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Ventilating layer used for high-temperature powder conveying equipment

A technology for conveying equipment and air-permeable layers, which is applied to conveyors, conveying bulk materials, transportation and packaging, etc. It can solve the problems of high frequency of parts damage, high cost of use, and poor operation reliability, and achieves simple structure, improved applicability, Inexpensive effect

Active Publication Date: 2012-07-04
东营市金德易化工有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It can be seen from Table 1 that the ceramic air-permeable layer has disadvantages: (1) The air permeability of the ceramic air-permeable layer is low; (2) The area of ​​the ceramic air-permeable layer is limited by the manufacturing material to be no more than 350mm×300mm, and the thickness is not less than 24mm, which is not suitable for large-sized chute Supporting use; (3) The maintenance cost of the ceramic air-permeable layer is high; (4) The air pressure required to maintain normal use is high, and the cost of use is high; (5) The joints of the ceramic air-permeable layer are poorly sealed, and leakage and blockage are prone to occur
[0011] It can be seen from Table 2 that there are technical shortcomings in the chemical fiber air permeable layer: (1) The poor temperature resistance of the chemical fiber air permeable layer is only 240°C, which is not suitable for use in high temperature environments; (2) The chemical fiber air permeable layer has low tensile strength
[0012] Therefore, at present, chain conveying is generally used for the transportation of high-temperature powder, which is the last choice for cement aluminum powder enterprises. Conveyors that carry materials such as conveyors, rollers, etc. have the following disadvantages: (1) complex mechanism, many accessories, and poor operation reliability; (2) high energy consumption compared with air conveying; (3) high failure rate , high frequency of accessory damage

Method used

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  • Ventilating layer used for high-temperature powder conveying equipment
  • Ventilating layer used for high-temperature powder conveying equipment
  • Ventilating layer used for high-temperature powder conveying equipment

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Embodiment 1: A gas-permeable layer used on high-temperature powder conveying equipment is prepared by the following process:

[0028] Twisting aramid 10s×4 copper wires with a diameter of 0.2mm×3 through a twisting machine to obtain a yarn with a twist of 3.2Te; the raw materials are then woven by a dobby loom to obtain a plain weave five-layer structure. layer, the pattern pattern of the weaving process of the air-permeable layer is as follows figure 1 Shown; The warp density of each layer of the breathable layer is 32 threads / 10cm, and the weft density is 32 threads / 10cm.

[0029] figure 1 The pattern pattern shown shows the law of the healds rising and falling in the opening movement. Each longitudinal row of the pattern pattern corresponds to a piece of heald frame, and the number of longitudinal rows is equal to the number of heald frames (or warp yarn cycles); each horizontal row corresponds to a weft yarn, The number of rows is equal to the weft cycle.

Embodiment 2

[0030] Embodiment 2: A gas-permeable layer used on high-temperature powder conveying equipment is prepared by the following process:

[0031] Twisting aramid 20s×6 copper wires with a diameter of 0.2mm×2 through a twisting machine to obtain a yarn with a twist of 3.3Te; the raw materials are then woven by a dobby loom to obtain a plain weave four-layer structure. layer, the pattern pattern of the weaving process of the air-permeable layer is as follows figure 2 Shown; The warp density of each layer of the breathable layer is 33 threads / 10cm, and the weft density is 32 threads / 10cm.

[0032] The performance indexes of the breathable layer obtained in Example 1 are shown in Table 3.

[0033] table 3

[0034]

[0035] The performance indexes of the air-permeable layer obtained in Example 2 are shown in Table 4.

[0036] Table 4

[0037]

[0038] Taking the high-temperature powder transportation in cement enterprises as an example, Table 5 shows the comparison of variou...

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Abstract

The invention relates to a ventilating layer used for high-temperature powder conveying equipment, which is characterized in that aramid fiber / copper wire yarns or aramid fiber yarns are used as raw materials and woven to form the ventilating layer with a multi-layer plain-line structure by a weaving machine. The ventilating layer has three to six layers of plain-line structures, the aramid fiber / copper wire yarns are formed by stranding 3 to 8D(density) aramid fibers and 1 to 3D copper wires, the fineness of the copper wires ranges from 0.1mm to 0.25mm, the twist degree of the aramid fiber yarns ranges from 11 to 16tex, the fineness of the aramid fiber yarns ranges from 10 to 21s, the warp density of each layer of plain-line structure of the ventilating layer ranges from 27 to 32 warps / 10cm while the weft density thereof ranges from 27 to 32 wefts / 10cm. By changing the temperature resistance of the ventilating layer, the resistant temperature of the ventilating layer can reach 550 DEG C, the working temperature thereof can be higher than 350 DEG C, and accordingly, applicability of the ventilating layer is improved, and the ventilating layer can be used for all high-temperature powder conveying fields. In addition, the ventilating layer is simple in structure, low in manufacturing cost and fault rate, fine in reliability and low in maintenance cost and has positive popularization significance.

Description

technical field [0001] The invention relates to an air-permeable layer, in particular to an air-permeable layer used on high-temperature powder conveying equipment, and belongs to the field of textiles. Background technique [0002] At present, there are two types of powder transportation: dry method and wet method. Among them, dry conveying is increasingly showing its superiority, and the air conveying tank in dry conveying is a reliable equipment matched with powder conveying. Compared with screw conveying, it is easy to process and manufacture, low in cost, and saves It has the advantages of less electricity, less maintenance and repair work, among which the air-permeable layer is particularly important as the core component of the air chute. [0003] After the air-permeable layer separates the upper and lower tank bodies of the air chute, the upper tank body is formed as a material chamber, and the lower tank body is used as an air chamber, and the air is used as the po...

Claims

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Application Information

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IPC IPC(8): B65G53/38D03D11/00D03D15/00D03D15/02D03D15/283D03D15/47D03D15/513D03D15/67
Inventor 吉梦琦
Owner 东营市金德易化工有限公司