Microporous breathable wear-resistant flexible connecting piece and waste incineration discharging system

Abstract

The utility model relates to a microporous breathable wear-resistant flexible connecting piece and a waste incineration discharging system. The microporous breathable wear-resistant flexible connecting piece comprises an inner layer, a middle layer and an outer layer which are integrally pressed from inside to outside to form a sleeve shape. The inner layer is wear-resistant canvas, the middle layer is a microporous waterproof breathable film, and the outer layer is a PTFE coated cloth bag. The waste incineration discharging system comprises a discharging pipe arranged below a hopper of the activated carbon and lime material storage tank and a feeding pipe arranged on a weighing device, and the discharging pipe is connected with the feeding pipe through a microporous breathable wear-resistant soft connecting piece. The PTFE film-coated cloth bag, the microporous waterproof breathable film and the wear-resistant canvas of the flexible connecting piece are all of a porous structure, so that the flexible connecting piece has a sufficient breathable effect, can support rapid pressure release in the weighing bin when materials are discharged, effectively avoids metering misalignment caused by pressure building of a weighing system, and ensures accurate and reliable weighing information of the materials.

Description

Technical Field

[0001] The utility model belongs to the technical field of garbage incineration, and relates to a microporous breathable wear-resistant soft connector and a garbage incineration feeding system. Background Art

[0002] As an important practice form of "zero-waste city" in my country, the waste incineration power generation industry has achieved clean, efficient and low-carbon incineration under the joint promotion of national attention and industry efforts, and has enhanced the background of low-carbon, circular, green and high-quality development in urban and rural areas in my country. In order to control emission indicators and make the treated incineration flue gas reach the "Standard for Pollution Control of Domestic Waste Incineration" (GB18485-2014), environmental protection investment is an important part of the total investment of waste incineration power plant projects. Among them, environmental protection consumables lime and activated carbon are necessary materials for removing SO2 and dioxins from flue gas generated by waste incineration. Therefore, in the daily operation of waste incineration power plants, the stable and continuous investment of activated carbon and lime feeding systems is crucial.

[0003] In order to ensure accurate measurement of environmental consumables and avoid weighing disturbances, the storage tanks of lime and activated carbon in waste incineration power plants are connected to the lower weighing system with flexible connections. However, the soft connections of lime and activated carbon feeding systems in waste incineration power plants currently generally use single-layer cloth bags or ordinary canvas. Such soft connections have excellent air permeability and can effectively avoid pressure buildup in the weighing system and inaccurate weighing. However, its material characteristics are easy to break and the pore size is large, exposing obvious defects such as short service life, material perforation and escape during operation, and high risk of damage and leakage. Utility Model Content

[0004] In view of this, the purpose of the utility model is to solve the above-mentioned problems and provide a microporous breathable wear-resistant soft connector and a waste incineration feeding system.

[0005] In order to achieve the above object, the utility model provides the following technical solutions:

[0006] A microporous breathable wear-resistant soft connector comprises an inner layer, a middle layer and an outer layer which are pressed into one piece from inside to outside to form a sleeve; the inner layer is wear-resistant canvas, the middle layer is a microporous waterproof breathable membrane, and the outer layer is a PTFE coated cloth bag.

[0007] Furthermore, the pore size of the microporous waterproof breathable membrane is ≤0.01 mm, and the pores are smaller than the particle size of activated carbon and lime in the power plant, which can effectively prevent granular materials from escaping during operation and causing environmental pollution.

[0008] Furthermore, the wear-resistant canvas is woven from multiple strands of yarn, has a pore diameter of 0.2±0.05 mm, and comprises 80% polyester and 20% cotton by mass percentage.

[0009] Furthermore, the elongation of the PTFE coated cloth bag is ≥15%, the overall pore distribution of the material is uniform, and the pore diameter is ≤0.05mm.

[0010] A waste incineration feeding system comprises a feeding pipe arranged below a hopper of an activated carbon and lime material storage tank and a feeding pipe arranged on a weighing device, wherein the feeding pipe is connected to the feeding pipe via the microporous breathable wear-resistant soft connector.

[0011] Furthermore, two ends of the microporous breathable wear-resistant flexible connector are fixedly connected to the feed pipe and the feed pipe respectively through clamps.

[0012] The beneficial effects of the utility model are:

[0013] 1. The PTFE coated cloth bag, microporous waterproof breathable membrane, and wear-resistant canvas of the soft connector in the utility model are all porous structures with sufficient air permeability, which can support the rapid pressure release in the weighing bin when the material is discharged, effectively avoid the metering inaccuracy caused by the pressure of the weighing system, and ensure that the material weighing information is accurate and reliable. Its unique multi-layer microporous structure can take into account both air permeability and wear resistance, and can effectively solve the obvious defects of traditional soft connections, such as short service life, material perforation and escape during operation, and high risk of damage and leakage. It can be widely used in soft connections in activated carbon and lime discharge systems of waste incineration power plants.

[0014] 2. The pores of the middle-layer microporous waterproof and breathable membrane of the soft connector in the utility model are the smallest, with a pore size of ≤0.01mm, which is smaller than the particle size of activated carbon and lime in power plants, and can effectively prevent granular materials from escaping during operation and causing environmental pollution. The inner layer of wear-resistant canvas, with its excellent wear resistance, can effectively withstand the friction generated when the granular materials come into contact with the inner layer of the soft connector during the feeding process, avoiding damage caused by holes, material leakage, environmental pollution, and economic losses. The outer layer of PTFE coated cloth bag has good toughness, and can withstand the impact of instantaneous pressure fluctuations on the soft connector during the feeding of activated carbon and lime feeding systems for a long time, effectively avoiding damage and leakage.

[0015] 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

[0016] 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:

[0017] Figure 1It is a schematic structural diagram of the microporous breathable and wear-resistant soft connector of the utility model.

[0018] Figure 2 This is a connection diagram for the waste incineration feeding system.

[0019] Figure numerals: 1- hopper; 2- discharge pipe; 3- flexible connector; 4- feed pipe; 5- weighing device; 31- PTFE coated cloth bag; 32- wear-resistant canvas; 33- microporous waterproof breathable membrane. DETAILED DESCRIPTION

[0020] 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.

[0021] 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.

[0022] 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.

[0023] See also Figure 1 It is a microporous breathable wear-resistant soft connector, including an inner layer, a middle layer, and an outer layer that are pressed together from the inside to the outside to form a sleeve; the inner layer is a wear-resistant canvas 32, the middle layer is a microporous waterproof breathable membrane 33, and the outer layer is a PTFE coated cloth bag 31.

[0024] Among them, the pore size of the microporous waterproof breathable membrane 33 is ≤0.01mm, and the pore size is smaller than the particle size of the activated carbon and lime in the power plant, which can effectively prevent the escape of granular materials during operation and cause environmental pollution. The wear-resistant canvas 32 is woven with multiple strands, with a pore diameter of 0.2±0.05mm, and its composition by mass percentage is: 80% polyester and 20% cotton. The elongation of the PTFE coated bag 31 is ≥15%, and the overall pore distribution of the material is uniform, with a pore diameter of ≤0.05mm.

[0025] See also Figure 2 It is a waste incineration feeding system, including a feeding pipe 2 installed below an activated carbon and lime material storage tank hopper 1 and a feeding pipe 4 provided on a weighing device 5, and the feeding pipe 2 and the feeding pipe 4 are connected by the above-mentioned microporous breathable wear-resistant soft connector 3.

[0026] The two ends of the microporous breathable wear-resistant soft connector 3 are respectively fixedly connected to the feed pipe 2 and the feed pipe 4 through clamps.

[0027] When the waste incineration power plant equipment is put into operation, environmental protection materials: lime and activated carbon are put into use, and are fed downward from the storage tank hopper 1 through the feeding pipe 2, and reach the weighing device 5 after passing through the flexible connector 3. This process occurs frequently during the stable operation of the power plant. The flexible connector 3 in this embodiment takes into account both air permeability and wear resistance. Under the premise of ensuring the material weighing preparation, it can effectively avoid problems such as material perforation and escape, and flexible connection damage and leakage during operation.

[0028] 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 microporous breathable wear-resistant soft connector, characterized in that: It comprises an inner layer, a middle layer and an outer layer which are pressed into one piece from the inside to the outside to form a sleeve; the inner layer is wear-resistant canvas, the middle layer is a microporous waterproof breathable film, and the outer layer is a PTFE coated cloth bag.

2. The microporous breathable wear-resistant flexible connector according to claim 1, characterized in that: The pore size of the microporous waterproof breathable membrane is ≤0.01mm.

3. The microporous breathable wear-resistant flexible connector according to claim 1, characterized in that: The wear-resistant canvas is woven from multiple strands of yarn, and has a pore diameter of 0.2±0.05 mm.

4. The microporous breathable wear-resistant flexible connector according to claim 1, characterized in that: The elongation of the PTFE coated cloth bag is ≥15%, the overall pore distribution of the material is uniform, and the pore diameter is ≤0.05mm.

5. A waste incineration material feeding system, characterized in that: It comprises a feed pipe arranged below the hopper of the activated carbon and lime material storage tank and a feed pipe arranged on the weighing device, wherein the feed pipe is connected to the feed pipe through the microporous breathable and wear-resistant soft connector as described in any one of claims 1 to 4.

6. The waste incineration material feeding system according to claim 5, characterized in that: The two ends of the microporous breathable wear-resistant soft connector are respectively fixedly connected to the feed pipe and the feed pipe through clamps.

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