JP3175650U - Scum remover - Google Patents

Abstract

The present invention provides a scum removing device that actively prevents the propagation of microorganisms such as actinomycetes, sterilizes, and sterilizes, and that can be diverted to various water areas such as sedimentation ponds, ponds, and swamps.
A scum removing device includes a base ship that floats in a water area, a venturi pipe 50 mounted on the base ship, a pressurized water supply pipe that supplies pressurized water fed from a pressurized water supply source to an inlet 51 of the venturi pipe, A discharge pipe connected to the discharge port 52 of the venturi pipe 50, an intake pipe 70 that communicates the negative pressure portion 56 of the venturi pipe 50 with the atmosphere and sucks the negative pressure section 56, and a negative pressure portion 56 of the venturi pipe 50 And an introduction pipe 60 for introducing surface water of the water area and floating scum.
[Selection] Figure 3

Description

  The present invention relates to a scum removing device that can efficiently remove scum generated in a water area.

  Conventionally, as a scum removing device for removing scum generated in a settling basin of a sewage treatment plant, there are those described in Patent Documents 1 and 2, for example. The scum removing device described in Patent Document 1 is shown in FIG. In this figure, the scum removing device includes a scum outflow prevention plate 2 that blocks the surface layer of the water channel 1 over the entire width direction and blocks outflow of the floating scum S ′ to the downstream side, and an upstream of the scum outflow prevention plate 2. On the side, there is provided a scum crushing spray nozzle 3 for spraying a pressurized fluid spray on the floating scum S ′ and crushing the floating scum, a pipe skimmer 4, and a flight sludge scraper 5.

  According to the scum removing device having the above-described configuration, the floating scum S ′ is sprayed with pressure water from the scum crushing spray nozzle 3 in a state where the scum outflow prevention plate 2 blocks the outflow of the floating scum S ′ to the downstream side. Since the scum is crushed, degassed and settled by the pipe skimmer 4, the agglomerated scum, which was difficult to be swallowed by the pipe skimmer 4, can be easily broken up, and the scum stays in the final sedimentation basin for a long time. It is said that it is possible to prevent outbreaks and landscape deterioration. The return-side flight 5d of the flight-type sludge scraper 5 squeezes the scum S ′ that protrudes above the water surface, flows over the scum outflow prevention plate 2 to the downstream side, and floats on the water surface. The scum S that has been efficiently swallowed into the pipe skimmer 4 to discharge mud and settled to the bottom of the pond is scraped by the flight 5a of the flight-type sludge scraper 5 and scraped into the sludge pit 16.

  On the other hand, the scum removing device described in Patent Document 2 is shown in FIG. In this figure, the scum removing device includes a scum scraping mechanism 3 that scrapes the scum provided in the sedimentation basin 1, a wave generating mechanism 20 that generates waves that break the scum layer formed on the water surface into pieces, And a scum discharge mechanism 10.

  According to the scum removing device having the above-described configuration, the scum is broken by the waves generated by the wave generating mechanism 20 and can be efficiently removed by the scum discharging mechanism 10. Further, the return scraping plate 6 of the scum scraping mechanism 3 works to increase the efficiency of crushing the scum by the waves by scraping the scum protruding and floating on the water surface to the downstream wave generation mechanism 20, The scum settled on the bottom surface 1a is scraped by the scraping plate 6 of the scum scraping mechanism 3 and scraped up in the sludge reservoir 1b.

Japanese Patent Laid-Open No. 9-299941 JP-A-11-290846

  The scum removing devices described in Patent Documents 1 and 2 are installed as equipment dedicated to one settling basin, and are not intended for diversion to other water bodies such as other settling ponds, ponds, or swamps. . Therefore, the scum outflow prevention plate 2, the pipe skimmer 4, the flight-type sludge scraper 5, the scum scraping mechanism 3, the scum discharge mechanism 10 and the like have a length that extends over the entire width direction of the water channel 1 and the sedimentation basin 1. However, there is no problem even if diversion is impossible. However, the use area is not limited to one exclusive area, and it does not have the function of actively preventing the growth, sterilization, sterilization, etc. of microorganisms such as actinomycetes. Cannot be expected.

  The present invention has been made in view of such circumstances, and its purpose is to actively prevent, sterilize, and sterilize microorganisms such as actinomycetes, and to settling ponds, ponds, and swamps. It is providing the scum removal apparatus which can be diverted to various water areas.

  In order to achieve the above object, a scum removing device according to the present invention supplies a base ship that floats in a water area, a venturi pipe mounted on the base ship, and pressurized water pumped from a pressurized water supply source to an inlet of the venturi pipe. A pressurized water supply pipe, a discharge pipe connected to a discharge port of the venturi pipe, an intake pipe for communicating the negative pressure part of the venturi pipe with the atmosphere and sucking the negative pressure part, and a negative pressure part of the venturi pipe It is characterized by having an introduction pipe for introducing surface water in the water area and floating scum.

According to the scum removing device having the above-described configuration, the pressurized water supplied from the pressurized water supply source in a state where the carriage is levitated in the water area is supplied from the pressurized water supply pipe to the venturi pipe, and is squeezed by the venturi section in the venturi pipe. And the negative pressure part is generated by reducing the pressure immediately downstream of the venturi part. Therefore, air (air) is sucked into the negative pressure part through the intake pipe, and at the same time, surface water and floating scum are sucked through the introduction pipe.
The air sucked into the negative pressure part collides with the flow of pressurized water sprayed at a high speed from the venturi part and atomized in the negative pressure part, becomes fine bubbles, enters and flows down. Ionized water is generated by the Leonard effect generated thereby.
On the other hand, in surface water and floating scum in the water area sucked into the negative pressure part, the floating scum collides with pressurized water atomized at a high speed from the venturi part and atomized in the negative pressure part and is crushed into fine particles At the same time, it flows into the ionic water produced by the Leonard effect. Therefore, it becomes clear purified water that has been prevented from breeding, sterilizing, and sterilizing microorganisms such as actinomycetes and discharged from the discharge pipe.

  Further, if the scum removing device having the above-described configuration is a small trolley equipped with a small number of Venturi pipes, landing on the water area with the Venturi pipes mounted, lifting and loading on the loading platform of the vehicle It is easy to carry in the state. In addition, even a large trolley equipped with a large number of venturi pipes can be easily lifted from the water area and transported in the state of loading on a vehicle bed by removing the venturi pipe from the trolley or disassembling the trolley as appropriate. In addition, it is easy to land by going through a procedure such as mounting a large number of Venturi pipes after temporarily assembling the trolley in the water area to be used. Therefore, diversion to various water areas such as sedimentation ponds, ponds or swamps is possible.

  The scum removal device according to the present invention is proactively prevented from breeding, sterilizing and sterilizing microorganisms such as actinomycetes by ionic water generated by the Leonard effect, and can be diverted to various water areas. .

It is a side view which shows one Embodiment of the scum removal apparatus which concerns on this invention. It is a top view of FIG. It is an expanded sectional view of the principal part. It is explanatory drawing of a 1st prior art example. It is explanatory drawing of a 2nd prior art example.

Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings.
1 is a side view showing an embodiment of a scum removing device according to the present invention, FIG. 2 is a plan view of FIG. 1, and FIG. 3 is an enlarged cross-sectional view of a main part. In these drawings, the scum removing device 30 includes a carriage 40, a venturi pipe 50 mounted on the carriage 40, surface water on the water surface WL in the water area W, and floating scum S, which will be described later of the venturi pipe 50. A pair of pipes for raising and lowering the pressurized water supplied from the pressurized water supply source 80 according to the top and bottom of the water surface WL. A pressurized water supply pipe 82 that supplies the inlet 51 of the venturi pipe 50 via a ball tap 81 including a ball 81 a and a discharge pipe 83 that is connected to the discharge port 52 of the venturi pipe 50 are provided. In the present embodiment, the pressurized water supply source 80 is an existing high-rise water tank near the water area W. Of course, a high-pressure pump may be used instead of the high-rise water tank.

  The trolley 40 includes a metal frame 41 and four ball-shaped floats 42. The frame 41 includes a pair of left and right side members 43 extending in the front-rear direction (arrow X), and front and rear sides of the side members 43. A pair of left and right gate-shaped leg portions 44 erected with the lower ends of both sides fixed, and a portal-shaped first cross member 45 erected on the upper surface of each gate-shaped leg portion 44 so as to be separated from the front and rear; The four floats 42 are attached to the front and rear ends of each side member 43 via a float attachment member 47. Further, the lower end portions on both sides of the first and second cross members 45, 46 are fastened to the upper surface of the gate-shaped leg portion 44 by bolts 48.

  The venturi 50 has a venturi 53 formed between the inlet 51 and the discharge port 52. The venturi 50 has an upward opening 54 leading to the venturi 53, and a small venturi 55 is mounted inside the venturi 53. Has been. The small venturi 55 blocks the opening 54 and the inlet 51 so that the passage sectional area of the fluid from the inlet 51 toward the downstream area of the venturi 53 is further narrowed down to be smaller than the passage sectional area of the venturi 53. Yes.

  The introduction pipe 60 is a metal funnel-shaped, and includes a small diameter portion 61 at the lower end and a bowl-shaped introduction portion 62 that is connected to the upper end of the small diameter portion 61 and expands upward in a tapered shape. The diameter of the small portion 61 is set to be equal to the diameter of the upward opening 54 of the Venturi tube 50, and the lower end of the small diameter portion 61 is joined to the upper end of the opening 54 in an airtight manner by welding, thereby opening the opening. An introduction pipe 60 is fixed to the portion 54. Further, the lower ends on both sides of a metal-made bracket 63 are joined to the inner surface of the bowl-shaped introduction portion 62 by welding, and a horizontal hole 64 of the bracket 63 is provided with a through hole 64a.

The intake pipe 70 is made of metal, and is supported by the horizontal portion 45a of the first cross member 45 of the metal frame 41 so that the lower end of the intake pipe 70 faces the upward opening 54 of the venturi pipe 50. The upper end protrudes upward from the horizontal portion 45 a and is open to the atmosphere, and is assembled to the horizontal portion 64 of the portal bracket 63 in the introduction pipe 60 so as to be movable up and down. That is, the intake pipe 70 is provided with a male screw 71 on the outer periphery excluding the lower end portion and the vicinity thereof, and the upper end portion passes through the through hole 45b provided in the horizontal portion 45a of the first cross member 45 and is connected to the male screw 71. By sandwiching the horizontal portion 45a with a pair of upper and lower nuts 90 and 91 screwed together, the horizontal portion 45a is supported so as to be movable up and down. Further, the vicinity of the lower end portion of the male screw 71 passes through a through hole 64 a provided in the horizontal portion 64 of the bracket 63, and the horizontal portion 64 is sandwiched by a pair of upper and lower nuts 92 and 93 screwed into the male screw 71. Thus, the intake pipe 70 is assembled to the introduction pipe 60 so as to be movable up and down. As a result, the venturi pipe 50 is mounted on the carriage 40 via the bracket 63 of the introduction pipe 60, the intake pipe 70 and the first cross member 45.
The opening end of the small venturi 55 is opened downstream of the venturi pipe 50 from the lower end of the intake pipe 70 and the lower end of the introduction pipe 60. This prevents air from being introduced from the lower end of the intake pipe 70 due to the water flow (water pressure) from the small venturi 55, or prevents water from flowing backward from the small diameter portion 61 of the introduction pipe 60, and the intake air. Air is drawn from the pipe 70 and surface water is introduced from the introduction pipe 60.

  The intake pipe 70 shown in FIG. 3 is lifted by lowering the nuts 91 and 93 by an amount corresponding to the amount of the lift, and then the nut 91 abuts the lower surface of the horizontal portion 45a of the first cross member 45 and the nut 93 is gate-shaped. The intake pipe 70 is pulled up to a level that contacts the lower surface of the horizontal portion 64 of the bracket 63, and this state is maintained, the nuts 90 and 92 are lowered, and the horizontal portion 45a is sandwiched between the nuts 90 and 91, and This can be executed by sandwiching the horizontal portion 64 with the nuts 92 and 93. Further, the lowering of the intake pipe 70 shown in FIG. 3 raises the nuts 90 and 92 by the amount corresponding to the lowering amount, so that the nut 90 contacts the upper surface of the horizontal portion 45a and the nut 92 contacts the upper surface of the horizontal portion 64. The intake pipe 70 is dropped to a level where it comes into contact, and this state is maintained, the nuts 91 and 93 are raised, the horizontal portions 45a are clamped by the nuts 90 and 91, and the horizontal portions 64 are clamped by the nuts 92 and 93. Can be done by doing.

  An assembly in which the horizontal portion 45a is clamped by two nuts 90 and 91 screwed to the male screw 71 of the intake pipe 70 shown in FIG. 3, and the horizontal portion 64 is clamped by the other two nuts 92 and 93. The state is a stage before the lower ends on both sides of the first cross member 45 are fastened to the upper surface of the gate-shaped leg portion 44 with bolts 48, and the lower end portion of the intake pipe 70 and the through hole 64 a provided in the horizontal portion 64 of the bracket 63. The vicinity is inserted from above, and a nut 93 is screwed onto the male screw 71 below the horizontal portion 64, and a nut 92 is screwed onto the male screw 71 above the horizontal portion 64. The nut 91 is screwed. Next, a portion above the nut 91 already screwed in the intake pipe 70 is inserted from below into the notch 45b provided in the horizontal portion 45a of the first cross member 45, and from the horizontal portion 45a. In addition, after the nut 90 is screwed onto the male screw 71 protruding upward, the lower ends on both sides of the first cross member 45 are fastened to the upper surface of the portal leg portion 44 with bolts 48.

  The scum removing device 1 having the above-described configuration is loaded on a loading platform of a vehicle such as a light truck, transported to a water area W such as a sedimentation basin, pond, or swamp and landed on a water surface WL. In the trolley 40, the side members 43 maintain a substantially horizontal posture under the water surface WL by the buoyancy of the four floats 42, and as shown in FIG. Float in a state of being positioned slightly below WL. At the same time, the ball 81a of the ball tap 81 rises from the position of the solid line to the position of the two-dot chain line by buoyancy, and opens the ball tap 81.

  Pressurized water pumped from an existing pressurized water supply source (high water tank) 80 near the water area W flows into the inlet 51 of the Venturi pipe 50 via the pressurized water supply pipe 82 and the open ball tap 81, and enters the Venturi pipe 50. It is squeezed by the venturi section 53 and the small venturi 55 and ejected toward the discharge port 52 at a high speed, and the negative pressure section 56 (see FIG. 3) is generated by reducing the pressure immediately downstream of the small venturi 55. As a result, air (air) is sucked into the negative pressure part 56 through the intake pipe 70, and at the same time, surface layer water near the water surface WL and floating scum S such as algae and moss are sucked through the introduction pipe 60. It should be noted that by adjusting the amount of entry of the lower end of the intake pipe 70 facing the opening 54 of the venturi pipe 50 by raising and lowering the intake pipe 70 by the above-described operation, mixing of the atmosphere sucked into the negative pressure part 56 and the floating scum S Can be set to a suitable ratio.

  The air sucked into the negative pressure part 56 collides with the flow of pressurized water sprayed from the small venturi 55 at a high speed and atomized in the negative pressure part, becomes fine bubbles, enters and flows down. Ionized water is generated by the Leonard effect generated thereby. On the other hand, the surface water of the water area sucked into the negative pressure part 56 and the floating scum S including algae and moss collide with the pressurized water atomized by the negative pressure part 56 from the small venturi 55 at high speed. While being crushed into fine particles, it is mixed into the ionic water generated by the Leonard effect and flows down. Therefore, it becomes clear purified water in which microorganisms such as actinomycetes are prevented from breeding, sterilized and sterilized, and is returned to the water area W from the discharge pipe 83 through a discharge tank (not shown).

  The scum removing device 30 according to the present invention is a venturi as long as it is a small trolley 40 having one venturi tube 50 or a small trolley 40 having several venturi tubes 50 as in the above embodiment. It is easy to land on the water area W with the pipe 50 mounted, and to lift and transport it in a state of being loaded on the loading platform of the vehicle. Furthermore, even for a large trolley 40 equipped with a large number of venturi pipes 50, the venturi pipe 50 can be removed from the trolley 40, or the trolley 40 can be disassembled appropriately to be lifted from the water area W and loaded onto a vehicle bed. It is easy to transport in a state, and it is easy to land by going through a procedure such as mounting a large number of Venturi pipes 50 after temporarily assembling the carrier 40 in the use water area W. Therefore, diversion to various water areas such as sedimentation ponds, ponds or swamps is possible.

  The present invention is a scum removal device that actively prevents the propagation of microorganisms such as actinomycetes, sterilizes, and sterilizes, and can be diverted to various water areas such as sedimentation ponds, ponds, and swamps.

30 Scum Remover 40 Cargo Ship 50 Venturi Pipe 51 Inlet 52 Discharge Port 56 Negative Pressure Part 60 Inlet Pipe 70 Intake Pipe W Water Area S Scum

Claims (1)

A base ship that floats in the water area, a venturi pipe mounted on the base ship, a pressurized water supply pipe that supplies pressurized water pumped from a pressurized water supply source to the inlet of the venturi pipe, and a discharge pipe connected to the discharge port of the venturi pipe And an intake pipe that communicates the negative pressure part of the venturi pipe with the atmosphere and sucks into the negative pressure part, and an introduction pipe that introduces surface water and floating scum of the water area into the negative pressure part of the venturi pipe A scum removing device characterized by that.

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