Roller airlock feeder

Abstract

The utility model relates to the technical field of feeding equipment, in particular to a roller air-locking feeder which comprises a feeding port, a stock bin, a discharging port, a roller and a motor, the feeding port is formed in the upper portion of the stock bin and communicated with the stock bin, the motor is connected with the roller through a rotating shaft, and the discharging port is communicated with the discharging port. The motor drives the rotating shaft to rotate so as to drive the roller to rotate, the roller is arranged in the stock bin, the discharging port is formed below the roller, a plurality of sets of blades are arranged on the circumferential face of the roller, each set of blades are arranged in the axial direction of the roller, the blades in each set are arranged in parallel, and the blades in each set of blades are arranged in the axial direction of the roller. The blades in every two adjacent sets are arranged in a staggered mode, the portion, below the roller, of the stock bin is an arc-shaped outline stock bin, the height of the connecting position of the discharging port and the stock bin is larger than the height of the bottommost portion of the arc-shaped outline stock bin, and the connecting position of the discharging port and the stock bin is arranged on the discharging side of the bottommost portion of the arc-shaped outline stock bin. The air locking device is good in air locking effect and stable in discharging.

Description

Technical Field

[0001] The utility model relates to the technical field of feeding equipment, in particular to a roller air-locking feeder. Background Art

[0002] The air-lock feeder is a device used for conveying and feeding solid materials. Its working principle mainly includes the following steps: 1. Material feeding, the solid materials to be conveyed and fed are put into the silo of the air-lock feeder through the feed port; 2. Material conveying, the material is evenly conveyed under the external force of the feeding mechanism; 3. The size of the feed port and the conveying speed of the feeding mechanism control the feeding amount and feeding speed of the material respectively. During the entire feeding process, avoid negative pressure cold air from entering the feeder.

[0003] The patent document with patent number 202122271284.6 discloses an air lock valve for a cement kiln preheater system. Its specification states that "when the output shaft of the motor rotates, the rotating sleeve inside the valve body can be driven to rotate. When the rotating sleeve rotates, it drives the dividing wheel thereon to rotate. A number of blades are installed on the dividing wheel. When the dividing wheel rotates, it can drive the blades to rotate, and the blades transport the cement entering the valve body from the hopper, so that the cement enters the discharge hopper under the valve body as the blades rotate." This prior art uses dividing wheels and blades to transport materials. Due to the gap between the blades and the cavity, it is easy to get stuck. If the gap is too large, it is easy to leak air, the air locking effect is poor, and the material cannot be discharged smoothly. Utility Model Content

[0004] In order to solve the above problems, the utility model provides a roller air-locking feeder, which has a good air-locking effect and uses the material itself and the discharge port to lock the air. The roller shifts the material evenly and can discharge the material smoothly.

[0005] In order to achieve the above-mentioned purpose, the technical solution adopted by the utility model is as follows: a roller air lock feeder is provided, comprising a feed port, a silo, a discharge port, a roller and a motor, wherein the feed port is arranged at the upper part of the silo, the feed port is connected to the silo, the motor is connected to the roller through a rotating shaft, the motor drives the roller to rotate by driving the rotating shaft, the roller is arranged in the silo, the discharge port is arranged below the roller, a plurality of groups of blades are arranged on the circumferential surface of the roller, each group of the blades is arranged along the axial direction of the roller, the blades in each group are arranged in parallel, and the blades in two adjacent groups are arranged alternately, the silo below the roller is a circular arc profile silo, the height of the connection between the discharge port and the silo is higher than the bottom height of the circular arc profile silo, and the connection between the discharge port and the silo is arranged at the discharge side of the bottom of the circular arc profile silo.

[0006] Furthermore, the blade is a right-angled trapezoidal blade.

[0007] Furthermore, two rollers are arranged in the silo, the two rollers are arranged at the same height, and the two rollers rotate towards each other.

[0008] Furthermore, the material bin below each of the rollers is a material bin with an arc-shaped profile, and the material bin with an arc-shaped profile below each of the rollers is concentric with the adjacent roller.

[0009] Furthermore, a vertical channel steel is provided on the inner wall of the silo, and motor mounting positions at different heights are provided on the channel steel. The motor is installed at the motor mounting positions at different heights so that the roller is located at different heights of the silo.

[0010] Furthermore, when one roller is arranged in the silo, the silo is a cylindrical silo.

[0011] Furthermore, the roller is coaxial with the silo.

[0012] Furthermore, the motor mounting positions on the channel steel are threaded holes that are equidistantly arranged in sequence along the length direction of the channel steel, and the motor is fixed by being mounted to the threaded holes on the channel steel by bolts.

[0013] Furthermore, the feed port is located in the middle of the two rollers, and two discharge ports are provided, which are respectively arranged on two sides away from the middle of the two rollers.

[0014] The technical solution of this utility model has the following advantages:

[0015] 1. The roller of the utility model is densely covered with blades, which are in full contact with the material and evenly mix the material. The outline of the silo is also designed to be an arc shape, so that when the roller rotates, the distance between the material in each part of the silo and the central axis of the roller is appropriate, and the material can be evenly mixed, with good air locking effect and stable material discharge.

[0016] 2. The blade on the roller in the utility model is a right-angled trapezoidal blade. Compared with a triangular blade, the right-angled trapezoidal blade has a less sharp blade head, is not easily damaged during collision with materials, has a long service life, and is not easily deformed during use.

[0017] 3. The number of rollers in the utility model can be set to double rollers to meet the feeding needs of large material transportation volume. By setting two discharge bins for synchronous diversion processing of the next process, the work efficiency is improved.

[0018] 4. The utility model adopts rollers to feed materials evenly, and designs the silo into an arc-shaped profile silo. The position where the discharge port connects to the silo is higher than the bottom height of the arc-shaped profile silo. During the feeding process, there is always material at the bottom of the arc-shaped profile silo to block the connection between the discharge port and the silo. The blocking of the material itself plays a role in locking the wind, and the air-locking effect is good, which prevents the negative pressure wind in the cement kiln pre-combustion furnace from entering. Since the combustion in the furnace has requirements on the combustion temperature, if the external cold air enters the furnace, it will cause the temperature in the furnace to be unstable, resulting in incomplete combustion, thereby affecting the burning effect.

[0019] It should be appreciated that all combinations of the foregoing concepts, as well as additional concepts described in greater detail below, may be considered part of the inventive subject matter of the present disclosure, provided such concepts are not mutually inconsistent.

[0020] The foregoing and other aspects, embodiments and features of the present invention can be more fully understood from the following description in conjunction with the accompanying drawings. Other additional aspects of the present invention, such as the features and / or beneficial effects of the exemplary embodiments, will be apparent from the following description or learned through practice of the specific embodiments according to the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The accompanying drawings are not drawn to scale according to actual reference objects. In the accompanying drawings, each identical or approximately identical component shown in each figure may be represented by the same reference numeral. For the sake of clarity, not every component is labeled in each figure. Now, embodiments of various aspects of the utility model will be described by way of example and with reference to the accompanying drawings, in which:

[0022] Figure 1 This is a structural diagram of a single roller embodiment of the roller air lock feeder of the utility model.

[0023] Figure 2 It is a left view of the roller inside the silo of the roller air lock feeder of the utility model.

[0024] Figure 3 The utility model is a schematic diagram of the roller structure of the roller air lock feeder.

[0025] Figure 4 This is a structural diagram of a double-roller embodiment of the roller air-lock feeder of the utility model.

[0026] Description of Figure Numbers:

[0027] 1-feed port; 2-roller; 3-motor; 4-channel steel; 5-silo; 6-discharge port; 7-blade; 8-rotating shaft. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution of the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings of the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the described embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model. Unless otherwise defined, the technical terms or scientific terms used herein should be the usual meanings understood by people with general skills in the field to which the utility model belongs.

[0029] The words "first", "second" and similar words used in the specification and claims of the utility model patent application do not indicate any order, quantity or importance, but are only used to distinguish different components. Similarly, unless the context clearly indicates otherwise, the singular form of "a", "an" or "the" and other similar words do not indicate a quantitative limitation, but indicate the existence of at least one. "Include" or "comprise" and other similar words mean that the elements or objects appearing before "include" or "comprise" cover the features, wholes, steps, operations, elements and / or components listed after "include" or "comprise", and do not exclude the existence or addition of one or more other features, wholes, steps, operations, elements, components and / or their collections. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0030] The existing technology uses grid wheels and blades to transport materials. Since there is a gap between the blades and the cavity, the material is easily stuck. If the gap is too large, it is easy to leak air, the air locking effect is poor, and the material cannot be discharged smoothly.

[0031] Based on the above problems, an embodiment of the utility model provides a roller air lock feeder, which will not have air leakage during the entire feeding process, thus overcoming the defects of traditional air lock feeders.

[0032] See also Figures 1 to 4As shown, the embodiment of the utility model provides a roller air lock feeder, including a feed port 1, a silo 5, a discharge port 6, a roller 2 and a motor 3, wherein the feed port 1 is arranged on the upper part of the silo 5, the feed port 1 is connected to the silo 5, the motor 3 is connected to the roller 2 through a rotating shaft 8, the motor 3 drives the rotating shaft 8 to rotate so as to drive the roller 2 to rotate, the roller 2 is arranged in the silo 5, the discharge port 6 is arranged below the roller 2, and a plurality of groups of blades 7 are arranged on the circumferential surface of the roller 2, each of which has a plurality of blades 7. The blades 7 of each group are arranged axially along the roller 2, the blades 7 in each group are arranged in parallel, and the blades 7 in two adjacent groups are arranged alternately. The silo below the roller 2 is a silo 5 with a circular arc profile, and the height of the connection between the discharge port 6 and the silo 5 is higher than the bottom height of the circular arc profile silo 5, and the connection between the discharge port 6 and the silo 5 is arranged on the discharge side of the bottom of the circular arc profile silo, that is, when the material is discharged, it first passes through the bottom of the circular arc profile silo 5 and then passes through the discharge port 6.

[0033] The material is transported from the feed port 1 to the silo 5, and is evenly stirred by the roller 2 from top to bottom, and then transported to the next process from the discharge port 6. The motor 3 is started to drive the shaft 8 to rotate, and the shaft 8 is connected to the roller 2. The roller 2 rotates, and the roller 2 is densely covered with blades 7. The blades 7 fully contact the material to evenly mix the material. The profile of the silo 5 is also designed to be an arc shape, so that when the roller 2 rotates, the distance between the material in each part of the silo 5 and the central axis of the roller 2 is appropriate, and all materials can be evenly stirred. Since the height of the connection between the discharge port 6 and the silo 5 is higher than the bottom height of the arc-shaped silo 5, the material must pass through the bottom of the arc-shaped silo 5 before it can go out of the discharge port 6. In the process of the material being continuously pushed downward by the roller 2, the material will always be accumulated at the bottom of the arc-shaped silo 5 due to the action of gravity. Therefore, in the process of discharging and pushing the material, the front end of the discharge port 6 is always sealed with accumulated materials. Therefore, the whole process has a good air locking effect, no air leakage and smooth discharge.

[0034] During the feeding process, due to the good air locking effect, negative pressure air in the cement kiln pre-combustion furnace is prevented from entering. Since the combustion in the furnace has requirements on the combustion temperature, if the external cold air enters the furnace, the temperature in the furnace will be unstable, resulting in incomplete combustion, thus affecting the burning effect. The utility model overcomes this defect through structural improvement.

[0035] See also Figure 3 As shown, in some embodiments of the utility model, the blade 7 is a right-angled trapezoidal blade 7. Compared with the triangular blade 7, the right-angled trapezoidal blade 7 has a less sharp blade head, is not easily damaged during collision with materials, and has a long service life. The right-angled trapezoidal blade 7 is not easily deformed during use.

[0036] See also Figure 4 As shown, in some embodiments of the utility model, two rollers 2 are arranged in the silo 5, and the two rollers 2 are arranged at the same height. The two rollers 2 rotate towards each other, which improves the efficiency of uniform material. Even when the material quantity is large, the material can be fully uniform, achieving the effect of smooth discharge.

[0037] In some embodiments of the utility model, the silo 5 below each of the rollers 2 is an arc-shaped contour silo, and the arc-shaped contour silo 5 below each of the rollers 2 is concentric with the adjacent rollers 2, ensuring that when the material is placed in the silo 5, it is restricted by the structure of the silo 5, the material is at an appropriate distance from the central axis of the roller 2, and there are no corners of the material that are difficult to stir.

[0038] In some embodiments of the utility model, a vertical channel steel 4 is provided on the inner wall of the silo 5, and motor 3 mounting positions at different heights are provided on the channel steel 4. The motor 3 is installed to the motor 3 mounting positions at different heights so that the roller 2 is located at different heights of the silo 5. The height of the roller 2 in the silo 5 is designed to be adjustable to meet the needs of different occasions.

[0039] In some embodiments of the present invention, when one roller 2 is disposed in the silo 5, the silo 5 is a cylindrical silo 5, which ensures that materials at various positions in the silo 5 can be evenly stirred.

[0040] In some embodiments of the present invention, the roller 2 is coaxial with the silo 5 .

[0041] In some embodiments of the utility model, the mounting position of the motor 3 on the channel steel 4 is threaded holes equidistantly arranged in sequence along the length direction of the channel steel 4, and the motor 3 is fixed to the threaded holes on the channel steel 4 by bolts. The roller 2 is height-adjustable and detachable, so it is easy to replace a new roller 2.

[0042] In some embodiments of the utility model, the feed port 1 is located between the two rollers 2, so that each roller 2 receives a uniform amount of material. Two discharge ports 6 are provided, which are respectively arranged on both sides away from the middle of the two rollers 2, which is beneficial to the material diversion processing in the next process.

[0043] The working principle of the utility model is as follows: the material is transported from the feed port 1 to the silo 5, and falls from top to bottom under the action of gravity. During the falling process, it is evenly stirred by the roller 2, and then transported to the next process from the discharge port 6. The working power of the roller 2 comes from the motor 3. When the motor 3 is started, the power output end of the motor 3 drives the rotating shaft 8 to rotate. The rotating shaft 8 is connected to the roller 2, so that the roller 2 rotates at a uniform speed. Since the blades 7 are evenly and densely distributed on the roller 2, the blades 7 fully contact with the material and stir the material. The profile of the silo 5 is also designed to be an arc, so that during the rotation of the roller 2, the distance between the materials in the silo 5 and the central axis of the roller 2 is appropriate.

[0044] The height of the connection between the discharge port 6 and the silo 5 is higher than the bottom height of the arc-shaped silo 5. The material must pass through the bottom of the arc-shaped silo 5 before it can go out of the discharge port 6. In the process of the material being continuously pushed downward by the roller 2, the material will always be accumulated at the bottom of the arc-shaped silo 5 due to the action of gravity. Therefore, in the process of the discharge roller 2 pushing the material downward, there is always material accumulation at the front end of the discharge port 6, thereby sealing the front end of the connection between the discharge port 6 and the silo 5. Therefore, the feeder has a good air locking effect in the whole process, there is no air leakage and the discharge is smooth.

[0045] The utility model overcomes the problem that the traditional air-locking feeder uses a grid wheel and blades to transport materials, there is a gap between the blades and the cavity, which makes it easy for the material to get stuck, and if the gap is too large, it is easy for air to leak, resulting in a poor air-locking effect. The external cold air enters the pre-combustion furnace, which will affect the firing effect of the next process. Therefore, the embodiment of the utility model also improves the overall effect of material processing and improves the yield rate of cement firing.

[0046] Although the present invention has been disclosed as above with preferred embodiments, it is not intended to limit the present invention. A person with ordinary knowledge in the technical field to which the present invention belongs may make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, the protection scope of the present invention shall be determined by the definition of the claims.

Claims

1. A roller air lock feeder, characterized in that: It includes a feed port, a silo, a discharge port, a roller and a motor, wherein the feed port is arranged at the upper part of the silo, the feed port is connected to the silo, the motor is connected to the roller via a rotating shaft, and the motor drives the roller to rotate by driving the rotating shaft, the roller is arranged in the silo, the discharge port is arranged below the roller, a plurality of groups of blades are arranged on the circumferential surface of the roller, each group of the blades is arranged along the axial direction of the roller, the blades in each group are arranged in parallel, and the blades in two adjacent groups are arranged alternately, the silo below the roller is an arc-shaped contour silo, the height of the connection between the discharge port and the silo is higher than the bottom height of the arc-shaped contour silo, and the connection between the discharge port and the silo is arranged on the discharge side of the bottom of the arc-shaped contour silo.

2. The roller air lock feeder according to claim 1, characterized in that: The blade is a right-angled trapezoidal blade.

3. The roller air lock feeder according to claim 1, characterized in that: Two rollers are arranged in the silo, the two rollers are arranged at the same height, and the two rollers rotate towards each other.

4. The roller air lock feeder according to claim 3, characterized in that: The material bin under each of the rollers is a circular arc profile material bin, and the circular arc profile material bin under each of the rollers is concentric with the adjacent roller.

5. The roller air lock feeder according to claim 1, characterized in that: A vertical channel steel is provided on the inner wall of the silo, and motor mounting positions at different heights are provided on the channel steel. The motor is installed at the motor mounting positions at different heights so that the roller is located at different heights of the silo.

6. The roller air lock feeder according to claim 1, characterized in that: When one roller is arranged in the silo, the silo is a cylindrical silo.

7. The roller air lock feeder according to claim 6, characterized in that: The roller is coaxial with the silo.

8. The roller air lock feeder according to claim 5, characterized in that: The motor mounting positions on the channel steel are threaded holes that are equidistantly arranged in sequence along the length direction of the channel steel, and the motor is fixed to the threaded holes on the channel steel by bolts.

9. The roller air lock feeder according to claim 4, characterized in that: The feed port is located in the middle of the two rollers, and two discharge ports are provided, which are respectively arranged on two sides away from the middle of the two rollers.

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