CN211871480U - Mud scraper of water treatment air-float solid-liquid separation equipment - Google Patents

Abstract

The utility model belongs to the technical field of the oily sewage treatment plant in oil field, especially, relate to a water treatment air supporting solid-liquid separation equipment mud scraper, including mud scraper, chain, driving shaft, driven shaft, bearing, motor and reduction gear, will driving shaft and driven shaft cut into the same segment number simultaneously, through the coupling joint between two sections adjacent axles, the equal fixed mounting in water treatment container bottom of all axle breakpoint department has middle support frame, and two coaxial middle bearing supports are all installed to the upper end of all middle support frames, and two middle bearing supports are respectively through the axle swivelling joint of bearing with the breakpoint both sides, and the epaxial fixed mounting respectively of breakpoint both sides has a middle sprocket, and the sprocket is connected through a closed loop chain in the middle of the driving shaft that the position is corresponding and the middle sprocket of the driven shaft. The utility model provides a fracture of large-span water treatment container transmission shaft and both ends sprocket asynchronous problem, avoided water treatment system because the part damages the loss of stopping production that causes.

Description

Mud scraper of water treatment air-float solid-liquid separation equipment

Technical Field

The utility model belongs to the technical field of the oily sewage treatment plant in oil field, especially, relate to a water treatment air supporting solid-liquid separation equipment mud scraper.

Background

Air-float solid-liquid separation equipment is often used in the treatment of oilfield produced water to separate and remove suspended particles which cannot be removed in the settling process of sewage. The principle is that gas-dissolving water dissolved in air is mixed into water to be treated through a releaser, micro bubbles (10-30 mu m) are uniformly released, dense micro bubbles collide and adsorb micro suspended particles in the water in the rising process, and suspended matters wrapping the bubbles continuously float upwards and are continuously accumulated on the liquid surface, so that the separation of the suspended matters is realized. The function of the mud scraper is to scrape the scum of the foam-shaped solid floating on the liquid surface to the discharge end so as to be collected and discharged.

The common mud scraper is generally composed of a mud scraper, a chain wheel, a driving shaft, a driven shaft, a bearing, a support, a motor and a speed reducer. The driving shaft and the driven shaft are respectively fixed at two opposite ends of the upper part of the water treatment container with a rectangular liquid surface through a bearing and a side bearing support, and the two shafts are parallel to each other, parallel to the liquid surface and vertical to the side vertical surface of the water treatment container; two ends of the two shafts are respectively provided with a chain wheel, and the two closed-loop chains are respectively matched with the two pairs of chain wheels; the mud scraping plates are vertically and uniformly distributed on a closed ring formed by the whole chain along the direction of the chain, two ends of the long edges of the mud scraping plates are respectively fixed on opposite points of the two chains, and the other long edge is positioned on the outer side of the chain ring; the motor drives the driving shaft and the chain wheel through the speed reducer to drive the two chains to synchronously move, the mud scraping plate moves to the other end from one end of the bottom of the chain ring along with the chains, then bypasses the chain wheel at the opposite end, returns to the starting end from the upper part, and sequentially reciprocates; the progress of the scraper from one end to the other at the bottom of the chain loop, with a portion of the scraper below the liquid level, is used to scrape away deposits (typically oil and mud) floating on the liquid level.

Many times, the size of the water treatment vessel is large, requiring long chains, drive shafts and driven shafts. When the driving shaft and the driven shaft are long, the shafts are often broken due to the action of the driving force and the limitation of the installation precision; furthermore, the long shaft is elastically twisted in the circumferential direction, which causes a rotational phase difference between the sprockets at both ends of the shaft, with the result that the rigid connection point of the scraper and the chain is easily damaged due to stress concentration, and the scraper falls off, especially when the connection point passes through the sprockets. The shaft is broken or the mud scraper falls off, production stopping and maintenance are needed, and for the oil field production water treatment process, the production stopping means great loss.

SUMMERY OF THE UTILITY MODEL

For solving among the background art driving shaft and driven shaft overlength and easily breaking occur to and the elasticity at axle both ends twists reverse the too big problem that makes the rigid connection point of scraping mud version and chain appear stress concentration and damage of phase difference, the utility model provides a water treatment air supporting solid-liquid separation equipment mud scraper, the utility model discloses avoid the transmission shaft fracture, promote the synchronism of both ends sprocket.

The utility model provides a technical scheme is: a kind of water treatment air supporting solid-liquid separation equipment mud scraper, including the mud scraping plate, link chain, drive shaft, driven shaft, bearing, side bearing support, electrical machinery and reduction gear, drive shaft and driven shaft are installed on two opposite ends of the upper portion of water treatment container whose liquid level is rectangular through bearing and side bearing support separately, the diaxon is parallel to each other and parallel to the liquid level, perpendicular to the side elevation of the water treatment container, both ends of diaxon have side chain wheels separately, two closed-loop links cooperate with two pairs of side chain wheels separately, several mud scraping plates and link chain trend looks vertical equipartition in whole closed loop that link chain form, both ends of the long side of mud scraping plate are fixed on opposite point of two link chains through the mud scraping plate skeleton separately, another long side locates at the outside of link chain ring; the motor passes through reduction gear drive driving shaft and limit sprocket, drives two chain synchronous motion, will driving shaft and driven shaft cut into the same number of sections simultaneously, through the coupling joint between two adjacent sections axle, the equal fixed mounting in the water treatment container bottom of all axle breakpoints departments has middle support frame, two coaxial middle bearing support are all installed to the upper end of all middle support frames, two middle bearing support are respectively through the axle swivelling joint of bearing and breakpoint both sides, the epaxial fixed mounting respectively of breakpoint both sides has a middle sprocket, sprocket and driven shaft middle sprocket in the middle of the corresponding driving shaft in position are connected through a closed loop chain.

The side bearing support for supporting the driving shaft is fixedly connected on the water treatment container, the middle bearing support is fixedly connected on the middle supporting frame, the side bearing support for supporting the driven shaft is connected with the water treatment container in a sliding way, the middle bearing support is connected with the middle support frame in a sliding way, the water treatment container is fixedly connected with a tension device for adjusting the distance between the shafts of the driving shaft and the driven shaft, the tension device comprises a tension plate fixedly connected at the upper end of the water treatment container, a pore plate fixedly connected on the side bearing support of the driven shaft, a tension bolt is inserted in the gap in the pore plate, one end of the tension bolt is provided with a nut, the external dimension of the nut is larger than the aperture of the pore plate, thereby causing the axial displacement of the tension bolt to drive the orifice plate and the driven shaft to move, the tension plate is fixedly connected with a nut, and the other end of the tension bolt is screwed in the nut; the ratio of the length to the diameter of each section is not more than 20.

The utility model has the advantages that: by adopting the scheme provided by the invention, the problems of transmission shaft fracture and unsynchronization of chain wheels at two ends of a large-span water treatment container are solved, and the production stop loss of a water treatment system caused by part damage is avoided. The striking off degree of depth that has solved the chain simultaneously and has caved in and lead to a plurality of mud scrapers is different, and some mud scrapers do not contact the suspended solid even, play the problem of mud scraping effect, the utility model discloses a mud scraping depth degree that makes the mud scraper is unanimous basically, and mud scraping efficiency promotes, and mud scraping effect is more ideal.

Drawings

Fig. 1 is a front view of the present invention.

Fig. 2 is a side view of the present invention.

In the figure: 1-middle support frame, 2-liquid to be treated, 3-liquid level, 4-side bearing support, 5-side chain wheel, 6-second section shaft, 7-middle bearing support, 8-coupler, 9-chain, 10-scraper framework, 11-scraper, 12-first section shaft, 13-reducer, 14-middle chain wheel, 15-driving shaft, 16-driven shaft, 17-tension plate, 18-pore plate, 19-tension bolt, 20-nut and 21-nut.

Detailed Description

In order to make the technical problem, technical solution and advantageous effects to be solved by the present invention more clearly understood, the following description is given in conjunction with the accompanying drawings and embodiments to illustrate the present invention in further detail. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

The device comprises mud scraping plates 11, chains 9, a driving shaft 15, a driven shaft 16, bearings, side bearing supports 4, a motor and a speed reducer 13, wherein the driving shaft 15 and the driven shaft 16 are respectively installed at two opposite ends of the upper part of a water treatment container with a rectangular liquid level 3 through the bearings and the side bearing supports 4, the two shafts are parallel to each other and parallel to the liquid level 3 and are vertical to the side vertical surface of the water treatment container, side chain wheels 5 are respectively arranged at two ends of the two shafts, two closed-loop chains 9 are respectively matched with the two pairs of side chain wheels 5, a plurality of mud scraping plates 11 are vertically and uniformly distributed on a closed loop formed by the whole chains 9 along the moving direction of the chains 9, two ends of a long edge of each mud scraping plate 11 are respectively fixed at opposite points of the two chains 9 through mud scraping plate frameworks 10; the motor drives the driving shaft 15 and the side chain wheel 5 through the speed reducer 13 to drive the two chains 9 to move synchronously, which is a structure existing in the prior art and is not described in detail herein.

The utility model discloses an innovation point lies in: the driving shaft 15 and the driven shaft 16 are simultaneously cut into two sections which are respectively called as a first section shaft 12 and a second section shaft 6, the two sections are equal in length, the two sections of shafts are connected through the coupler 8, the phenomenon that the shaft length is too long and the circumferential elastic torque is too large is avoided, the problems that a transmission shaft of a large-span water treatment container is broken due to low installation precision and chain wheels at two ends are not synchronous are solved, and the production stop loss of a water treatment system caused by component damage is avoided. The bottom of the water treatment container at the shaft breakpoint is fixedly provided with an intermediate support frame 1, the intermediate support frame 1 is used for supporting a shaft at the breakpoint, the upper end of the intermediate support frame 1 is provided with two coaxial intermediate bearing supports 7, the two intermediate bearing supports 7 are respectively connected with the shafts at two sides of the breakpoint through bearings in a rotating manner, the shafts at two sides of the breakpoint are respectively fixedly provided with an intermediate chain wheel 14, and the intermediate chain wheel 14 of the driving shaft 15 and the intermediate chain wheel 14 of the driven shaft 16 which correspond to each other in position are connected through a closed-loop chain 9.

The side bearing support 4 for supporting the driving shaft 15 is fixedly connected to the upper end of the water treatment container, and the middle bearing support 7 is fixedly connected to the middle support frame 1; the side bearing support 4 for supporting the driven shaft 16 is connected with the water treatment container in a sliding way, the sliding direction is the axis connecting line direction of the two shafts, and the middle bearing support 7 is connected with the middle support frame 1 in a sliding way, and the sliding direction is the same as the above. Fixedly connected with is used for adjusting the take-up unit of owner, driven shaft 15, 16 wheel base on the water treatment container, thereby make the installation, it is more convenient to dismantle chain 9, also enable chain 9 by taut, it is different to avoid chain 9 to collapse to lead to the striking off degree of depth of a plurality of mud scrapers 11, it is too deep that individual mud scraper 11 strikes off the degree of depth, in stretching into pending liquid 2, lead to motor load too big, influence motor life, and some mud scrapers 11 do not contact liquid level 3 even, play not reach the mud scraping effect, the utility model provides an it is unanimous basically to make the mud scraping degree of depth of mud scraper 11, and mud scraping efficiency promotes, and mud scraping effect is more ideal. The tensioning device comprises a tensioning plate 17 fixedly connected to the upper end of the water treatment container and an orifice plate 18 fixedly connected to the side bearing support 4 of the driven shaft 16, a tensioning bolt 19 is inserted into a gap in the orifice plate 18, a nut 20 is arranged at one end of the tensioning bolt 19, the external dimension of the nut 20 is larger than the aperture of the orifice plate 18, the nut 20 is abutted against the orifice plate 18, so that the axial displacement of the tensioning bolt 19 drives the orifice plate 18 and the driven shaft 16 to move, a nut 21 is fixedly connected to the tensioning plate 17, the other end of the tensioning bolt 19 is screwed in the nut 21, and the nut 20 or a square column at the end part of the tensioning bolt 19 is screwed, so that the chain 9 is tensioned; in order to ensure that each segmented shaft does not have large circumferential torque, the ratio of the length to the diameter of each segmented shaft is not more than 20.

Claims (3)

1. A water treatment air-flotation solid-liquid separation equipment mud scraper comprises mud scraping plates (11), chains (9), a driving shaft (15), a driven shaft (16), a bearing, a side bearing support (4), a motor and a speed reducer (13), wherein the driving shaft (15) and the driven shaft (16) are respectively arranged at two opposite ends of the upper part of a water treatment container with a rectangular liquid level (3) through the bearing and the side bearing support (4), the two shafts are parallel to each other and parallel to the liquid level (3) and are vertical to the side vertical surface of the water treatment container, side chain wheels (5) are respectively arranged at two ends of the two shafts, two closed-loop chains (9) are respectively matched with the two opposite side chain wheels (5), a plurality of mud scraping plates (11) and the chains (9) are vertically and uniformly distributed on a closed loop formed by the whole chains (9), two ends of the long edges of the mud scraping plates (11) are respectively fixed at opposite points of the two chains (9) through mud scraping, the other long edge is positioned outside the chain (9) ring; the motor passes through reduction gear (13) drive driving shaft (15) and limit sprocket (5), drives two chain (9) synchronous motion, its characterized in that: will driving shaft (15) and driven shaft (16) cut into the same segment number simultaneously, connect through shaft coupling (8) between two adjacent sections axle, equal fixed mounting in the water treatment container bottom of all axle breakpoints department has middle support frame (1), two coaxial middle bearing support (7) are all installed to the upper end of all middle support frames (1), two middle bearing support (7) are respectively through the axle swivelling joint of bearing and breakpoint both sides, epaxial fixed mounting respectively of breakpoint both sides has middle sprocket (14), sprocket (14) are connected through a closed loop chain (9) in the middle of sprocket (14) and driven shaft (16) in the middle of driving shaft (15) that the position is corresponding.

2. The mud scraper of the water treatment air-flotation solid-liquid separation equipment as claimed in claim 1, wherein: the side bearing support (4) used for supporting the driving shaft (15) is fixedly connected to a water treatment container, the middle bearing support (7) is fixedly connected to the middle support frame (1) and used for supporting the side bearing support (4) of the driven shaft (16) and the water treatment container in a sliding connection mode, the middle bearing support (7) is in sliding connection with the middle support frame (1), a tensioning device used for adjusting the axle distance of the driving shaft (15) and the axle distance of the driven shaft (16) is fixedly connected to the water treatment container, the tensioning device comprises a tensioning plate (17) fixedly connected to the upper end of the water treatment container and a pore plate (18) fixedly connected to the side bearing support (4) of the driven shaft (16), a tensioning bolt (19) is inserted into the pore plate (18) in a gap mode, one end of the tensioning bolt (19) is provided with a nut (20), and the shape size of the nut (20) is larger than the aperture of the pore plate (, therefore, the axial displacement of the tension bolt (19) drives the pore plate (18) and the driven shaft (16) to move, the tension plate (17) is fixedly connected with a nut (21), and the other end of the tension bolt (19) is screwed in the nut (21).

3. The mud scraper of the water treatment air-flotation solid-liquid separation equipment as claimed in claim 1, wherein: the ratio of the length to the diameter of each section is not more than 20.

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