Rotary double-layer bin and wall scraping assembly for ammonium sulfate and ammonium thiocyanate production

Abstract

The utility model belongs to desulfurization waste liquid salt production technical field, concretely relates to a kind of ammonium sulfate, ammonium thiocyanate production is rotated double-layer bin and its wall scraping subassembly, the bin includes: outer bin;Inner bin, rotatably housed in the outer bin;Support rotating mechanism, between the outer bin and inner bin, for supporting the inner bin relative outer bin stable rotation;Wall scraping subassembly, set in the outer wall of the outer bin, the scraper of wall scraping subassembly extends into the inner bin and with its inner wall adhering;Driving mechanism, including drive motor and belt, the drive motor is connected with the inner bin transmission by the belt;Wherein, when the drive motor rotates, the inner bin is rotated relative to the scraper by belt, to scrape off the material attached on the inner wall of the inner bin.

Description

Technical Field

[0001] This utility model belongs to the field of desulfurization wastewater salt production technology, and particularly relates to a rotating double-layer silo and its scraping component for the production of ammonium sulfate and ammonium thiocyanate. Background Technology

[0002] In the production of salt extraction from desulfurization wastewater, the ammonium sulfate and ammonium thiocyanate salts that are evaporated, crystallized, and centrifuged contain moisture and have small particle diameters. During packaging and feeding, these particles easily adhere to the inner wall of the silo, and over time, they can clog the feed inlet. When the feed inlet becomes clogged, the machine needs to be stopped for maintenance, and the inlet needs to be manually unclogged. This process is time-consuming and labor-intensive, causing the company to be unable to continue production.

[0003] Therefore, how to prevent ammonium sulfate and ammonium thiocyanate from adhering to the inner wall of the silo during the feeding process, thereby causing blockage of the feeding port, is a technical problem that urgently needs to be solved by those skilled in the art.

[0004] It should be noted that the information disclosed in this background section is only for understanding the background technology of the present application concept, and therefore, the above description is not considered to constitute prior art information. Utility Model Content

[0005] This disclosure provides at least one rotating double-layer hopper and its scraping assembly.

[0006] In a first aspect, embodiments of this disclosure provide a rotating double-layer hopper, comprising: External material storage silo; The inner hopper is rotatably placed inside the outer hopper; A supporting rotation mechanism is provided between the outer material bin and the inner material bin to support the stable rotation of the inner material bin relative to the outer material bin; A scraper assembly is disposed on the outer wall of the outer hopper, and the scraper of the scraper assembly extends into the inner hopper and fits against its inner wall; The drive mechanism includes a drive motor and a belt, wherein the drive motor is connected to the inner hopper via the belt. When the drive motor rotates, it drives the inner hopper to rotate relative to the scraper via a belt, so as to scrape off the material adhering to the inner wall of the inner hopper.

[0007] In one optional embodiment, the support rotation mechanism includes: Multiple internal supports are spaced apart along the outer wall of the inner silo; Multiple external supports are spaced apart along the inner wall of the outer hopper, and each external support is opposite to one of the inner supports to form a ball bearing mounting cavity. Multiple balls, each ball being disposed between a pair of opposing inner supports and outer supports; When the inner material hopper rotates relative to the scraper, the ball bearings roll within the mounting cavity.

[0008] In one optional embodiment, an oil injection pipe is provided on the outer material hopper, and the position of the oil injection pipe corresponds to that of the ball bearing.

[0009] In one alternative embodiment, the number of the plurality of inner supports and the plurality of outer supports is four, and they are arranged uniformly and symmetrically along the circumference.

[0010] In one alternative embodiment, the wall scraping assembly further includes a scraper base and a support rod; The scraper base is fixedly installed on the outer wall of the outer hopper; One end of the support rod is connected to the scraper base, and the other end extends into the inner material hopper; and... The support rod is arranged parallel to the inner wall of the inner hopper so that the scraper on the support rod fits against the inner wall of the inner hopper.

[0011] In one optional embodiment, the scraper is detachably mounted on the support rod, and the connection position between the scraper and the support rod is adjustable to adjust the degree of contact between the scraper and the inner wall of the inner hopper.

[0012] In one optional embodiment, the outer wall of the inner hopper is provided with an annular groove, and the inner wall of the outer hopper is correspondingly provided with a ball bearing. When the inner hopper rotates relative to the outer hopper, the ball bearing rotates within the groove.

[0013] In a second aspect, this disclosure also provides a scraping assembly for a silo, comprising: a scraper base, which is fixedly disposed on the outer wall of the silo; A support rod, one end of which is connected to the scraper base, and the other end of which extends into the hopper; A scraper is mounted on the rod of the support rod that extends into the hopper, and the scraper is in contact with the inner wall of the hopper; When the inner wall of the hopper rotates relative to the hopper body, the scraper moves relative to the inner wall of the hopper to scrape off the material adhering to the inner wall.

[0014] In one alternative embodiment, the scraper is detachably mounted on the support rod, and the connection position between the scraper and the support rod is adjustable to adjust the degree of contact between the scraper and the inner wall of the hopper.

[0015] In one alternative embodiment, the scraper has a sheet-like structure, and the shape of its scraping edge is adapted to the contour of the inner wall of the hopper.

[0016] The beneficial effect of this utility model is that the inner silo of the rotating double-layer silo for the production of ammonium sulfate and ammonium thiocyanate is rotatably placed inside the outer silo through a support rotating mechanism. When the drive mechanism drives the inner silo to rotate, it generates relative motion with the fixed scraper, realizing continuous automatic scraping of the attached material, thereby avoiding blockage caused by the accumulation of material on the inner wall of the inner silo and ensuring the continuity of production.

[0017] Other features and advantages of this invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objectives and other advantages of this invention are realized and obtained through the structures particularly pointed out in the description and drawings.

[0018] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, preferred embodiments are described in detail below with reference to the accompanying drawings. Attached Figure Description

[0019] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0020] Figure 1 A cross-sectional view of a rotating double-layer silo provided in an embodiment of this disclosure; Figure 2 This is a top view of a rotating double-layer silo provided in an embodiment of the present disclosure.

[0021] In the picture: 100. Outer hopper; 110. Oil injection pipe; 120. Ball bearing; 200. Inner hopper; 210. Groove; 300. Support rotation mechanism; 310. Inner support; 320. Outer support; 330. Ball bearing; 400. Scraper assembly; 410. Scraper base; 420. Support rod; 430. Scraper; 500. Drive mechanism; 510. Drive motor; 520. Belt. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0023] In this document, when it is mentioned that a first component is located on a second component, this can mean that the first component can be directly formed on the second component, or that a third component can be inserted between the first and second components. Furthermore, in the accompanying drawings, the thickness of the components may be exaggerated or reduced for the purpose of effectively describing the technical content.

[0024] In this document, exemplary embodiments of the present disclosure will be described in more detail with reference to the accompanying drawings. As used herein, expressions such as “at least one of…” modify the entire list of elements when following a list of elements, rather than individual elements in the list. For example, the expression “at least one of a, b, and c” should be understood to include only a, only b, only c, both a and b, both a and c, both b and c, or all of a, b, and c.

[0025] The terminology used herein is for the purpose of describing specific exemplary configurations only and is not intended to be limiting. As used herein, the singular articles “a,” “an,” and “the” may also be intended to include plural forms unless otherwise clearly stated herein. The terms “comprising,” “including,” and “having” are inclusive and thus specify the presence of features, steps, operations, elements, and / or components, but do not preclude the presence or addition of one or more other features, steps, operations, elements, components, and / or combinations thereof. The method steps, processes, and operations described herein should not be construed as requiring them to be performed in the specific order discussed or shown, unless specifically identified as such. Additional or alternative steps may be employed.

[0026] As used herein, the phrases “in one embodiment,” “according to one embodiment,” “in some embodiments,” etc., generally refer to the fact that a particular feature, structure, or characteristic following the phrase can be included in at least one embodiment of this disclosure. Therefore, a particular feature, structure, or characteristic can be included in more than one embodiment of this disclosure, such that these phrases do not necessarily refer to the same embodiment. As used herein, the terms “example,” “exemplary,” etc., are used to “serve as an example, instance, or illustration.” Any implementation, aspect, or design described herein as “example” or “exemplary” is not necessarily to be construed as preferred or superior to other implementations, aspects, or designs. Rather, the use of the terms “example,” “exemplary,” etc., is intended to present concepts in a specific manner.

[0027] Research has revealed the following drawbacks of existing technologies: In the production of salt extraction from desulfurization wastewater, the ammonium sulfate and ammonium thiocyanate salts produced through evaporation, crystallization, and centrifugation contain moisture and have small particle diameters. These particles easily adhere to the inner wall of the silo during packaging and feeding, accumulating over time and clogging the feed inlet. When blockage occurs at the feed inlet, machine shutdown and maintenance are required, necessitating manual unclogging. This process is time-consuming and labor-intensive, disrupting continuous production.

[0028] Based on the above research, this disclosure provides a rotating double-layer hopper. By setting a rotatable inner hopper and a fixed scraper, continuous relative motion is generated between the inner wall of the hopper and the scraper, thereby actively and continuously scraping off the material adhering to the inner wall during the material feeding process, preventing the formation of accumulation and blockage from the source.

[0029] The shortcomings of the above solutions are the result of the inventor's practical experience and careful research. Therefore, the discovery process of the above problems and the solutions proposed in this disclosure should be considered as the inventor's contribution to this disclosure.

[0030] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0031] The following detailed description, with reference to the accompanying drawings, describes some embodiments of the present invention. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0032] See Figure 1This disclosure provides a rotating double-layer hopper, comprising: an outer hopper 100, which is a fixed component; an inner hopper 200, rotatably placed inside the outer hopper 100; the inner hopper 200 is used for material feeding, and its inner wall is in direct contact with the material; a supporting rotation mechanism 300, disposed between the outer hopper 100 and the inner hopper 200, for supporting the stable rotation of the inner hopper 200 relative to the outer hopper 100; a scraper assembly 400, disposed on the outer wall of the outer hopper 100, with its scraper 430 extending into and abutting its inner wall; and a drive mechanism 500, including a drive motor 510 and a belt 520, the drive motor 510 being connected to the inner hopper 200 via the belt 520. During operation, material is continuously added to the inner hopper 200. Starting the drive motor 510 causes the inner hopper 200 to rotate at a uniform speed via the belt 520. At this time, the scraper assembly 400 remains stationary because it is fixed to the outer hopper 100. Furthermore, continuous relative motion occurs between the inner wall of the inner hopper 200 and the fixed scraper 430. Material adhering to the inner wall of the inner hopper 200 is continuously scraped off by the rotating scraper 430 and falls with the main material, thus preventing material adhesion and accumulation on the inner wall and ensuring smooth material flow.

[0033] See Figure 1 and Figure 2 In some embodiments, the supporting rotation mechanism 300 includes a plurality of inner supports 310 and a plurality of outer supports 320. For example... Figure 2 As shown, preferably, there are four inner supports 310 and four outer supports 320, which are evenly and symmetrically spaced along the circumference to ensure balanced force distribution on the inner hopper 200. The outer supports 320 are fixedly and evenly spaced on the inner wall of the outer hopper 100 by bolts or welding. Similarly, the four inner supports 310 are fixedly and evenly spaced on the outer wall of the inner hopper 200 by bolts or welding, and their installation positions precisely correspond to the outer supports 320. Each outer support 320 is positioned opposite a corresponding inner support 310, and their opposing surfaces are typically machined with arc-shaped grooves 210, which together form a mounting cavity for accommodating the ball bearings 330. When the drive mechanism 500 rotates the inner hopper 200, the inner hopper 200 transmits the rotational force to the ball bearings 330 through the inner supports 310. The ball bearing 330 then rolls within the mounting cavity formed by the inner support 310 and the outer support 320, thereby achieving stable rotation of the inner hopper 200 relative to the stationary outer hopper 100. This support method based on multiple discrete fulcrums has a compact structure, strong load-bearing capacity, and can effectively ensure the concentricity of the rotation of the inner hopper 200, preventing swaying and jamming.

[0034] See also Figure 1In some embodiments, to facilitate maintenance and extend service life, oil injection holes are provided on the side wall of the outer hopper 100 at positions corresponding to each outer support 320, and oil injection pipes 110 are connected to them. Lubricating grease can be periodically added to the mounting cavity through the oil injection pipes 110 to lubricate the ball bearings 330, thereby reducing wear and operating noise.

[0035] See also Figure 1 In some embodiments, the scraper assembly 400 further includes a scraper base 410 and a support rod 420. The scraper base 410 is a mounting base that is fixed to the outer wall of the outer hopper 100 by welding or bolting. To enhance stability, the scraper base 410 can be designed as a plate-like or block-like structure with a large contact area. The support rod 420 can be made of stainless steel or carbon steel to increase its rigidity. One end of the support rod 420 is fixedly connected to the scraper base 410 (e.g., by thread or welding). The other end of the support rod 420 extends into the internal space of the inner hopper 200. The axis of the support rod 420 is set parallel to the contour of the inner wall of the inner hopper 200 and maintains a small, constant distance from it. The scraper 430 is detachably mounted on the rod of the support rod 420 extending into the inner hopper 200 by means of bolt clamping. Because the support rod 420 is parallel to the inner wall of the inner hopper 200, the scraping edge of the scraper 430 mounted on the support rod 420 can always be in close contact with the inner wall surface of the inner hopper 200. When the drive mechanism 500 drives the inner hopper 200 to rotate, the fixed outer hopper 100 and its scraper base 410 and support rod 420 remain stationary. Therefore, the scraper 430 fixed to the end of the support rod 420 also generates relative motion with the inner wall of the inner hopper 200. The rotating inner wall continuously sweeps over the stationary scraper 430, thereby continuously and effectively scraping off the material (such as ammonium sulfate and ammonium thiocyanate crystals) adhering to the inner wall, allowing it to fall smoothly with the main material flow to the discharge port.

[0036] See also Figure 1In some embodiments, the scraper 430 can be mounted to the end of the support rod 420 via a detachable fastening mechanism. This fastening mechanism may include a connecting block located at the end of the support rod 420, having one or more threaded holes. At least one clamping bolt (not shown) passes through the threaded hole on the connecting block, and by tightening the bolt, its end clamps and secures the scraper 430 blade sandwiched in between. When the scraper 430 needs replacement due to wear from prolonged use, maintenance personnel only need to loosen the clamping bolt to remove the old scraper 430 blade, replace it with a new one, and then retighten the bolt. The entire process is simple, greatly simplifying the maintenance procedure and reducing downtime. Preferably, an elongated adjustment hole is provided on the connecting block at the end of the support rod 420. Correspondingly, a mounting hole is provided on the back of the scraper 430. After the shank of the clamping bolt passes through the mounting hole on the scraper 430 and the elongated adjustment hole on the connecting block, it is locked with a nut. When the clamping bolt is loosened (but not completely removed), the scraper 430, along with the bolt, can move back and forth axially along the support rod 420 within the range of the elongated adjustment hole. After the equipment is installed or a new scraper 430 is replaced, the clamping bolt can be loosened, and the scraper 430 can be slightly adjusted forward (towards the inner wall) to ensure that its scraping edge achieves optimal contact with the inner wall of the inner hopper 200, before tightening the bolt again. After long-term operation, even if the scraper 430 experiences slight wear, resulting in a decrease in contact, maintenance personnel do not need to immediately replace the scraper 430. Simply adjusting the scraper 430 forward a small distance using the method described above will compensate for the wear and restore a tight contact. This significantly extends the effective service life of the scraper 430 and reduces operating costs.

[0037] See also Figure 1 In some embodiments, a continuous annular groove 210 is formed in the upper region of the outer wall of the inner hopper 200 by machining. The cross-section of the groove 210 is typically arc-shaped. A plurality of ball bearings 120 are fixedly disposed at circumferential positions corresponding to the annular groove 210. The ball bearings 120 are fixed to the inner wall of the outer hopper 100 by bearing seats, with their balls 330 protruding and fitting precisely into the annular groove 210 on the outer wall of the inner hopper 200. The cooperation between the annular groove 210 and the plurality of ball bearings 120 forms an effective radial constraint on the upper end of the inner hopper 200, enhancing its rigidity and stability during rotation.

[0038] See Figure 1Some embodiments also provide a scraper assembly 400 for a silo, comprising: a scraper base 410 fixedly disposed on the outer wall of the silo; a support rod 420, one end of which is connected to the scraper base 410 and the other end of which extends into the silo; and a scraper 430 disposed on the rod of the support rod 420 extending into the silo, and the scraper 430 being in contact with the inner wall of the silo; when the inner wall of the silo rotates relative to the silo body, the scraper 430 and the inner wall of the silo generate relative movement to scrape off the material adhering to the inner wall.

[0039] See Figure 1 In some embodiments, the scraper 430 has a sheet-like structure, and the shape of its scraping edge is adapted to the contour of the inner wall of the hopper.

[0040] In summary, the inner hopper 200 of the rotating double-layer silo for the production of ammonium sulfate and ammonium thiocyanate is rotatably placed inside the outer hopper 100 via a supporting rotating mechanism 300. When the driving mechanism 500 drives the inner hopper 200 to rotate, it generates relative motion with the fixedly installed scraper 430, realizing continuous automatic scraping of the attached material, thereby avoiding blockage caused by the accumulation of material on the inner wall of the inner hopper 200 and ensuring the continuity of production.

[0041] In the description of the embodiments of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0042] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, terms such as "first," "second," and other numerical terms used herein do not imply order or sequence unless expressly indicated herein. Therefore, without departing from the teachings of the exemplary embodiments, the first element, component, region, layer, or segment discussed above may be referred to as the second element, component, region, layer, or segment.

[0043] Spatially relative terms, such as “inside,” “outside,” “below,” “below,” “down,” “above,” “up,” etc., may be used herein to describe the relationship between one element or feature illustrated in the figures and another element or feature. In addition to the orientations depicted in the figures, spatially relative terms may be intended to cover different orientations of the device in use or operation. For example, if the device in the figure is flipped, an element described as “below” or “below” other elements or features would be oriented as “above” other elements or features. Thus, the example term “below” can cover both above and below orientations. The device may be oriented in other ways (rotated 90 degrees or in other orientations), and the spatially relative descriptors used herein are interpreted accordingly.

[0044] Based on the above-described preferred embodiments of this utility model, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the technical concept of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. A rotating double-layer silo, characterized in that, include: External material storage (100); The inner hopper (200) is rotatably placed inside the outer hopper (100); A support rotation mechanism (300) is provided between the outer material bin (100) and the inner material bin (200) to support the stable rotation of the inner material bin (200) relative to the outer material bin (100); A scraper assembly (400) is disposed on the outer wall of the outer hopper (100), and the scraper (430) of the scraper assembly (400) extends into the inner hopper (200) and fits against its inner wall; The drive mechanism (500) includes a drive motor (510) and a belt (520), wherein the drive motor (510) is connected to the inner hopper (200) via the belt (520); When the drive motor (510) rotates, it drives the inner hopper (200) to rotate relative to the scraper (430) via the belt (520) to scrape off the material attached to the inner wall of the inner hopper (200).

2. The rotating double-layer silo as described in claim 1, characterized in that, The supporting rotation mechanism (300) includes: Multiple inner supports (310) are spaced apart circumferentially along the outer wall of the inner hopper (200); Multiple outer supports (320) are spaced apart circumferentially along the inner wall of the outer hopper (100), and each outer support (320) is opposite to an inner support (310) to form a ball bearing (330) mounting cavity; Multiple balls (330), each ball (330) being disposed between a pair of opposing inner supports (310) and outer supports (320); When the inner hopper (200) rotates relative to the scraper (430), the ball bearing (330) rolls within the mounting cavity.

3. The rotating double-layer silo as described in claim 2, characterized in that, An oil injection pipe (110) is provided on the outer material bin (100), and the position of the oil injection pipe (110) corresponds to the ball bearing (330).

4. The rotating double-layer silo as described in claim 2, characterized in that, The number of the plurality of inner supports (310) and the plurality of outer supports (320) is four, and they are arranged symmetrically and uniformly along the circumference.

5. The rotating double-layer silo as described in claim 1, characterized in that, The wall scraping assembly (400) also includes a scraper base (410) and a support rod (420). The scraper base (410) is fixedly installed on the outer wall of the outer hopper (100); One end of the support rod (420) is connected to the scraper base (410), and the other end extends into the inner hopper (200); and, The support rod (420) is arranged parallel to the inner wall of the inner hopper (200) so that the scraper (430) provided on the support rod (420) fits against the inner wall of the inner hopper (200).

6. The rotating double-layer silo as described in claim 5, characterized in that, The scraper (430) is detachably mounted on the support rod (420), and the connection position between the scraper (430) and the support rod (420) is adjustable to adjust the degree of contact between the scraper (430) and the inner wall of the inner hopper (200).

7. The rotating double-layer silo as described in claim 1, characterized in that, The outer wall of the inner hopper (200) is provided with an annular groove (210), and the inner wall of the outer hopper (100) is provided with a ball bearing (120). When the inner hopper (200) rotates relative to the outer hopper (100), the ball bearing (120) rotates within the groove (210).

8. A scraper assembly (400) for a silo, characterized in that, include: The scraper base (410) is fixedly installed on the outer wall of the hopper; A support rod (420) has one end connected to the scraper base (410) and the other end extending into the hopper; A scraper (430) is provided on the rod of the support rod (420) that extends into the hopper, and the scraper (430) is in contact with the inner wall of the hopper; When the inner wall of the hopper rotates relative to the hopper body, the scraper (430) moves relative to the inner wall of the hopper to scrape off the material adhering to the inner wall.

9. The wall scraping assembly (400) as claimed in claim 8, characterized in that, The scraper (430) is detachably mounted on the support rod (420), and the connection position between the scraper (430) and the support rod (420) is adjustable to adjust the degree of contact between the scraper (430) and the inner wall of the hopper.

10. The wall scraping assembly (400) as claimed in claim 8, characterized in that, The scraper (430) has a sheet-like structure, and the shape of its scraping edge is adapted to the contour of the inner wall of the hopper.

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