Anti-blocking discharge pipe for cellulose ether product storage device

Abstract

According to the anti-blocking discharging pipe for the cellulose ether product storage device, block-shaped parts, formed due to damp and water absorption, of cellulose ether products stored in the storage device can be more fully crushed and refined, and the situation that powder materials which are originally loose above are extruded is avoided; and new caking parts are prevented from being further generated in the storage device, so that it is guaranteed that the device can continuously and stably discharge materials outwards. The anti-blocking discharging pipe comprises an outer pipe body made of a rigid material, a hollow mounting cavity is formed in the outer pipe body, and an inner pipe body made of a flexible material is arranged in the hollow mounting cavity; a pinch-off separation mechanism for separating the internal space of the inner pipe body is arranged between the outer pipe body and the inner pipe body; a discharging pipe opening is further connected and installed below the outer pipe body and the inner pipe body, and the discharging pipe opening comprises a vibration discharging section located on the upper portion and a discharging guiding section located on the lower portion.

Description

Technical Field

[0001] The invention relates to the field of components of chemical storage devices, in particular to an anti-clogging discharge pipe for a cellulose ether product storage device. Background Art

[0002] Many powdered products require specialized storage silos for storage and discharge due to their fluidity, moisture absorption, and susceptibility to airflow or oxidation. In the food industry, flour, milk powder, sugar, starch, and salt must be protected from moisture and agglomeration while also supporting automated production. In the chemical industry, powders such as cement, lime, gypsum, fly ash, and calcium carbonate require a dry, sealed environment, with considerations for dust and conveying. Pharmaceutical powders and starch capsule powders require strict hygiene and precise control. In the plastics industry, plastic powders and additive powders must be protected from moisture and oxidation, ensuring precise metering. Metal powders such as iron and aluminum powders must also be protected from moisture, oxidation, and explosion. Furthermore, the metal powder industry, putty powder and tile adhesive powder in the building materials industry, as well as fertilizer and pesticide powders, also require specialized silos to ensure quality, safety, and ease of production. To address these challenges, a range of specialized storage equipment has emerged to facilitate the storage and discharge of various types of powdered products.

[0003] For example, a silo with an anti-blocking function disclosed in the Chinese utility model patent application document with application number CN202320943819.6 is divided into an upper silo and a lower silo connected to the lower end of the upper silo. The upper and lower silos are internally interconnected to form a silo space. The lower end of the lower silo has a discharge port, and an arch-breaking component is provided in the silo space above the discharge port. The advantages of this utility model are that it has a simple and effective structure, improves processing efficiency, and can crush agglomerated powder materials falling from the top to the bottom of the silo, making it less likely to accumulate in the silo, thereby preventing the powder materials from clogging and arching in the silo space.

[0004] For example, a powder coating discharging and bagging assembly with an anti-blocking function is disclosed in the Chinese invention patent document with application number CN202310000547.0, which includes a material port adjusting sleeve arranged in the material silo discharge port, a deformation zone is provided between the material port adjusting sleeve and the inner side wall of the discharge port, and a lifting frame is provided at the end of the material port adjusting sleeve away from the discharge port, and a separation bag connected to the material silo at the end of the lifting frame away from the material port adjusting sleeve. The present invention can push and disperse the material accumulated at the bottom of the silo through the cooperation of the material port adjusting sleeve and the lifting bag ring, and at the same time temporarily expand the diameter of the material when it is discharged to make the material discharge more convenient. During implementation, the material is separated into two streams, upper and lower, by the separation bag, and then the lifting bag ring will be pushed by the expanded expansion table to increase its own volume to lift the material at the material silo discharge port. When the material is lifted, the material port adjusting sleeve will be pulled toward the inner side wall of the discharge port to temporarily expand the discharge port, thereby reducing the chance of blockage.

[0005] Among the various types of powdered materials currently requiring storage, cellulose ether products are a key category. Due to the multiple hydroxyl groups in their molecular structure, cellulose ethers are highly hygroscopic and readily absorb moisture from the air. This makes them more demanding in terms of sealing and isolation than conventional powder products. Once exposed to moisture, they rapidly clump, impairing fluidity and making them difficult to transport and use in production. While mild moisture exposure can be restored to normal performance in most applications, the agglomeration can severely hinder material discharge from storage devices. In most applications and storage scenarios, due to the complexity of the external environment and the design and manufacturing of storage devices, improving local sealing to prevent moisture from cellulose ethers during storage and transportation is difficult and costly, making it unsuitable for most industrial sound field applications. Furthermore, when repeatedly discharging highly hygroscopic powder materials, such as those mentioned above, the repeated opening of the discharge opening can easily introduce moisture from the outside air into the storage device through the storage device opening. If a powder coating discharging and bagging assembly with an anti-blocking function similar to the above-mentioned one is used for processing, it is considered that when the local mechanism is pushed up, it may cause a lifting and squeezing effect on the powdered cellulose ether product, causing the upper powder to be squeezed and fit more tightly to the inner wall surface, making it more difficult for the upper part of the cellulose ether powder material to fall down and be discharged.

[0006] In response to the above-mentioned problems, the present invention provides an anti-clogging discharge pipe for a cellulose ether product storage device, which can achieve more complete crushing and refinement of the lumps of cellulose ether products stored inside the storage device due to moisture absorption, avoid squeezing the originally loose powder material above, and avoid further generation of new lumps inside the storage device, thereby ensuring that the device can continuously and stably discharge materials. Summary of the Invention

[0007] The present invention provides an anti-clogging discharge pipe for a cellulose ether product storage device, which can achieve more complete crushing and refinement of the lumps of cellulose ether products stored in the storage device due to moisture absorption, avoid squeezing of the originally loose powder material above, and avoid further generation of new lumps in the storage device, thereby ensuring that the device can continuously and stably discharge materials.

[0008] The above technical objectives of the present invention are achieved through the following technical solutions: A blockage-resistant discharge pipe for a cellulose ether product storage device comprises an outer tube body made of a rigid material, a hollow installation cavity extending vertically therethrough formed inside the outer tube body, and an inner tube body made of a flexible material disposed within the hollow installation cavity; a pinch-off separation mechanism is disposed between the outer tube body and the inner tube body for dividing the internal space of the inner tube body into a temporary storage cavity at the top and a discharge cavity at the bottom; a discharge pipe opening is also connected and installed below the outer tube body and the inner tube body, and the discharge pipe opening comprises a vibrating discharge section located at the top and a discharge guide section located at the bottom.

[0009] As a preferred embodiment of the present invention, the pinch-off separation mechanism includes a first driving unit fixedly connected to the inner wall of the outer tube body and a separation support portion that can be retracted and squeezed by the first driving unit; when the separation support portion is retracted and squeezes the inner tube body, the inner tube body can be deformed, so that the temporary storage chamber is wide at the top and narrow at the bottom, and the discharge chamber is narrow at the top and wide at the bottom.

[0010] As a preferred embodiment of the present invention, an arc-shaped extrusion surface is formed on the inner side of the partitioning and supporting portion, and at least two of the partitioning and supporting portions are arranged on the outer side of the inner tube body and are opposite to each other.

[0011] As a preferred embodiment of the present invention, an annular connecting portion made of elastic material is further connected between the inner tube body and the outer tube body to improve the stability of the inner tube body during the discharge operation.

[0012] As a preferred embodiment of the present invention, a crushing sheet portion protruding inwardly is further provided on the inner wall surface of the inner tube body.

[0013] As a preferred embodiment of the present invention, the inner material layer of the vibrating discharge section is made of flexible material and has a cone shape that gradually shrinks from top to bottom, and a second driving unit for vibrating and slapping the inner material layer is provided on the outer side of the inner material layer.

[0014] As a preferred embodiment of the present invention, a supporting column capable of performing vertical lifting motion and puncturing and crushing agglomerated powder products is further provided on the inner wall surface of the discharge guide section.

[0015] As a preferred embodiment of the present invention, a pipe opening blocking cover plate is further installed at the bottom of the discharge pipe opening, and the pipe opening blocking cover plate is connected to the discharge pipe opening via a threaded screwing structure.

[0016] In summary, the present invention can achieve the following multiple beneficial effects: The anti-clogging discharge pipe for the cellulose ether product storage device provided in the solution of the present invention can achieve more complete crushing and refinement of the lumps of cellulose ether products stored in the storage device due to moisture absorption, avoid squeezing the originally loose powder material above, and prevent the further formation of new lumps in the storage device, thereby ensuring that the device can continuously and stably discharge materials. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A schematic diagram of the internal cross-section of the three-dimensional structure of an anti-clogging discharge pipe of a cellulose ether product storage device; Figure 2 A schematic diagram of the structure of an anti-clogging discharge pipe of a cellulose ether product storage device in a front cross-sectional view; Figure 3 The part of the partition mechanism that is pinched off is viewed from a top-down perspective.

[0018] In the picture: 1——outer tube body, 101——hollow installation cavity; 2 - inner tube body, 201 - temporary storage chamber, 202 - discharge chamber, 2021 - crushing sheet part; 3 - pinch-off separation mechanism, 301 - first driving unit, 302 - separation support portion; 4——Discharge pipe opening; 5 - vibration discharge section, 501 - inner material layer, 502 - second drive unit; 6——discharging guide section, 601——support column; 7 - annular connection; 8——Pipe mouth blocking cover. DETAILED DESCRIPTION

[0019] The following specific embodiments are merely explanations of the present invention and are not limitations of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to the embodiments as needed. However, as long as they are within the scope of the claims of the present invention, they are protected by patent law.

[0020] This solution is achieved through the following technical means: Example: In this example, a clogging-resistant discharge pipe for a cellulose ether product storage device is provided. The discharge pipe can achieve more complete crushing and refinement of the lumps of cellulose ether products stored in the storage device due to moisture absorption, avoid squeezing the loose powder material above, and avoid further formation of new lumps inside the storage device, thereby ensuring that the device can continuously and stably discharge materials.

[0021] The discharge pipe equipment product is installed and connected to the lower end of the tank storage device in which the cellulose ether product is stored. For the description of its overall structural layout, please refer to the attached manual. Figure 1 The structure shown is temporarily explained. First, the structure of the anti-clogging discharge pipe includes an outer tube body 1 made of technical materials and arranged on the outside. The overall shape of the outer tube body 1 is cylindrical, and a hollow installation cavity 101 that passes through the upper and lower parts is formed inside the outer tube body 1. Inside the hollow installation cavity 101 is an inner tube body 2 made of a flexible material such as rubber or silicone. The internal space of the inner tube body 2 is connected to the storage device, so that the cellulose ether product in the storage device can enter the internal space of the inner tube body 2 downward under the action of its own weight. A discharge pipe mouth 4 is also connected and installed below the outer tube body 1 and the inner tube body 2, refer to the attached manual. Figure 1 and 2 In the structure shown, the discharge spout 4 includes a vibrating discharge section 5 located at the top and a discharge guide section 6 located at the bottom. To prevent uncontrolled downward flow of cellulose ether product, which could lead to leakage and contamination, when discharge is not required, a spout barrier cover 8 can be installed at the bottom of the discharge spout 4. This spout barrier cover 8 is connected to the discharge spout 4 via a threaded connection, allowing its upper surface to effectively support and limit the powdered product exiting the spout, preventing leakage. It also prevents external moisture from being drawn into the storage device through the opening when the spout is sealed, potentially contaminating the powdered cellulose ether product.

[0022] The aforementioned vibrating discharge section 5 primarily functions to impart a slapping and shaking effect to the powdered cellulose ether product material supported above it, thereby loosening the material and allowing it to fall more smoothly downward. The discharge guide section 6, on the other hand, is shaped like a vertically extending cylindrical tube, primarily for connection to other conveying pipelines or the feed inlet of another transport or processing equipment below. Specifically, the vibrating discharge section 5 comprises an inner material layer 501 made of a flexible material, such as rubber, and having a tapered shape that gradually tapers from top to bottom. A second drive unit 502 is disposed on the outer side of the inner material layer 501 for vibrating and slapping the material. Specifically, the second drive unit 502 can be a micro-servo motor capable of continuous rotation when powered. By attaching an eccentric wheel or eccentric protrusion to the motor's rotary output shaft, the intermittent slapping effect on the bottom surface of the inner material layer 501 can be achieved. At this time, the movement transmitted and acting on the inner material layer 501 is an alternating upward squeezing and downward relaxing action.

[0023] As the most important structural improvement point of the present patent application scheme based on the existing discharge pipe, a pinching and separating mechanism 3 is provided between the outer tube body 1 and the inner tube body 2. Specifically, the mechanism includes a first driving unit 301 connected and fixed to the inner wall of the outer tube body 1 and a separating support portion 302 that can be retracted and squeezed into the inner tube body 2 under the drive of the first driving unit 301. Figure 2 and 3 As shown, the first driving unit 301 here can be a telescopic supporting cylinder device arranged in the horizontal direction, and its output end extending in the horizontal direction is connected to a semicircular ring-shaped separating supporting portion 302. Figure 3 The structure shown in the top view is that a separating support portion 302 of the aforementioned structural form is provided on each side of the inner tube body 2, and the two separating support portions 302 are in a state of facing each other. It should also be noted here that the height position at which the separating support portion 302 is installed in the vertical direction is located in the middle part of the inner tube body 2. At the same time, in order to avoid the wear and damage to the inner tube body 2 caused by the movement of the separating support portions 302 on both sides repeatedly approaching each other and squeezing the inner tube body 2, the inner wall surface of the separating support portion 302 can be designed as an arc-shaped structure, so that the inner side of the separating support portion 302 is formed with an arc-shaped extrusion surface, thereby playing an effective protective role on the inner tube body 2 during the contact and abutment process of the two parts, thereby improving the long-term working reliability and durability of the anti-blocking discharge pipe.

[0024] At this time, under the aforementioned structural design, when the two side partitioning supports 302, driven by the cylinder of the seat first drive unit 301, approach each other and retract to squeeze the inner tube 2, the inner tube 2 will deform under the effect of this force. At this time, the internal space of the inner tube 2 will be divided into two parts: the upper temporary storage chamber 201 and the lower discharge chamber 202. The temporary storage chamber 201 is wide at the top and narrow at the bottom, while the discharge chamber 202 is narrow at the top and wide at the bottom. In this structure, even if the two side partitioning supports 302 do not completely block and isolate the temporary storage chamber 201 from the discharge chamber 202, they can indeed reduce the squeezing effect of the vibrating discharge section 5 below on the cellulose ether product above, preventing the powder material in the temporary storage chamber 201 from being squeezed and becoming denser, thereby improving the smoothness of the discharge process. On the other hand, this can also minimize the problem of moisture already absorbed in the raw material near the nozzle moving upward due to the vibration and dispersing into more raw material, causing the moisture to stick together. At this time, when the partitioning support portions 302 on both sides open and close at regular intervals, they can tap and loosen and break up the cellulose ether product that has initially formed clumps due to water absorption at the nozzle.

[0025] Of course, in this embodiment, only a pair of partitioning and supporting portions 302 arranged on both sides of the inner tube body 2 is selected as an implementation method. However, according to actual working requirements, a structure of multiple partitioning and supporting portions 302 arranged around the outer side of the inner tube body 2 can also be designed to achieve more precise regulation and control of the discharge process of the powdered cellulose ether product raw material.

[0026] As a preferred structure, in the present application, an annular connecting portion 7 made of elastic rubber material is also connected between the inner tube body 2 and the outer tube body 1, which is used to improve the stability of the inner tube body 2 itself during the discharge process and reduce the jitter and noise generated during the blanking process.

[0027] In addition, the inventors have also considered that in the process of using the aforementioned pinch-off separation mechanism 3 to retract and squeeze to divide the internal space of the inner tube body 2, although the discharge cavity 202 located below is narrow at the top and wide at the bottom, the cellulose ether product raw material can fall downward relatively smoothly under the action of gravity, but it will inevitably squeeze the originally loose powder to form a relatively dense block structure. In order to solve the problem introduced, refer to the attached manual. Figure 3As shown, in this embodiment, a crushing sheet 2021 that protrudes inward is also provided on the inner wall surface of the inner tube body 2. The crushing sheet 2021 is made of hard plastic or metal and is in the shape of a thin sheet extending in the vertical direction. At this time, as the inner wall surface of the inner tube body 2 is squeezed and moves inward, the crushing sheet 2021 will also move inward and break the denser block material into smaller block structures. As the aforementioned separating support portion 302 moves outward and resets, the inner tube body 2 will return to its original state. At this time, the several smaller block structures of raw materials that have been separated can be discharged more smoothly under the action of their own gravity.

[0028] Furthermore, to prevent the cellulose ether product raw material from still having small lumps of material at the discharge nozzle 4 from abutting against each other and causing poor downward flow, in this embodiment, a supporting column 601 is further provided on the inner wall of the discharge guide section 6. The supporting column 601 is capable of vertically ascending and descending to puncture and break up the agglomerated powdered product. The top of the supporting column 601 has a spike-like conical structure and can be vertically ascended and descended by a small cylinder or motor, thereby further breaking up the agglomerated powdered material above, thereby improving the discharge rate and stability.

[0029] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in the present invention, and such modifications or substitutions are intended to be within the scope of protection of the present invention. Therefore, the scope of protection of the present invention shall be subject to the scope of protection of the claims.

Claims

1. A blockage-resistant discharge pipe for a cellulose ether product storage device, characterized in that: The invention comprises an outer tube body (1) made of a rigid material, wherein a hollow installation cavity (101) extending vertically is formed inside the outer tube body (1), and an inner tube body (2) made of a flexible material is arranged inside the hollow installation cavity (101); a pinching and separating mechanism (3) is arranged between the outer tube body (1) and the inner tube body (2) for separating the internal space of the inner tube body (2) into two parts: an upper temporary storage cavity (201) and a lower discharge cavity (202); and a discharge pipe opening (4) is connected and installed below the outer tube body (1) and the inner tube body (2), and the discharge pipe opening (4) comprises a vibration discharge section (5) located above and a discharge guide section (6) located below.

2. The anti-clogging discharge pipe for a cellulose ether product storage device according to claim 1, characterized in that: The pinch-off separation mechanism (3) comprises a first driving unit (301) connected and fixed to the inner wall of the outer tube body (1) and a separation support portion (302) capable of retracting and squeezing the inner tube body (2) under the drive of the first driving unit (301); when the separation support portion (302) retracts and squeezes the inner tube body (2), the inner tube body (2) can be deformed, so that the temporary storage chamber (201) is wide at the top and narrow at the bottom, while the discharge chamber (202) is narrow at the top and wide at the bottom.

3. The anti-clogging discharge pipe for a cellulose ether product storage device according to claim 2, characterized in that: An arc-shaped extrusion surface is formed on the inner side of the separating support portion (302), and at least two separating support portions (302) are arranged on the outer side of the inner tube body (2) and are arranged opposite to each other.

4. The anti-clogging discharge pipe for a cellulose ether product storage device according to claim 3, characterized in that: An annular connecting portion (7) made of elastic material is also provided between the inner tube body (2) and the outer tube body (1) to improve the stability of the inner tube body (2) during the discharge operation.

5. The anti-clogging discharge pipe for a cellulose ether product storage device according to claim 4, characterized in that: A crushing sheet portion (2021) protruding inward is also provided on the inner wall surface of the inner tube body (2).

6. The anti-clogging discharge pipe for a cellulose ether product storage device according to claim 5, characterized in that: The inner material layer (501) of the vibrating discharge section (5) is made of a flexible material and is in a cone shape that gradually contracts from top to bottom. A second driving unit (502) for vibrating and slapping the inner material layer (501) is provided on the outer side of the inner material layer (501).

7. The anti-clogging discharge pipe for a cellulose ether product storage device according to claim 6, characterized in that: A supporting column (601) capable of vertically ascending and descending motion and piercing and crushing agglomerated powdered products is also provided on the inner wall surface of the discharge guide section (6).

8. The anti-clogging discharge pipe for a cellulose ether product storage device according to claim 7, characterized in that: A pipe opening blocking cover plate (8) is also installed at the bottom of the discharge pipe opening (4), and the pipe opening blocking cover plate (8) is connected to the discharge pipe opening (4) via a threaded screwing structure.

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