produced oily wastewater flows along the spiral tube 8 into the first box body 2, and the produced oily wastewater pushes the rotating blades 162, causing the rotating blades 162 to rotate, and the rotating blades 162 drive the rotating shaft 161 to rotate, and the rotating shaft 161 drives the push plate 163 to rotate. The push plate 163 can push the oil suspended on the produced oily wastewater to the guide plate 142, thereby improving the oil-water separation efficiency. The flow speed of the produced oily wastewater is slow, so the rotation speed of the push plate 163 will also be relatively slow, thereby avoiding excessive fluctuations in the produced oily wastewater.

[0042] refer to Figure 13-15 , also includes a stirring mechanism, the stirring mechanism includes a stirring shaft 171, a stirring blade 172, a second motor 173 and a layered plate 174, the stirring shaft 171 is rotatably connected to the left side of the top of the third box body 151, and three stirring blades 172 are evenly spaced and connected to the stirring shaft 171, and the second motor 173 is installed on the left side of the top of the third box body 151 by bolts, and the output shaft of the second motor 173 and the upper end of the stirring shaft 171 are connected by a coupling, and three layered plates 174 are evenly spaced and connected to the left side of the partition 155, and the layered plates 174 are connected to the inner wall of the third box body 151, and through holes 175 are opened in the middle of the layered plates 174, and the stirring shaft 171 is located in the through holes 175.

[0043] The staff can start the second motor 173, the output shaft of the second motor 173 drives the stirring shaft 171 to rotate, and the stirring shaft 171 drives the stirring blade 172 to rotate. The stirring blade 172 can stir the oil-produced wastewater and the demulsifier, so that the oil-produced wastewater and the demulsifier can fully contact each other, so that the demulsifier can more effectively destroy the stability of the emulsified oil. The layering plate 174 can separate the oil-produced wastewater, extend the contact time between the oil-produced wastewater and the demulsifier, and ensure that the demulsifier has sufficient time to destroy the stability of the emulsified oil.

[0044] refer to Figure 16 , also includes an observation mechanism, the observation mechanism includes an observation tube 181 and an observation window 182, the front side of the annular plate 144 is connected to the observation tube 181, the observation tube 181 is sealed and passes through the first box body 2, and the front end of the observation tube 181 is connected to the observation window 182. The oil content in the annular plate 144 can be seen through the observation window 182 and the observation tube 181, so that the oil in the annular plate 144 can be discharged in time.

[0045] refer to Figure 1 , also includes a transparent plate 19, the front and rear sides of the third box 151 are connected with a transparent plate 19, through the transparent plate 19 can be observed the sedimentation of the soil in the third box 151, so that the soil can be discharged in time.

Claims

1. An automatic treatment device for oil well wastewater, comprising a base (1), a first box (2), an air pump (3), an air pipe (4), an annular pipe (5) and a cross pipe (6), wherein the top of the base (1) is connected to the first box (2), the air pump (3) is installed on the first box (2), the air outlet of the air pump (3) is connected to the air pipe (4), the air pipe (4) is sealed and passes through the first box (2), the air pipe (4) is connected to the annular pipe (5), the inside of the annular pipe (5) is connected to the cross pipe (6), the top of the annular pipe (5) and the top of the cross pipe (6) are both provided with aeration holes (7), and the device is characterized in that: The invention also includes a spiral tube (8), a mud suction pump (10), a mud discharge pipe (11), a first valve (12), a removal mechanism, an oil discharge mechanism and a sedimentation mechanism. The spiral tube (8) is connected to the first box (2), and the spiral tube (8) is evenly spaced with discharge ports (9). The bottom of the first box (2) is equipped with a mud suction pump (10), and the discharge end of the mud suction pump (10) is connected to the mud discharge pipe (11). The mud discharge pipe (11) is equipped with a first valve (12). The removal mechanism is used to remove suspended matter in the oil-producing wastewater. After the suspended matter is removed, the oil-producing wastewater flows into the first box (2) for oil-water separation. The oil discharge mechanism is used to discharge oil from the oil-producing wastewater. The sedimentation mechanism is used to precipitate mud in the oil-producing wastewater.

2. The automatic treatment device for oil well wastewater according to claim 1, characterized in that: The removal mechanism includes a second box (131), a discharge hopper (132), a guide pipe (133), a support frame (134), a conical bucket (135), a transparent tank (137), a spiral conveying shaft (138), a first motor (1310), a water inlet pipe (1311) and a discharge pipe (1312). The top of the base (1) is connected to the second box (131), the second box (131) is connected to the first box (2), the top of the spiral pipe (8) is sealed and connected to the second box (131), the bottom of the second box (131) is connected to the discharge hopper (132), the bottom of the discharge hopper (132) is connected to the mud discharge pipe (11), and the discharge hopper (132) and the mud discharge pipe (11) are connected. The top of the second box (131) is connected to the guide pipe (133) and the conical bucket (135), and the conical bucket (135) is located in the guide pipe. (133), a support frame (134) for supporting the material guide pipe (133) is connected to the second box (131), the material guide pipe (133) and the support frame (134) are connected, the conical bucket (135) is evenly spaced with first drainage holes (136), the top of the conical bucket (135) is connected to a transparent tank (137), the top of the transparent tank (137) is rotatably connected to a spiral conveying shaft (138), the spiral conveying shaft (138) is in contact with the inner wall of the conical bucket (135), and second drainage holes (139) are evenly spaced on the spiral conveying shaft (138). A first motor (1310) is installed on the top of the transparent tank (137), the output shaft of the first motor (1310) is connected to the spiral conveying shaft (138), and the transparent tank (137) is connected to a water inlet pipe (1311) and a material discharge pipe (1312).

3. The automatic treatment device for oil well wastewater according to claim 2, characterized in that: The oil discharge mechanism includes a spiral plate (141), a guide plate (142), a hard pipe (143), an annular plate (144), a floating plate (145), an extraction head (146) and a hose (147). The top of the first box (2) is connected to the spiral plate (141), the bottom of the spiral plate (141) is connected to the guide plate (142), the top of the first box (2) is connected to the hard pipe (143), the first box (2) is connected to the annular plate (144), the bottom of the annular plate (144) is connected to the top of the spiral plate (141), a floating plate (145) is placed in the annular plate (144), the extraction head (146) is connected to the floating plate (145), the top of the extraction head (146) is connected to the hose (147), the hose (147) is located in the hard pipe (143), and the hose (147) passes through the hard pipe (143).

4. The automatic treatment device for oil well wastewater according to claim 3, characterized in that: The sedimentation mechanism includes a third box (151), a water pipe (152), a walnut shell filter (153), a feed pipe (154), a partition (155), a corrugated inclined plate (156), a drainage pipe (157), a mud discharge pipe (158) and a second valve (159). The top of the base (1) is connected to the third box (151), the third box (151) is connected to the first box (2), and the third box (151) is connected to the water pipe (152). The water pipe (152) is sealed and passes through the first box (2). The water conduit (152) is connected to a walnut shell filter (153) for filtering oil in oil production wastewater, the top of the third box (151) is connected to a feed pipe (154), the inside of the third box (151) is connected to a partition (155), the inside of the third box (151) is connected to corrugated inclined plates (156) at even intervals, the third box (151) is connected to a drain pipe (157), the bottom of the third box (151) is connected to a mud outlet pipe (158), and the mud outlet pipe (158) is installed with a second valve (159).

5. The automatic treatment device for oil well wastewater according to claim 3, characterized in that: The invention also includes a pushing mechanism, which includes a rotating shaft (161), a rotating blade (162) and a push plate (163). The rotating shaft (161) is rotatably connected between the top of the cross tube (6) and the bottom of the guide plate (142). The lower part of the rotating shaft (161) is connected to the rotating blade (162). The upper part of the rotating shaft (161) is connected to the push plate (163) for pushing oil suspended on the oil-producing wastewater onto the guide plate (142).

6. The automatic treatment device for oil well wastewater according to claim 4, characterized in that: The invention also includes a stirring mechanism, which includes a stirring shaft (171), a stirring blade (172), a second motor (173) and a layered plate (174). The top of the third box (151) is rotatably connected to the stirring shaft (171), and the stirring blade (172) is connected to the stirring shaft (171). The second motor (173) is installed on the top of the third box (151), and the output shaft of the second motor (173) is connected to the stirring shaft (171). The partition (155) is connected to the layered plate (174), and the layered plate (174) is connected to the inner wall of the third box (151). A through hole (175) is opened on the layered plate (174), and the stirring shaft (171) is located in the through hole (175).

7. The automatic treatment device for oil well wastewater according to claim 3, characterized in that: The device further comprises an observation mechanism, which comprises an observation tube (181) and an observation window (182). The annular plate (144) is connected to the observation tube (181), the observation tube (181) is sealed and passes through the first box body (2), and the observation tube (181) is connected to the observation window (182).

8. The automatic treatment device for oil well wastewater according to claim 4, characterized in that: It also includes a transparent plate (19), and the transparent plate (19) is connected to the third box body (151).

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