Cantilever sieve plate with heat-resistant and wear-resistant grate bars

Abstract

The utility model belongs to the technical field of vibrating screen cantilevers, and particularly discloses a cantilever screen plate with heat-resistant and wear-resistant screen bars, which comprises a screen body, three connecting plates are arranged on the screen body, each connecting plate is in bolted connection with the screen body, each connecting plate is fixedly connected with an upper screen bar and a lower screen bar, each upper screen bar is welded with a screen bar, and each lower screen bar is welded with a heat-resistant and wear-resistant screen bar. The sieve bars are made of alloy materials and comprise 5%-7% of carbon, 2%-2.5% of tungsten, 1%-1.5% of molybdenum, 1%-1.5% of vanadium, 28%-30% of chromium, 1%-1.5% of manganese and the balance iron, the lower sieve bar and the sieve bars are wrapped with stainless steel layers, and the three connecting plates are arranged in a stepped mode. The material is made into a heat-resistant and wear-resistant material and is coated with the stainless steel layer to prevent corrosion, so that the damage rate of the screen bar in the screening process can be reduced, the maintenance frequency is reduced, the normal operation of screening equipment is effectively ensured, the process manufacturing method is simple, and the manufacturing and maintenance cost and the finished product purchasing cost are low.

Description

TECHNICAL FIELD

[0001] The utility model relates to cantilevered screen suspension arm technical field, specifically related to a cantilevered screen plate with heat and wear resistant screen bar. BACKGROUND

[0002] The cantilevered screen has the characteristics of high screening efficiency, simple equipment structure, light weight, compact plant space layout and the like, plays an important role in the sintering process production in the steel metallurgical industry, and the currently applied cantilevered screen screen plate uses various materials to produce screen bars, such as high-carbon steel and high-manganese steel. UTILITY MODEL CONTENT

[0003] The utility model discloses a cantilevered screen plate with heat and wear resistant screen bar to solve the problem of screen bar wear and tear, frequent replacement of screen plates, heavy maintenance workload, high use cost and low production efficiency.

[0004] To achieve the above-mentioned purpose, the utility model provides a basic scheme: a cantilevered screen plate with heat and wear resistant screen bar, comprising a screen body, three connecting plates are arranged on the screen body, an upper screen bar and a lower screen bar are fixedly connected to each connecting plate, a screen bar is welded to each upper screen bar, the material of the screen bar is alloy material, and the three connecting plates are arranged in a stepped manner.

[0005] The working principle of the utility model is that the connecting plate and the screen bar are welded together during manufacturing, and a rib plate is welded for reinforcement, then the alloy screen bar is stacked on the screen bar to form a heat and wear resistant layer by using a reverse deformation surfacing process, the rib plate is removed after the steel plate cools down to room temperature, and the entire screen body is finished and formed.

[0006] The utility model has the advantages that the screen bar is stacked and finished by using special alloy electrodes, has good heat and wear resistance, prolongs the service life, and adopts a reverse deformation surfacing process, which can meet the requirements of heat and wear resistance, erosion resistance and service life, and can prevent the screen bar from being twisted and deformed during surfacing, reduces the number of maintenance of the screening equipment, reduces the labor intensity of maintenance, effectively ensures the normal operation of the screening equipment, and has simple process manufacturing method, which reduces the manufacturing and maintenance cost and the cost of purchasing finished products.

[0007] In scheme two, which is a preferred scheme of the base scheme, the upper sieve bars and the lower sieve bars on the upper connecting plate have a width of 22mm-31mm and a gap of 12mm; the upper sieve bars and the lower sieve bars on the middle connecting plate have a width of 30mm-35mm, an upper gap of 25mm and a lower gap of 18mm; and the upper sieve bars and the lower sieve bars on the lower connecting plate have a width of 19mm-22mm, an upper gap of 8mm and a lower gap of 5mm. By setting different gaps and widths for each layer, the material can be effectively graded and screened, and materials of different particle sizes are allowed to pass through different sieve layers, so that fine material separation is realized. The gaps of each layer can be optimized according to the characteristics of the material to ensure that materials of various particle sizes can be effectively separated, thereby improving the efficiency of the entire screening process

[0008] In scheme three, which is a preferred scheme of scheme two, the sieve bars have the same width as the upper sieve bars of each connecting plate, and the height of the sieve bars is 10mm. When screening sticky and wet ores, the 10mm bar height can effectively reduce the clogging of the screen holes, and the screening efficiency can be improved and the clogging of the screen holes can be reduced.

[0009] In scheme four, which is a preferred scheme of the base scheme, the lower sieve bars and the sieve bars are both wrapped with a stainless steel layer. Stainless steel has high wear resistance and can maintain the integrity and durability of the surface under friction and wear conditions. Compared with other types of steel, stainless steel exhibits better corrosion resistance, which can significantly prolong the service life of the sieve bars and the sieve bars.

[0010] In scheme five, which is a preferred scheme of the base scheme, each connecting plate is bolted to the sieve body. The connecting plate and the sieve body are connected in a detachable manner. When the sieve bars or sieve bars on the connecting plate are damaged, the connecting plate with the sieve bars and sieve bars of the layer is removed, and a new structure is installed, reducing the cumbersome steps during replacement.

[0011] In scheme six, which is a preferred scheme of the base scheme, the sieve body is provided with a plurality of lifting lugs. After assembly, the entire sieve plate structure is installed on the cantilever screen by lifting the lifting lugs with a lifting sling. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 is a mounting schematic view of the cantilever sieve plate with heat-resistant and wear-resistant sieve bars of the utility model;

[0013] Figure 2 is a top view of the cantilever sieve plate installation of the utility model with heat-resistant and wear-resistant sieve bars;

[0014] Figure 3 is a front view of the cantilever sieve plate installation of the utility model with heat-resistant and wear-resistant sieve bars;

[0015] Figure 4The utility model relates to a kind of installation schematic diagram of connecting plate, upper sieve bar, lower sieve bar, sieve bar and stainless steel layer in cantilever sieve plate with heat-resistant wear-resistant sieve bar.

[0016] Figure 5 The utility model relates to a kind of front view of connecting plate, upper sieve bar, lower sieve bar, sieve bar and stainless steel layer in cantilever sieve plate with heat-resistant wear-resistant sieve bar. DETAILED DESCRIPTION

[0017] The utility model is further explained in detail as follows by specific implementation:

[0018] The reference signs in the drawing of specification include: 1.sieve body, 2.connecting plate, 3.upper sieve bar, 4.lower sieve bar, 5.sieve bar, 6.stainless steel layer, 7.lug.

[0019] EMBODIMENT

[0020] Embodiment is basically as shown in the following: Figure 1 To the following: Figure 5 The utility model relates to a kind of cantilever sieve plate with heat-resistant wear-resistant sieve bar, including sieve body 1, be equipped with three connecting plates 2 on sieve body 1, each connecting plate 2 is bolted with sieve body 1, each connecting plate 2 is fixed with upper sieve bar 3 and lower sieve bar 4, each upper sieve bar 3 is welded with sieve bar 5, and the material of sieve bar 5 is wear-resistant alloy material, and the material composition is as follows: carbon 5~7%, tungsten 2~2.5%, molybdenum 1~1.5%, vanadium 1~1.5%, chromium 28~30%, manganese 1~1.5%, and the balance is iron, lower sieve bar 4 and sieve bar 5 are wrapped with stainless steel layer 6, three connecting plates 2 are arranged in ladder type, the width of upper sieve bar 3 and lower sieve bar 4 on upper connecting plate 2 is 22mm~31mm, and the gap is 12mm;The width of upper sieve bar 3 and lower sieve bar 4 on middle connecting plate 2 is 30mm~35mm, and the upper gap is 25mm, and the lower gap is 18mm;The width of upper sieve bar 3 and lower sieve bar 4 on lower connecting plate 2 is 19mm~22mm, and the upper gap is 8mm, and the lower gap is 5mm, the width of sieve bar 5 and each layer connecting plate 2 upper sieve bar 3 is identical, and the height of sieve bar 5 is 10mm, and sieve body 1 is equipped with a plurality of lugs 7.

[0021] The implementation mode of the embodiment is:

[0022] When the heat-resistant and wear-resistant screen rod is made, first, a connecting plate 2 with the same width as the screen body 1 is welded with the upper screen rod 3 and the lower screen rod 4, and a special rib plate is welded for reinforcement, appropriate gap and width are designed according to the length and width of the screen body 1, then the reverse deformation surfacing process is adopted, the alloy material is surfaced on the upper screen rod 3 to form a heat-resistant and wear-resistant screen strip 5 with a thickness of 10 mm, then the upper screen rod 3, the lower screen rod 4 and the screen strip 5 are coated with a layer of stainless steel 6, after the connecting plate 2 is cooled to room temperature, the connecting plate 2 and the rib plate welding point are cut off, the rib plate is removed, then each layer of the connecting plate 2 is arranged in a stepped manner and is bolted with the screen body 1, finally, the whole screen plate structure is placed on the cantilever screen by using the lifting sling connecting lug, when the lower screen rod 4 or the screen strip 5 on the connecting plate 2 is damaged, the connecting plate 2 with the upper screen rod 3, the lower screen rod 4 and the screen strip 5 is removed, and then the new structure is installed.

[0023] The above is only the embodiment of the present application, and the specific structure and characteristics of the scheme and other common knowledge are not described in detail. It should be pointed out that for those skilled in the art, without departing from the structure of the present application, a number of modifications and improvements can be made, which should also be considered as the protection scope of the present application, and these will not affect the effect and practicality of the present application. The protection scope of the present application should be subject to the content of its claims, and the specific implementation mode and other records in the specification can be used to explain the content of the claims.

Claims

1. A cantilever screen plate with heat-resistant and wear-resistant screen bars, characterized in that: The invention comprises a screen body (1), wherein three connecting plates (2) are provided on the screen body (1), an upper screen rod (3) and a lower screen rod (4) are fixedly connected to each connecting plate (2), a screen bar (5) is welded to each upper screen rod (3), and the screen bar (5) is made of a wear-resistant alloy material. The three connecting plates (2) are arranged in a stepped manner, and each connecting plate (2) is bolted to the screen body (1). The screen body (1) is provided with a plurality of lifting ears (7).

2. The cantilever screen plate with heat-resistant and wear-resistant screen bars according to claim 1, characterized in that: The width of the upper sieve rod (3) and the lower sieve rod (4) on the upper connecting plate (2) is 22 mm to 31 mm, and the gap is 12 mm; the width of the upper sieve rod (3) and the lower sieve rod (4) on the middle connecting plate (2) is 30 mm to 35 mm, the upper gap is 25 mm, and the lower gap is 18 mm; the width of the upper sieve rod (3) and the lower sieve rod (4) on the lower connecting plate (2) is 19 mm to 22 mm, the upper gap is 8 mm, and the lower gap is 5 mm.

3. The cantilever screen plate with heat-resistant and wear-resistant screen bars according to claim 2, characterized in that: The screen bars (5) have the same width as the upper screen bars (3) of each layer of connecting plates (2), and the height of the screen bars (5) is 10 mm.

4. The cantilever screen plate with heat-resistant and wear-resistant screen bars according to claim 1, characterized in that: The lower screen rod (4) and the screen bars (5) are both wrapped with a stainless steel layer (6).

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