Unloading and feeding equipment

Abstract

The present invention relates to the technical field of conveying equipment, and provides a discharging and feeding equipment, comprising: a shell, a feeding screw and an anti-stuck material structure, wherein a feed port is provided on the shell, a feeding cavity is constructed in the shell, and a buffer zone is provided in the feeding cavity; the feeding screw is located in the feeding cavity, a feeding channel is provided between the feeding screw and the feeding port, and the feeding channel and the buffer zone are arranged in parallel along the feeding direction of the feeding screw; the anti-stuck material structure is located between the feeding channel and the buffer zone, and the anti-stuck material structure moves to adjust the communication range between the feeding channel and the buffer zone. The discharging and feeding equipment provided by the present invention can solve the problem of the feeding screw being locked due to granular materials, and has a novel and practical structure, is simple to manufacture, has a low cost, and has a long service life.

Description

Technical Field

[0001] The invention relates to the technical field of conveying equipment, in particular to unloading and feeding equipment. Background Art

[0002] In current industrial production, it is often necessary to control the feeding, discharging and conveying of solid materials (including powders and granules, etc.). Among them, spiral feeding and discharging is a common conveying method; because granules often get stuck between the feeding screw and the feed port, causing the screw to lock, the existing spiral feeding and discharging device is suitable for feeding and discharging powders, but difficult to be used for feeding or discharging granules. In addition, some feeding and discharging processes also require airtight oxygen isolation and cooling of materials, such as preventing oxygen from entering the high-temperature furnace and burning carbonaceous components and preventing the discharged materials from overheating and scalding the packaging bags. However, the existing unloading and feeding equipment does not have this function. Summary of the invention

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention proposes a material unloading and feeding device, which can solve the problem of the feeding screw being locked due to the granular material, as well as the problems of oxygen-isolating sealing and material cooling, and has a novel and practical structure, is simple to manufacture, has a low cost, and has a long service life.

[0004] The unloading and feeding equipment according to the first embodiment of the present invention comprises:

[0005] A shell body, on which a feed port is provided, a feed cavity is constructed inside the shell body, and a buffer zone is provided inside the feed cavity;

[0006] A feeding screw is located in the feeding cavity, a feeding channel is provided between the feeding screw and the feeding port, and the feeding channel and the buffer zone are arranged in parallel along the feeding direction of the feeding screw;

[0007] The anti-stuck material structure is located between the feed channel and the buffer zone, and the anti-stuck material structure moves to adjust the communication range between the feed channel and the buffer zone.

[0008] According to an embodiment of the present invention, the anti-jamming structure is rotatably connected to the shell, and a reset member is further connected between the anti-jamming structure and the shell.

[0009] According to one embodiment of the present invention, the reset member is a spring or a cylinder.

[0010] According to an embodiment of the present invention, the anti-stuck material structure is rotatably connected to the housing at one end away from the feeding screw.

[0011] According to an embodiment of the present invention, one end of the reset member is connected to the shell corresponding to the buffer zone, and the other end is connected to the side wall of the anti-stuck material structure facing the buffer zone.

[0012] According to one embodiment of the present invention, the feed channel and the buffer zone are both located above the feeding screw.

[0013] According to one embodiment of the present invention, it further comprises a cooling water jacket, which is arranged on the outer side of the shell and is used for cooling the shell and the material in the shell.

[0014] According to one embodiment of the present invention, the anti-jamming structure is a plate-like structure, and the length of the anti-jamming structure is 1 to 5 times the maximum particle size of the material to be conveyed, and the length is the length from one end connected to the shell to the other end close to the feeding screw.

[0015] According to an embodiment of the present invention, the length of the buffer zone along the axial direction of the feeding screw is 1 to 5 times the height of the anti-jamming structure.

[0016] According to one embodiment of the present invention, it also includes an air-locking sealing valve group for isolating gas from entering the feeding chamber, the air-locking sealing valve group includes a first air-locking valve and a second air-locking valve, the shell is also provided with a discharge port, the discharge port is provided with a first air-locking valve, a second air-locking valve is provided between the first air-locking valve and the discharge position of the feeding screw, and a closed oxygen-isolating chamber is formed between the first air-locking valve and the second air-locking valve.

[0017] According to one embodiment of the present invention, the feeding cavity extends in an L-shape, and the extending direction of the closed oxygen-isolating cavity is perpendicular to the axial direction of the feeding screw.

[0018] The above one or more technical solutions in the embodiments of the present invention have at least one of the following technical effects:

[0019] The unloading and feeding equipment of the embodiment of the present invention includes a shell, a feeding screw and an anti-jamming structure. A buffer zone is provided in the feeding cavity of the shell. The anti-jamming structure is located between the feeding channel and the buffer zone. By adjusting the anti-jamming structure, the connection range between the feeding channel and the buffer zone can be adjusted. Then, under the push of the feeding screw, the material to be conveyed can enter the buffer zone from the feeding channel to avoid the material to be conveyed, the shell and the feeding screw from getting stuck. The organic combination of the anti-jamming structure and the buffer zone effectively solves the problem of the granular material getting stuck, thereby achieving the purpose of anti-jamming, anti-locking and safe operation.

[0020] Furthermore, in another embodiment of the present invention, a cooling water jacket is provided to cool the shell and the material in the shell, thereby preventing the packaging bag from being scalded.

[0021] Furthermore, another embodiment of the present invention also provides an airtight sealing valve group to achieve oxygen-tight sealing to protect the carbonaceous components in the furnace from being burned.

[0022] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0024] Figure 1 It is a structural schematic diagram of the unloading and feeding equipment provided in an embodiment of the present invention.

[0025] Reference numerals:

[0026] 1: Motor; 2: Reducer; 3: Drive shaft; 4: Feed channel; 5: Anti-stuck structure; 6: Buffer zone; 7: Shell; 8: Feed screw; 9: Loading chamber; 10: Second air-blocking valve; 11: Sealed oxygen-isolating chamber; 12: First air-blocking valve; 13: Spring; 14: Water inlet; 15: Cooling water jacket; 16: Water outlet. DETAILED DESCRIPTION

[0027] The following embodiments of the present invention are described in further detail in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0028] In the description of the embodiments of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limitations on the embodiments of the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0029] In the description of the embodiments of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present invention can be understood according to specific circumstances.

[0030] In the embodiments of the present invention, unless otherwise clearly specified and limited, the first feature being "above" or "below" the second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "above" and "above" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature being "below", "below" and "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0031] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the embodiment of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0032] One embodiment of the present invention, referring to Figure 1 As shown, a material unloading and feeding device is provided, comprising: a shell body 7, a feeding screw 8 and an anti-jamming structure 5, the shell body 7 is provided with a feeding port, a feeding cavity is constructed in the shell body 7, and a buffer zone 6 is provided in the feeding cavity; the feeding screw 8 is located in the feeding cavity, a feeding channel 4 is provided between the feeding screw 8 and the feeding port, and the feeding channel 4 and the buffer zone 6 are arranged side by side along the feeding direction of the feeding screw 8; the anti-jamming structure 5 is located between the feeding channel 4 and the buffer zone 6, and the anti-jamming structure 5 moves to adjust the communication range between the feeding channel 4 and the buffer zone 6.

[0033] The material to be transported enters the feed channel 4 from the feed port of the shell 7. The material to be transported is easily stuck in the feed channel 4, which may easily cause the feeding screw 8 to be stuck. In this embodiment, a buffer zone 6 is set in the feeding cavity, and an anti-stuck material structure 5 is set between the buffer zone 6 and the feed channel 4. The anti-stuck material structure 5 is subjected to the force of the material to be transported in the feed channel 4 and the pushing action of the feeding screw 8. Then, the anti-stuck material structure 5 is adjusted so that the material to be transported in the feed channel 4 can enter the buffer zone 6. A part of the material to be transported falls directly into the feeding screw 8, and the other part enters the buffer zone 6 and then falls into the feeding screw 8, thereby avoiding the situation where the material to be transported is restricted by the shell 7 and stuck in the feed channel 4. The unloading and feeding equipment of this embodiment is novel and practical, simple to manufacture, low in cost, and long in service life.

[0034] The anti-stuck material structure 5 is equivalent to a movable door between the feed channel 4 and the buffer zone 6. When the material to be transported is stuck in the feed channel 4, the anti-stuck material structure 5 is adjusted so that the material to be transported can enter the buffer zone 6, thereby releasing the stuck relationship between the shell 7, the material to be transported and the feeding screw 8. The anti-stuck material structure 5 can be a variety of adjustable structures suitable for being arranged between the feed channel 4 and the buffer zone 6, such as a movable plate, a valve, or a switch, which can be selected according to needs. The adjustment method of the anti-stuck material structure 5 can be automatic adjustment or manual adjustment. The anti-stuck material structure 5 has a simple structure, is easy to adjust, and is convenient to modify on existing equipment. In this embodiment, the anti-stuck material structure 5 is provided, which can solve the problem of the feeding screw 8 being stuck due to the granular material, and realize the continuous and safe feeding of the granular material.

[0035] The material to be processed is generally a granular material. Of course, the material to be processed may also be other materials that are easily stuck between the feed channel 4 and the feed screw 8 .

[0036] Furthermore, the feeding screw 8 can be a shaftless screw or a shafted screw, which can be selected according to needs. The feeding screw 8 is driven by a driving component, which includes a motor 1, a reducer 2 and a transmission shaft 3. The transmission shaft 3 is connected to the feeding screw 8. The housings of the motor 1 and the reducer 2 are relatively fixed to the housing 7. The motor 1 can be a variable frequency motor.

[0037] In another embodiment, the anti-jamming structure 5 is rotatably connected to the housing 7, and a reset member is further connected between the anti-jamming structure 5 and the housing 7. The anti-jamming structure 5 rotates to adjust the communication area between the feed channel 4 and the buffer zone 6, so that the material to be transported enters the buffer zone 6, solving the material jam problem in the feed channel 4. After solving the material jam problem, the reset member drives the anti-jamming structure 5 to reset to facilitate feeding.

[0038] Furthermore, the end of the anti-jamming structure 5 away from the feeding screw 8 is rotatably connected to the housing 7, which is convenient for adjustment at the end close to the feeding screw 8, and the rotation position of the anti-jamming structure 5 is less affected by the material to be conveyed.

[0039] Furthermore, the anti-stuck material structure 5 is connected to the housing 7 via a hinge, which has a simple structure, low cost and good connection stability. Alternatively, the anti-stuck material structure 5 is hinged to the housing 7 via an axis, which reduces parts and simplifies the structure.

[0040] In another embodiment, the reset member is a spring 13 or a cylinder.

[0041] In one embodiment, when the reset member is a spring 13, the anti-stuck material structure 5 is rotated toward the buffer zone 6 by the force of the material to be transported. After the material to be transported is transported, the restoring force of the spring 13 drives the anti-stuck material structure 5 to reset. The anti-stuck material structure 5 can be adjusted by the spring 13, and the adjustment is simple and the structure is simple. The organic combination of the anti-stuck material structure 5 and the spring 13 ensures that the anti-stuck structure moves freely and automatically resets after unblocking. Of course, the above-mentioned spring 13 can be a structure that can provide a restoring force, such as a spiral spring 13, an elastic airbag, etc.

[0042] In one embodiment, when the reset member is a cylinder (not shown in the figure), a force measurement structure, such as a strain sensor, needs to be set on the anti-jamming structure 5. When the force measured by the force measurement structure reaches a preset range, the cylinder drives the anti-jamming structure 5 to rotate to adjust the connection range between the feed channel 4 and the buffer zone 6; after the conveying of the conveyed material is completed, the cylinder drives the anti-jamming structure 5 to reset according to the measured force. In addition, the preset range of the force is different, and the rotation range of the anti-jamming structure 5 driven by the cylinder is different, which can be adjusted according to actual needs. Of course, the reset member is not limited to the cylinder, and structures such as hydraulic cylinders and motor-driven screws and nuts can be used.

[0043] In one embodiment, the reset member can also be a rotating motor (not shown in the figure), and the anti-jamming structure 5 is connected to the output end of the rotating motor. A force measurement structure, such as a strain sensor, needs to be set on the anti-jamming structure 5. When the force measured by the force measurement structure reaches a preset range, the rotating motor drives the anti-jamming structure 5 to rotate to adjust the connection range between the feed channel 4 and the buffer zone 6; after the conveying of the conveyed material is completed, the rotating motor drives the anti-jamming structure 5 to reset according to the measured force.

[0044] In another embodiment, one end of the reset member is connected to the housing 7 corresponding to the buffer zone 6, and the other end is connected to the side wall of the anti-jamming structure 5 facing the buffer zone 6. The reset member is arranged in the buffer zone 6, and the reset member connects the housing 7 and the anti-jamming structure 5, and the installation space is flexible, which can reduce the contact between the reset member and the material to be conveyed, thereby reducing the wear and consumption of the reset member, and improving the service life of the reset member and the anti-jamming structure 5.

[0045] In another embodiment, the feed channel 4 and the buffer zone 6 are both located above the feeding screw 8, the feed channel 4 and the buffer zone 6 are arranged in parallel, and the buffer zone 6 is located on one side of the feeding direction of the feeding screw 8 to facilitate the feeding of the feeding screw 8.

[0046] In another embodiment, the anti-jamming structure 5 is a plate-like structure with a simple structure and easy adjustment. The length of the anti-jamming structure 5 is 1 to 5 times the maximum particle size of the material to be conveyed, and the length is the length from one end connected to the shell 7 to the other end close to the feeding screw 8. The length of the anti-jamming structure 5 must meet the passage of the material to be conveyed, at least to meet the passage of particles with the maximum particle size; and the length of the anti-jamming structure 5 cannot be infinite. While meeting the feeding requirements, the length of the anti-jamming structure 5 is set to 5 times the maximum particle size of the material to be conveyed, which helps to reduce the volume of the equipment and reduce costs.

[0047] When the anti-stuck material structure 5 is located above the feeding screw 8 , when the anti-stuck material structure 5 is in a state perpendicular to the feeding screw 8 , the length of the anti-stuck material structure 5 is the height of the anti-stuck material structure 5 .

[0048] Furthermore, the height of the buffer zone 6 is generally consistent with the height of the anti-jamming structure 5 , or the height of the buffer zone 6 is not less than the height of the anti-jamming structure 5 , thereby providing a sufficient adjustment range for the anti-jamming structure 5 .

[0049] In another embodiment, the length of the buffer zone 6 along the axial direction of the feeding screw 8 is 1.5 to 5 times the height of the anti-jamming structure 5, which satisfies the adjustment range of the anti-jamming structure 5 while providing sufficient buffer space to accommodate the material to be transported.

[0050] In another embodiment, the unloading and feeding equipment further includes a cooling water jacket 15, which is arranged on the outer side of the shell. When the unloading and feeding equipment of this embodiment is used to receive the discharge of the high-temperature furnace, the cooling water jacket 15 is used to cool the shell and the materials in the shell. Further, the cooling water jacket 15 is provided with a water inlet 14 and a water outlet 16. The cooling water jacket 15 is tightly attached to the bottom of the shell 7 or tightly wrapped around the outer wall of the shell 7. The cooling water in the cooling water jacket 15 circulates, has a good cooling effect, and ensures that the cooling water jacket 15 is in full contact with the shell 7, further improving the cooling effect and ensuring production safety.

[0051] The above-mentioned embodiments of the present invention solve the problems of material jamming and high-temperature material discharge. The embodiments of the present invention can also solve the problem of airtight oxygen isolation.

[0052] In another embodiment, the unloading and feeding equipment also includes an airtight sealing valve group for isolating gas from entering the feeding chamber, thereby preventing gas from entering the high-temperature furnace. The airtight sealing valve group includes a first airtight valve 12 and a second airtight valve 10. A discharge port is also provided on the shell 7. The first airtight valve 12 is provided at the discharge port. A second airtight valve 10 is provided between the first airtight valve 12 and the discharge position of the feeding screw 8. A closed oxygen-isolating chamber 11 is formed between the first airtight valve 12 and the second airtight valve 10. Therefore, the feeding chamber includes a loading chamber 9 and a closed oxygen-isolating chamber 11 to meet the process requirements of closed oxygen isolation. A closed oxygen-isolating chamber 11 is created by the first airtight valve 12 and the second airtight valve 10, and the closed oxygen-isolating chamber 11 can be directly formed in the shell 7, which has a simple structure and is easy to operate.

[0053] When in use, the first air-blocking valve 12 and the second air-blocking valve 10 are opened and closed alternately to achieve the purpose of airtight oxygen isolation. A relatively independent, closed airtight oxygen isolation chamber 11 is formed in the feeding chamber, and the airtight oxygen isolation is simple and reliable, and the operation is safe and convenient.

[0054] Furthermore, a third air-blocking valve is provided at the feed inlet of the housing 7 to adjust the opening and closing of the feed inlet. Among them, the first air-blocking valve 12, the second air-blocking valve 10 and the third air-blocking valve can all be automatic electric ball valves.

[0055] In another embodiment, the shape of the feeding cavity is extended into an L shape, and the extension direction of the sealed oxygen-isolating cavity 11 is perpendicular to the axial direction of the feeding screw 8. The feeding screw 8 is located in the feeding cavity 9, and the discharge direction of the feeding screw 8 is perpendicular to the axial direction of the feeding screw 8. The sealed oxygen-isolating cavity 11 extends along the axial direction of the feeding screw 8 to facilitate feeding. Among them, the sealed oxygen-isolating cavity 11 extends in the vertical direction of the space so that the material to be transported falls by gravity.

[0056] Next, combine Figure 1 , taking the application of unloading and feeding equipment to granular materials as an example for specific explanation.

[0057] The pellets enter from the automatic electric ball valve at the feed port, and are controlled by the motor 1, reducer 2, and transmission shaft 3 to drive the feed screw 8 to rotate. The feed screw 8 pushes the pellets to its discharge position, and then the second air-locking valve 10 controls the pellets to enter the closed oxygen-isolating chamber 11, and finally the first air-locking valve 12 discharges the pellets; wherein the first air-locking valve 12 and the second air-locking valve 10 are opened and closed alternately to achieve the purpose of airtight oxygen isolation. In addition, the air-locking sealing valve group also includes a third air-locking valve arranged at the feed port to seal the feed port; by setting up the air-locking sealing valve group, the purpose of oxygen-isolating sealing to ensure that the carbonaceous components in the furnace are not burned is achieved.

[0058] When large particles are stuck between the feeding screw 8 and the anti-stuck structure 5, the feeding screw 8 pushes and the anti-stuck structure 5 and the spring 13 cooperate to move the large particles toward the buffer zone 6, and then the large particles are safely removed from between the feeding screw 8 and the anti-stuck structure 5, thereby achieving the purpose of anti-stuck, anti-locking and safe operation; the self-gravity of the anti-stuck structure 5 and the elastic force of the spring 13 work together to automatically return the anti-stuck structure 5 and the spring 13 to their original positions after being unstuck. The organic combination of the anti-stuck structure 5 and the buffer zone 6 effectively solves the problem of particle material stuck; by setting the cooling water jacket 15 to cool the material, the packaging bag is prevented from being scalded.

[0059] The above embodiments are only used to illustrate the present invention, but not to limit the present invention. Although the present invention is described in detail with reference to the embodiments, it should be understood by those skilled in the art that various combinations, modifications or equivalent substitutions of the technical solutions of the present invention do not depart from the spirit and scope of the technical solutions of the present invention, and should be included in the scope of the claims of the present invention.

Claims

1. A discharging and feeding device, characterized in that: include: A shell body, on which a feed port is provided, a feed cavity is constructed inside the shell body, and a buffer zone is provided inside the feed cavity; A feeding screw is located in the feeding cavity, a feeding channel is provided between the feeding screw and the feeding port, and the feeding channel and the buffer zone are arranged in parallel along the feeding direction of the feeding screw; an anti-stuck material structure, located between the feed channel and the buffer zone, the anti-stuck material structure moves to adjust the communication range between the feed channel and the buffer zone; The anti-jamming structure is rotatably connected to the housing, and a reset member is further connected between the anti-jamming structure and the housing; The feed channel and the buffer zone are both located above the feed screw, one end of the reset member is connected to the housing corresponding to the buffer zone, and the other end is connected to the side wall of the anti-stuck structure facing the buffer zone; It also includes a cooling water jacket, which is arranged on the outside of the shell and is used to cool the shell and the material in the shell; It also includes an air-tight sealing valve group for isolating gas from entering the feeding chamber, the air-tight sealing valve group includes a first air-tight valve and a second air-tight valve, the shell is also provided with a discharge port, the first air-tight valve is provided at the discharge port, the second air-tight valve is provided between the first air-tight valve and the discharge position of the feeding screw, and a closed oxygen-isolating chamber is formed between the first air-tight valve and the second air-tight valve.

2. The unloading and feeding equipment according to claim 1, characterized in that: The reset element is a spring or a cylinder.

3. The unloading and feeding equipment according to claim 1, characterized in that: One end of the anti-stuck structure away from the feeding screw is rotatably connected to the shell.

4. The unloading and feeding equipment according to claim 1, characterized in that: The anti-stuck material structure is a plate-like structure, and the length of the anti-stuck material structure is 1 to 5 times the maximum particle size of the material to be conveyed. The length is the length from one end of the anti-stuck material structure connected to the shell to the other end close to the feeding screw.

5. The unloading and feeding equipment according to claim 1, characterized in that: The length of the buffer zone along the axial direction of the feeding screw is 1 to 5 times the height of the anti-jamming structure.

6. The unloading and feeding equipment according to claim 5, characterized in that: The feeding cavity extends in an L shape, and the extending direction of the sealed oxygen-isolating cavity is perpendicular to the axial direction of the feeding screw.

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