Storage bin gravel heating device and concrete mixing plant
By installing hollow frames and distributing hollow heating pipes on the inner wall of the storage silo sand and gravel heating device, the problem of uneven heating of the existing heating devices is solved, and more efficient sand and gravel heating is achieved, ensuring the quality of the concrete output.
Patent Information
- Application Number
- CN202422047418.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-22
- Publication Date
- 2025-07-01
- Estimated Expiration
- 2034-08-22
AI Technical Summary
The existing storage silo sand and gravel heating device heat pipes are arranged on the outer silo wall, resulting in uneven heating of sand and gravel and low efficiency.
A storage silo sand and gravel heating device is designed. By installing a hollow enclosure on the inner wall of the storage silo of the dispenser, an annular interlayer cavity is formed, and a hollow heating tube is distributed in the enclosure. Combined with the heat medium interface assembly, heating medium is introduced into the annular interlayer cavity to achieve uniform heating of sand and gravel.
It improves the uniformity and efficiency of sand and gravel heating, and ensures the outlet temperature and quality of concrete.
Smart Images
Figure CN223044842U_ABST
Abstract
Description
Technical Field
[0001] This application belongs to the field of mixing equipment. Specifically, it relates to a sand and gravel heating device for a storage bin and a concrete mixing plant. Background Art
[0002] Concrete mixture is a mixture composed of cement, aggregates, mixing water, admixtures, etc. The main chemical change occurring during the mixing process of the mixture is the hydration reaction of cement. The hydration rate of cement is related to the fineness of cement and is also significantly affected by temperature. When the mixing plant operates in a low-temperature environment, in order to meet the requirements of the concrete discharge temperature, it is usually necessary to heat the sand and gravel aggregates. However, the heat pipes H of the existing sand and gravel heating devices for the storage bins of batching machines are generally arranged on the outer bin wall E of the storage bins of batching machines. As Figure 1 shown, the sand and gravel in the middle of the storage bin of the batching machine cannot be fully heated, resulting in uneven heating and low heating efficiency. Summary of the Invention
[0003] The purpose of this application is to provide a sand and gravel heating device for a storage bin and a concrete mixing plant to improve the uniformity of the heating effect on the aggregates in the storage bin of the batching machine.
[0004] To achieve the above purpose, on the one hand, this application provides a sand and gravel heating device for a storage bin, which includes:
[0005] A hollow enclosure frame for being embedded on the inner bin wall of the storage bin of the batching machine. The hollow cavity of the hollow enclosure frame forms an annular sandwich cavity surrounding the inner bin wall;
[0006] A heating tube assembly including a number of hollow heating tubes distributed in the enclosure cavity of the hollow enclosure frame. The tube cavities of the hollow heating tubes communicate with the annular sandwich cavity;
[0007] A heat medium interface assembly installed on the outer bin wall of the storage bin of the batching machine and used to introduce a heating medium into the annular sandwich cavity.
[0008] In some embodiments, the annular sandwich cavity is a quadrilateral chamber and includes a first side cavity connected to the heat medium interface assembly and a second side cavity symmetrically distributed at intervals with respect to the first side cavity;
[0009] Among them, the heating tube assembly includes a number of first hollow heating tubes. One end of the first hollow heating tube communicates with the second side cavity, and the other end is a closed end and extends towards the first side cavity.
[0010] In some embodiments, the annular sandwich cavity further includes a third side cavity and a fourth side cavity symmetrically distributed at intervals. Both the third side cavity and the fourth side cavity communicate the first side cavity and the second side cavity;
[0011] Among them, the heating pipe assembly further includes a plurality of second hollow heating pipes, which are arranged at an angle with the first hollow heating pipe and their pipe cavities are communicated with each other.
[0012] In some embodiments, the first hollow heating pipe extends along a first direction from the first side cavity towards the second side cavity, and a plurality of second hollow heating pipes are arranged in parallel at intervals in sequence along a second direction from the third side cavity towards the fourth side cavity;
[0013] And / or, the first hollow heating pipe extends along the second direction, and a plurality of second hollow heating pipes are arranged in parallel at intervals in sequence along the first direction.
[0014] In some embodiments, the heating pipe assemblies are arranged in upper and lower layers.
[0015] In some embodiments, the heating medium is hot steam, and the first hollow heating pipe and / or the second hollow heating pipe are provided with steam outlet holes.
[0016] In some embodiments, the heat medium interface assembly includes: a heat medium inlet pipe communicated with the annular interlayer cavity and a valve for controlling the on / off of the heat medium inlet pipe.
[0017] In some embodiments, the aggregate heating device for the storage bin includes:
[0018] A protective plate, which covers above the hollow heating pipe.
[0019] In some embodiments, the protective plate is an angle steel, and the angle steel covers above the hollow heating pipe with the opening facing downwards.
[0020] On the other hand, the present application protects a concrete mixing plant, and the aggregate storage bin of the batching machine is provided with the above-mentioned aggregate heating device for the storage bin.
[0021] In the technical solution of the present application, the periphery of the hollow frame embedded on the inner wall of the aggregate storage bin of the batching machine encloses a cavity for accommodating the aggregate of the aggregate storage bin of the batching machine. After the heating medium is filled into the annular interlayer cavity of the hollow frame through the heat medium interface assembly, part of the aggregate in contact with the inner wall surface will be heated to meet the requirement of the concrete discharge temperature. In addition, the aggregate heating device for the storage bin is also provided with a heating pipe assembly distributed in the cavity, and the pipe cavity of the hollow heating pipe is communicated with the annular interlayer cavity. Therefore, after the heating medium enters the pipe cavity of the hollow heating pipe through the annular interlayer cavity, the aggregate in the middle part of the cavity will also be heated. Compared with the prior art, since the present application heats the periphery of the hollow frame and heats the aggregate in the middle part of the cavity through the heating pipe assembly, the heating uniformity of the aggregate is improved, thereby ensuring the discharge temperature and quality of the concrete aggregate.
[0022] Other features and advantages of the embodiments of the present application will be described in detail in the subsequent specific embodiment part. Description of the Drawings
[0023] The accompanying drawings are used to provide a further understanding of the embodiments of the present application and form 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 to the embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on the structures shown in these drawings. In the drawings:
[0024] Figure 1 is a schematic structural diagram of a prior art sand and gravel heating device for a storage bin;
[0025] Figure 2 is a schematic structural diagram of a sand and gravel heating device for a storage bin according to a specific embodiment of the present application;
[0026] Figure 3 is Figure 2 a partial enlarged view of part A in
[0027] Figure 4 is Figure 2 a three-dimensional schematic diagram of the sand and gravel heating device for the storage bin in
[0028] Figure 5 is Figure 2 a top view of the sand and gravel heating device for the storage bin in
[0029] Figure 6 is a top view of a sand and gravel heating device for a storage bin according to another embodiment of the present application.
[0030] Explanation of reference numerals
[0031] H Heat pipe 320 Second side cavity
[0032] V Valve 330 Third side cavity
[0033] T Heat medium inlet pipe 340 Fourth side cavity
[0034] I Inner bin wall 600 First hollow heating pipe
[0035] E Outer bin wall 700 Second hollow heating pipe
[0036] 100 Hollow enclosure 800 Protective plate
[0037] 300 Annular interlayer cavity 900 Steam outlet hole
[0038] 310 First side cavity Specific embodiments
[0039] The following will describe the specific embodiments of the present application in detail with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only for explaining and understanding the present application, and are not used to limit the present application.
[0040] The following describes a storage bin sand and gravel heating device and a concrete mixing plant according to the present application with reference to the accompanying drawings.
[0041] The present application discloses a novel storage bin sand and gravel heating device, as Figure 2 , Figure 4 and Figure 5 shown. A storage bin sand and gravel heating device in a specific embodiment includes:
[0042] A hollow surrounding frame 100, which is used to be embedded on the inner bin wall I of the batching machine storage bin. The hollow cavity of the hollow surrounding frame 100 forms an annular sandwich cavity 300 surrounding the inner bin wall I;
[0043] A heating tube assembly, which includes a plurality of hollow heating tubes distributed in the surrounding cavity of the hollow surrounding frame 100, and the tube cavities of the hollow heating tubes communicate with the annular sandwich cavity 300;
[0044] A heat medium interface assembly, which is installed on the outer bin wall E of the batching machine storage bin and is used to introduce a heating medium into the annular sandwich cavity 300.
[0045] Specifically, referring to Figure 2 and Figure 4 , the hollow surrounding frame 100 is embedded on the inner bin wall I of the batching machine storage bin. The frame edge of the hollow surrounding frame 100 is a hollow frame edge and forms an annular sandwich cavity 300; the periphery of the hollow surrounding frame 100 encloses a surrounding cavity for accommodating the aggregate in the batching machine storage bin, and a heating tube assembly is distributed in the surrounding cavity. The tube cavities of the hollow heating tubes of the heating tube assembly communicate with the annular sandwich cavity 300. After injecting a heating medium into the annular sandwich cavity 300 through the heat medium interface assembly, the aggregate in the middle part of the surrounding cavity and the part in contact with the periphery of the hollow surrounding frame 100 will be heated. Compared with the prior art, such as the heating method of arranging the heat pipe H on the outer bin wall E of the batching machine storage bin as shown in Figure 1 , the heating surface of the hollow surrounding frame 100 of the present application can be made wider and larger, so the heating effect on the aggregate on the outer peripheral side of the surrounding cavity is better; the heating tube assembly distributed in the surrounding cavity can also heat the aggregate in the middle part of the surrounding cavity, thereby greatly improving the uniformity of the overall temperature of the aggregate, and further ensuring the quality of the concrete out of the machine. In addition, as an example, when the storage bin sand and gravel heating device of the batching machine directly heats the aggregate by spraying hot steam, since the heating surface of the periphery of the hollow surrounding frame 100 in contact with the aggregate is larger and the temperature distribution is more uniform, the condensation of the hot steam on the periphery can be avoided, thereby reducing the adhesion residue of the aggregate on the periphery.
[0046] In this embodiment, asFigure 5 As shown, the annular sandwich cavity 300 can be a quadrilateral cavity and includes a first side cavity 310 connected to a heat medium interface component and a second side cavity 320 symmetrically distributed at an interval from the first side cavity 310;
[0047] Among them, the heating tube assembly includes a number of first hollow heating tubes 600. One end of the first hollow heating tube 600 communicates with the second side cavity 320, and the other end is a closed end and extends toward the first side cavity 310.
[0048] Specifically, referring to Figure 5 , after the heating medium enters the front first side cavity 310 via the heat medium interface component, it needs to continue to surround to the rear side of the annular sandwich cavity 300 before it can be filled into the lumen of the first hollow heating tube 600. In other words, the heating medium first heats the aggregate on the outer peripheral side of the outer heating cavity of the hollow frame 100, and then heats the aggregate in the middle part of the cavity through the first hollow heating tube 600. Such a setting can ensure the uniformity of the distribution of the heating medium in the annular sandwich cavity 300 and the lumen, which is beneficial to improving the uniformity and efficiency of aggregate heating.
[0049] Among them, the shape of the annular sandwich cavity 300 is not limited to quadrilateral, and can also be circular, etc. The first side cavity 310 and the second side cavity 320 can also be arranged in an interchangeable position.
[0050] In this embodiment, as Figure 6 shown, the annular sandwich cavity 300 may further include a third side cavity 330 and a fourth side cavity 340 that are symmetrically distributed at an interval. Both the third side cavity 330 and the fourth side cavity 340 communicate with the first side cavity 310 and the second side cavity 320;
[0051] Among them, the heating tube assembly further includes a number of second hollow heating tubes 700. The second hollow heating tubes 700 are arranged at an angle with the first hollow heating tubes 600 and their lumens communicate with each other.
[0052] Specifically, referring to Figure 6 , after the heating medium enters the third side cavity 330 and the fourth side cavity 340 respectively from the first side cavity 310 and then enters the second side cavity 320, that is, it reduces the path required for the heating medium to enter the second side cavity 320 from the first side cavity 310, reduces the temperature loss of the heating medium, and thus improves the heating efficiency and heating uniformity. In addition, the heating tube assembly further includes a number of second hollow heating tubes 700 that are arranged at an angle with the first hollow heating tubes 600 and their lumens communicate with each other. Such a setting enables the heating medium in the first hollow heating tube 600 to also enter the second hollow heating tube 700, and further expands the heatable range of the heating tube assembly, thereby improving the heating efficiency and heating uniformity of the aggregate in the middle part of the cavity.
[0053] Among them, the included angle between the second hollow heating tube 700 and the first hollow heating tube 600 is not limited to the ninety degrees shown in the figure, and can also be, for example, forty-five degrees or other angles.
[0054] In this embodiment, as Figure 6 shown, the first hollow heating tube 600 can extend along a first direction from the first side cavity 310 towards the second side cavity 320, and a plurality of second hollow heating tubes 700 are arranged in parallel at intervals in sequence along a second direction from the third side cavity 330 towards the fourth side cavity 340;
[0055] and / or, the first hollow heating tube 600 extends along the second direction, and a plurality of second hollow heating tubes 700 are arranged in parallel at intervals in sequence along the first direction.
[0056] Specifically, referring to Figure 6 , the first direction is the "front-back" direction, the second direction is the "left-right" direction, and the first hollow heating tube 600 and the second hollow heating tube 700 are perpendicular to each other, thereby improving the coverage effect of the heating tube assembly on the surrounding cavity. Among them, the first hollow heating tube 600 can also extend along the second direction, and the second hollow heating tube 700 can also be arranged in parallel at intervals in sequence along the first direction.
[0057] In this embodiment, as Figure 5 and Figure 6 shown, the heating tube assemblies can be arranged in upper and lower layers.
[0058] Specifically, referring to Figure 6 , the heating tube assemblies are arranged in multiple layers, and each layer of heating tube assemblies can include a plurality of first hollow heating tubes 600 and second hollow heating tubes 700 that are perpendicular to each other. With such a setting, the heating effect of the aggregate in the surrounding cavity by the aggregate heating device in the storage bin can be further improved. Among them, the heating tube assemblies are not limited to Figure 5 the two layers shown, and can also be three layers or more.
[0059] The aggregate heating device in the storage bin can indirectly heat the aggregate with a heating medium such as hot water, or can directly heat the aggregate with a heating medium such as hot steam, or can combine the direct heating method and the indirect heating method at the same time. In this embodiment, as Figure 2 and Figure 3 shown, the heating medium can be hot steam, and the first hollow heating tube 600 and / or the second hollow heating tube 700 are provided with steam outlet holes 900.
[0060] Specifically, referring to Figure 2 and Figure 3, the aggregate in the outer peripheral part of the heating enclosure of the aggregate storage bin sand and gravel heating device can be indirectly heated by the periphery of the hollow enclosure 100, or the aggregate can be directly heated by the hot steam ejected from the steam outlet holes 900 of the first hollow heating pipe 600 and / or the second hollow heating pipe 700. With such a setting, the heating efficiency can be greatly improved.
[0061] Of course, those skilled in the art can understand that steam outlet holes 900 can also be provided on the hollow enclosure 100 of the aggregate storage bin sand and gravel heating device to directly heat the aggregate.
[0062] In this embodiment, as Figure 2 shown, the heat medium interface assembly may include: a heat medium inlet pipe T communicating with the annular interlayer cavity 300 and a valve V for controlling the on / off of the heat medium inlet pipe T.
[0063] Specifically, referring to Figure 2 , the heat medium inlet pipe T is connected to a steam generator (such as a steam boiler), and steam can enter the hollow enclosure 100 through the heat medium inlet pipe T, and the on / off of the heat medium inlet pipe T is controlled by the valve V. With such a setting, the operation is convenient and the structure is simple.
[0064] In this embodiment, as Figure 3 shown, the aggregate storage bin sand and gravel heating device includes:
[0065] A protective plate 800, covering above the hollow heating pipe.
[0066] Specifically, referring to Figure 3 , since the aggregate is generally sand and gravel, during the process of loading the aggregate by the loader, the heating pipe assembly may be damaged and blocked by the impact of the sand and gravel. Therefore, after setting the protective plate 800, the applicable range of the aggregate storage bin sand and gravel heating device can be increased, and the reliability of the aggregate storage bin sand and gravel heating device can be improved.
[0067] The form of the protective plate 800 can be various. Preferably, in this embodiment, as Figure 3 shown, the protective plate 800 is an angle steel, and the angle steel is covered above the hollow heating pipe with the opening facing downwards.
[0068] Specifically, referring to Figure 3, the angle steel close to the hollow heating pipe has an opening facing downward and covers the hollow heating pipe. Among them, the hollow heating pipe can be the first hollow heating pipe 600 and / or the second hollow heating pipe 700. The angle steel is easy to process, has a low cost and a good covering effect. It should be noted that when the sand and gravel heating device of the storage bin includes a protective plate 800 and the first hollow heating pipe 600 and / or the second hollow heating pipe 700 is provided with a steam outlet hole 900, the steam outlet hole 900 should have an opening facing downward and be arranged at an angle of 45 degrees with the horizontal plane to avoid the protective plate 800 interfering with the ejection of the hot steam and ensure the efficiency of the hot steam heating the aggregate. Of course, in order to avoid the protective plate 800 interfering with the ejection of the hot steam and ensure the angle of the hot steam heating efficiency, the angle between the steam outlet hole 900 and the horizontal plane is not limited to the above-mentioned 45 degrees, and can also be set between 30 degrees and 60 degrees.
[0069] This application discloses a new type of concrete mixing plant. In a specific embodiment, the batching machine storage bin is provided with the above-mentioned sand and gravel heating device of the storage bin.
[0070] Specifically, the hollow enclosure 100 of the sand and gravel heating device of the storage bin is detachably installed in the inner bin wall I of the batching machine storage bin. A through hole can be opened on the batching machine storage bin to facilitate the access of the heat medium inlet pipe T installed on the outer bin wall E of the batching machine storage bin. With such a setting, the structure is simple and it is beneficial to the upgrade of the existing batching machine storage bin structure.
[0071] In addition, this concrete mixing plant has all the technical effects brought by the above-mentioned sand and gravel heating device of the storage bin, which will not be elaborated here.
[0072] Of course, those skilled in the art can understand that the sand and gravel heating device of the storage bin can also be integrally arranged with the batching machine storage bin.
[0073] In the description of this application, it should be understood that the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" can explicitly or implicitly include at least one of these features. In the description of this application, the meaning of "a plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.
[0074] In this application, unless otherwise clearly stipulated or defined, terms such as "installed", "connected", "joined", "fixed", etc. shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection, an electrical connection, or capable of communicating with each other; it may be directly connected, or indirectly connected through an intermediate medium, and it may be the communication inside two components or the interaction relationship between two components, unless otherwise clearly defined. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.
[0075] In the description of this specification, the description with reference to terms such as "one embodiment", "some embodiments", "examples", "specific examples", or "some examples", etc. means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of this application. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.
Claims
1. A storage silo sand and gravel heating device, characterized in that: The storage bin sand and gravel heating device comprises: A hollow enclosure frame (100) is used for being embedded in an inner silo wall (I) of a material storage silo of a batching machine, wherein the hollow cavity of the hollow enclosure frame (100) is formed into an annular sandwich cavity (300) surrounding the inner silo wall (I); A heating tube assembly, comprising a plurality of hollow heating tubes (H) distributed in the enclosure of the hollow enclosure (100), wherein the tube lumens of the hollow heating tubes (H) are connected to the annular sandwich cavity (300); A heat medium interface assembly is mounted on the outer silo wall (E) of the material storage silo of the batching machine and is used to pass a heating medium into the annular interlayer cavity (300).
2. The storage silo sand and gravel heating device according to claim 1 is characterized in that: The annular sandwich cavity (300) is a quadrilateral cavity and comprises a first side cavity (310) connected to the heat medium interface assembly and a second side cavity (320) spaced symmetrically from the first side cavity (310); The heating tube assembly comprises a plurality of first hollow heating tubes (600), one end of the first hollow heating tube (600) is connected to the second side cavity (320), and the other end is a closed end and extends toward the first side cavity (310).
3. The storage silo sand and gravel heating device according to claim 2 is characterized in that: The annular interlayer cavity (300) further comprises a third side cavity (330) and a fourth side cavity (340) which are symmetrically distributed at intervals, and the third side cavity (330) and the fourth side cavity (340) are both connected to the first side cavity (310) and the second side cavity (320); The heating tube assembly further comprises a plurality of second hollow heating tubes (700), wherein the second hollow heating tubes (700) are arranged at an angle to the first hollow heating tubes (600) and the tube lumens of the second hollow heating tubes (700) are connected to each other.
4. The storage silo sand and gravel heating device according to claim 3 is characterized in that: The first hollow heating tube (600) extends along a first direction from the first side cavity (310) toward the second side cavity (320), and a plurality of the second hollow heating tubes (700) are sequentially arranged in parallel and spaced apart along a second direction from the third side cavity (330) toward the fourth side cavity (340); And / or, the first hollow heating tube (600) extends along the second direction, and a plurality of the second hollow heating tubes (700) are sequentially arranged in parallel and at intervals along the first direction.
5. The storage silo sand and gravel heating device according to claim 3, characterized in that: The heating tube components are arranged in upper and lower layers.
6. The storage silo sand and gravel heating device according to claim 3, characterized in that: The heating medium is hot steam, and the first hollow heating tube (600) and / or the second hollow heating tube (700) are provided with a steam outlet hole (900).
7. The storage silo sand and gravel heating device according to claim 1, characterized in that: The heat medium interface assembly comprises: a heat medium inlet pipe (T) communicating with the annular sandwich cavity (300) and a valve (V) for controlling the on and off of the heat medium inlet pipe (T).
8. The storage bin sand and gravel heating device according to any one of claims 1 to 7, characterized in that: The storage bin sand and gravel heating device comprises: A protective plate (800) covers the top of the hollow heating tube (H).
9. The storage bin sand and gravel heating device according to claim 8, characterized in that: The protective plate (800) is an angle steel, and the angle steel opening is arranged to cover the top of the hollow heating tube (H) downward.
10. A concrete mixing station, comprising a batching machine storage bin, characterized in that: The batching machine storage bin is provided with a storage bin sand and gravel heating device according to any one of claims 1 to 9.