Powder bin body straight barrel, powder bin body and concrete mixing plant

Abstract

The utility model relates to the field of stirring equipment, and discloses a powder bin body straight barrel, a powder bin body and a concrete stirring station. The powder bin body straight cylinder is a composite shell of a cylinder structure, the composite shell comprises a lining and an outer shell, the lining is used for forming a straight cylinder cavity of the powder bin body straight cylinder in a surrounding mode, the outer shell is arranged on the outer side of the lining in an attached mode, and the lining is made of non-magnetic materials or weak magnetic materials. The powder bin body comprises the powder bin body straight cylinder. The concrete mixing plant comprises the powder bin body and a powder bin frame used for supporting the powder bin body. Wherein the powder bin frame is a carbon steel bracket. The friction loss produced by the lining in the feeding and discharging processes of the materials cannot influence the magnetism of the concrete produced by the concrete mixing plant after the materials are mixed into the lining. In addition, the material of the shell for maintaining the structural strength of the straight barrel of the powder bin body has no magnetic requirement, that is, the selection range of the material of the shell is wider, and the material with the structural strength and low cost can be preferentially considered, so that the overall cost can be greatly reduced.

Description

Technical Field

[0001] The present application belongs to the field of mixing equipment, and specifically, relates to a powder silo body straight cylinder, a powder silo body and a concrete mixing station. Background Art

[0002] As the application of non-magnetic concrete in astronomical observation, precision measurement, geological exploration, national defense science and technology is becoming more and more extensive and mature, customers have begun to require that the concrete mixing plant itself be made of non-magnetic or weakly magnetic materials to avoid affecting the magnetism of the concrete produced by the concrete mixing plant.

[0003] The powder silo is an important large component in a concrete mixing plant that is mainly used to temporarily store materials. However, the powder silo will wear out during the feeding and unloading of materials. The wear is mainly caused by the impact of materials on the powder silo during the feeding process and the relative movement of sand and gravel and the silo during the unloading process, which causes the loss of the powder silo to mix into the material. When the powder silo is made of magnetic material, it will affect the magnetism of the concrete produced by the concrete mixing plant.

[0004] In the prior art, stainless steel with good wear resistance and no magnetism is generally used as the material of the powder bin body. However, the cost of stainless steel is relatively high and it is difficult to weld. Summary of the invention

[0005] The purpose of the present application is to provide a powder silo body straight cylinder, a powder silo body and a concrete mixing station to avoid the loss of the powder silo body affecting the magnetism of concrete and reduce the manufacturing cost.

[0006] To achieve the above-mentioned objectives, on the one hand, the present application provides a powder silo body straight cylinder, which is a composite shell with a cylindrical structure. The composite shell includes an inner lining and an outer shell. The inner lining is used to surround the straight cylindrical cavity forming the powder silo body straight cylinder, and the outer shell is fitted on the outer side of the inner lining. The inner lining is a non-magnetic material or a weakly magnetic material.

[0007] In some embodiments, the liner is a non-magnetic stainless steel liner.

[0008] In some embodiments, the outer shell is a carbon steel liner.

[0009] In some embodiments, the composite shell includes a plurality of mutually spliced ​​sheet structures, wherein the sheet structure includes an inner lining unit panel and an outer shell unit panel.

[0010] In some embodiments, both the lining unit plate and the shell unit plate include side flanges, and adjacent segment structures are fastened and connected by fasteners passing through the side flanges.

[0011] In some embodiments, a sealing strip is provided between the side flanges of adjacent sheet structures.

[0012] In some embodiments, the liner unit plate and the shell unit plate are both arc-shaped plates along the circumferential direction of the straight cylinder.

[0013] A second aspect of the present application protects a powder bin body, which includes the above-mentioned powder bin straight cylinder.

[0014] In some embodiments, the powder silo body includes a powder silo top installed on the top of the powder silo body straight cylinder and a powder silo cone installed on the bottom of the powder silo body straight cylinder; the shell of the powder silo top, the shell of the powder silo cone and the shell of the powder silo body straight cylinder are all composite shells.

[0015] The third aspect of the present application protects a concrete mixing station, which comprises:

[0016] The powder bin body mentioned above; and

[0017] A powder bin frame, used to support the powder bin body;

[0018] Among them, the powder bin rack is a carbon steel bracket.

[0019] In the technical solution of the present application, the shell of the powder silo body is designed as a composite shell including an inner lining and an outer shell, wherein the inner lining is a non-magnetic material or a weakly magnetic material that is in direct contact with the material, so that during the material feeding and unloading process, the friction loss of the inner lining can be avoided or reduced, and the influence on the magnetism of the concrete produced by the concrete mixing station after the material is mixed in. The material of the outer shell used to maintain the structural strength of the powder silo body has no magnetic requirements, that is, the material selection range of the outer shell is wider, and the structural strength and low-cost materials can be given priority, thereby greatly reducing the overall cost.

[0020] Other features and advantages of the embodiments of the present application will be described in detail in the subsequent detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The accompanying drawings are used to provide a further understanding of the embodiments of the present application and constitute a part of the specification. Together with the following specific embodiments, they are used to explain the embodiments of the present application, but do not constitute a limitation on the embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without creative work. In the drawings:

[0022] Figure 1 This is a schematic diagram of the structure of a straight powder bin body according to a specific embodiment of the present application;

[0023] Figure 2 It is a schematic structural diagram of a powder bin body according to a specific embodiment of the present application;

[0024] Figure 3 for Figure 2A cross-sectional view at position AA in FIG.

[0025] Figure 4 for Figure 2 Schematic diagram of the structure after the powder bin body and the powder bin frame are assembled.

[0026] Description of Reference Numerals

[0027] L Liner 112 Fastener

[0028] S housing 113 sealing strip

[0029] 100 Powder silo body 120 Powder silo body Silo top

[0030] 110 Powder bin body straight tube 130 Powder bin body cone

[0031] 111 slice structure 200 powder bin rack

[0032] 111a Side flange DETAILED DESCRIPTION

[0033] The specific implementation of the present application is described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation described here is only used to illustrate and explain the present application, and is not used to limit the present application.

[0034] The powder silo body cylinder 110, the powder silo body 100 and the concrete mixing station according to the present application are described below with reference to the accompanying drawings.

[0035] The present application discloses a novel powder bin body straight tube 110, such as Figure 2 and Figure 3 As shown, in a specific embodiment, the powder silo body straight cylinder 110 is a composite shell of a cylindrical structure, and the composite shell includes an inner lining L and an outer shell S. The inner lining L is used to surround the straight cylinder cavity of the powder silo body straight cylinder 110, and the outer shell S is fitted on the outer side of the inner lining L. The inner lining L is a non-magnetic material or a weakly magnetic material.

[0036] Specifically, see Figure 3The composite shell of the powder silo body cylinder 110 includes a composite shell of an inner liner L and an outer shell S. The inner liner L made of non-magnetic material or weakly magnetic material is used to directly contact the material, and the overall structural strength of the powder silo body cylinder 110 is ensured by the structural strength of the outer shell S. Obviously, the friction loss produced by the inner liner L during the material feeding and unloading process will not affect the magnetism of the concrete produced by the concrete mixing station after being mixed with the material. Compared with the prior art, in which the powder silo body cylinder 110 is designed as non-magnetic stainless steel as a whole, the material selection of the outer shell S of the present application has no magnetic requirements, that is, the material selection range of the outer shell S is wider, and structural strength and low-cost materials can be given priority, such as ordinary carbon steel with low cost and high strength. Therefore, the present application can avoid the loss of the powder silo body 100 affecting the magnetism of the concrete and reduce manufacturing costs.

[0037] In this embodiment, the lining L is a non-magnetic stainless steel lining plate.

[0038] Specifically, the material of the lining L is 0Cr18Ni9, a type of austenitic stainless steel. Although the non-magnetic 0Cr18Ni9 material is relatively expensive, it has excellent wear resistance and corrosion resistance, which is conducive to obtaining the optimal balance between the service life and manufacturing cost of the powder bin body straight tube 110.

[0039] Of course, those skilled in the art will appreciate that the selection of the lining L is not limited to the above-mentioned non-magnetic stainless steel lining plate, and the lining L may also be made of other materials such as high molecular polymer coatings with good wear resistance and non-magnetic properties.

[0040] In this embodiment, the shell S is a carbon steel liner.

[0041] Specifically, the material of the outer shell S is Q235B, which is cheap and has good mechanical properties, and is conducive to obtaining an optimal balance between the structural strength and manufacturing cost of the powder bin body straight tube 110.

[0042] Of course, those skilled in the art will appreciate that the shell S is not limited to the above-mentioned carbon steel liner, and the shell S may also be other aluminum alloys with low cost and good mechanical properties.

[0043] In this embodiment, if Figure 1 , Figure 2 and Figure 3 As shown, the composite shell includes a plurality of segmented structures 111 spliced ​​together, and the segmented structure 111 includes an inner lining unit plate and an outer shell unit plate.

[0044] Since the powder bin body straight tube 110 is a large structural part, integral molding will result in excessively high costs. Figure 1 and Figure 3The slice structures 111 can be connected along the circumferential direction of the powder bin body straight cylinder 110 to form an annular structure, and the annular structures are connected along the axial direction of the powder bin body straight cylinder 110 to form a cylindrical structure.

[0045] Of course, the shape of the segmented structure 111 including the inner lining unit plate and the outer shell unit plate and the method of forming the cylindrical structure are not limited to the rectangle shown in the figure and the above-mentioned method. Those skilled in the art can understand that the segmented structure 111 can also be designed into other shapes and assembled into a cylindrical structure.

[0046] The segment structures 111 can be connected by welding or detachable connection. Figure 2 and Figure 3 As shown, both the lining unit plate and the shell unit plate include side flanges 111 a, and adjacent segment structures 111 are fastened and connected by fasteners 112 passing through the side flanges 111 a.

[0047] Specifically, see Figure 2 The segmented structures 111 each include a side flange 111a (i.e., annular connecting flange) arranged along the circumferential direction of the powder silo body straight cylinder 110 and a side flange 111a (i.e., longitudinal connecting flange) arranged along the axial direction of the powder silo body straight cylinder 110; the segmented structures 111 are detachably connected to each other through the longitudinal connecting flange to form an annular structure, and the annular structures are detachably connected to each other through the annular connecting flange to form the cylindrical structure.

[0048] The inner liner L and the outer shell S are punched by a die to form a side flange 111a, and then the adjacent segment structures 111 are connected on site by bolts as fasteners 112. Compared with the prior art, in which the parts of the cylinder are connected by welding, this arrangement can not only reduce the production cycle, but also reduce the processing difficulty.

[0049] Of course, the side flange 111a is not limited to the above-mentioned stamping process, and can also be installed on the segment structure 111 by welding. The fastening connection between adjacent segment structures 111 is not limited to the above-mentioned bolts, and can also be rivets.

[0050] In this embodiment, if Figure 3 As shown, a sealing strip 113 is provided between the side flanges 111 a of adjacent segment structures 111 .

[0051] Specifically, see Figure 3 Such a configuration is beneficial to improve the sealing performance of the powder bin body straight tube 110. The material of the sealing strip 113 is EPDM foam rubber. The material of the sealing strip 113 can also be other materials such as resin and asbestos.

[0052] In this embodiment, the lining unit plate and the shell unit plate are both arc-shaped plates along the circumferential direction of the straight cylinder.

[0053] Specifically, such a configuration is conducive to forming a standard cylindrical body after the segmented structure 111 is spliced, thereby saving materials and maximizing the volume of the powder bin body straight cylinder 110.

[0054] This application also protects a powder bin body 100, such as Figure 2 As shown, the powder bin body 100 in a specific embodiment includes the above-mentioned powder bin body straight cylinder 110.

[0055] Obviously, the powder bin body 100 has all the technical effects brought by the above-mentioned powder bin body straight tube 110, so it will not be described here.

[0056] In this embodiment, if Figure 2 As shown, the powder silo body 100 includes a powder silo body top 120 installed on the top of the powder silo body straight cylinder 110 and a powder silo body cone 130 installed on the bottom of the powder silo body straight cylinder 110; the shell of the powder silo body top 120, the shell of the powder silo body cone 130 and the shell of the powder silo body straight cylinder 110 are all composite shells.

[0057] Specifically, see Figure 2 Such a configuration can further ensure that the loss of the powder silo body 100 does not affect the magnetism of the concrete and reduce the manufacturing cost. For example, when the lining L of the composite shell is made of 0Cr18Ni9 material and the outer shell S is made of Q235B material, the equipment cost is only about half of the solution using 0Cr18Ni9 material as a whole, effectively reducing the overall equipment cost.

[0058] This application also protects a concrete mixing plant, such as Figure 4 As shown, a concrete mixing station in a specific embodiment includes:

[0059] The powder bin body 100 mentioned above; and

[0060] The powder bin frame 200 is used to support the powder bin body 100;

[0061] The powder bin frame 200 is a carbon steel frame.

[0062] Specifically, the concrete mixing station also includes components such as a dust collector, a material pipe, and a safety valve (not shown in the figure). With such a configuration, the overall cost of the concrete mixing station can be further reduced due to all the technical effects brought by the powder silo frame 200 and the powder silo body 100 that meet the requirements in terms of structural strength and cost.

[0063] In the description of the present application, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of the present application, "plurality" means at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0064] In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0065] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

Claims

1. The powder bin is straight, characterized by: The powder bin body straight cylinder (110) is a composite shell with a cylindrical structure, and the composite shell includes an inner lining (L) and an outer shell (S). The inner lining (L) is used to surround the straight cylinder cavity of the powder bin body straight cylinder (110), and the outer shell (S) is fitted on the outer side of the inner lining (L). The inner lining (L) is a non-magnetic material or a weakly magnetic material.

2. The straight powder silo body according to claim 1, characterized in that: The inner lining (L) is a non-magnetic stainless steel lining plate.

3. The straight powder silo body according to claim 1, characterized in that: The shell (S) is a carbon steel liner.

4. The powder silo body straight tube according to any one of claims 1 to 3, characterized in that: The composite shell comprises a plurality of slice structures (111) spliced ​​together, wherein the slice structure (111) comprises an inner lining unit plate and an outer shell unit plate.

5. The straight powder silo body according to claim 4, characterized in that: The lining unit plate and the shell unit plate both include side flanges (111a), and adjacent segment structures (111) are fastened and connected via fasteners (112) that penetrate the side flanges (111a).

6. The straight powder silo body according to claim 4, characterized in that: A sealing strip (113) is provided between the side flanges (111a) of adjacent segment structures (111).

7. The straight powder silo body according to claim 4, characterized in that: The lining unit plate and the shell unit plate are both arc-shaped plates along the circumferential direction of the straight cylinder.

8. The powder bin body is characterized by: The powder silo body (100) comprises a powder silo body straight cylinder (110) according to any one of claims 1 to 6.

9. The powder bin body according to claim 8, characterized in that: The powder silo body (100) comprises a powder silo top (120) installed on the top of the powder silo body straight cylinder (110) and a powder silo cone (130) installed on the bottom of the powder silo body straight cylinder (110); the shell of the powder silo top (120), the shell of the powder silo cone (130) and the shell of the powder silo body straight cylinder (110) are all the composite shells.

10. Concrete mixing station, characterized in that, The concrete mixing station comprises: The powder silo body (100) according to claim 8 or 9; and A powder bin frame (200), used for supporting the powder bin body (100); Wherein, the powder bin frame (200) is a carbon steel frame.

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