Leachate collecting device suitable for waste incineration power plant

Abstract

The utility model relates to a leachate collecting device suitable for a waste incineration power plant, which comprises a collecting box body, and the top of the collecting box body is provided with a detachable collecting box top cover and a leachate inlet used for being connected with a leachate collecting hopper; a leachate down-flow pipeline is arranged at the bottom of the collecting box body, one end of the leachate down-flow pipeline is communicated with an inner cavity of the collecting box body, and the other end of the leachate down-flow pipeline is used for being connected with a leachate collecting pipe; internal filter screen holes are formed in an inlet of the leachate down-flow pipeline; the collecting box body is provided with a built-in collecting box, and the built-in collecting box is located below the percolate inlet; the built-in collection box is of a mesh structure and is used for first-stage filtration of impurities in the leachate; the internal filter screen holes are used for second-stage filtration of impurities in the leachate; and the filtered percolate flows into the percolate collecting pipe through the percolate downflow pipeline. The percolate collecting device has the advantages of being good in sealing performance, anti-seepage, anti-blocking and easy to clean, and can be widely applied to a percolate collecting system of an incinerator of a waste incineration power plant.

Description

Technical Field

[0001] The utility model belongs to the technical field of garbage incineration, and relates to a leachate collecting device suitable for a garbage incineration power plant. Background Art

[0002] As the core equipment in the waste incineration power generation industry, the stable operation of the waste incinerator is a necessary condition for maintaining long-term stable production. During the normal operation of the waste incinerator, the garbage in the rough pit is transferred to the feeding port of the incinerator by the garbage grab, and then the garbage moves downward through the feeding port to reach the incinerator pushing platform, and finally falls into the grate of the incinerator under the action of the pusher to complete the energy conversion. In this process, the garbage pushing platform must maintain sufficient reserves of garbage to be burned to ensure stable combustion in the incinerator, and the leachate in the wet garbage placed in the pushing platform permeates downward, and is transmitted to the leachate treatment system by the leachate collection main pipe after passing through the hopper and the leachate filtration and collection device. Traditional leachate filtration and collection devices generally have many disadvantages such as small capacity, poor sealing, odor overflow, and troublesome cleaning. Utility Model Content

[0003] In view of this, the purpose of the utility model is to solve the above-mentioned problems and provide a leachate collection device suitable for a waste incineration power plant, which has the advantages of good sealing, anti-seepage, anti-blocking and easy cleaning, and can be widely used in the leachate collection system of the incinerator of a waste incineration power plant.

[0004] In order to achieve the above object, the utility model provides the following technical solutions:

[0005] A leachate collection device suitable for a waste incineration power plant comprises a collecting box body, wherein a detachable collecting box top cover and a leachate inlet for connecting to a leachate collecting bucket are provided on the top of the collecting box body; a leachate downstream pipe is provided at the bottom of the collecting box body, one end of the leachate downstream pipe is connected to the inner cavity of the collecting box body, and the other end is used to connect to a leachate collecting pipe; an internal filter mesh hole is provided on the inlet of the leachate downstream pipe; the collecting box body is provided with a built-in collecting box, and the built-in collecting box is located below the leachate inlet; the built-in collecting box is a mesh structure, which is used for the first-stage filtration of impurities in the leachate; the internal filter mesh holes are used for the second-stage filtration of impurities in the leachate; the filtered leachate flows into the leachate collecting pipe through the leachate downstream pipe.

[0006] Furthermore, the collection box is arranged in an inclined manner, with an angle of 12.5° with the horizontal direction, and the horizontal position of the built-in collection box is higher than the horizontal position of the internal filter mesh hole. This design facilitates the natural downward flow of the leachate in the box by gravity, ensuring smooth drainage of the leachate.

[0007] Furthermore, a box overflow pipe is provided at the bottom of the collection box, the inlet of which is located between the built-in collection box and the internal filter mesh hole, and the inlet of the box overflow pipe is connected to the leachate downstream pipe. When the input amount of leachate in the box is too high, when the liquid level rises, the leachate with less impurities in the upper layer can flow to the leachate downstream pipe through the overflow pipe to avoid leakage of the leachate.

[0008] Furthermore, the mesh pore size of the built-in collection box is ≤2mm.

[0009] Furthermore, the internal filter mesh holes are circular filter holes with a diameter of 0.5 mm.

[0010] Furthermore, a clamping device is provided on the top of the collection box, and the clamping device includes a fixing seat, a clamping bar, and a clamping bolt;

[0011] The fixing seat is fixed on both sides of the collection box body, and a card slot is provided on the fixing seat. The clamping bar is arranged in the card slot and is pressed across the top cover of the collection box; the clamping bar is slidably matched with the card slot, and the clamping bolt is arranged on the fixing seat to press the clamping bar downward.

[0012] Furthermore, a support plate is provided on the outer side of the top cover of the collection box, and the support plate is fixedly connected to the collection box body; the fixing seat is fixedly provided on the support plate.

[0013] Furthermore, a connecting flange is provided at one end of the leachate downstream pipeline, and is connected to the leachate collecting pipe via the connecting flange.

[0014] Furthermore, a top cover handle is provided on the top cover of the collection box.

[0015] The beneficial effects of the utility model are:

[0016] 1. Excellent sealing performance: The pressing device of the top cover of the collection box can ensure the sealing of the top cover, effectively prevent the odor from overflowing, and improve the comfort of the working environment. At the same time, the design of the support plate enhances the structural stability of the entire device and prolongs its service life.

[0017] 2. Anti-leakage and anti-clogging: The inclined collection box and the reasonably designed filtration system reduce the possibility of clogging of the leachate and ensure the smooth flow of the leachate.

[0018] 3. Easy to clean and maintain: The design of built-in collection box and internal filter holes makes cleaning more convenient and quick, reducing maintenance costs.

[0019] 3. Improve leachate collection efficiency: The optimized structural design improves the leachate collection efficiency, which helps to improve the operating efficiency of the entire waste incineration power plant.

[0020] Other advantages, objectives and features of the present invention will be described in the following description to some extent, and will be apparent to those skilled in the art based on the following examination and research, or can be taught from the practice of the present invention to some extent. The objectives and other advantages of the present invention can be achieved and obtained through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model will be described in detail below in conjunction with the accompanying drawings, in which:

[0022] Figure 1 It is a schematic diagram of the overall structure of the leachate collecting device suitable for a waste incineration power plant in the utility model.

[0023] Figure 2 It is a side view of the leachate collecting device suitable for a waste incineration power plant in the utility model.

[0024] Figure 3 It is a schematic diagram of the clamping device in the utility model.

[0025] Figure 4 This is a schematic diagram of the clamping bolt installation.

[0026] Figure markings: 01-collection box body; 02-collection box top cover; 03-collection box bottom plate; 04-support plate; 05-top cover handle; 06-fixing seat; 07-clamping bar; 08-leachate inlet; 09-connecting flange; 10-box overflow pipe; 11-internal filter mesh hole; 12-built-in collection box; 13-leachate downstream pipe; 14-clamping bolt. DETAILED DESCRIPTION

[0027] The following describes the implementation of the present invention through specific examples. Those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. The present invention can also be implemented or applied through other different specific implementations, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that the illustrations provided in the following embodiments only illustrate the basic concept of the present invention in a schematic manner. The following embodiments and the features in the embodiments can be combined with each other without conflict.

[0028] Among them, the drawings are only used for illustrative explanations, and they only represent schematic diagrams rather than actual pictures, and should not be understood as limitations on the present utility model. In order to better illustrate the embodiments of the present utility model, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of the actual product. For those skilled in the art, it is understandable that some well-known structures and their descriptions in the drawings may be omitted.

[0029] The same or similar numbers in the drawings of the embodiments of the present invention correspond to the same or similar parts; in the description of the present invention, it should be understood that if the terms "upper", "lower", "left", "right", "front", "back" and the like indicate directions or positional relationships, they are based on the directions or positional relationships shown in the drawings, which are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes and cannot be understood as a limitation on the present invention. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0030] See also Figures 1 to 4 , which is a leachate collection device suitable for a waste incineration power plant, comprising a collection box 01, a top of which is provided with a detachable collection box top cover 02 and a leachate inlet 08 for connecting to a leachate collecting bucket; a leachate downstream pipe 13 is provided at the bottom of the collection box 01, one end of the leachate downstream pipe 13 is connected to the inner cavity of the collection box 01, and the other end is used to connect to a leachate collecting pipe; an internal filter mesh hole 11 is provided on the inlet of the leachate downstream pipe 13; the collection box 01 is provided with a built-in collection box 12, and the built-in collection box 12 is located below the leachate inlet 08; the built-in collection box 12 is a mesh structure with a pore size of ≤2mm, which is used for the first-stage filtration of impurities in the leachate; the internal filter mesh hole 11 is a circular filter hole with a diameter of 0.5mm, which is used for the second-stage filtration of impurities in the leachate; the filtered leachate flows into the leachate collecting pipe through the leachate downstream pipe 13.

[0031] Among them, the collection box 01 is arranged at an angle of 12.5° with the horizontal direction. The horizontal position of the built-in collection box 12 is higher than the horizontal position of the internal filter hole 11. This design facilitates the natural downward flow of the leachate in the box under gravity, ensuring smooth drainage of the leachate.

[0032] The bottom plate 03 of the collecting box is also provided with a box overflow pipe 10, the inlet of which is located between the built-in collecting box 12 and the internal filter mesh hole 11, and the inlet of the box overflow pipe 10 is connected with the leachate downstream pipe 13. When the input amount of leachate in the box is too high, when the liquid level rises, the leachate with less impurities in the upper layer can flow to the leachate downstream pipe 13 through the overflow pipe to avoid leakage of the leachate.

[0033] A clamping device is also provided on the top of the collection box 01, and the clamping device includes a fixing seat 06, a clamping bar 07, and a clamping bolt 14; a support plate 04 is provided on the outside of the collection box top cover 02, and the support plate 04 is fixedly connected to the collection box 01; the fixing seat 06 is fixedly welded to the support plate 04. The fixing seat 06 is located on both sides of the collection box 01, and a card slot is provided on the fixing seat 06. The two ends of the clamping bar 07 are placed in the card slots on both sides, and are pressed across the collection box top cover 02; the clamping bar 07 is slidably matched with the card slot, and the clamping bolt 14 is installed on the fixing seat 06, and the clamping bar 07 is pressed downward, so that the clamping bar 07 presses the collection box top cover 02 tightly and seals it.

[0034] The collecting box top cover 02 is provided with a top cover handle 05. A connecting flange 09 is provided at one end of the leachate downstream pipe 13, and is connected to the leachate collecting pipe through the connecting flange 09 and bolts, and a sealing film is connected at the connection, so that the whole system is well sealed to ensure zero odor leakage of the whole device.

[0035] The use process and its principle are as follows: the leachate in the wet garbage above the pushing platform of the incinerator is gathered after passing through the collecting bucket, enters the built-in collecting box 12 through the leachate inlet 08 for preliminary filtration, and then reaches the internal filter mesh hole 11 for secondary filtration, and finally reaches the rear end leachate collection main pipe through the leachate downstream pipeline 13, completing the whole process of leachate filtration and collection.

[0036] When the input amount of leachate in the box is too high, when the liquid level rises, the leachate with less impurities in the upper layer can flow to the leachate downstream pipe 13 through the overflow pipe to avoid leakage.

[0037] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution, which should be included in the scope of the claims of the utility model.

Claims

1. A leachate collection device suitable for a waste incineration power plant, characterized in that: It includes a collecting box body, the top of which is provided with a detachable collecting box top cover and a leachate inlet for connecting to a leachate collecting bucket; the bottom of the collecting box body is provided with a leachate downstream pipe, one end of which is connected to the inner cavity of the collecting box body, and the other end is used to connect to a leachate collecting pipe; the inlet of the leachate downstream pipe is provided with an internal filter mesh hole; the collecting box body is provided with a built-in collecting box, and the built-in collecting box is located below the leachate inlet; the built-in collecting box is a mesh structure, which is used for the first-stage filtration of impurities in the leachate; the internal filter mesh holes are used for the second-stage filtration of impurities in the leachate; the filtered leachate flows into the leachate collecting pipe through the leachate downstream pipe.

2. The leachate collection device suitable for a waste incineration power plant according to claim 1 is characterized in that: The collecting box is arranged in an inclined manner, with an angle of 12.5° with the horizontal direction, and the horizontal position of the built-in collecting box is higher than the horizontal position of the internal filter mesh holes.

3. The leachate collection device suitable for a waste incineration power plant according to claim 2 is characterized in that: A box overflow pipe is also provided at the bottom of the collection box, the inlet of the box overflow pipe is located between the built-in collection box and the internal filter mesh hole, and the inlet of the box overflow pipe is connected to the leachate downstream pipe.

4. The leachate collection device suitable for a waste incineration power plant according to claim 1 is characterized in that: The mesh pore size of the built-in collection box is ≤2mm.

5. The leachate collection device suitable for a waste incineration power plant according to claim 1 is characterized in that: The internal filter mesh holes are circular filter holes with a diameter of 0.5 mm.

6. The leachate collection device suitable for a waste incineration power plant according to claim 1 is characterized in that: The top of the collecting box is also provided with a clamping device, which includes a fixing seat, a clamping bar, and a clamping bolt; The fixing seat is fixed on both sides of the collection box body, and a card slot is provided on the fixing seat. The clamping bar is arranged in the card slot and is pressed across the top cover of the collection box; the clamping bar is slidably matched with the card slot, and the clamping bolt is arranged on the fixing seat to press the clamping bar downward.

7. The leachate collection device for a waste incineration power plant according to claim 6 is characterized in that: A support plate is provided on the outer side of the top cover of the collection box, and the support plate is fixedly connected to the collection box body; the fixing seat is fixedly arranged on the support plate.

8. The leachate collection device suitable for a waste incineration power plant according to claim 1 is characterized in that: A connecting flange is provided at one end of the leachate downstream pipeline, and is connected to the leachate collecting pipe through the connecting flange.

9. The leachate collection device for a waste incineration power plant according to claim 1, characterized in that: A top cover handle is provided on the top cover of the collection box.

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