Precipitation device for oil and gas field sewage treatment

Abstract

The utility model discloses a precipitation device for sewage treatment of an oil and gas field, which is applied to the field of sewage treatment and is characterized in that a first motor rotates to enable a reciprocating screw rod to drive a guide block to reciprocate, and the guide block reciprocates to drive a sliding block and a fixed rod to reciprocate; a fixed rod reciprocates to drive a scraping plate to reciprocate to clean the inner wall of the settling tank, so that the purpose of conveniently cleaning the inner wall of the settling tank can be achieved, the workload is reduced, the cleaning efficiency is improved, and the device is convenient to use; medicament in the medicament box enters the fixing barrel from the connecting pipe through the first one-way valve, the air cylinder drives the piston to move downwards to enable the medicament to enter the settling box through the second one-way valve, and the number of times of downward pressing of the air cylinder can be controlled through the controller, so that the adding amount is controlled, the purpose of quantitative medicament adding is achieved, the workload is reduced, and the working efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the field of sewage treatment, in particular to a precipitation device for oil and gas field sewage treatment. Background Technique

[0002] At present, the Chinese utility model with the publication number CN214611873U discloses a precipitation device for sewage treatment, including a precipitation tank and a transmission shaft. A stirring tank is arranged on the top wall of the precipitation tank, a transmission case is arranged on the top of the stirring tank, a connecting pipe is arranged at the bottom of the stirring tank, a first limiting plate, a second limiting plate and a third limiting plate are arranged on one side wall of the precipitation tank from top to bottom in sequence, a drain pipe is arranged on one side wall of the precipitation tank close to the third limiting plate, a second valve is arranged on the drain pipe, a sewage discharge pipe is arranged on the bottom wall of the precipitation tank, and a third valve is arranged on the sewage discharge pipe. This precipitation device for sewage treatment can better precipitate sewage by using detachable first, second and third filter meshes, and can also accelerate the precipitation speed, avoiding waste of time. By using the transmission case, stirring rods and stirring blades, the sewage can be medicament stirred, which is more conducive to the rapid precipitation of sewage.

[0003] The existing precipitation device does not have a cleaning function. Generally, after the precipitation tank is used, a large amount of stains will adhere to the inner wall of the precipitation tank and need to be cleaned regularly. Generally, when cleaning the precipitation tank, the precipitation tank needs to be opened and then washed with a water gun. The cleaning process is rather troublesome, increasing the workload and reducing the cleaning efficiency. Moreover, the space of the precipitation tank is small, increasing the cleaning difficulty. It also does not have a function of quantitative chemical addition. When precipitating wastewater, a flocculant needs to be added to the wastewater to make the tiny suspended particles in the water aggregate to form larger flocs, so as to improve the precipitation speed and treatment efficiency. When adding the flocculant, the staff use measuring tools such as graduated cylinders to measure the amount of the flocculant, and then add it to the wastewater after measurement. The whole process is rather cumbersome, increasing the workload and reducing the work efficiency. In order to solve the above problems, we propose a precipitation device for oil and gas field sewage treatment. Content of the Utility Model

[0004] The purpose of the utility model is to provide a precipitation device for oil and gas field sewage treatment, and its advantage is that it has a cleaning function and a function of quantitative chemical addition.

[0005] The above technical object of the utility model is achieved by the following technical solutions: A sedimentation device for oil and gas field sewage treatment, including a sedimentation tank. Support legs are bolted to the bottom of the sedimentation tank. A water inlet pipe is communicated with the sedimentation tank. A first motor is bolted to the surface of the sedimentation tank. The output end of the first motor is connected with a reciprocating lead screw through a coupling. The reciprocating lead screw is rotatably installed in the sedimentation tank through a bearing. A sliding block is slidably sleeved on the surface of the reciprocating lead screw. A guiding block is rotatably installed on the inner wall of the sliding block. The guiding block is slidably connected with a thread groove on the reciprocating lead screw. A fixing rod extending towards both sides of the sedimentation tank is bolted to the surface of the sliding block. A scraping plate is bolted to the extending end of the fixing rod. The scraping plate is slidably matched with the inner wall of the sedimentation tank. A controller is bolted to the surface of the sedimentation tank. A slag discharging mechanism is arranged at the bottom of the sedimentation tank. A stirring mechanism is arranged inside the sedimentation tank. A medicine tank is bolted to the top of the sedimentation tank. A connecting pipe is communicated with the medicine tank. The other end of the connecting pipe is communicated with a first one-way valve. The other end of the first one-way valve is communicated with a fixing cylinder. A second one-way valve is arranged at the bottom of the fixing cylinder. The outlet end of the second one-way valve extends into the sedimentation tank. A piston is slidably sleeved on the inner wall of the fixing cylinder. A cylinder is installed on the top of the fixing cylinder. The output end of the cylinder penetrates through the fixing cylinder and is fixed to the piston.

[0006] By adopting the above technical solutions, the first motor rotates to drive the reciprocating lead screw to rotate. The reciprocating lead screw rotates to drive the guiding block to reciprocate. The guiding block reciprocates to drive the sliding block to reciprocate. The sliding block reciprocates to drive the fixing rod to reciprocate. The fixing rod reciprocates to drive the scraping plate to reciprocate. The scraping plate cleans the inner wall of the sedimentation tank, which can achieve the purpose of facilitating the cleaning of the inner wall of the sedimentation tank, reducing the workload, improving the cleaning efficiency, and being convenient to use. The cylinder drives the piston to move upward, reducing the pressure inside the fixing cylinder. The medicine in the medicine tank enters the fixing cylinder through the connecting pipe and the first one-way valve. The cylinder drives the piston to move downward to inject the medicine into the sedimentation tank through the second one-way valve. The controller can control the number of times the cylinder presses down, thereby controlling the added amount, so as to achieve the purpose of quantitative medicine addition, reducing the workload and improving the working efficiency.

[0007] The utility model is further arranged as follows: The slag discharging mechanism includes a discharge pipe. The discharge pipe is communicated with the bottom of the sedimentation tank. A second motor is bolted to the surface of the discharge pipe. The output end of the second motor is connected with a auger through a coupling. The auger is rotatably installed in the sedimentation tank.

[0008] By adopting the above technical solutions, the slag discharging mechanism is arranged to facilitate slag discharging.

[0009] The present utility model is further configured as follows: The stirring mechanism includes two stirring rods rotatably installed in the sedimentation tank. One end of each of the two stirring rods extends outside the sedimentation tank and is fixedly sleeved with a pulley, and the two pulleys are connected by a belt. A fixed shell for covering the two pulleys is bolted to the surface of the sedimentation tank. A third motor is bolted to the surface of the fixed shell, and the output end of the third motor is connected to one of the top stirring rods through a coupling.

[0010] By adopting the above technical solution, through the setting of the stirring mechanism, the mixing speed of the flocculant and the wastewater is accelerated, thereby improving the flocculation efficiency and thus the sedimentation speed.

[0011] The present utility model is further configured as follows: A drain valve is connected to the sedimentation tank.

[0012] By adopting the above technical solution, through the setting of the drain valve, it is convenient to drain water.

[0013] The present utility model is further configured as follows: An observation window is provided on the medicine tank, and scale lines corresponding to the observation window are printed on the surface of the medicine tank.

[0014] By adopting the above technical solution, through the setting of the scale lines, it is convenient to check the remaining amount in the medicine tank.

[0015] The present utility model is further configured as follows: The material of the scraper is rubber.

[0016] By adopting the above technical solution, by setting the material of the scraper to rubber, it is convenient to clean.

[0017] The present utility model is further configured as follows: A backing plate is bolted to the bottom of the support leg.

[0018] By adopting the above technical solution, through the setting of the backing plate, the stability of the device is improved.

[0019] In summary, the present utility model has the following beneficial effects:

[0020] 1. In the present utility model, the first motor rotates to drive the reciprocating lead screw to rotate, the reciprocating lead screw rotates to drive the guide block to reciprocate, the guide block reciprocates to drive the sliding block to reciprocate, the sliding block reciprocates to drive the fixed rod to reciprocate, and the fixed rod reciprocates to drive the scraper to reciprocate. The scraper cleans the inner wall of the sedimentation tank, which can achieve the purpose of facilitating the cleaning of the inner wall of the sedimentation tank, reducing the workload, improving the cleaning efficiency, and being convenient for use.

[0021] 2. The utility model drives the piston to move upward through the air cylinder, reducing the pressure inside the fixed cylinder. The medicine in the medicine tank enters the fixed cylinder through the connecting pipe and the first one-way valve. The air cylinder drives the piston to move downward, and the medicine enters the sedimentation tank through the second one-way valve. The controller can control the number of times the air cylinder presses downward, thereby controlling the added amount, achieving the purpose of quantitative medicine addition, reducing the workload, and improving the work efficiency. Brief Description of the Drawings

[0022] Figure 1 is a three-dimensional view of the structure of the utility model;

[0023] Figure 2 is a sectional view of the structure of the utility model;

[0024] Figure 3 is a side sectional view of the structure of the utility model;

[0025] Figure 4 is the utility model Figure 2 magnified view of the structure at A in;

[0026] Reference numerals: 1, sedimentation tank; 2, support leg; 3, water inlet pipe; 4, first motor; 5, reciprocating lead screw; 6, sliding block; 7, guide block; 8, fixed rod; 9, scraper; 10, controller; 11, slag discharge mechanism; 12, stirring mechanism; 13, medicine tank; 14, connecting pipe; 15, first one-way valve; 16, fixed cylinder; 17, second one-way valve; 18, piston; 19, air cylinder; 20, discharge pipe; 21, second motor; 22, auger; 23, stirring rod; 24, belt pulley; 25, fixed shell; 26, third motor; 27, drain valve; 28, scale line; 29, backing plate. Detailed Embodiment

[0027] The following further elaborates on the utility model in conjunction with the attached drawings.

[0028] Embodiment 1:

[0029] Refer to Figure 1 , Figure 2 , Figure 3 and Figure 4, A sedimentation device for oil and gas field sewage treatment, including a sedimentation tank 1, support legs 2 are bolted to the bottom of the sedimentation tank 1, a water inlet pipe 3 is communicated with the surface of the sedimentation tank 1, a first motor 4 is bolted to the surface of the sedimentation tank 1, the output end of the first motor 4 is connected with a reciprocating screw rod 5 through a coupling, the reciprocating screw rod 5 is rotatably installed in the sedimentation tank 1 through a bearing, and a sliding block 6 is slidably sleeved on the surface of the reciprocating screw rod 5. A guide block 7 is rotatably installed on the inner wall of the sliding block 6, the guide block 7 is slidably connected with the thread groove on the reciprocating screw rod 5, a fixing rod 8 extending to both sides of the sedimentation tank 1 is bolted to the surface of the sliding block 6, a scraping plate 9 is bolted to the extending end of the fixing rod 8, and the scraping plate 9 is slidably matched with the inner wall of the sedimentation tank 1; A controller 10 is bolted to the surface of the sedimentation tank 1, a slag discharge mechanism 11 is arranged at the bottom of the sedimentation tank 1, and a stirring mechanism 12 is arranged inside the sedimentation tank 1. By driving the reciprocating screw rod 5 to rotate through the rotation of the first motor 4, the reciprocating screw rod 5 drives the guide block 7 to move reciprocally, the guide block 7 moves reciprocally to drive the sliding block 6 to move reciprocally, the sliding block 6 moves reciprocally to drive the fixing rod 8 to move reciprocally, and the fixing rod 8 moves reciprocally to drive the scraping plate 9 to move reciprocally. The way that the scraping plate 9 cleans the inner wall of the sedimentation tank 1 during the reciprocating movement can achieve the purpose of facilitating the cleaning of the inner wall of the sedimentation tank 1, reducing the workload, improving the cleaning efficiency, and being convenient for use.

[0030] Reference Figure 2 , The slag discharge mechanism 11 includes a discharge pipe 20, the discharge pipe 20 is communicated with the bottom of the sedimentation tank 1, a second motor 21 is bolted to the surface of the discharge pipe 20, and the output end of the second motor 21 is connected with a auger 22 through a coupling, and the auger 22 is rotatably installed in the sedimentation tank. By setting the slag discharge mechanism, it is convenient to discharge slag.

[0031] Reference Figure 2 , The stirring mechanism 12 includes two stirring rods 23 rotatably installed in the sedimentation tank 1. One end of the two stirring rods 23 extends outside the sedimentation tank 1 and is fixedly sleeved with a pulley 24, and the two pulleys 24 are connected by a belt. A fixed shell 25 for covering the two pulleys 24 is bolted to the surface of the sedimentation tank 1, and a third motor 26 is bolted to the surface of the fixed shell 25, and the output end of the third motor 26 is connected with one of the stirring rods 23 through a coupling. By setting the stirring mechanism 12, the mixing speed of the flocculant and the wastewater is accelerated, thereby improving the flocculation efficiency and thus the sedimentation speed.

[0032] Reference Figure 1 and Figure 2 , A drain valve 27 is communicated with the sedimentation tank 1. By setting the drain valve 27, it is convenient to drain water.

[0033] Reference Figure 3 , The material of the scraping plate 9 is rubber. By setting the material of the scraping plate 9 to be rubber, it is convenient to clean.

[0034] Example 2:

[0035] Reference Figure 1 and Figure 2 On the top of the sedimentation tank 1, a chemical agent tank 13 is bolted. A connecting pipe 14 is connected to the chemical agent tank 13. The other end of the connecting pipe 14 is connected to a first one-way valve 15. The other end of the first one-way valve 15 is connected to a fixed cylinder 16, and the fixed cylinder 16 is installed on the top of the sedimentation tank 1. A second one-way valve 17 is provided at the bottom of the fixed cylinder 16. The outlet end of the second one-way valve 17 extends into the sedimentation tank 1. A piston 18 is slidably sleeved on the inner wall of the fixed cylinder 16. A cylinder 19 is installed on the top of the fixed cylinder 16, and the output end of the cylinder 19 penetrates the fixed cylinder 16 and is fixed to the piston 18. By driving the piston 18 to move upward by the cylinder 19, the pressure inside the fixed cylinder 16 is reduced, and the chemical agent in the chemical agent tank 13 enters the fixed cylinder 16 through the connecting pipe 14 and the first one-way valve 15. The cylinder 19 drives the piston 18 to move downward to inject the chemical agent into the sedimentation tank 1 through the second one-way valve 17. The controller 10 can control the number of times the cylinder 19 presses downward, so as to control the added amount, so as to achieve the purpose of quantitative chemical agent addition, reduce the workload and improve the work efficiency.

[0036] Reference Figure 1 and Figure 2 There is an observation window on the chemical agent tank 13, and scale lines 28 corresponding to the observation window are printed on the surface of the chemical agent tank 13. By setting the scale lines 28, it is convenient to check the remaining amount of the chemical agent tank 13.

[0037] Reference Figure 1 , Figure 2 and Figure 3 On the bottom of the support leg 2, a backing plate 29 is bolted. By setting the backing plate 29, the stability of the device is improved.

[0038] Brief description of the use process: The first motor 4 rotates to drive the reciprocating lead screw 5 to rotate. The reciprocating lead screw 5 rotates to drive the guide block 7 to reciprocate. The guide block 7 reciprocates to drive the sliding block 6 to reciprocate. The sliding block 6 reciprocates to drive the fixed rod 8 to reciprocate. The fixed rod 8 reciprocates to drive the scraper 9 to reciprocate. The scraper 9 cleans the inner wall of the sedimentation tank 1, and can achieve the purpose of facilitating the cleaning of the inner wall of the sedimentation tank 1; the cylinder 19 drives the piston 18 to move upward, so that the pressure inside the fixed cylinder 16 is reduced, and the chemical agent in the chemical agent tank 13 enters the fixed cylinder 16 through the connecting pipe 14 and the first one-way valve 15. The cylinder 19 drives the piston 18 to move downward to inject the chemical agent into the sedimentation tank 1 through the second one-way valve 17. The controller 10 can control the number of times the cylinder 19 presses downward, so as to control the added amount, so as to achieve the purpose of quantitative chemical agent addition.

[0039] This specific embodiment is only an interpretation of the present utility model and does not limit the present utility model. After reading this specification, those skilled in the art can make modifications to this embodiment without creative contributions as needed, but as long as it is within the scope of the claims of the present utility model, it is protected by the patent law.

Claims

1. Sedimentation device for oil and gas field sewage treatment, including a sedimentation tank (1), characterized in that, The bottom of the sedimentation tank (1) is bolted with support legs (2). A water inlet pipe (3) is connected to the sedimentation tank (1). A first motor (4) is bolted to the surface of the sedimentation tank (1). The output end of the first motor (4) is connected with a reciprocating lead screw (5) through a coupling. The reciprocating lead screw (5) is rotatably installed in the sedimentation tank (1) through a bearing. A sliding block (6) is slidably sleeved on the surface of the reciprocating lead screw (5). The inner wall of the sliding block (6) is rotatably connected with a guide block (7), and the guide block (7) is slidably connected with the thread groove on the reciprocating lead screw (5). A fixing rod (8) is bolted to the surface of the sliding block (6). The other end of the fixing rod (8) is bolted with a scraper (9) extending to both sides of the sedimentation tank (1), and the scraper (9) is slidably matched with the inner wall of the sedimentation tank (1). A controller (10) is bolted to the surface of the sedimentation tank (1). A slag discharge mechanism (11) is arranged at the bottom of the sedimentation tank (1). A stirring mechanism (12) is arranged inside the sedimentation tank (1).

2. The sedimentation device for oil and gas field sewage treatment according to claim 1, wherein, A chemical agent tank (13) is bolted to the top of the sedimentation tank (1). A connecting pipe (14) is connected to the chemical agent tank (13). The other end of the connecting pipe (14) is connected with a first one-way valve (15). The other end of the first one-way valve (15) is connected with a fixed cylinder (16). A second one-way valve (17) is arranged at the bottom of the fixed cylinder (16). The outlet end of the second one-way valve (17) extends into the sedimentation tank (1). A piston (18) is slidably sleeved on the inner wall of the fixed cylinder (16). An air cylinder (19) is installed at the top of the fixed cylinder (16), and the output end of the air cylinder (19) penetrates the fixed cylinder (16) and is fixed to the piston (18).

3. The sedimentation device for oil and gas field sewage treatment according to claim 1, characterized in that, The slag discharge mechanism (11) includes a discharge pipe (20). The discharge pipe (20) is connected to the bottom of the sedimentation tank (1). A second motor (21) is bolted to the surface of the discharge pipe (20). The output end of the second motor (21) is connected with an auger (22) through a coupling. The auger (22) is rotatably installed in the sedimentation tank (1).

4. The sedimentation device for oil and gas field sewage treatment according to claim 1, wherein, The stirring mechanism (12) includes two stirring rods (23) rotatably installed in the sedimentation tank (1). One end of the two stirring rods (23) extends outside the sedimentation tank (1) and is fixedly sleeved with a belt pulley (24), and the two belt pulleys (24) are connected by a belt. A fixed shell (25) for covering the two belt pulleys (24) is bolted to the surface of the sedimentation tank (1). A third motor (26) is bolted to the surface of the fixed shell (25), and the output end of the third motor (26) is connected with one of the stirring rods (23) through a coupling.

5. The sedimentation device for oil and gas field sewage treatment according to claim 1, characterized in that, A drain valve (27) is connected to the sedimentation tank (1).

6. The sedimentation device for oil and gas field sewage treatment according to claim 2, wherein An observation window is provided on the chemical agent tank (13). Scale lines (28) corresponding to the observation window are printed on the surface of the chemical agent tank (13).

7. The sedimentation device for oil and gas field sewage treatment according to claim 1, wherein The material of the scraper (9) is rubber material.

8. The sedimentation device for oil and gas field sewage treatment according to claim 1, characterized in that, A backing plate (29) is bolted to the bottom of the support leg (2).

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