Automatic desilting grit chamber

Abstract

The utility model discloses an automatic desilting grit chamber, and belongs to the technical field of sand discharge. The device comprises a grit chamber, a top plate, a water inlet, a water outlet, an electric heating device, a winch, a slurry pump, a rotating shaft, a motor, a triangular weir plate, a monitor and an insulating layer, the grit chamber is a circular-arc-shaped groove body, the outer surfaces of the two sides of the circular-arc-shaped groove body of the grit chamber and the outer surface of a top plate are provided with heat preservation layers, and the heat preservation layers are heat preservation layers wrapped with steel plates; one end of the slurry pump is connected with the winch through a cable, the other end of the slurry pump is connected with the motor through a chain guide rail, and the motor and the winch cooperatively control the free stroke of the slurry pump in the arc-shaped groove of the grit chamber; the system disclosed by the utility model solves the problem that a desilting system in a cold region is iced, the desilting tank system is simple in mechanical structure, real-time monitoring is realized, and automatic desilting is realized.

Description

Technical Field

[0001] The utility model belongs to the technical field of sand removal, in particular to an automatic silt removal and sand settling tank. Background Art

[0002] Grit chambers are mainly used to precipitate and remove suspended solid particles in reservoirs to improve the water quality of reservoirs and protect water sources. Reservoirs are important freshwater resource reserves and water supply sources, but due to land erosion, agricultural activities and urban emissions around reservoirs, suspended solids such as silt, pollutants and eutrophic substances often exist in reservoirs. By setting up grit chambers in reservoirs, these suspended solid particles can be caused to settle to the bottom of the pool, thereby improving the water quality of the reservoir.

[0003] The siltation problem of reservoirs seriously affects the water storage capacity and life of reservoirs. Sedimentation tanks can effectively prevent silt and suspended matter from entering the main reservoir, slow down the siltation rate, and regularly clean up sediments to maintain the volume and efficiency of the reservoir. Sedimentation tanks help protect the reservoir infrastructure, such as gates, flood discharge ports and reservoir bottom structures, and reduce corrosion and damage to facilities by sediments. In addition, regular cleaning and maintenance of sedimentation tanks can also help maintain the normal operation of the reservoir and extend its service life.

[0004] With the increasing awareness of environmental protection and sustainable development, the importance of grit chambers in reservoir management has become increasingly prominent. By effectively removing suspended solid particles, grit chambers can improve the ecological environment of reservoirs, maintain ecological balance, and promote sustainable utilization.

[0005] At present, the application prospects of grit chambers in reservoirs are broad. With the continuous advancement of science and technology, the design and performance of grit chambers will be further improved to improve treatment efficiency and energy conservation and emission reduction. At the same time, grit chambers will also be combined with other water treatment technologies to form a more complete water purification system to meet the needs of different reservoirs. In the context of increasingly scarce water resources and serious environmental pollution, the prospects of grit chambers will be brighter, making important contributions to reservoir management and water resource protection.

[0006] Although grit chambers are widely used in water treatment and reservoir treatment, the current grit chamber technology still has some defects and shortcomings: low grit efficiency: the sedimentation efficiency of the grit chamber depends on many factors, such as the design and size of the grit chamber, the inlet flow rate and the water quality. Therefore, some grit chambers may have low grit efficiency and corresponding measures need to be taken to improve the treatment efficiency; unreasonable design: unreasonable design of the grit chamber may lead to poor wastewater treatment effect, odor and noise, etc. For example, the inlet and outlet of the grit chamber are improperly positioned, or the tank body is too small, which will affect the grit effect and treatment efficiency; high energy consumption and cost: some traditional grit chambers have high energy consumption and cost, especially in the case of large flow, which requires a lot of electricity, increasing operating costs and environmental pressure.

[0007] In summary, the technology of grit chambers in reservoirs still has some defects and shortcomings. When facing cold climates and the temperature drops, the water inlet and the grit system of the grit chamber will freeze. Therefore, it is necessary to develop a new grit chamber technology that is more energy-saving, environmentally friendly and economical. Utility Model Content

[0008] In view of the deficiencies in the prior art, the utility model proposes an automatic silt removal and sand settling tank to solve the problems in the prior art.

[0009] The utility model provides an automatic desilting sand settling tank, which comprises a sand settling tank body, an electric heating device, a hoist, a mud pump, a rotating shaft, a motor, a triangular weir plate, a monitoring device, a heat-insulating layer and a chain guide rail.

[0010] The grit chamber body comprises a grit chamber, a water inlet, a water outlet and a top plate;

[0011] The water inlet and the water outlet are correspondingly arranged on both sides above the grit chamber, the water inlet is connected to one end of the grit chamber, and the water outlet is connected to the other end of the grit chamber;

[0012] The top plate is correspondingly arranged above the water inlet and the water outlet;

[0013] The grit chamber is provided with an arc-shaped trough body;

[0014] The hoist is arranged on the inner surface of the top plate;

[0015] The motor is hoisted on the lower surface of the top plate and is located 2m above the horizontal position of the axis of the grit chamber;

[0016] The electric heating device is arranged on the surface of the arc-shaped tank body of the grit chamber;

[0017] The mud pump is connected to one end of the arc-shaped slot of the chain guide rail close to the sand settling tank, the motor is connected to the other end of the chain guide rail, the winch is connected to the chain guide rail through a cable, and the rotating shaft is arranged on the chain guide rail close to one end of the motor; the motor drives the rotating shaft and the winch to cooperatively control the mud pump to move in the arc-shaped slot of the sand settling tank;

[0018] The water inlet and the water outlet are respectively provided with a water inlet fence and a water outlet fence; the railing spacing of the water inlet fence and the railing spacing of the water outlet fence are both 5-10cm;

[0019] The outer surface of the arc-shaped trough, the outer surface of the top plate, the side surface of the water inlet and the side surface of the water outlet, and the upper surface of the water inlet fence and the upper surface of the water outlet fence of the grit chamber are all provided with a heat-insulating layer, and the heat-insulating layer is an outer steel plate heat-insulating layer;

[0020] The rotating shaft is located 1m above the horizontal position of the axis of the grit chamber;

[0021] The triangular weir plate is arranged on the arc-shaped trough surface of the sand settling tank near the water outlet. By replacing different triangular weir plates, the weir plate opening is adjusted to control the water flow rate.

[0022] The monitoring device is hoisted on the lower surface of the top plate near the water outlet.

[0023] Compared with the prior art, the beneficial effects of the utility model are:

[0024] 1. The grit chamber proposed in the utility model can reduce the sedimentation and siltation caused by the water flow when the reservoir enters the reservoir, thereby reducing the resources wasted in dredging and the loss of fisheries; the grit chamber of the utility model is not affected by the weather during use, especially in severe cold weather, and can prevent the grit chamber and the system from freezing. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a front view of the automatic silt removal and sand settling tank of the utility model;

[0026] Figure 2 This is a top view of the automatic silt removal and sand settling tank of the utility model;

[0027] Figure 3 This is a side view of the water inlet of the utility model;

[0028] Figure 4 This is a side view of the water outlet of the utility model;

[0029] Figure 5 This is a schematic diagram of the triangular weir plate of the utility model;

[0030] Figure numerals: 1. grit chamber, 2. water inlet, 3. water outlet, 4. electric heating device, 5. winch, 6. mud pump, 7. rotating shaft, 8. motor, 9. triangular weir plate, 10. monitoring, 11. insulation layer, 12. top plate, 13. chain guide rail, 201. water inlet fence, 301. water outlet fence. DETAILED DESCRIPTION

[0031] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0032] In order to facilitate the understanding of the present invention, the present invention will be described more comprehensively below with reference to the relevant drawings.

[0033] The utility model proposes an automatic silting and sand settling tank, comprising a sand settling tank body, an electric heating device 4, a winch 5, a mud pump 6, a rotating shaft 7, a motor 8, a triangular weir plate 9, a monitoring 10, an insulation layer 11, a chain guide 13, a water inlet fence 201, and a water outlet fence 301. The sand settling tank body comprises a sand settling tank 1, a water inlet 2, a water outlet 3 and a top plate 12;

[0034] The water inlet 2 and the water outlet 3 are correspondingly arranged on both sides above the grit chamber 1, the water inlet 2 is connected to one end of the grit chamber 1, and the water outlet 3 is connected to the other end of the grit chamber 1;

[0035] The water inlet 2 and the water outlet 3 are respectively provided with a water inlet fence 201 and a water outlet fence 301; the railing spacing of the water inlet fence 201 and the railing spacing of the water outlet fence 301 are both 5-10 cm;

[0036] The top plate 12 is correspondingly arranged above the water inlet 2 and the water outlet 3;

[0037] The grit chamber 1 is provided with an arc-shaped trough body, and the outer surfaces of both sides of the arc-shaped trough body of the grit chamber 1, the outer surface of the top plate 12, the side surfaces of the water inlet 2 and the side surfaces of the water outlet 3, and the upper surfaces of the water inlet fence 201 and the upper surfaces of the water outlet fence 301 are all provided with an insulation layer 11, and the insulation layer 11 is an outer steel plate insulation layer;

[0038] The electric heating device 4 is arranged on the surface of the arc-shaped tank body of the grit chamber 1;

[0039] The hoist 5 is arranged on the inner surface of the top plate 12; the motor 8 is hoisted on the lower surface of the top plate 12, and is located 2m above the horizontal position of the axis of the sand settling tank 1;

[0040] The mud pump 6 is connected to one end of the arc-shaped slot of the chain guide 13 close to the sand settling tank 1, the motor 8 is connected to the other end of the chain guide 13, and the winch 5 is connected to the chain guide 13 through a cable; the rotating shaft 7 is arranged on the chain guide 13 close to one end of the motor 8; the motor 8 drives the rotating shaft 7 and the winch 5 to cooperatively control the mud pump 6 to move in the arc-shaped slot of the sand settling tank 1;

[0041] The rotating shaft 7 is located 1m above the horizontal position of the axis of the grit chamber 1;

[0042] The triangular weir plate 9 is arranged on the arc-shaped trough surface of the sand settling tank 1 near the water outlet 3. By replacing different triangular weir plates 9, the weir plate opening is adjusted to control the water flow rate;

[0043] The monitoring device 10 is hoisted on the lower surface of the top plate 12 near the water outlet 3;

[0044] The outer steel plate insulation layer of the insulation layer 11 includes two layers, wherein the inner steel plate is 5 mm thick and the outer steel plate is 3 mm thick, and the steel plate is anti-corrosive by hot-dip galvanizing as a whole.

[0045] The control process of the automatic silt removal and sand settling tank proposed in the utility model is as follows:

[0046] Water flows into the grit chamber 1 through the water inlet 2, and first contacts the water inlet fence 201. The railing spacing of the water inlet fence 201 is 5-10 cm, which can block large branches, twigs, stones, giant objects, etc. outside the grit chamber 1 to prevent them from entering the chamber. After the water fills up the grit chamber 1, the silt is deposited at the bottom of the chamber. The mud pump 6 first extracts the shallow silt, and then the mud pump 6 cannot contact the deposited silt through the monitoring 10 or visual observation. The motor 8 rotates forward to extend the mud pump 6 downward, and the winch 5 is used to lower the cable to move the mud pump 6 in the arc-shaped tank of the grit chamber 1.

[0047] The length of the chain guide depends on the radius of the grit chamber 1. The mud pump 6 can detect the bottom of the chamber and the horizontal position of the axis of the arc-shaped tank of the grit chamber 1.

[0048] The rotating shaft 7, the winch 5, and the motor 8 are coordinated and controlled to perform deep silt removal. The system is started once every half a day, and is monitored by the monitoring 10. If too much sand is deposited within half a day, power is supplied remotely and the system is automatically started.

[0049] The mud pump 6 is not allowed to be placed at the bottom of the pool. When the mud pump 6 is started, there is resistance and load, which will greatly reduce the life of the pump. When the pool is full of water, the triangular weir plate 9 stabilizes the water pressure and suppresses the water flow.

[0050] One of the main functions of the triangular weir plate 9 is to control the water level by adjusting the opening by replacing different weir plates. In this process, a certain water level needs to be maintained for subsequent processing steps, such as sedimentation and filtration. The triangular weir plate 9 can adjust the opening by replacing different weir plates as needed, so that the water level at the outlet can be effectively controlled; another important function is to control the flow of water by adjusting the opening. The water plant may need to process water of different flow rates at different times, and the triangular weir plate 9 can adjust the flow by replacing different weir plates and thus changing the opening to adapt to the water plant's processing capacity and needs. By introducing the triangular weir plate 9, a certain disturbance can be generated in the water flow, which helps prevent the accumulation of bottom sediments, reduce the occurrence of siltation, and ensure smooth water flow.

[0051] The technical features of the above-mentioned embodiments can be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above-mentioned embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered as within the scope of this specification. The above-mentioned embodiments only express several implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the patent of the utility model.

[0052] It should be pointed out that, for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. An automatic silt removal and sedimentation tank, characterized in that: It includes a sand settling tank body, an electric heating device, a winch, a rotating shaft, a motor, a mud pump, a chain guide rail and a thermal insulation layer; The grit chamber body comprises a grit chamber, a top plate, a water inlet and a water outlet, wherein the grit chamber is provided with an arc-shaped trough; the water inlet and the water outlet are correspondingly arranged on both sides above the grit chamber, the water inlet is connected with one end of the grit chamber, and the water outlet is connected with the other end of the grit chamber; the water inlet is provided with a water inlet fence, and the water outlet is provided with a water outlet fence; the top plate is correspondingly arranged above the water inlet and the water outlet; The electric heating device is arranged on the surface of the arc-shaped tank body of the grit chamber; The hoist is arranged on the inner surface of the top plate; The motor is hoisted on the lower surface of the top plate; The mud pump is connected to one end of the arc-shaped slot of the chain guide rail close to the sand settling tank, and the motor is connected to the other end of the chain guide rail; the winch is connected to the chain guide rail through a cable, and the rotating shaft is arranged on the chain guide rail close to one end of the motor, and the motor drives the rotating shaft and the winch to cooperatively control the mud pump to move in the arc-shaped slot of the sand settling tank; The outer surface of the arc-shaped trough body, the outer surface of the top plate, the side surface of the water inlet and the side surface of the water outlet, and the upper surface of the water inlet fence and the upper surface of the water outlet fence of the grit chamber are all provided with a heat preservation layer.

2. The automatic silt removal and sand settling tank according to claim 1 is characterized in that: The thermal insulation layer is an outer steel plate thermal insulation layer.

3. The automatic silt removal and sand settling tank according to claim 1 is characterized in that: The distance between the railings of the water inlet fence and the distance between the railings of the water outlet fence is 5-10 cm.

4. The automatic silt removal and sand settling tank according to claim 1 is characterized in that: The motor is located 2m above the horizontal position of the axis of the grit chamber.

5. The automatic silt removal and sand settling tank according to claim 1 is characterized in that: The rotating shaft is located 1m above the horizontal position of the axis of the grit chamber.

6. The automatic silt removal and sand settling tank according to claim 1, characterized in that: It also includes a triangular weir plate, which is arranged on the surface of the arc-shaped trough body of the sand settling tank close to the water outlet.

7. The automatic silt removal and sand settling tank according to claim 1, characterized in that: It also includes monitoring, which is hoisted on the lower surface of the top plate close to the water outlet.

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