A sludge scraping and suction device for sludge removal gantry cranes

Abstract

This utility model relates to the technical field of sludge removal gantry cranes, and in particular to a sludge scraping and suction device for sludge removal gantry cranes, which is simple in structure, lightweight and efficient; it includes: a first suction pipe, vertically fixed on the traveling gantry crane, which is the main sludge collection pipe; a second suction pipe, horizontally fixed to the bottom of the first suction pipe, and the center of the second suction pipe is connected to the end of the first suction pipe; a plurality of scraper blades, fixed at intervals along the length of the second suction pipe to the bottom of the second suction pipe, and the side of each scraper blade is a concave arc surface; a plurality of rubber plates, installed on the outside of each scraper blade; and a plurality of suction holes, spaced apart along the length of the second suction pipe at its bottom, with a plurality of suction holes arranged between every two adjacent scraper blades.

Description

Technical Field

[0001] This utility model relates to the technical field of mud discharge gantry cranes, and in particular to a mud scraping and suction device for mud discharge gantry cranes. Background Technology

[0002] Sludge removal gantry cranes are common specialized water treatment equipment in municipal water supply plants and water purification plants, mainly used to remove sludge deposited at the bottom of water tanks. The typical structure involves a bottom scraper pushing the sludge to the vicinity of a suction nozzle, from which it is then pumped away.

[0003] The existing sludge removal gantry crane's sludge scraping and suction device generally consists of a hanger, a suction nozzle, scrapers, and a suction pipe. The hanger is used to fix the scrapers and suction pipe, and the suction nozzle is installed on the suction pipe, located between the scrapers. This device has a complex structure and is heavy. Furthermore, because the scrapers are very high, sludge higher than the scrapers cannot be sucked up. Utility Model Content

[0004] To solve the above-mentioned technical problems, this utility model provides a sludge scraping and suction device for sludge discharge gantry cranes that is simple in structure, lightweight and efficient.

[0005] This utility model discloses a sludge scraping and suction device for a sludge removal gantry crane, comprising:

[0006] The first suction pipe is vertically fixed on the traveling gantry crane and serves as the main pipe for sludge discharge.

[0007] The second suction pipe is horizontally fixed to the bottom of the first suction pipe, and the center of the second suction pipe is connected to the end of the first suction pipe.

[0008] Multiple scraper blades are fixed at intervals at the bottom of the second suction pipe along the length of the second suction pipe, and the side of each scraper blade is a concave arc surface.

[0009] Multiple rubber plates are installed on the outside of each scraper blade;

[0010] Multiple suction holes are spaced apart at the bottom of the second suction pipe along its length, and multiple suction holes are arranged between every two adjacent scraper blades.

[0011] Furthermore, the sludge scraper includes two wall scrapers installed near the pool wall and multiple central scrapers located between the two wall scrapers. The wall scrapers have two symmetrical arc surfaces, and the central scrapers have four symmetrical arc surfaces.

[0012] Furthermore, the rubber sheet includes a side rubber sheet installed on the side of the pool wall scraper and a bottom rubber sheet installed at the bottom of the pool wall scraper and the center scraper.

[0013] Furthermore, the edges of the side panels and bottom panel transition smoothly.

[0014] Furthermore, the scraper blade is made of stainless steel or wear-resistant alloy, and the rubber plate is made of corrosion-resistant rubber.

[0015] Furthermore, the rubber sheet and the scraper blade are detachably connected by fasteners.

[0016] Furthermore, the diameter of the suction hole gradually increases from the centerline of the second suction pipe outwards;

[0017] Alternatively, the aperture size of the suction holes can be uniform.

[0018] Furthermore, the suction holes are all the same size, and the first suction pipe is symmetrically provided with inclined third suction pipes on both sides, with the two ends of the third suction pipes connected to the first suction pipe and the second suction pipe respectively.

[0019] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0020] 1. The sludge removal gantry is mounted on the upper part of the pool wall, and the sludge scraping and suction device is placed at the bottom of the pool. By dividing the suction pipe into a vertical first suction pipe and a horizontal second suction pipe, and by fixing the scraper plate to the bottom of the second suction pipe and connecting it directly to the lower part of the sludge removal gantry through the first suction pipe, the complex hanging structure in the prior art is reduced, making the overall structure simpler and reducing the total weight of the device.

[0021] 2. By using multiple suction holes between two adjacent scraper blades, and with the scraper blade having a concave arc surface, the volume of mud accumulation can be increased. At the same time, mud higher than the scraper blade is pushed down into the direction of the gantry's forward movement and squeezed towards the bottom of the suction hole, so that the sludge can be sucked away more evenly. This avoids the problem in the prior art where sludge higher than the scraper blade cannot be sucked away due to the scraper blade being too high, thus improving the sludge suction efficiency. Attached Figure Description

[0022] The present invention will be further described below with reference to the accompanying drawings.

[0023] Figure 1 This is a cross-sectional structural schematic diagram of Embodiment 1 of this utility model;

[0024] Figure 2 This is a top view of the structure of Embodiment 1 of this utility model;

[0025] Figure 3 This is a cross-sectional structural schematic diagram of Embodiment 2 of this utility model;

[0026] Figure 4 This is a top view of the structure of Embodiment 2 of this utility model;

[0027] The following labels are used in the attached diagram: 1. First suction pipe; 2. Second suction pipe; 3. Scraper; 31. Pool wall scraper; 32. Center scraper; 4. Rubber plate; 41. Side rubber plate; 42. Bottom rubber plate; 5. Suction hole; 6. Third suction pipe. Detailed Implementation

[0028] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model, but are not intended to limit its scope.

[0029] Example 1

[0030] like Figures 1 to 2 As shown, the present invention provides a sludge scraping and suction device for a sludge removal gantry crane, comprising:

[0031] The first suction pipe 1 is vertically fixed on the traveling gantry crane and serves as the main pipe for sludge discharge.

[0032] The second suction pipe 2 is horizontally fixed to the bottom of the first suction pipe 1, and the center of the second suction pipe 2 is connected to the end of the first suction pipe 1.

[0033] Multiple scraper blades 3 are fixed at intervals at the bottom of the second suction pipe 2 along the length of the second suction pipe 2, and the side of each scraper blade 3 is a concave arc surface.

[0034] Multiple rubber plates 4 are installed on the outside of each scraper blade 3;

[0035] Multiple suction holes 5 are spaced apart at the bottom of the second suction pipe 2 along its length, and multiple suction holes 5 are arranged between every two adjacent scraper blades 3.

[0036] The device is fixed to the sludge discharge gantry via the first suction pipe 1, and the scraper 3 is directly fixed to the bottom of the second suction pipe 2, saving materials and reducing weight. During operation, gantry tracks are installed on both sides of the tank. The sludge discharge gantry is mounted on the upper part of the sedimentation tank wall, and the scraper / suction device is placed at the bottom of the tank. The top of the first suction pipe 1 is connected to the sludge discharge pump. The gantry moves along the tracks on both sides of the tank, thereby moving the scraper / suction device. During the movement of the gantry, the scraper 3 slides on the bottom of the tank, using its concave arc surface to push the sludge on its surface in the forward direction. The mud is squeezed into the suction holes 5 on both sides to increase the volume of mud collection and promote the mud to be sucked into the second suction pipe 2. The softness of the rubber plate 4 allows it to better fit the inner wall of the pool, ensuring the mud scraping effect, while avoiding damage to the equipment caused by rigid contact between the mud scraper 3 and the pool wall. The mud squeezed to the bottom of the suction hole 5 enters the second suction pipe 2 through the suction of the mud discharge pump, and is then discharged through the first suction pipe 1. The multiple suction holes 5 distributed between the two mud scraper plates 3 ensure that the mud can be evenly sucked away, avoiding local accumulation and ensuring that the mud discharge process is efficient and smooth.

[0037] The sludge scraper 3 includes two wall scrapers 31 installed near the pool wall and multiple central scrapers 32 located between the two wall scrapers 31. The wall scrapers 31 have two symmetrical arc surfaces, and the central scrapers 32 have four symmetrical arc surfaces. The combined design of the wall scrapers 31 and the central scrapers 32 can cover the entire bottom of the pool, ensuring no dead corners for sludge scraping. Perpendicular to the travel direction of the sludge removal gantry, the wall scrapers 31 have suction holes 5 on only one side, while the central scrapers 32 have suction holes 5 on both sides. The two symmetrical arc surfaces of the wall scrapers 31 move the sludge towards the side with the suction holes 5, and the four symmetrical arc surfaces of the central scrapers 32 move the sludge towards the sides with the suction holes 5, minimizing sludge residue and ensuring a clean pool bottom.

[0038] The rubber sheet 4 includes a side rubber sheet 41 installed on the side of the pool wall scraper 31 and a bottom rubber sheet 42 installed at the bottom of the pool wall scraper 31 and the center scraper 32. The side rubber sheet 41 can fit tightly against the pool wall scraper 31 and the pool wall to ensure that the sludge near the pool wall is thoroughly scraped up. The bottom rubber sheet 42 can fit tightly against the pool wall scraper 31, the center scraper 32 and the pool bottom to ensure that the sludge at the bottom of the pool is efficiently scraped up. By only setting the side rubber sheet 41 and the bottom rubber sheet 42, and without other rubber sheets 4, the number of rubber sheets and the installation complexity are reduced, the area that needs to be scraped is covered to the maximum extent, and the manufacturing cost and maintenance cost are reduced.

[0039] The edges of the side rubber plate 41 and the bottom rubber plate 42 are smoothly transitioned; this design makes the sludge flow smoother and avoids sludge accumulation at the edges, thereby improving sludge discharge efficiency.

[0040] The scraper blade 3 is made of stainless steel or wear-resistant alloy, while the rubber plate 4 is made of corrosion-resistant rubber. Stainless steel and wear-resistant alloy have excellent corrosion resistance, resisting the erosion of chemicals in wastewater such as acids, alkalis, and salts, making them suitable for long-term use in wastewater treatment environments. Simultaneously, the stainless steel and wear-resistant alloy materials maintain the structural stability of the scraper blade 3, preventing deformation or damage due to long-term use and ensuring that the scraper blade 3 maintains good performance during operation. Furthermore, stainless steel and wear-resistant alloy are easy to process into the required shapes, meeting the design requirements of the scraper blade 3, and are easy to clean and maintain, reducing maintenance costs. Corrosion-resistant rubber resists the erosion of chemicals in wastewater such as acids, alkalis, and organic matter, making it suitable for long-term use in wastewater treatment environments and effectively extending the service life of the rubber plate 4. The combination of the stainless steel or wear-resistant alloy scraper blade and the corrosion-resistant rubber plate ensures efficient sludge scraping and discharge, improving equipment operating efficiency.

[0041] The rubber plate 4 and the scraper 3 are detachably connected by a fastener; the fastener is usually made of corrosion-resistant material to adapt to the sewage treatment environment; the design of the fastener ensures that the rubber plate 4 can be firmly installed on the scraper 3, preventing the rubber plate 4 from falling off during operation; as a vulnerable part, the rubber plate 4 may wear or age after a period of use, and the detachable connection allows for quick replacement, reducing equipment downtime.

[0042] The diameter of the suction hole 5 gradually increases from the centerline of the second suction pipe 2 towards both sides. The suction force is provided to the second suction pipe 2 through the first suction pipe 1, and the second suction pipe 2 is only connected to the end of the first suction pipe 1 through its center. The suction force of the suction hole 5 gradually decreases from the centerline to both sides because when the fluid flows in the pipe, the pressure loss is greater and the suction force is smaller the farther away from the suction pump. According to the principle of fluid mechanics, the relationship between the flow rate Q, the flow area A, and the flow velocity V is: Q = A × V. In the area with low suction force, the flow rate Q can be kept constant by increasing the flow area A. Therefore, by increasing the diameter of the suction hole 5 away from the centerline, the flow area is increased, thereby compensating for the decrease in suction force. This design makes the amount of sludge suctioned more uniform along the entire length of the second suction pipe 2, ensuring that the sludge can be removed efficiently.

[0043] In this first embodiment, the sludge scraping and suction device of this utility model for a sludge discharge gantry crane operates as follows: First, the drive device is started, and the gantry crane begins to move slowly along the track. The sludge discharge pump generates negative pressure, providing suction for the first suction pipe 1 and the second suction pipe 2. The scraper 3 fixed at the bottom of the second suction pipe 2 contacts the inner wall of the pool through the rubber plate 4. The pool wall scraper 31 is close to the pool wall, scraping up the sludge near the pool wall and squeezing it towards the suction hole 5. The central scraper 32 is located in the central area of ​​the pool bottom, scraping up the sludge at the bottom of the pool and squeezing it towards the suction hole 5. The suction holes 5, with the center line of the second suction pipe 2 as the center, gradually increase in diameter to both sides, providing uniform suction. The scraped sludge enters the second suction pipe 2 through the suction hole 5 and is finally discharged out of the pool through the first suction pipe 1.

[0044] Example 2

[0045] like Figures 3 to 4 As shown, the difference between this embodiment and Embodiment 1 is that the diameter of the suction holes 5 is the same, and the third suction pipes 6 are symmetrically arranged on both sides of the first suction pipe 1 at an inclined distribution. The two ends of the third suction pipes 6 are connected to the first suction pipe 1 and the second suction pipe 2, respectively. The third suction pipes 6 connect the first suction pipe 1 and the second suction pipe 2 to form an additional suction channel, which compensates for the suction force of the suction holes 5 gradually decreasing from the center position to both sides, making the suction effect more uniform. The symmetrical design of the third suction pipes 6 ensures the balanced distribution of suction force and avoids the phenomenon of uneven load during equipment operation, making the equipment run more smoothly.

[0046] In this second embodiment, the sludge scraping and suction device for a sludge discharge gantry of this utility model, when in operation, first starts the drive device, and the gantry begins to move slowly along the track. The sludge discharge pump generates negative pressure, providing suction for the first suction pipe 1, the second suction pipe 2, and the third suction pipe 6. The scraper 3 fixed at the bottom of the second suction pipe 2 contacts the inner wall of the pool through the rubber plate 4. The pool wall scraper 31 is close to the pool wall, scraping up the sludge near the pool wall and squeezing it towards the suction hole 5. The central scraper 32 is located in the central area of ​​the pool bottom, scraping up the sludge at the bottom of the pool and squeezing it towards the suction hole 5. The suction holes 5 with uniform apertures, together with the third suction pipe 6 and the first suction pipe 1, provide uniform suction. The scraped sludge enters the second suction pipe 2 through the suction hole 5, and finally collects through the first suction pipe 1 and the third suction pipe 6 and is discharged out of the pool through the first suction pipe 1.

[0047] The scraping and suction device for a mud discharge gantry crane of this utility model has common mechanical methods in terms of installation, connection or setting. Any method that can achieve its beneficial effect can be implemented.

[0048] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A device for sludge scraping and suction for a sludge removal gantry, characterized in that, include: The first suction pipe (1) is vertically fixed on the traveling gantry and serves as the main pipe for sludge discharge. The second suction pipe (2) is horizontally fixed at the bottom of the first suction pipe (1), and the center of the second suction pipe (2) is connected to the end of the first suction pipe (1). Multiple scraper blades (3) are fixed at intervals at the bottom of the second suction pipe (2) along the length direction of the second suction pipe (2), and the side of each scraper blade (3) is a concave arc surface; Multiple rubber plates (4) are installed on the outside of each of the scraper blades (3); Multiple suction holes (5) are spaced apart at the bottom of the second suction pipe (2) along its length, and multiple suction holes (5) are arranged between every two adjacent scraper blades (3).

2. The apparatus for dredging according to claim 1, wherein The scraper (3) includes two wall scrapers (31) installed near the pool wall and a plurality of central scrapers (32) located between the two wall scrapers (31). The wall scrapers (31) have two symmetrical arc surfaces and the central scrapers (32) have four symmetrical arc surfaces.

3. The apparatus for sludge scraping and sucking of the sludge barrow according to claim 2, wherein The rubber plate (4) includes a side rubber plate (41) installed on the side of the pool wall scraper (31) and a bottom rubber plate (42) installed on the bottom of the pool wall scraper (31) and the center scraper (32).

4. The apparatus for sludge scraping and sucking of the sludge barrow according to claim 3, wherein The edges of the side rubber plate (41) and the bottom rubber plate (42) are smoothly transitioned.

5. The sludge scraping and suction device for a sludge removal gantry as described in claim 1, characterized in that, The scraper blade (3) is made of stainless steel or wear-resistant alloy, and the rubber plate (4) is made of corrosion-resistant rubber.

6. The sludge scraping and suction device for a sludge discharge gantry as described in claim 1, characterized in that, The rubber plate (4) and the scraper (3) are detachably connected by a fastener.

7. The sludge scraping and suction device for a sludge removal gantry as described in any one of claims 1-6, characterized in that, The diameter of the suction hole (5) gradually increases from the center of the second suction pipe (2) to both sides; Alternatively, the diameter of the suction holes (5) can be uniform.

8. The sludge scraping and suction device for a sludge removal gantry crane as described in any one of claims 1-6, characterized in that, The suction holes (5) have the same diameter, and the first suction pipe (1) is symmetrically provided with inclined third suction pipes (6) on both sides. The two ends of the third suction pipe (6) are respectively connected to the first suction pipe (1) and the second suction pipe (2).

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