A flocculant feeding device and a feeding method for an oil sewage treatment tank

Abstract

The present application relates to sewage treatment equipment technical field, especially to a kind of flocculant feeding equipment and feeding method for oil sewage treatment tank.The technical problem of the present application is that the current flocculant feeding equipment is not uniform and sufficient when feeding flocculant, which leads to poor flocculant feeding effect.A kind of flocculant feeding equipment and feeding method for oil sewage treatment tank, including reaction frame, the reaction frame both sides are opened with water flow hole, one of the water flow hole of the reaction frame is fixedly connected with water inlet pipe.Electric sliding rail drives electric sliding block, fixed rack and inclined plane plate reciprocate, fixed rack reciprocates through water inlet plate and water outlet plate to make oil sewage enter reaction frame reaction by batch and then discharge, and the gap between reaction frame and sliding block is generated by reset of inclined plane plate, so that the reaction frame is not easy to leave impurities, thereby improving the subsequent flocculant feeding efficiency.

Description

TECHNICAL FIELD

[0001] The present application relates to the sewage treatment equipment technical field, especially to a kind of oil sewage treatment tank flocculant feeding equipment and feeding method. BACKGROUND

[0002] Oil sewage refers to the wastewater containing oil or oil derivatives, in order to remove oil, suspended solids, heavy metals and other pollutants, staff usually flocculant is fed to the oil sewage in the treatment tank, so as to reach the environmental protection discharge standard or reusable water quality requirements.

[0003] Because flocculant is easy to absorb moisture in the air into a lump, and the distribution of flocculant can directly affect the feeding effect, and the current flocculant feeding equipment is not convenient to crush the flocculant into a lump, which leads to insufficient contact and reaction of flocculant with oil sewage, and the existing flocculant feeding equipment is not convenient to make flocculant more evenly distributed in oil sewage, which is not conducive to flocculant more evenly reacting with oil sewage, so that the feeding effect of flocculant is poor. SUMMARY

[0004] In order to overcome the above-mentioned shortcomings, the present application provides a kind of oil sewage treatment tank flocculant feeding equipment and feeding method, which can make flocculant fully and evenly feed in oil sewage, so that flocculant more fully and effectively reacts with oil sewage, thereby improving the feeding effect of flocculant.

[0005] Technical scheme: a kind of oil sewage treatment tank flocculant feeding equipment and feeding method, including reaction frame, the reaction frame is conical structure, both sides of the reaction frame are opened water flow hole, the bottom of the reaction frame is opened discharge hole, the top of the reaction frame is opened feed hole, one of the water flow holes of the reaction frame is fixedly connected with water inlet pipe, the other water flow hole of the reaction frame is fixedly connected with water outlet pipe, the feed hole of the reaction frame is fixedly connected with feed pipe, the water inlet pipe, the water outlet pipe and the feed pipe are communicated with the reaction frame, the opening and closing mechanism for alternately blocking water flow is arranged between the water inlet pipe and the water outlet pipe, the feed pipe is provided with the feeding mechanism for intermittent rolling flocculant, the reaction frame is provided with the discharge mechanism for intermittent discharge.

[0006] Furthermore, particularly preferably, the opening and closing mechanism comprises an electric sliding rail fixedly connected between the water outlet pipe and the water inlet pipe, an electric sliding block slidably connected to the electric sliding rail, a fixed rack fixedly connected to the electric sliding block, a rotating shaft one rotatably connected to the water inlet pipe, a water inlet plate fixedly connected to the rotating shaft one, a gear one fixedly connected to the bottom end of the rotating shaft one, a rotating shaft two rotatably connected to the water outlet pipe, a water outlet plate fixedly connected to the rotating shaft two, the water outlet plate being in contact with the inner wall of the water outlet pipe, the water inlet plate being perpendicular to the water outlet plate, a gear two fixedly connected to the bottom end of the rotating shaft two, and a friction ring fixedly connected to the bottom of the water inlet pipe and the water outlet pipe, the two friction rings being in close contact with the rotating shaft one and the rotating shaft two, respectively.

[0007] Furthermore, particularly preferably, the feeding mechanism comprises two rolling gears rotatably connected in the feeding pipe, the two rolling gears being symmetrically arranged, the two rolling gears being in mesh with each other, the two sides of the two rolling gears being in contact with the inner wall of the feeding pipe, one end of one of the rolling gears being fixedly connected with a gear three, a limiting block being fixedly connected to the reaction frame, a sliding rack being slidably connected to the limiting block, one end of the sliding rack being in mesh with the gear three, the other end of the sliding rack being provided with a long slot, a rotating rod being fixedly connected to the top end of the rotating shaft one, one end of the rotating rod being slidably connected to the long slot of the sliding rack.

[0008] Furthermore, particularly preferably, the discharging mechanism comprises a limiting ring one fixedly connected to the bottom end of the reaction frame, a sliding block fixedly connected to the limiting ring one, the side surface of the sliding block being in contact with the inner wall of the reaction frame, a compression spring connected between the sliding block and the limiting ring one, an extruding rod fixedly connected to one side of the bottom of the sliding block, a limiting plate fixedly connected to the fixed rack, and an inclined plate slidably connected to the limiting plate.

[0009] Furthermore, particularly preferably, the top of the sliding block is in a semispherical structure.

[0010] Furthermore, it is particularly preferred that a dispersing mechanism is further included, which is arranged between the reaction frame and the water inlet pipe, and is used for dispersing distribution of the flocculating agent, and the dispersing mechanism comprises a transmission frame which is fixedly connected between the reaction frame and the water inlet pipe, and has a cavity which is in communication with the reaction frame, and the transmission frame is rotatably connected with the rotating shaft, and the inner wall of the reaction frame is fixedly connected with two limiting rings, and the limiting rings are rotatably connected with a dispersing disc, and the rotating shaft is fixedly connected with a driving wheel which is arranged in the cavity of the transmission frame, and the bottom end of the dispersing disc is fixedly connected with a driven wheel, and the driving wheel and the driven wheel are wound with a belt.

[0011] Furthermore, it is particularly preferred that the dispersing disc is in a conical structure, and a plurality of round holes are formed in the dispersing disc.

[0012] Furthermore, it is particularly preferred that a scraping rod is further included, which is fixedly connected with the inner wall of the reaction frame, and is in contact with the top surface of the dispersing disc.

[0013] Furthermore, it is particularly preferred that two brushes are further included, which are respectively fixedly connected with the lower sides of the inner wall of the water inlet pipe, and are respectively in contact with the bottom of the two crushing gears.

[0014] A method for flocculating agent feeding of a petroleum sewage treatment tank flocculating agent feeding device, comprising the following steps:

[0015] Step one: when it is installed, the staff installs one end of the water inlet pipe on the drain pipe of the treatment tank, installs the drain pipe on one end of the water outlet pipe, and installs the container containing the flocculating agent on the top of the feeding pipe;

[0016] Step two: when the flocculating agent needs to be fed, the staff starts the electric slide rail, the electric slide rail drives the electric sliding block and the fixed rack to move back and forth together, the movement of the fixed rack makes the two crushing gears crush the flocculating agent and discharge it into the petroleum sewage for reaction, and the back-and-forth movement of the fixed rack makes the petroleum sewage enter the reaction frame in batches for reaction and then be discharged;

[0017] Step three: when the feeding is completed, the staff can close the electric slide rail after the electric sliding block is reset.

[0018] The present application has the following advantages: 1, the electric sliding rail drives the electric sliding block to move back and forth, the electric sliding block moving back and forth drives the fixed rack, the limiting plate and the inclined plate to move back and forth, the fixed rack moving back and forth drives the water inlet plate and the water outlet plate to make the petroleum sewage enter the reaction frame in batches for reaction and then be discharged, so that the flocculant feeding efficiency is improved, and the sliding block is separated from the inner wall of the reaction frame and a gap is formed by the reset of the inclined plate, the precipitate after reaction slides off through the inner wall of the reaction frame, so that the reaction frame is not easy to leave impurities, and the subsequent petroleum sewage is more fully reacted.

[0019] 2, the fixed rack moves at the same time, the rotating rod drives the sliding rack to move, the sliding rack moves, the two crushing gears crush the flocculant and discharge it into the petroleum sewage in the reaction frame for reaction, so that the flocculant is crushed, and the flocculant and the petroleum sewage can be more fully contacted and reacted, so that the feeding effect of the flocculant is improved.

[0020] 3, the rotation of the rotating shaft drives the driving wheel to rotate, the driving wheel rotates to drive the scattering disc to rotate through the belt and the driven wheel, the scattering disc rotates to scatter the remaining flocculant around, so that the flocculant is more evenly distributed in the petroleum sewage, and the flocculant is more evenly reacted with the petroleum sewage, so that the feeding effect of the flocculant is improved. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 It is the first kind of three-dimensional structure schematic diagram of the present application.

[0022] Figure 2 It is the second kind of three-dimensional structure schematic diagram of the present application.

[0023] Figure 3 It is the sectional view three-dimensional structure schematic diagram of the present application.

[0024] Figure 4 It is the partial sectional view three-dimensional structure schematic diagram of the opening and closing mechanism of the present application.

[0025] Figure 5 It is the partial sectional view three-dimensional structure schematic diagram of the discharging mechanism of the present application.

[0026] Figure 6 It is the partial sectional view three-dimensional structure schematic diagram of the present application.

[0027] Figure 7 It is the split three-dimensional structure schematic diagram of the discharging mechanism and the fixed rack of the present application.

[0028] Figure 8 It is the first kind of partial sectional view three-dimensional structure schematic diagram of the scattering mechanism of the present application.

[0029] Figure 9It is the second part of the invention of the spread mechanism of the sectional view structure schematic diagram.

[0030] Figure 10 It is the part of the invention of the spread mechanism of the sectional view structure schematic diagram.

[0031] Figure 11 It is the part of the invention of the feed pipe, the crushing gear and the brush of the sectional view structure schematic diagram.

[0032] In the above drawing: 1, reaction frame, 2, water inlet pipe, 3, water outlet pipe, 4, feed pipe, 51, electric sliding rail, 52, electric sliding block, 53, fixed rack, 54, rotating shaft one, 55, water inlet plate, 56, gear one, 57, rotating shaft two, 58, water outlet plate, 59, gear two, 510, friction ring, 61, crushing gear, 62, gear three, 63, limit block, 64, sliding rack, 65, rotating rod, 71, limit ring one, 72, sliding block, 73, extrusion rod, 74, limit plate, 75, inclined plate, 76, compression spring, 81, transmission frame, 82, limit ring two, 83, spread disc, 84, driving wheel, 85, driven wheel, 86, belt, 9, scraper, 10, brush. DETAILED DESCRIPTION

[0033] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "connected", "connected" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0034] Example 1: a kind of petroleum sewage treatment tank flocculant feeding equipment and feeding method, as shown in Figures 1-11 The reaction frame 1 is a conical structure, both sides of the reaction frame 1 are provided with water flow holes, the bottom of the reaction frame 1 is provided with a discharge hole, the top of the reaction frame 1 is provided with a feed hole, one of the water flow holes of the reaction frame 1 is welded with a water inlet pipe 2, the other water flow hole of the reaction frame 1 is welded with a water outlet pipe 3, and the feed hole of the reaction frame 1 is welded with a feed pipe 4. The water inlet pipe 2, the water outlet pipe 3 and the feed pipe 4 are communicated with the reaction frame 1, the water inlet pipe 2 and the water outlet pipe 3 are provided with an opening and closing mechanism for intermittent flow and blocking water flow, the feed pipe 4 is provided with a feeding mechanism for intermittent crushing flocculant, and the reaction frame 1 is provided with a discharge mechanism for intermittent discharge.

[0035] The opening and closing mechanism comprises an electric sliding rail 51 which is connected between the water outlet pipe 3 and the water inlet pipe 2 through bolts, an electric sliding block 52 is slidably connected to the electric sliding rail 51, a fixed rack 53 is connected to the electric sliding block 52 through bolts, a rotating shaft one 54 is rotatably connected to the water inlet pipe 2, a water inlet plate 55 is connected to the rotating shaft one 54 through bolts, a gear one 56 is connected to the bottom end of the rotating shaft one 54 through a key, a rotating shaft two 57 is rotatably connected to the water outlet pipe 3, a water outlet plate 58 is connected to the rotating shaft two 57 through bolts, the water outlet plate 58 is in contact with the inner wall of the water outlet pipe 3, the water inlet plate 55 is perpendicular to the water outlet plate 58, the water inlet plate 55 and the water outlet plate 58 are used for blocking or communicating water flow, the bottom end of the rotating shaft two 57 is connected to a gear two 59 through a key, the fixed rack 53 is used for driving the gear one 56 and the gear two 59 to rotate in sequence, the water inlet pipe 2 and the bottom of the water outlet pipe 3 are both fixedly connected with a friction ring 510, the two friction rings 510 are in close contact with the rotating shaft one 54 and the rotating shaft two 57 respectively, and the friction ring 510 is used for stabilizing the water inlet plate 55 and the water outlet plate 58 from being easily affected by water flow and rotating.

[0036] The feeding mechanism comprises two crushing gears 61 which are rotatably connected in the feeding pipe 4, the two crushing gears 61 are symmetrically arranged, the two crushing gears 61 are in meshing with each other, the two sides of the two crushing gears 61 are in contact with the inner wall of the feeding pipe 4, and the crushing gear 61 is used for crushing and feeding flocculating agent, one end of one of the crushing gears 61 is connected to a gear three 62 through a key, a limiting block 63 is welded on the reaction frame 1, a sliding rack 64 is slidably connected to the limiting block 63, one end of the sliding rack 64 is in meshing with the gear three 62, the other end of the sliding rack 64 is provided with a long slot, a rotating rod 65 is welded on the top end of the rotating shaft one 54, and one end of the rotating rod 65 is slidably connected to the long slot of the sliding rack 64.

[0037] The discharging mechanism comprises a limiting ring one 71 which is welded at the bottom end of the reaction frame 1, a sliding block 72 is slidably connected to the limiting ring one 71, the side surface of the sliding block 72 is in contact with the inner wall of the reaction frame 1, a compression spring 76 is connected between the sliding block 72 and the limiting ring one 71, the sliding block 72 is used for blocking water flow and discharging precipitate, an extrusion rod 73 is welded on one side of the bottom of the sliding block 72, a limiting plate 74 is welded on the fixed rack 53, an inclined plate 75 is slidably connected to the limiting plate 74, and the inclined plate 75 is used for extruding the extrusion rod 73.

[0038] The top of the sliding block 72 is in a semispherical structure.

[0039] Firstly, the staff will install one end of the inlet pipe 2 on the drain pipe of the treatment tank, and at the same time install the drain pipe on one end of the outlet pipe 3, and install the container containing flocculant on the top of the feeding pipe 4, at the same time, the petroleum sewage in the treatment tank will enter the reaction frame 1 through the inlet pipe 2, and then be blocked in the reaction frame 1 by the outlet plate 58 and the sliding block 72, and the flocculant will enter the feeding pipe 4 and be blocked by the two crushing gears 61, then the staff starts the electric sliding rail 51, the electric sliding rail 51 drives the electric sliding block 52 to move, the movement of the electric sliding block 52 drives the fixed rack 53, the limiting plate 74 and the inclined plate 75 to move together, the movement of the fixed rack 53 first engages and drives the gear one 56 to rotate, the rotation of the gear one 56 drives the inlet plate 55 and the rotating rod 65 to rotate through the rotating shaft one 54, the rotation of the inlet plate 55 blocks the petroleum sewage in the treatment tank from entering the reaction frame 1, and at the same time the rotation of the rotating rod 65 drives the sliding rack 64 to move through the two crushing gears 61, the movement of the sliding rack 64 drives the two crushing gears 61 to rotate through the gear three 62, the rotation of the two crushing gears 61 crushes the flocculant in the feeding pipe 4 and discharges it into the petroleum sewage in the reaction frame 1 for reaction, so that the flocculant is crushed, and the flocculant and the petroleum sewage can be more fully contacted and reacted, so as to improve the effect of flocculant feeding, the brush 10 brushes off the flocculant attached to the crushing gears 61, so that the crushed flocculant is not easy to stick to the crushing gears 61, thereby improving the utilization efficiency of the flocculant, the precipitate after the reaction of the petroleum sewage and the flocculant falls between the sliding block 72 and the inner wall of the reaction frame 1, then the fixed rack 53 continues to move and disengages from the gear one 56, then the bottom surface of the inclined plate 75 contacts the extrusion rod 73, the inclined plate 75 is lifted by the extrusion rod 73, then the inclined plate 75 disengages from the extrusion rod 73 and resets downward, the fixed rack 53 continues to move and engages and drives the gear two 59 to rotate, the rotation of the gear two 59 drives the outlet plate 58 to rotate through the rotating shaft two 57, the rotation of the outlet plate 58 no longer blocks the petroleum sewage after reaction in the reaction frame 1, and at the same time the petroleum sewage after reaction in the reaction frame 1 is discharged through the outlet pipe 3, after the petroleum sewage after reaction is discharged from the reaction frame 1, the electric sliding rail 51 drives the electric sliding block 52 to reset, the reset of the electric sliding block 52 drives the fixed rack 53 and the inclined plate 75 to move reversely, the reverse movement of the fixed rack 53 drives the outlet plate 58 to reset through the gear two 59, the outlet plate 58 blocks the water flow again, then the fixed rack 53 continues to move and drives the top surface of the inclined plate 75 to contact the extrusion rod 73 first, then the inclined plate 75 continues to move and drives the sliding block 72 to move upward through the extrusion rod 73, the compression spring 76 is compressed, the upward movement of the sliding block 72 disengages from the inner wall of the reaction frame 1 and forms a gap, the precipitate after reaction slides through the inner wall of the reaction frame 1, thereby the reaction frame 1 is not easy to leave impurities, thereby the subsequent petroleum sewage is more fully reacted, then the inclined plate 75 continues to move and disengages from the extrusion rod 73,The compression spring 76 resets the sliding block 72 downward and in close contact with the inner wall of the reaction frame 1, and then the fixed rack 53 continues to move to reset the water inlet plate 55, the rotating rod 65, the sliding rack 64 and the crushing gear 61 through the gear one 56, and the water inlet plate 55 is no longer blocked from the petroleum sewage in the treatment tank, and the process is repeated, and the fixed rack 53 reciprocatingly moves to make the petroleum sewage enter the reaction frame 1 in batches through the water inlet plate 55 and the water outlet plate 58 for reaction and discharge, thereby improving the efficiency of the flocculant injection, and when the flocculant injection work is completed, the staff can close the electric sliding rail 51 after the electric sliding block 52 is reset.

[0040] In addition, as shown in Figures 8-10 the embodiment 1, a dispersing mechanism is further included between the reaction frame 1 and the water inlet pipe 2, the dispersing mechanism is used for dispersing the flocculant, the dispersing mechanism includes a transmission frame 81 welded between the reaction frame 1 and the water inlet pipe 2, the transmission frame 81 is internally provided with a cavity, the cavity of the transmission frame 81 is in communication with the reaction frame 1, the transmission frame 81 is rotationally connected with the rotating shaft one 54, a limiting ring two 82 is welded on the inner wall of the reaction frame 1, a dispersing disc 83 is rotationally connected on the limiting ring two 82, the dispersing disc 83 is used for dispersing the flocculant, a driving wheel 84 is bolted on the rotating shaft one 54, the driving wheel 84 is located in the cavity of the transmission frame 81, a driven wheel 85 is bolted on the bottom end of the dispersing disc 83, and a belt 86 is wound between the driving wheel 84 and the driven wheel 85.

[0041] The dispersing disc 83 is a conical structure, and a plurality of circular holes are formed in the dispersing disc 83.

[0042] A scraping rod 9 is further included, the scraping rod 9 is welded on the inner wall of the reaction frame 1, the scraping rod 9 is in contact with the top surface of the dispersing disc 83, and the scraping rod 9 is used for scraping the flocculant adhered on the dispersing disc 83.

[0043] Two brushes 10 are further included, the two brushes 10 are respectively bolted on the lower sides of the inner wall of the feeding pipe 4, the two brushes 10 are respectively in contact with the bottoms of the two crushing gears 61, and the brushes 10 are used for brushing the flocculant adhered on the crushing gears 61.

[0044] At first, the part of flocculants thrown by the crushing gear 61 will fall into the petroleum sewage through the round holes of the scattering disc 83, and the rest of the flocculants will fall on the scattering disc 83, and the rotation of the rotating shaft 54 will drive the driving wheel 84 to rotate, the rotation of the driving wheel 84 will drive the scattering disc 83 to rotate through the belt 86 and the driven wheel 85, under the action of centrifugal force, the rotation of the scattering disc 83 will scatter the rest of the flocculants to the surrounding, so that the flocculants are more evenly distributed in the petroleum sewage, so that the flocculants react more evenly with the petroleum sewage, and at the same time, the scraping rod 9 will scrape off the flocculants attached to the scattering disc 83, thereby improving the throwing effect of the flocculants.

[0045] Embodiments of the application are presented for the purpose of illustration and description, and are not intended to be exhaustive or to limit the application to the precise forms disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art. Embodiments were chosen and described in order to best explain the principles of the application and its practical application, and to enable others skilled in the art to understand the application for various embodiments with various modifications as are suited to the particular use contemplated.

Claims

1. An oil sewage treatment tank flocculant feeding device, characterized in that, The utility model provides a reaction frame (1) is conical structure, both sides of reaction frame (1) are opened water flow hole, the bottom of reaction frame (1) is opened discharge hole, the top of reaction frame (1) is opened feed hole, one of water flow hole of reaction frame (1) is fixedly connected with inlet pipe (2), the other water flow hole of reaction frame (1) is fixedly connected with outlet pipe (3), the feed hole of reaction frame (1) is fixedly connected with feed pipe (4), and inlet pipe (2), outlet pipe (3) and feed pipe (4) all are communicated with reaction frame (1), and the opening and closing mechanism for alternating type blocking water flow is equipped between inlet pipe (2) and outlet pipe (3), and the feeding mechanism for intermittent rolling pressure flocculating agent is equipped on feed pipe (4), and the discharge mechanism for intermittent discharge is equipped on reaction frame (1), The opening and closing mechanism includes electric slide rail (51), electric slide rail (51) is fixedly connected between outlet pipe (3) and inlet pipe (2), electric slide rail (51) is slidably connected with electric slide block (52), electric slide block (52) is fixedly connected with fixed rack (53), inlet pipe (2) is rotatably connected with rotating shaft one (54), rotating shaft one (54) is fixedly connected with inlet plate (55), the bottom of rotating shaft one (54) is fixedly connected with gear one (56), outlet pipe (3) is rotatably connected with rotating shaft two (57), rotating shaft two (57) is fixedly connected with outlet plate (58), outlet plate (58) is in contact with the inner wall of outlet pipe (3), inlet plate (55) is perpendicular to outlet plate (58), the bottom of rotating shaft two (57) is fixedly connected with gear two (59), and inlet pipe (2) and outlet pipe (3) bottom are fixedly connected with friction ring (510), and two friction rings (510) are in close contact with rotating shaft one (54) and rotating shaft two (57) respectively, The feeding mechanism includes rolling gear (61), two rolling gears (61) are rotatably connected in feed pipe (4), two rolling gears (61) are symmetrically arranged, two rolling gears (61) are engaged with each other, two sides of two rolling gears (61) are in contact with the inner wall of feed pipe (4), one end of one rolling gear (61) is fixedly connected with gear three (62), reaction frame (1) is fixedly connected with limit block (63), limit block (63) is slidably connected with sliding rack (64), one end of sliding rack (64) is engaged with gear three (62), the other end of sliding rack (64) is opened long slot, the top of rotating shaft one (54) is fixedly connected with rotating rod (65), one end of rotating rod (65) is slidably connected with the long slot of sliding rack (64). The discharging mechanism includes a limiting ring one (71), the limiting ring one (71) is fixedly connected at the bottom end of the reaction frame (1), a sliding block (72) is slidably connected on the limiting ring one (71), the side surface of the sliding block (72) is in contact with the inner wall of the reaction frame (1), a compression spring (76) is connected between the sliding block (72) and the limiting ring one (71), an extrusion rod (73) is fixedly connected on one side of the bottom of the sliding block (72), a limiting plate (74) is fixedly connected on the fixed rack (53), an inclined plate (75) is slidably connected on the limiting plate (74), the sliding block (72) is used for blocking water flow and discharging sediments, and the inclined plate (75) is used for extruding the extrusion rod (73).

2. The flocculant feeding device for oil sewage treatment tank according to claim 1, wherein the flocculant feeding device is characterized by comprising: a flocculant feeding device according to claim 1; and a flocculant tank connected to the flocculant feeding device. The top of the sliding block (72) is a hemispherical structure.

3. The flocculant feeding device for an oil sewage treatment tank according to claim 2, wherein The dispersion mechanism is arranged between the reaction frame (1) and the water inlet pipe (2), and is used for dispersing flocculants, the dispersion mechanism includes a transmission frame (81), the transmission frame (81) is fixedly connected between the reaction frame (1) and the water inlet pipe (2), a cavity is formed in the transmission frame (81), the cavity of the transmission frame (81) is in communication with the reaction frame (1), the transmission frame (81) is rotatably connected with the rotating shaft one (54), a limiting ring two (82) is fixedly connected on the inner wall of the reaction frame (1), a scattering disc (83) is rotatably connected on the limiting ring two (82), a driving wheel (84) is fixedly connected on the rotating shaft one (54), the driving wheel (84) is located in the cavity of the transmission frame (81), a driven wheel (85) is fixedly connected at the bottom end of the scattering disc (83), and a belt (86) is wound between the driving wheel (84) and the driven wheel (85).

4. The flocculant feeding device for an oil sewage treatment tank according to claim 3, wherein The scattering disc (83) is a conical structure, and a plurality of circular holes are formed in the scattering disc (83).

5. The flocculant feeding device for an oil sewage treatment tank according to claim 4, wherein The scraping rod (9) is fixedly connected to the inner wall of the reaction frame (1), and the scraping rod (9) is in contact with the top surface of the scattering disc (83).

6. The flocculant feeding device for an oil sewage treatment tank according to claim 5, wherein The two brushes (10) are fixedly connected to the lower sides of the inner wall of the feeding pipe (4), and the two brushes (10) are in contact with the bottoms of the two crushing gears (61).

7. The method of claim 6, wherein the method is characterized by, The method comprises the following steps: Step one: when installing, the staff installs one end of the water inlet pipe (2) on the drain pipe of the treatment tank, installs the drain pipe on one end of the water outlet pipe (3), and installs the container containing flocculants on the top of the feeding pipe (4); Step two: when the flocculants need to be put in, the staff starts the electric slide rail (51), which drives the electric slide block (52) and the fixed rack (53) to move back and forth together, the movement of the fixed rack (53) makes the two crushing gears (61) crush the flocculants and put them into the petroleum sewage for reaction, and the back and forth movement of the fixed rack (53) makes the petroleum sewage enter the reaction frame (1) in batches for reaction and then discharge; Step three: when the putting is finished, the staff can close the electric slide rail (51) after the electric slide block (52) is reset.

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