Blanking device for stock bin

Abstract

The discharging device comprises a storage bin and a base, a first anti-blocking mechanism is arranged in the storage bin and comprises a scraping plate tightly attached to the inner wall of the storage bin, and the scraping plate is in power connection with a rotary driving mechanism; a gate valve is mounted at a discharge port of the storage bin, a rotating disc is horizontally and rotatably arranged on the base below the discharge port, a plurality of quantitative material cavities are formed in the rotating disc in an up-down penetrating manner, the quantitative material cavities correspond to the discharge port above, and discharge ports corresponding to the quantitative material cavities are formed in the bottom, away from the discharge port side, of the base; a second anti-blocking mechanism is arranged in the quantitative material cavity, the second anti-blocking mechanism comprises a scraping ring which is horizontally and movably arranged close to the inner wall of the quantitative material cavity, and a driving assembly for driving the scraping ring to act is arranged on the base close to the discharge port. According to the device, quantitative discharging can be achieved, accumulated materials on the inner walls of the stock bin and the quantitative material cavity can be effectively cleaned, and therefore the problems of blocking, arching and the like are effectively avoided.

Description

Technical Field

[0001] The utility model belongs to the field of material bin equipment, and in particular relates to a material unloading device for a material bin. Background Art

[0002] Silos are common storage equipment in the chemical industry, mainly used for intermediate storage, system buffering, and material proportional discharge. When the material is viscous and has poor fluidity, it is easy to cause blockage or poor material discharge in the silo. Existing anti-blocking devices generally use a vibration motor structure. The vibration motor has a greater impact on the equipment due to its high frequency of use and large amplitude. It may also make the arch or blockage denser and more prone to blockage. In order to achieve quantitative discharge, a quantitative cylinder or quantitative groove is generally set under the silo to play a metering role. However, the material in the quantitative cylinder or quantitative groove still has problems of sticking to the wall and accumulation of materials, which affects the metering and discharge of materials. Utility Model Content

[0003] In order to solve the deficiencies of the prior art, the utility model aims to provide a feeding device for a silo, which can realize quantitative feeding and effectively clean the accumulated materials on the inner wall of the silo and the quantitative material chamber, thereby effectively avoiding problems such as blockage and arching.

[0004] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0005] A material unloading device for a silo comprises a storage silo and a base, wherein a first anti-blocking mechanism is arranged inside the storage silo, the first anti-blocking mechanism comprises a scraper arranged close to the inner wall of the storage silo, and the scraper is dynamically connected to a rotating drive mechanism; a plug valve is installed at the discharge port of the storage silo, a rotating disk is provided on the base below the discharge port for horizontal rotation, a plurality of quantitative material cavities are penetrated through the rotating disk from top to bottom, the quantitative material cavities correspond to the discharge port above, and a discharge port corresponding to the quantitative material cavities is arranged at the bottom of the base away from the discharge port; a second anti-blocking mechanism is arranged in the quantitative material cavity, the second anti-blocking mechanism comprises a scraper ring arranged for horizontal movement close to the inner wall of the quantitative material cavity, and a driving component for driving the scraper ring to move is provided on the base near the discharge port.

[0006] Preferably, the driving assembly includes a guide block, which is fixed on a base on the side of the rotating disk, and the guide block is provided with an upwardly inclined inclined surface along the rotation direction of the rotating disk; the scraper ring in the quantitative material chamber is fixedly connected to the inner end of a connecting rod with an inverted U-shaped design, and the outer end of the connecting rod is vertically movably arranged outside the rotating disk after passing the upper opening of the quantitative material chamber; a fixed block is fixed on the outer wall of the rotating disk, and the outer end of the connecting rod is movably inserted into the through hole of the fixed block, and a first limit plate is fixed at the end head of the outer end of the connecting rod, and a first spring is sleeved on the outer end of the connecting rod, and the two ends of the first spring are respectively abutted against the first limit plate and the fixed block, and the first limit plate is slidably abutted against the inclined surface of the guide block.

[0007] Preferably, a sliding roller is installed on the first limiting plate, and the sliding roller abuts against the inclined surface of the guide block.

[0008] Preferably, a slide groove is vertically opened on the inner wall of the quantitative material chamber, and the inner end of the connecting rod is slidably clamped in the slide groove.

[0009] Preferably, the rotary drive mechanism includes a first motor, a rotating shaft and a rotating rod. The first motor is installed on a bracket above the storage bin. The rotating shaft connected to the power of the first motor is vertically arranged in the center of the storage bin. One end of the rotating rod is vertically fixed to the rotating shaft, and the other end is fixed to the scraper.

[0010] Preferably, the scraper includes a base plate and a scraper, the base plate is spaced a certain distance from the inner wall of the storage bin, a slot is provided on the end face of the base plate, the scraper is slidably mounted in the slot, the end of the scraper outside the slot abuts against the inner wall of the storage bin, a second spring is fixed in the slot away from the opening side, and the second spring abuts against the scraper.

[0011] Preferably, a second limit plate with a width greater than the slot opening is fixedly disposed at the inner end of the scraper, and the second spring abuts against the second limit plate.

[0012] Preferably, the first anti-blocking mechanism further includes a paddle installed at the lower end of the rotating shaft at the discharge port of the storage bin.

[0013] The beneficial effects of the utility model are:

[0014] 1. The first motor of the utility model drives the scraper to rotate closely against the inner wall of the storage bin through the rotating shaft and the rotating rod, so as to effectively break and scrape away the arched materials adhering to the inside of the storage bin, and a paddle is installed at the lower end of the rotating shaft at the discharge port of the storage bin, which can effectively break up the blocked materials at the discharge port, thereby significantly improving the unloading efficiency of the storage bin and achieving better anti-blocking effect.

[0015] 2. Under the action of the second spring force, the scraper will effectively contact the inner wall of the storage bin, thereby effectively scraping off the accumulated material adhering to the inner wall of the storage bin and clearing the blockage.

[0016] 3. When the quantitative material chamber filled with materials is about to rotate to the discharge port, as the rotating disk rotates, the sliding roller contacts the inclined surface of the guide block and climbs along the inclined surface, driving the scraper ring in the quantitative material chamber to move upward through the connecting rod and compressing the first spring. When the quantitative material chamber is compared with the discharge port below to discharge all the materials, the scraper ring is above the quantitative material chamber. As the rotating disk continues to rotate, the sliding roller is separated from the inclined surface. Under the action of the first spring elastic force, the scraper ring, connecting rod, etc. are quickly reset downward, so that the scraper ring can effectively scrape off the residual accumulated material on the inner wall of the quantitative material chamber, and the effect of removing the accumulated material is better. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural diagram of the utility model;

[0018] Figure 2 This is a structural diagram of the quantitative material chamber in the rotating disk of the utility model;

[0019] Figure 3 This is a schematic diagram of the installation of the sliding roller and the guide block of the utility model;

[0020] Figure 4 This is a structural diagram of the first anti-blocking mechanism of the utility model;

[0021] Figure 5 It is a cross-sectional view of the scraper of the utility model. DETAILED DESCRIPTION

[0022] The principles and features of the present invention are described below in conjunction with the accompanying drawings. The examples given are only used to explain the present invention and are not intended to limit the scope of use of the present invention.

[0023] like Figure 1-5 As shown, the utility model proposes a material bin unloading device, including a storage bin 1 and a base 4. A first anti-blocking mechanism is provided inside the storage bin 1. The first anti-blocking mechanism includes a paddle 25 and a scraper 24 arranged close to the inner wall of the storage bin 1. The scraper 24 is connected to the rotation drive mechanism. The rotation drive mechanism includes a first motor 21, a rotating shaft 22 and a rotating rod 23. The first motor 21 is downwardly mounted on the bracket 11 above the storage bin 1. The rotating shaft 22 is connected to the first motor 21. The rotating shaft 22 is vertically arranged in the center of the storage bin 1. One end of the rotating rod 23 is vertically fixed to the rotating shaft 22, and the other end is fixed to the scraper 24. The shape of the scraper 24 matches the inner wall of the storage bin 1, and slides against the inner wall of the storage bin 1. The first motor 21 drives the scraper 24 to rotate closely against the inner wall of the storage bin 1 through the rotating shaft 22 and the rotating rod 23, so as to effectively break up and scrape away the arched materials adhering to the inside of the storage bin 1, and a paddle 25 is also installed at the lower end of the rotating shaft 22 at the discharge port of the storage bin 1. The paddle 25 can effectively break up the blocked materials at the discharge port, thereby significantly improving the unloading efficiency of the storage bin 1 and achieving a better anti-blocking effect.

[0024] Specifically, the scraper 24 includes a base plate 241 and a scraper 242. The base plate 241 is spaced a certain distance from the inner wall of the storage bin 1. A slot 2410 is provided on the end surface of the base plate 241. The scraper 242 is slidably mounted in the slot 2410. A second limiting plate 243 is fixed to the inner end of the scraper 242 in the slot 2410. The end of the scraper 242 outside the slot 2410 abuts against the inner wall of the storage bin 1. The second limiting plate 243 is slidably mounted in the inner cavity of the slot 2410, and its width is greater than the opening of the slot 2410, so that the movement of the scraper 242 can be limited to prevent it from leaving the slot 2410. A second spring 244 is fixed to the side of the slot 2410 away from the opening, and the second spring 244 abuts against the second limiting plate 243. Under the elastic force of the second spring 244 , the scraper 242 will effectively come into contact with the inner wall of the storage bin 1 , thereby effectively scraping off the accumulated materials adhering to the inner wall of the storage bin 1 and clearing the blockage.

[0025] A gate valve 12 is installed at the discharge port of the storage bin 1, and the discharge amount of the discharge port is controlled by the gate valve 12. A rotating disk 3 is horizontally rotated on the base 4 below the discharge port, and the rotating disk 3 adopts a turntable structure that rotates at the center of a circle driven by a motor commonly used in the prior art. A plurality of quantitative material chambers 30 are arranged at equal angles with the center of the circle as the center on the rotating disk 3, and the quantitative material chamber 30 on one side corresponds to the discharge port above, and a corresponding discharge port 41 is installed at the bottom of the base 4 of the quantitative material chamber 30 on the other side away from the discharge port; the material in the storage bin 1 falls into the quantitative material chamber 30 from the discharge port under the control of the gate valve 12, and when the rotating disk 3 rotates to the discharge port 41 under the rotation of the rotating disk 3, the material in the quantitative material chamber 30 can be sent to the next process from the discharge port 41, thereby realizing the quantitative unloading and transportation of the material.

[0026] A second anti-blocking mechanism is provided in the quantitative material chamber 30, and the second anti-blocking mechanism includes a scraper ring 61 that is horizontally movably arranged close to the inner wall of the quantitative material chamber 30, and a driving component that drives the scraper ring 61 to move is provided on the base 4 near the discharge port 41. The driving component includes a guide block 5, which is fixed on the base 4 near the discharge port 41 on the side of the rotating disk 3, and an upward inclined surface 50 is provided on the guide block 5 along the rotation direction of the rotating disk 3. The scraper ring 61 in the quantitative material chamber 30 is fixedly connected to the inner end of the connecting rod 62 with an inverted U-shaped design, and a slide groove 301 is vertically opened on the inner wall of the quantitative material chamber 30. The vertical part of the connecting rod 62 in the quantitative material chamber 30 is slidably clamped in the slide groove 301, so that the up and down movement of the connecting rod 62 can be limited.

[0027] After the connecting rod 62 bypasses the upper opening of the quantitative material chamber 30, its vertical end outside the quantitative material chamber 30 is movably arranged; a fixed block 31 is fixedly arranged on the outer wall of the rotating disk 3, and the vertical part of the outer end of the connecting rod 62 is movably arranged in the through hole of the fixed block 31, which can further limit the upward and downward movement of the connecting rod 62. A first limiting plate 64 is fixedly arranged at the end of the vertical part of the outer end of the connecting rod 62, and a first spring 63 is sleeved on the outer end of the connecting rod 62. The two ends of the first spring 63 are respectively abutted against the first limiting plate 64 and the fixed block 31, and under the action of the elastic force of the first spring 63, a restoring force can be provided for the connecting rod 62 and the scraper ring 61. A sliding roller 65 is installed on the first limiting plate 64. When the rotating disk 3 rotates, the sliding roller 65 can be supported on the inclined surface 50 of the guide block 5 and climb along the inclined surface 50. When the quantitative material chamber 30 filled with materials is about to rotate to the discharge port 41, as the rotating disk 3 rotates, the sliding roller 65 contacts the inclined surface 50 of the guide block 5 and climbs along the inclined surface 50, and drives the scraper ring 61 in the quantitative material chamber 30 to move upward through the connecting rod 62, and compresses the first spring 63. When the quantitative material chamber 30 is compared with the discharge port 41 below to discharge all the materials, the scraper ring 61 is above the quantitative material chamber 30. As the rotating disk 3 continues to rotate, the sliding roller 65 disengages from the inclined surface 50. Under the elastic force of the first spring 63, the scraper ring 61, the connecting rod 62, etc. are quickly reset downward, so that the scraper ring 61 can effectively scrape off the residual accumulated material on the inner wall of the quantitative material chamber 30, and the effect of removing the accumulated material is better.

[0028] When the utility model is used, the gate valve 12 is controlled to quantitatively discharge material into the quantitative material chamber 30 of the rotating disk 3. As the rotating disk 3 rotates, the material in the quantitative material chamber 30 is sent to the discharge port 41 for discharge. The storage chamber 30 is used to break up the accumulated material and clear the blockage through the rotation of the paddle 25 and the scraper 24 of the first anti-blocking mechanism. The material adhered to the quantitative material chamber 30 is effectively scraped off by the scraper ring 61 through the cooperation of the sliding roller 65, the connecting rod 62, the scraper ring 61 and the inclined surface 50 on the guide block 5 after the material is discharged, using the elastic force of the first spring 63 to avoid the accumulation and blockage of the material in the quantitative material chamber 30.

[0029] Obviously, the embodiments described above are only some embodiments of the present application, rather than all embodiments. The preferred embodiments of the present application are given in the accompanying drawings, but they do not limit the patent scope of the present application. The present application can be implemented in many different forms. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the present application more thorough and comprehensive. Although the present application is described in detail with reference to the aforementioned embodiments, for those skilled in the art, it is still possible to modify the technical solutions recorded in the aforementioned specific implementation methods, or to perform equivalent replacement of some of the technical features therein. Any equivalent structure made using the contents of the specification and drawings of this application, directly or indirectly used in other related technical fields, is similarly within the scope of patent protection of this application.

Claims

1. A material unloading device for a silo, comprising a storage silo and a base, characterized in that: A first anti-blocking mechanism is provided inside the storage bin, and the first anti-blocking mechanism includes a scraper arranged close to the inner wall of the storage bin, and the scraper is dynamically connected to the rotating drive mechanism; a plug valve is installed at the discharge port of the storage bin, and a rotating disk is provided on the base below the discharge port for horizontal rotation, and a plurality of quantitative material cavities are penetrated from top to bottom of the rotating disk, and the quantitative material cavities correspond to the discharge port above, and a discharge port corresponding to the quantitative material cavity is installed at the bottom of the base away from the discharge port; a second anti-blocking mechanism is provided in the quantitative material cavity, and the second anti-blocking mechanism includes a scraper ring arranged for horizontal movement close to the inner wall of the quantitative material cavity, and a driving component for driving the scraper ring to move up and down is provided on the base near the discharge port.

2. The material discharging device for a silo according to claim 1, characterized in that: The driving assembly includes a guide block, which is fixed on a base on the side of the rotating disk, and an upwardly inclined inclined surface is provided on the guide block along the rotation direction of the rotating disk; the scraper ring in the quantitative material chamber is fixedly connected to the inner end of a connecting rod with an inverted U-shaped design, and the outer end of the connecting rod is vertically movably arranged outside the rotating disk after passing the upper opening of the quantitative material chamber; a fixed block is fixed on the outer wall of the rotating disk, and the outer end of the connecting rod is movably inserted into the through hole of the fixed block, and a first limit plate is fixed at the end of the outer end of the connecting rod, and a first spring is sleeved on the outer end of the connecting rod, and the two ends of the first spring are respectively abutted against the first limit plate and the fixed block, and the first limit plate is slidably abutted against the inclined surface of the guide block.

3. The material discharging device for a silo according to claim 2, characterized in that: A sliding roller is installed on the first limiting plate, and the sliding roller abuts against the inclined surface of the guide block.

4. The material discharging device for a silo according to claim 2, characterized in that: A slide groove is vertically provided on the inner wall of the quantitative material chamber, and the inner end of the connecting rod is slidably clamped in the slide groove.

5. The material discharging device for a silo according to claim 1, characterized in that: The rotary drive mechanism includes a first motor, a rotating shaft and a rotating rod. The first motor is installed on a bracket above the storage bin. The rotating shaft connected to the power of the first motor is vertically arranged in the center of the storage bin. One end of the rotating rod is vertically fixed to the rotating shaft, and the other end is fixed to the scraper.

6. The material discharging device for a silo according to claim 1, characterized in that: The scraper includes a base plate and a scraper. The base plate is spaced a certain distance from the inner wall of the storage bin. A slot is provided on the end surface of the base plate. The scraper is slidably mounted in the slot. The end of the scraper outside the slot abuts against the inner wall of the storage bin. A second spring is fixed in the slot away from the opening side, and the second spring abuts against the scraper.

7. The material discharging device for a silo according to claim 6, characterized in that: A second limiting plate having a width greater than that of the slot opening is fixedly disposed at the inner end of the scraper, and the second spring abuts against the second limiting plate.

8. The material bin unloading device according to claim 6, characterized in that: The first anti-blocking mechanism also includes a paddle installed at the lower end of the rotating shaft at the discharge port of the storage bin.

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