Boiler wastewater recovery sedimentation tank

Abstract

A boiler wastewater recovery settling pond comprises a settling pond body, a water inlet and a water outlet, the water inlet and the water outlet are formed in the upper portion of one side of the settling pond body, rails are arranged on the left side and the right side of the upper portion of the settling pond body, a traveling crane is arranged on the rails in a supporting mode, and a sewage cleaning assembly capable of vertically and rapidly lifting a scraper to clean a sludge layer is arranged on the lower portion of the traveling crane. According to the utility model, a series of problems caused by cleaning settled sludge are fundamentally solved by installing the vertically lifting sewage cleaning assembly at the lower part of the travelling crane, unstable factors caused by sewage cleaning are better solved, the settling process of suspended matters in the settling pond is shortened, disturbance to sludge at the bottom of the settling pond is reduced, and the settling efficiency of the settling pond is improved. And meanwhile, the working efficiency in the cleaning process is greatly improved, the labor intensity of constructors is relieved, and the production cost is reduced.

Description

Technical Field

[0001] The utility model relates to the field of sedimentation tanks, in particular to a boiler wastewater recovery sedimentation tank. Background Art

[0002] A sedimentation tank is a building that can remove suspended matter from wastewater. It is a device used to purify water. The suspended matter will rely on natural sedimentation or coagulation sedimentation to fall and accumulate at the bottom of the sedimentation tank to form sludge. Once the sludge is formed, it needs to be cleaned, otherwise it will affect the quality of wastewater recovery.

[0003] The existing cleaning methods are manual cleaning and mechanical cleaning. When cleaning manually, water injection must be stopped, and all the clarification in the sedimentation tank must be drained to expose the sludge layer. After the sludge layer is exposed, manual cleaning is performed using a large number of cleaning tools. This method is slow and complicated to operate, and will also increase the corresponding production cost.

[0004] When the existing flap-type cleaning equipment is on the return journey, the driving motor will flip the scraper. Since the scraper is still below the liquid surface and in contact with the sludge layer during flipping, the settled sludge will be easily disturbed during rotation and mixed with clarified water, thereby prolonging the sedimentation time, directly leading to a decrease in the output of treated water and affecting economic benefits. Utility Model Content

[0005] In order to solve the above-mentioned problems, the utility model provides a boiler wastewater recovery sedimentation tank.

[0006] The utility model is realized through the following technical solutions:

[0007] A boiler wastewater recovery sedimentation tank comprises a sedimentation tank body and a water inlet and a water outlet opened on the upper part of one side thereof, tracks are arranged on the left and right sides of the upper part of the sedimentation tank body, a crane is supported on the tracks, and a cleaning component is arranged at the lower part of the crane which can vertically and quickly lift a scraper to clean the sludge layer.

[0008] Further optionally, the cleaning component includes a telescopic rod vertically fixed to the lower part of the crane, the telescopic rod extending downwardly and connected and fixed to the scraper, a slide rail is provided on the upper part of the scraper, a slider is slidably connected to the slide rail, the upper part of the slider is hinged and fixed to the lower end of the scissor-type cross arm, screw nuts are hinged and fixed on both sides of the upper end of the scissor-type cross arm, the corresponding screw nuts are slidably connected to the screw threads, and the corresponding screw ends are driven and connected to a driving motor.

[0009] Further optionally, the telescopic rod is provided by a plurality of sleeve-connected metal pipes.

[0010] Further optionally, the drive motor is connected and fixed to the bottom of the crane through a fixed bracket, and the output shafts on both sides of the drive motor are respectively connected to the corresponding lead screw drives.

[0011] Further optionally, support blocks that support and rotate with the lead screw are provided at both ends, and the support blocks are connected and fixed to the crane bottom plate.

[0012] Further optionally, the bottom of the scraper is arranged to be inclined forward.

[0013] Compared with the existing technology, the beneficial effects of the utility model are as follows: the utility model fundamentally solves a series of problems caused by cleaning the settled sludge by installing a vertically lifting cleaning component at the bottom of the traveling crane, better solves the unstable factors caused by cleaning, shortens the sedimentation process of suspended matter in the sedimentation tank, reduces the disturbance of the sludge at the bottom of the sedimentation tank, and greatly improves the work efficiency in the cleaning process, reduces the labor intensity of the construction personnel, and reduces the production cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a three-dimensional schematic diagram of the structure of the utility model;

[0015] Figure 2 It is a schematic diagram of the main cross-section of the utility model;

[0016] In the figure: sedimentation tank body 1, water inlet 2, mud outlet 3, water outlet 4, crane 5, track 6, support block 7, screw nut 8, screw 9, scissor-type cross arm 10, telescopic rod 11, scraper 12, slide rail 13, slider 14, drive motor 15. DETAILED DESCRIPTION

[0017] The present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods:

[0018] like Figure 1 As shown, a boiler wastewater recovery sedimentation tank includes a sedimentation tank body 1 and a water inlet 2 and a water outlet 4 opened on the upper part of one side thereof. Tracks 6 are arranged on the left and right sides of the upper part of the sedimentation tank body 1. A crane 5 is supported on the track 6. A cleaning component capable of vertically and quickly lifting a scraper 12 to clean the sludge layer is arranged at the lower part of the crane 5.

[0019] like Figure 1 As shown, the cleaning component includes a telescopic rod 11 vertically fixed to the lower part of the traveling crane 5, the telescopic rod 11 extends downward and is connected and fixed to a scraper 12, a slide rail 13 is arranged on the upper part of the scraper 12, a slider 14 is slidably connected to the slide rail 13, the upper part of the slider 14 is hinged and fixed to the lower end of the scissor-type cross arm 10, and screw nuts 8 are hinged and fixed on both sides of the upper end of the scissor-type cross arm 10, the corresponding screw nuts 8 are threadedly slidably connected to the screw 9, and the corresponding end of the screw 9 is driven and connected to a driving motor 15.

[0020] like Figure 1As shown, the telescopic rod 11 is a multi-section sleeved metal pipe arrangement to prevent shaking during the scraping process and to provide reinforcement.

[0021] like Figure 1 , 2 As shown, the drive motor 15 is connected and fixed to the bottom of the crane 5 through a fixed bracket, and the output shafts on both sides of the drive motor 15 are respectively connected to the corresponding lead screws 9. The drive motor 15 adopts a double-output shaft worm gear reduction motor.

[0022] like Figure 1 As shown, support blocks 7 are provided at both ends of the lead screw 9 to support rotation therewith, and the support blocks 7 are connected and fixed to the bottom plate of the crane 5 .

[0023] like Figure 2 As shown, the bottom of the scraper 12 is tilted forward to better scrape the sludge layer.

[0024] The implementation principle of a boiler wastewater recovery sedimentation tank in the embodiment of the present application is:

[0025] During sedimentation, the sewage with suspended matter is discharged from the water inlet 2 into the sedimentation tank body 1. The suspended matter will naturally settle or coagulate and settle to form a sludge layer at the bottom of the sedimentation tank. When the sludge layer is formed, dredging is ready.

[0026] When desilting, first adjust the driving crane 5 to the tail end of the sedimentation tank body 1. After the adjustment is completed, start the driving motor 15. The driving motor 15 will drive the lead screws 9 on both sides to rotate synchronously while rotating. The lead screws 9 will drive the lead screw nuts 8 to move toward the middle. The lead screw nuts 8 move toward the middle to move the scissor-type cross arms 10. At the same time, the sliders 14 connected to the lower part of the scissor-type cross arms 10 also move toward the middle along the direction of the slide rails 13. When they move closer, the angle between the scissor-type cross arms 10 becomes smaller, so that the scissor-type cross arms 10 are extended to move the scraper 12 vertically downward, and then move to fit the bottom of the sedimentation tank body 1. At the same time, the telescopic rod 11 is extended to prevent the scraper 12 from shaking during work. At this time, start the driving crane 5 to move toward the mud outlet 3 Move slowly, open the valve of the mud outlet 3 while moving slowly, the scraper 12 will push the sludge at the bottom forward, and push it to fit the side wall of the sedimentation tank body 1 to ensure that all the sludge is pushed out. After the pushing is completed, start the drive motor 15 to reverse and make the angle of the scissor-type cross arm 10 larger to raise the scraper 12, and quickly lift the scraper 12 to the upper part of the liquid surface to prepare for the return reset. Since the scraper 12 is higher than the liquid surface, it will not disturb its precipitation during the return reset, and the newly precipitated sludge will not be disturbed by the scraper 12 and re-mixed with the clarified water, thereby ensuring its precipitation speed and completing a pollution removal work at the same time. The whole process is safe and reliable, and the dredging speed is fast. At the same time, it also prevents the disturbance of the sludge at the bottom of the sedimentation tank, which is convenient for promotion and use.

[0027] The above shows and describes the basic principles, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principles of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A boiler wastewater recovery sedimentation tank, comprising a sedimentation tank body (1) and a water inlet (2) and a water outlet (4) provided on the upper part of one side thereof, tracks (6) being provided on the left and right sides of the upper part of the sedimentation tank body (1), and a traveling crane (5) being supported and provided on the tracks (6), characterized in that: The lower part of the crane (5) is provided with a cleaning component capable of vertically and rapidly raising and lowering a scraper (12) to clean the sludge layer.

2. A boiler wastewater recovery sedimentation tank according to claim 1, characterized in that: The cleaning component comprises a telescopic rod (11) vertically fixed to the lower part of the traveling crane (5), the telescopic rod (11) extending downwardly to be connected and fixed to a scraper (12), a slide rail (13) being arranged on the upper part of the scraper (12), a slider (14) being slidably connected to the slide rail (13), the upper part of the slider (14) being hinged and fixed to the lower end of a scissor-type cross arm (10), a lead screw nut (8) being hinged and fixed to both sides of the upper end of the scissor-type cross arm (10), the lead screw nut (8) being threadedly slidably connected to a lead screw (9), and a drive motor (15) being drive-connected to the end of the lead screw (9).

3. A boiler wastewater recovery sedimentation tank according to claim 2, characterized in that: The telescopic rod (11) is made of a plurality of sleeve-connected metal pipes.

4. A boiler wastewater recovery sedimentation tank according to claim 2, characterized in that: The driving motor (15) is connected and fixed to the bottom of the crane (5) via a fixing bracket, and the output shafts on both sides of the driving motor (15) are respectively connected to the corresponding lead screws (9).

5. A boiler wastewater recovery sedimentation tank according to claim 2, characterized in that: Support blocks (7) are provided at both ends of the lead screw (9) and are supported and rotated therewith. The support blocks (7) are connected and fixed to the bottom plate of the crane (5).

6. A boiler wastewater recovery sedimentation tank according to claim 2, characterized in that: The bottom of the scraper (12) is arranged to be inclined forward.

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