Vacuum roasting furnace and material conveying pipeline thereof

Abstract

The utility model relates to the technical field of material conveying, and provides a vacuum roasting furnace and a material conveying pipeline thereof, the material conveying pipeline comprises conveying pipes connected with each other, a pore plate (1) arranged between every two adjacent conveying pipes and a wear-resistant protection pad (4) arranged on the upstream side of the pore plate (1), the pore plate (1) is provided with a first flow limiting hole (2), and the wear-resistant protection pad (4) is arranged on the upstream side of the pore plate (1). And the wear-resistant protection pad (4) is attached to the pore plate (1) and is provided with a second flow limiting hole (5) aligned with the first flow limiting hole (2). According to the technical scheme, the wear-resistant protection pad can better protect the pore plate from being directly collided and worn by materials, the service life of the pore plate is prolonged, and the wear-resistant pore plate is low in cost and convenient to install and maintain.

Description

TECHNICAL FIELD

[0001] The present disclosure relates to the technical field of material conveying, in particular to a material conveying pipeline of a vacuum roaster, and to a vacuum roaster. BACKGROUND

[0002] With the continuous development of industrial production, material conveying systems have been widely used in many fields such as chemical industry, petroleum, natural gas and water treatment. In order to effectively control the flow of fluid, stabilize the system pressure and ensure the safe operation of equipment and pipelines, it is usually necessary to install a flow control device in the material conveying pipeline. As a common flow control element, the orifice restrictor has been widely used in practical engineering due to its simple structure, low manufacturing cost and wide application range.

[0003] The orifice restrictor usually controls the flow of fluid by setting an orifice with a specific size in the pipeline. When the fluid passes through the orifice, the cross-sectional area of the fluid decreases, the flow rate increases, and a pressure drop is formed, thereby achieving the effect of flow restriction. This method can effectively regulate the flow of fluid in the system, but it also causes certain energy loss. In addition, the design of the orifice restrictor needs to consider the influence of the properties of the fluid, the working pressure, the temperature and the size of the orifice on the flow restriction effect, so accurate design and optimization are required in practical application.

[0004] Since the orifice is usually made of metal material, when conveying materials with high friction such as granular materials, the orifice will inevitably be greatly worn, reducing the service life of the orifice. CONTENT OF THE INVENTION

[0005] One of the technical problems to be solved by the present disclosure is that the flow-restricting orifice in the material conveying pipeline is prone to wear.

[0006] To solve the above technical problems, the present disclosure provides a material conveying pipeline of a vacuum roaster, which comprises conveying pipes connected to each other, an orifice arranged between two adjacent conveying pipes, and a wear-resistant protective pad arranged on the upstream side of the orifice, wherein the orifice has a first flow-restricting orifice, and the wear-resistant protective pad is attached to the orifice and has a second flow-restricting orifice aligned with the first flow-restricting orifice.

[0007] In some embodiments, the outer diameter of the orifice is 180-200 mm, and the inner diameter of the first flow-restricting orifice is 20-30 mm.

[0008] In some embodiments, the ends of the two conveying pipes connected to each other are respectively provided with flanges, and the orifice is clamped between the flanges.

[0009] In some embodiments, the edge of the orifice is connected with a first handle part.

[0010] In some embodiments, the edge of the wear-resistant protective pad is connected with a second handle part aligned with the first handle part.

[0011] In some embodiments, the hole plate is made of stainless steel.

[0012] In some embodiments, the wear-resistant protective pad is made of rubber.

[0013] In some embodiments, the wear-resistant protective pad is made of one of fluororubber, silicone rubber, neoprene rubber, and polyurethane rubber.

[0014] In some embodiments, the wear-resistant protective pad is bonded to the hole plate.

[0015] In another aspect, the present disclosure provides a vacuum roaster, wherein the vacuum roaster comprises a furnace body and the material conveying pipeline of the above solution.

[0016] Through the above technical solution, the wear-resistant protective pad can better protect the hole plate from direct collision and wear of the material, prolong the service life of the hole plate, and has low cost, and is convenient to install and maintain. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure or the prior art, the drawings needed to be used in the embodiments or prior art description will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present disclosure, and other drawings can be obtained by those skilled in the art without creative labor.

[0018] Figure 1 is a structural schematic view of a hole plate and a first handle part disclosed by the embodiments of the present disclosure;

[0019] Figure 2 is a structural schematic view of a wear-resistant protective pad and a second handle part disclosed by the embodiments of the present disclosure.

[0020] Explanation of reference signs:

[0021] 1-hole plate, 2-first flow limiting hole, 3-first handle part, 4-wear-resistant protective pad, 5-second flow limiting hole, 6-second handle part. DETAILED DESCRIPTION

[0022] The embodiments of the present disclosure will be further described in detail below in combination with the drawings and embodiments. The detailed description of the following embodiments and the drawings are used to exemplarily illustrate the principles of the present disclosure, but cannot be used to limit the scope of the present disclosure, and the present disclosure can be implemented in many different forms, and is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

[0023] The present disclosure provides these embodiments to make the present disclosure thorough and complete, and to fully convey the scope of the present disclosure to those skilled in the art. It should be noted that: unless otherwise specified, the relative arrangement of components and steps, the components of materials, numerical expressions and numerical values set forth in these embodiments should be interpreted as merely exemplary, not as a limitation.

[0024] It should be noted that, in the description of the present disclosure, unless otherwise specified, the meaning of "a plurality of" is greater than or equal to two; the orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", "inner", "outer" and the like is only for the purpose of facilitating the description of the present disclosure and simplifying the description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore it cannot be understood as a limitation to the present disclosure. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0025] In addition, "first", "second", and similar words used in the present disclosure do not indicate any order, number or importance, but are only used to distinguish different parts. "Vertical" is not strictly vertical, but within the allowable range of error. "Parallel" is not strictly parallel, but within the allowable range of error. "Include" or "contain" and similar words mean that the elements before the word cover the elements listed after the word, and do not exclude the possibility of also covering other elements.

[0026] It should also be noted that, in the description of the present disclosure, unless otherwise specifically specified and limited, the terms "mount", "connect", "connection" should be interpreted broadly, for example, it can be a fixed connection, or a detachable connection, or an integral connection; it can be directly connected, or indirectly connected through an intermediate medium. For those skilled in the art, the specific meaning of the above terms in the present disclosure can be understood according to the specific circumstances. When it is described that a specific device is located between the first device and the second device, there can be an intermediate device between the specific device and the first device or the second device, or there can be no intermediate device.

[0027] All terms used in the present disclosure have the same meaning as understood by those skilled in the art to which the present disclosure belongs, unless otherwise specifically defined. It should also be understood that terms defined in general dictionaries should be interpreted to have meanings consistent with their meanings in the context of the relevant art, and should not be interpreted in an idealized or excessively formalized sense, unless specifically defined here.

[0028] Techniques, methods and equipment known to those skilled in the relevant art can not be discussed in detail, but in appropriate cases, the techniques, methods and equipment should be considered as part of the specification.

[0029] The present application provides a material conveying pipeline of a vacuum roasting furnace, which comprises conveying pipes connected with each other, a hole plate 1 arranged between two adjacent conveying pipes, and a wear-resistant protective pad 4 arranged on the upstream side of the hole plate 1, wherein the hole plate 1 is provided with a first flow-limiting hole 2, and the wear-resistant protective pad 4 is attached to the hole plate 1 and provided with a second flow-limiting hole 5 aligned with the first flow-limiting hole 2.

[0030] The material conveying pipeline is used for conveying material, such as solid particle material, for a vacuum roasting furnace.

[0031] The hole plate 1 can be installed between two adjacent conveying pipes, and the inner diameter of the first flow-limiting hole 2 is smaller than the inner diameter of the conveying pipe, which can allow the material to pass through and reduce the flow of the material. The hole plate 1 can replace the regulating valve to control the flow, and plays a flow-limiting role in the material conveying process, thereby reducing the cost.

[0032] The wear-resistant protective pad 4 is located on the upstream side of the hole plate 1 and attached to the hole plate 1, which can avoid the direct collision and friction of the flowing material with the surface of the hole plate 1, thereby protecting the hole plate 1.

[0033] In addition, the wear-resistant protective pad 4 is provided with the second flow-limiting hole 5, which is aligned with the first flow-limiting hole 2, so that the material can flow through the first flow-limiting hole 2 without being affected by the wear-resistant protective pad 4.

[0034] In the present application, the wear-resistant protective pad can better protect the hole plate from direct collision and wear of the material, prolong the service life of the hole plate, and has low cost, easy installation and maintenance.

[0035] In some embodiments, the outer diameter of the hole plate 1 is 180-200 mm, and the inner diameter of the first flow-limiting hole 2 is 20-30 mm. The outer diameter of the hole plate 1 corresponds to the outer diameter of the conveying pipe, i.e. the outer diameter of the hole plate 1 can be equal to or slightly larger than the outer diameter of the conveying pipe. The outer diameter of the hole plate 1 can be 180 mm, 185 mm, 190 mm, 195 mm, or 200 mm, and the inner diameter of the first flow-limiting hole 2 can be 20 mm, 22 mm, 24 mm, 26 mm, 28 mm, or 30 mm.

[0036] In some embodiments, the two ends of the two pipes are provided with flanges, respectively, and the orifice plate 1 is clamped between the flanges. The material conveying pipeline can include at least two pipes, and the two pipes are provided with flanges at the ends abutting each other, and the two flanges abut each other and are connected by bolts, nuts, etc. The orifice plate 1 and the wear-resistant protective pad 4 are arranged between the two flanges. When the orifice plate 1 and the wear-resistant protective pad 4 are installed, they are first inserted between the two flanges, and then the two flanges are fixedly connected by bolts and nuts. When disassembled, the bolts and nuts are first removed to separate the two flanges, and then the orifice plate 1 and the wear-resistant protective pad 4 are extracted.

[0037] In some embodiments, the edge of the orifice plate 1 is connected with a first handle part 3. As shown in the figure, the edge of the circular orifice plate 1 is connected with the first handle part 3, the orifice plate 1 is inserted between the ends of the two pipes, for example, between the flanges described above, and the first handle part 3 is located outside the pipes. The operator can hold the first handle part 3 to insert the orifice plate 1 between the flanges or extract the orifice plate 1 from the flanges. Figure 1

[0038] In some embodiments, the edge of the wear-resistant protective pad 4 is connected with a second handle part 6 aligned with the first handle part 3. The process of arranging the wear-resistant protective pad 4 on the orifice plate 1 can be as follows: a sheet for forming the wear-resistant protective pad 4 is attached to the orifice plate 1 and the first handle part 3, and the sheet is cut according to the shape of the orifice plate 1 and the first handle part 3 to form a corresponding shape, i.e., the wear-resistant protective pad 4 and the second handle part 6, including forming a second flow-limiting hole 5 corresponding to the first flow-limiting hole 2. Of course, in other embodiments, the wear-resistant protective pad 4 and the second handle part 6 can also be directly cut.

[0039] In some embodiments, the orifice plate 1 is made of stainless steel. The stainless steel orifice plate 1 is simple to manufacture, low in price, and low in use and promotion cost. It is resistant to high temperature and corrosion, and does not need special maintenance during use.

[0040] In some embodiments, the wear-resistant protective pad 4 is made of rubber. Rubber is relatively low in cost and can be replaced after wear. In addition, it has a certain elasticity and can buffer the impact force of the material.

[0041] Specifically, in some embodiments, the wear-resistant protective pad 4 is made of one of fluororubber, silicone rubber, neoprene rubber, and polyurethane rubber. Fluororubber, silicone rubber, neoprene rubber, and polyurethane rubber also have good wear resistance in a relatively high temperature environment, thereby prolonging the service life of the wear-resistant protective pad 4.

[0042] In some embodiments, the wear-resistant protective pad 4 is bonded to the orifice plate 1. The wear-resistant protective pad 4 can be bonded to the orifice plate 1 by glue, such as silicone glue, epoxy glue, ceramic glue, and polyurethane glue, which are high-temperature resistant.​

[0043] In another aspect, the present application provides a vacuum roaster, wherein the vacuum roaster comprises a furnace body and the material conveying pipeline of the vacuum roaster as described in the above aspect. The material conveying pipeline is connected to the furnace body and used to convey materials, such as catalyst particles to be roasted, to the furnace body for roasting the materials.

[0044] So far, the embodiments of the present application have been described in detail. In order to avoid obscuring the concept of the present application, some details known in the art are not described. Those skilled in the art can fully understand how to implement the technical solutions disclosed herein according to the above description.

[0045] Although some specific embodiments of the present application have been described in detail through examples, those skilled in the art should understand that the above examples are only for illustration, not for limiting the scope of the present application. Those skilled in the art should understand that the above embodiments can be modified or some technical features can be replaced equivalently without departing from the scope and spirit of the present application. In particular, as long as there is no structural conflict, the technical features mentioned in each embodiment can be combined in any way.

Claims

1. A material conveying line of a vacuum calcining furnace, characterized in that, The application relates to a material conveying pipeline comprising conveying pipes connected to each other, a hole plate (1) arranged between two adjacent conveying pipes, and a wear-resistant protective pad (4) arranged on the upstream side of the hole plate (1), wherein the hole plate (1) is provided with a first flow-limiting hole (2), and the wear-resistant protective pad (4) is attached to the hole plate (1) and is provided with a second flow-limiting hole (5) aligned with the first flow-limiting hole (2).

2. A material conveying line of a vacuum calcining furnace according to claim 1, characterized in that The outer diameter of the hole plate (1) is 180-200 mm, and the inner diameter of the first flow-limiting hole (2) is 20-30 mm.

3. A material conveying line of a vacuum calcining furnace according to claim 1, characterized in that, The end portions of the two conveying pipes connected to each other are respectively provided with flanges, and the hole plate (1) is clamped between the flanges.

4. The material delivery line of a vacuum calcining furnace according to claim 1, characterized in that, A first handle portion (3) is connected to the edge of the hole plate (1).

5. A material delivery line for a vacuum calcining furnace according to claim 4, characterised in that, A second handle portion (6) aligned with the first handle portion (3) is connected to the edge of the wear-resistant protective pad (4).

6. A material delivery line for a vacuum calcining furnace according to claim 1, wherein The hole plate (1) is made of stainless steel.

7. A material delivery line for a vacuum kiln according to claim 1, characterized in that The wear-resistant protective pad (4) is made of rubber.

8. A material delivery line for a vacuum calcining furnace according to claim 7, characterised in that, The wear-resistant protective pad (4) is made of one of fluororubber, silicone rubber, chloroprene rubber and polyurethane rubber.

9. A material delivery line for a vacuum kiln according to claim 1, characterized in that The wear-resistant protective pad (4) is attached to the hole plate (1).

10. A vacuum calcining furnace, characterized by The application also relates to a material conveying pipeline comprising a furnace body and the vacuum roasting furnace according to any one of claims 1-9.

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