Leachate discharging device

Abstract

The utility model discloses a percolate discharging device which comprises a storage pool, a discharging port and a discharging port are formed in the storage pool, the lower end of the discharging port is connected with a discharging pipe, a traveling crane is installed above the storage pool, a grab bucket is arranged on the traveling crane, and a liquid discharging mechanism is arranged on the inner bottom wall of the storage pool. The liquid discharging mechanism comprises a material bearing step arranged on the inner bottom wall of the storage pool, a plurality of step surfaces arranged on the material bearing step and liquid discharging grooves formed in the step surfaces, filtering grids are laid on the liquid discharging grooves, the lower end of each liquid discharging groove is connected with a first liquid inlet, and the lower end of each first liquid inlet penetrates through the bottom wall of the storage pool and is connected with a liquid outlet pipe. The percolate drying tank is novel in design and simple in structure, percolate can be well prevented from being accumulated at the bottom of the tank, the flowing-out stroke of the percolate is effectively reduced, the drying efficiency is improved, and the burning effect of fuel is well guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of power plant equipment technology, and in particular to a leachate removal device. Background Technology

[0002] Biomass power generation utilizes the biomass energy inherent in biomass and is a type of renewable energy power generation. It includes direct combustion of agricultural and forestry waste for power generation, gasification of agricultural and forestry waste for power generation, waste incineration for power generation, landfill gas power generation, and biogas power generation. Waste-to-energy power generation involves collecting various types of waste, sorting and processing them, and then incinerating them to generate electricity.

[0003] For biomass fuels or waste fuels, it is necessary to ensure that they are as dry as possible during incineration, as a high moisture content will increase the concentration of dioxins emitted.

[0004] Currently, biomass power generation requires storing biomass fuel in storage ponds. During storage, leachate accumulates at the bottom of the ponds. When the fuel is retrieved for combustion, leachate residue is inevitable, affecting the quality of combustion and emissions. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies where leachate easily accumulates, affecting fuel drying and thus combustion efficiency, and to propose a leachate removal device.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A leachate removal device includes a storage tank, which is provided with a discharge port and a discharge port. The lower end of the discharge port is connected to a discharge pipe. A crane is installed above the storage tank, and a grab bucket is provided on the crane. A drainage mechanism is provided on the bottom wall of the storage tank.

[0008] The drainage mechanism includes a material-bearing step set on the bottom wall of the storage tank, multiple stepped surfaces set on the material-bearing step, and a drainage trough opened on the stepped surfaces. A filter grid is laid on the drainage trough, and a first liquid inlet is connected to the lower end of the drainage trough. The lower end of the first liquid inlet penetrates the bottom wall of the storage tank and is connected to a liquid outlet pipe.

[0009] Preferably, the stepped surface is designed with an incline, and the drainage trough is designed on the lower side of the stepped surface.

[0010] Preferably, the inner bottom wall of the drainage tank is designed with an inclined surface, and the first inlet is designed at a lower position in the drainage tank.

[0011] Preferably, the width of the stepped surface is greater than the opening width of the grab bucket.

[0012] Preferably, a plurality of drain outlets are provided on one side wall of the storage tank, a filter grid is laid inside the drain outlets, and a collection pipe is provided outside the drain outlets.

[0013] More preferably, a connecting pipe is connected between the plurality of liquid collecting pipes, and a second liquid inlet is connected through the lowermost connecting pipe and the liquid outlet pipe.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1. In this utility model, the storage tank is divided into zones for management by a stepped drainage mechanism. The leachate is discharged in conjunction with the filter grid and drainage trough, which solves the problem of leachate accumulation at the bottom of the flat tank and reduces the water content of the fuel.

[0016] 2. In this utility model, by designing a filter grid and a drain outlet on the side wall of the storage pool, the leachate in the stacked fuel is removed in layers, thereby improving the leachate removal efficiency and the drying effect of the fuel.

[0017] This utility model features a novel design and simple structure, effectively preventing leachate accumulation at the bottom of the pool and reducing the outflow path of leachate, thereby improving drying efficiency and ensuring the combustion effect of the fuel. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the appearance structure of this utility model.

[0019] Figure 2 This is a schematic diagram of the back structure of this utility model.

[0020] Figure 3 This is a schematic diagram of the bottom structure of this utility model.

[0021] Figure 4 This is a schematic diagram of the drain port structure of this utility model.

[0022] Figure 5 This is a cross-sectional schematic diagram of the storage pool of this utility model.

[0023] Figure 6 This is a schematic diagram of the liquid discharge mechanism of this utility model.

[0024] Figure 7 This is a schematic diagram of the drainage tank structure of this utility model.

[0025] In the diagram: storage tank 1, unloading port 11, discharge port 12, discharge pipe 13, crane 2, grab bucket 21, drain port 3, filter grid 4, collection pipe 5, connecting pipe 51, draining mechanism 6, material receiving step 61, step surface 62, drain trough 63, discharge pipe 7, first inlet 71, second inlet 72. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0027] Reference Figure 1-7 A leachate removal device includes a storage tank 1, which has a discharge port 11 and a discharge port 12. The lower end of the discharge port 12 is connected to a discharge pipe 13. A traveling crane 2 is installed above the storage tank 1, and a grab bucket 21 is installed on the traveling crane 2. A drainage mechanism 6 is installed on the bottom wall of the storage tank 1. A dump truck carrying incinerated waste or biomass unloads the material through the discharge port 11, unloading the material to be incinerated into the storage tank 1. When material needs to be taken for incineration, the grab bucket 21 is used to grab the material and, together with the traveling crane 2, delivers the fuel to the discharge port 12 for discharge. The material is then sent into the incineration boiler for incineration through the discharge pipe 13.

[0028] The drainage mechanism 6 includes a material-receiving step 61 set on the bottom wall of the storage pool 1, multiple stepped surfaces 62 set on the material-receiving step 61, and a drainage trough 63 opened on the stepped surfaces 62. A filter grid 4 is laid on the drainage trough 63, and a first inlet 71 is connected to the lower end of the drainage trough 63. The lower end of the first inlet 71 penetrates the bottom wall of the storage pool 1 and is connected to an outlet pipe 7. When combustible waste and wet biomass fuel are piled up, the moisture in them will seep out in the form of leachate. The design of multiple stepped surfaces 62 improves the drainage efficiency at the bottom of the fuel. The leachate falls into the drainage trough 63 after being filtered by the filter grid 4, and is sent out through the first inlet 71 and the outlet pipe 7. This greatly improves the leachate removal effect of the power plant fuel, helps the fuel to dry, and improves the combustion effect.

[0029] In this technical solution, such as Figure 1-7 As shown, the stepped surface 62 is designed with an incline, and the drainage trough 63 is designed on the lower side of the stepped surface 62. The incline design facilitates the flow of leachate, and the drainage trough 63, in conjunction with the drainage, improves the collection and removal efficiency of leachate.

[0030] In this technical solution, such as Figure 1-7 As shown, the inner bottom wall of the drainage tank 63 is designed with a slope, and the first inlet 71 is designed at a lower position in the drainage tank 63. This facilitates the collection of leachate, reduces leachate residue, and also facilitates the cleaning and maintenance of the drainage tank 63.

[0031] In this technical solution, such as Figure 1-7 As shown, the width of the stepped surface 62 is greater than the opening width of the grab bucket 21. This facilitates the grab bucket 21's gripping and prevents the stepped surface 62 from being too narrow and interfering with the grab bucket 21's gripping of fuel.

[0032] In this technical solution, such as Figure 1-5 As shown, multiple drainage ports 3 are provided on one side wall of the storage tank 1. A filter grid 4 is laid inside the drainage port 3, and a collection pipe 5 is provided outside the drainage port 3. Through the drainage ports 3 and filter grid 4 designed on the isolation wall of the storage tank 1, the leachate can be discharged from the side where the wet biomass fuel is accumulated, reducing the distance for leachate discharge, improving the leachate discharge effect, and improving the drying efficiency.

[0033] In this technical solution, such as Figure 1-5 As shown, multiple collection pipes 5 are connected by a connecting pipe 51, and the lowest connecting pipe 51 is connected to the outlet pipe 7 by a second inlet 72. This facilitates the discharge and treatment of leachate and ensures the environmental friendliness of the treatment of leachate from waste and wet biomass fuel.

[0034] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A leachate removal device comprising a storage tank (1), characterized in that, The storage pool (1) is provided with a discharge port (11) and a discharge port (12), the lower end of the discharge port (12) is connected with a discharge pipe (13), the upper portion of the storage pool (1) is installed with a travelling crane (2), the travelling crane (2) is provided with a grab bucket (21), the inner bottom wall of the storage pool (1) is provided with a liquid discharge mechanism (6); The liquid discharge mechanism (6) comprises a material receiving step (61) arranged on the inner bottom wall of the storage pool (1), a plurality of step surfaces (62) arranged on the material receiving step (61) and a liquid discharge groove (63) arranged on the step surface (62), the liquid discharge groove (63) is paved with a filter grid (4), the lower end of the liquid discharge groove (63) is connected with a first liquid inlet (71), the lower end of the first liquid inlet (71) penetrates the bottom wall of the storage pool (1) and is connected with a liquid outlet pipe (7).

2. A leachate exclusion device according to claim 1, characterised in that, The step surface (62) is designed as an inclined surface, and the liquid discharge groove (63) is designed on the lower side of the step surface (62).

3. A leachate exclusion device according to claim 1, characterised in that, The inner bottom wall of the liquid discharge groove (63) is designed as an inclined surface, and the first liquid inlet (71) is designed at a lower position in the liquid discharge groove (63).

4. A leachate exclusion device according to claim 1, wherein, The width of the step surface (62) is greater than the opening width of the grab bucket (21).

5. A leachate exclusion device according to claim 1, wherein, A plurality of liquid discharge ports (3) are arranged on the side wall of the storage pool (1), the inner side of the liquid discharge port (3) is paved with a filter grid (4), and the outer side of the liquid discharge port (3) is provided with a liquid collecting pipe (5).

6. A leachate exclusion device according to claim 5, wherein, A plurality of the liquid collecting pipes (5) are connected with a communication pipe (51), and the lowermost communication pipe (51) and the liquid outlet pipe (7) are connected with a second liquid inlet (72) in penetration.

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