Multi-modal coal flow self-adaptive speed regulation device

Abstract

The invention discloses a multi-modal coal flow self-adaptive speed regulation device, and relates to the technical field of coal transportation, a spiral channel which is continuously and spirally distributed is formed in a transshipment chute body, friction energy consumption of coal in the transshipment transportation process can be increased, the buffering effect on the coal is improved, and meanwhile, through continuous flow direction change in the coal transshipment transportation process, the speed of the coal flow can be adjusted to a certain degree. Furthermore, a coal material transferring adjusting assembly is arranged in the transferring chute body, the coal material conveying state is adjusted in real time through cooperation with the spiral channel, and the reliability of coal material transferring is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of coal material transportation, and particularly relates to a multi-modal coal flow adaptive speed regulation device. Background Art

[0002] For belt conveyors with large conveying capacity and large inclination angle, when there is a large angle between the discharging conveyor belt and the receiving conveyor belt, a transfer chute is usually used for the transfer and transportation of coal materials, and at the same time, the impact force of the coal materials is reduced. The existing transfer chute usually consists of an adjustable transfer channel in a stepped or vertical shape. For example, a chute device disclosed in a Chinese patent with the publication number CN 110606321A forms a transfer channel between the upper material receiving control component and the lower material receiving control component which are oppositely arranged between the feeding end of the multi-stage storage bin and the terminal of the first conveyor belt. The orientation of the upper material receiving control component and / or the lower material receiving control component relative to the multi-stage storage bin is adjustable to adjust the relative position relationship between the transfer channel and the multi-stage storage bin, regulate the running track of the material, and achieve the buffering of the material and reduce the impact.

[0003] However, the reliability of the existing transfer chute is relatively low, the effect of slowing down the impact force and impact speed of coal materials is poor, and it is easy to cause the accumulation and blockage of coal materials and the damage of the conveyor belt.

[0004] Therefore, how to effectively improve the buffering and dust-proof and blockage-reducing effects of the transfer chute on coal materials and improve the reliability of the transfer chute has become an urgent problem to be solved in this field. Summary of the Invention

[0005] Aiming at the defects of the prior art, the purpose of the present invention is to provide a stable and reliable multi-modal coal flow adaptive speed regulation device to effectively improve the buffering effect on coal materials.

[0006] To achieve the above purpose, the multi-modal coal flow adaptive speed regulation device provided by the present invention is used in cooperation with the discharging conveyor belt and the receiving conveyor belt. A funnel is provided at the end of the discharging conveyor belt, and it includes

[0007] A transfer chute body, which is arranged between the discharging conveyor belt and the receiving conveyor belt. The transfer chute body forms a continuously spirally distributed spiral channel, and the feeding port of the transfer chute body is slidably connected to the funnel, and the discharging port is located above the receiving conveyor belt.

[0008] A coal material transfer adjustment component, which is distributed in the transfer chute body and is configured to be able to adjust the conveying state of the coal material.

[0009] A control device, which is configured to be able to control the working state of the coal material transfer adjustment component.

[0010] Further, the spiral channel includes a first-layer spiral channel, a second-layer spiral channel, and a discharge channel. One end of the second-layer spiral channel is connected to the first-layer spiral channel through a transition section, and the other end is connected to the discharge channel.

[0011] Further, the first-layer spiral channel and the second-layer spiral channel are configured to be continuously distributed in a cylindrical spiral shape.

[0012] Further, the first-layer spiral channel and the second-layer spiral channel are configured to be continuously distributed in a frustum spiral shape.

[0013] Further, the discharge channel is configured to be distributed in a rounded L shape.

[0014] Further, a friction buffer layer is provided on the inner wall of the first-layer spiral channel, an elastic buffer layer is provided on the inner wall of the transition section, and a polishing layer is provided on the inner wall of the second-layer spiral channel.

[0015] Further, the coal material transfer adjustment assembly includes a coal material driving device distributed in the first-layer spiral channel, a diversion device provided in the transition section, and a resistance adjustment device provided in the discharge channel.

[0016] Further, the coal material driving device includes a purging device and / or a vibrator. The diversion device is composed of a rotating diversion plate or a rotating impeller, and the resistance adjustment device is composed of an air choke.

[0017] Further, a slide rail is provided at the end of the funnel, and a slip ring adapted to the slide rail is provided at the end of the feed port.

[0018] Further, the discharge port is configured to be inclined towards the transfer chute body and the diameter gradually increases.

[0019] The multi-modal coal flow adaptive speed regulation device provided by the present invention forms a spiral channel with a continuous spiral distribution in the transfer chute body, which can increase the frictional energy consumption of the coal material during the transfer and transportation process, improve the buffering effect on the coal material. At the same time, during the transfer and transportation process of the coal material, through continuous flow direction changes, the transfer efficiency of the coal material is enhanced, and coal material blockage is prevented.

[0020] Further, a coal material transfer adjustment assembly is provided in the transfer chute body, which cooperates with the spiral channel to adjust the transportation state of the coal material in real time and improve the reliability of coal material transfer. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The following further describes the present invention in conjunction with the drawings and specific embodiments.

[0022] Figure 1 It is a schematic diagram of the overall structure of the multi-modal coal flow adaptive speed regulation device provided by the present invention;

[0023] Figure 2a This is a schematic structural diagram of the transfer chute body in this embodiment;

[0024] Figure 2b is Figure 2a a top view schematic diagram of;

[0025] Figure 3a This is another example of the first-layer spiral channel and the second-layer spiral channel in the present invention;

[0026] Figure 3b is Figure 3a a top view schematic diagram of;

[0027] Figure 4 This is a schematic structural diagram of the rotating impeller in the present invention;

[0028] Figure 5 This is a schematic structural diagram of the funnel in the present invention;

[0029] Figure 6 This is a schematic structural diagram of the discharge port in the present invention.

[0030] Reference numerals:

[0031] 100. Discharge conveyor belt; 200. Receiving conveyor belt; 300. Funnel; 310. Slide rail; 320. Splash-proof baffle;

[0032] 400. Transfer chute body; 410. Feed inlet; 411. Slip ring; 420. Discharge port; 421. Baffle; 422. Inclined bottom plate; 430. First-layer spiral channel; 431. Friction buffer layer; 440. Second-layer spiral channel; 441. Polishing layer; 450. Discharge channel; 460. Transition section; 461. Elastic buffer layer;

[0033] 500. Coal transfer adjustment assembly; 510. Coal driving device; 511. Blowing device; 512. Vibrator; 520. Flow guiding device; 521. Rotating flow guiding plate; 522. Rotating impeller; 530. Resistance adjustment device. Detailed implementation manners

[0034] In order to make the technical means, creative features, achieved purposes and functions of the present invention easy to understand, the present invention will be further described below with reference to specific drawings.

[0035] See Figure 1 , which shows an example of the multi-modal coal flow adaptive speed regulation device provided by the present invention.

[0036] As can be seen from the figure, the multi-modal coal flow adaptive speed regulation device of this embodiment cooperates with the unloading conveyor belt 100 and the receiving conveyor belt 200. A funnel 300 is provided at the end of the unloading conveyor belt 100. This screw rotary chute mainly includes a rotary chute body 400, a coal material transfer adjustment assembly 500, and a control device.

[0037] The rotary chute body 400 is arranged between the unloading conveyor belt 100 and the receiving conveyor belt 200. The rotary chute body 400 forms a spiral channel with continuous spiral distribution. And the feed inlet 410 of the rotary chute body 400 is slidably connected with the funnel 300, and the discharge outlet 420 is placed above the receiving conveyor belt 200. During the process of coal material transfer and transportation, through continuous flow direction changes, the friction energy consumption and transfer efficiency of the coal material during the transfer and transportation process are increased to improve the buffering effect and prevent blockage.

[0038] The coal material transfer adjustment assembly 500 is distributed in the rotary chute body 400 and is configured to be able to adjust the conveying state of the coal material. The control device is configured to be able to control the working state of the coal material transfer adjustment assembly 500, so that the coal material transfer adjustment assembly 500 and the control device cooperate with each other, and jointly with the rotary chute body 400 to ensure the buffering and transfer reliability of the coal material.

[0039] Combined with Figure 2a and Figure 2b , among which, the rotary chute body 400 includes a first-layer spiral channel 430, a second-layer spiral channel 440, and a discharge channel 450. The first-layer spiral channel 430, the second-layer spiral channel 440, and the discharge channel 450 cooperate with each other to form a continuous spiral channel to slow down the impact of the coal material.

[0040] Specifically, one end of the second-layer spiral channel 440 is connected to the first-layer spiral channel 430 through a transition section 460, and the other end is connected to the discharge channel 450, so that the first-layer spiral channel 430, the second-layer spiral channel 440, and the discharge channel 450 form a continuous channel, which is convenient for the transfer and transportation of coal material.

[0041] Furthermore, the end of the first-layer spiral channel 440 forms a feed inlet 410, which is connected and matched with the funnel 300. The end of the discharge channel 450 forms a discharge outlet 420, so that the coal material can enter the first-layer spiral channel 440 from the feed inlet 410 through the funnel 300 on the unloading conveyor belt 100, and sequentially pass through the first-layer spiral channel 430, the second-layer spiral channel 440, and the discharge channel 450, and fall from the discharge outlet 420 to the receiving conveyor belt 200, thus completing the transfer and transportation of the coal material.

[0042] Combined with Figure 2a and Figure 2b, in order to improve the buffering effect of the coal material during the transfer and transportation process, reduce the impact loss of the coal material on the receiving conveyor belt 200, and ensure the stable transportation of the coal material, both the first-layer spiral channel 430 and the second-layer spiral channel 440 are configured as inclined spiral pipes, so that the coal material spirally rotates and falls in the first-layer spiral channel 430 and the second-layer spiral channel 440, increasing the frictional energy consumption and transfer efficiency of the coal material, reducing the impact speed and preventing dust and blockage.

[0043] Furthermore, the discharge channel 450 is configured in a rounded L-shaped distribution, so that after the coal material reduces the impact speed, it can smoothly fall through the discharge channel 450.

[0044] As Figure 3a and Figure 3b shown, in some embodiments, the first-layer spiral channel 430 and the second-layer spiral channel 440 are configured in a continuous cylindrical spiral distribution, so that the rotation paths of the first-layer spiral channel 430 and the second-layer spiral channel 440 are the same, and the coal material can maintain stable rotational transportation in the first-layer spiral channel 430 and the second-layer spiral channel 440.

[0045] As Figure 2a and Figure 2b shown, as a preferred setting scheme, the first-layer spiral channel 430 and the second-layer spiral channel 440 are configured in a continuous frustum spiral distribution, so that the rotation path of the first-layer spiral channel 430 is smaller and the rotation path of the second-layer spiral channel 440 is larger, so that the spiral diameter of the transfer chute body 400 gradually increases in a frustum shape.

[0046] Furthermore, the transition section 460 is configured as a circular arc-shaped pipe extending in the vertical direction along the outlet of the first-layer spiral channel 430 to the inlet of the second-layer spiral channel 440.

[0047] In this way, when the coal material enters the first-layer spiral channel 430 from the feed inlet 410, the speed is relatively high and the corresponding angular velocity is also relatively high, so that the first-layer spiral channel 430 can generate a relatively large centrifugal force on the coal material, forcing the coal material to slide closely along the inner wall of the first-layer spiral channel 430 to improve the frictional buffering effect on the coal material.

[0048] Furthermore, the coal material buffers in the first-layer spiral channel 430 and enters the transition section 460 after reducing the impact speed. The coal material will gradually transition from the spiral motion close to the inner wall of the first-layer spiral channel 430 to a parabolic free fall along the transition section 460, reducing the risk of excessive deceleration and blockage caused by continuous friction.

[0049] Furthermore, after the coal material passes through the first-layer spiral channel 430 and the transition section 460, it stably enters the second-layer spiral channel 440 at a lower speed after buffering. This weakens the centrifugal force generated by the second-layer spiral channel 440 on the coal material, causing the coal material to separate from the inner wall of the second-layer spiral channel 440 and spiral down along the longer rotation path of the second-layer spiral channel 440 relying on gravity, forming a stable low-speed flow. This can prevent the accumulation and blockage of the coal material, and improve the transfer and transportation efficiency and reliability of the coal material.

[0050] Next, the coal material smoothly enters the discharge channel 450 from the second-layer spiral channel 440, and slides along the discharge channel 450 in a rounded-corner L shape under the inertial effect of the spiral downward movement, and smoothly drops from the discharge port 420 to the receiving conveyor belt 200, reducing the impact on the receiving conveyor belt 200.

[0051] Thus, the transfer chute body 400 can be formed by the mutual cooperation of the first-layer spiral channel 430, the second-layer spiral channel 440, and the discharge channel 450. The first-layer spiral channel 430, as a buffer channel for the coal material, can effectively buffer the impact speed of the coal material. The second-layer spiral channel 440, as an anti-blockage channel for the coal material, can cooperate with the transition section 460 to make the coal material flow stably at a low speed, prevent accumulation and blockage, and finally gently drop from the discharge channel 450, thereby effectively improving the buffering effect of the coal material, preventing accumulation and blockage, and improving the transfer and transportation efficiency and reliability of the coal material.

[0052] To ensure the buffering and anti-blockage effects of the coal material, different buffer and anti-blockage layers are respectively provided on the inner walls of different channels in the transfer chute body 400 corresponding to the transfer and transportation process of the coal material. At the same time, in cooperation with the coal material transfer adjustment component 500 distributed in the transfer chute body 400, the coal material is further effectively buffered and anti-blocked.

[0053] Combined with Figure 2a , specifically, a friction buffer layer 431 is provided on the inner wall of the first-layer spiral channel 430. The friction buffer layer 431 can be composed of a frosted coating or a concave-convex honeycomb layer attached to the inner wall of the first-layer spiral channel 430 to increase the friction coefficient of the inner wall of the first-layer spiral channel 430. When the coal material slides closely along the inner wall of the first-layer spiral channel 430, the friction force on the coal material can be increased, thereby improving the friction buffer for the coal material and effectively slowing down the impact speed.

[0054] In cooperation with this, the coal material transfer adjustment component 500 includes a coal material driving device 510 arranged in the first-layer spiral channel 430. The coal material driving device 510 includes a purging device 511. The purging device 511 is arranged outside the first-layer spiral channel 430, and the purging pipe of the purging device 511 extends into the first-layer spiral channel 430 to release a pressure air source in the transportation direction of the coal material, thereby driving the coal material to move stably and continuously.

[0055] In some embodiments, the coal material driving device 510 further includes a vibrator 512, which is evenly distributed on the outer wall of the first-layer spiral channel 430 and applies a vibration force to the first-layer spiral channel 430, capable of vibrating and removing the coal material accumulation on the friction buffer layer 431, promoting the flow of coal material, and thus ensuring the smooth movement of coal material.

[0056] The first-layer spiral channel 430 and the coal material driving device 510 configured in this way cooperate with each other, can effectively increase the friction of coal material, improve the buffering effect, and at the same time remove the accumulation of coal material in the friction buffer layer 431, ensuring the stable and continuous movement of coal material.

[0057] Furthermore, in order to prevent the impact on the transition section 460 caused by the sudden change in the movement trajectory of coal material when it enters the transition section 460 from the first-layer spiral channel 430, an elastic buffer layer 461 is provided on the inner wall of the transition section 460. The elastic buffer layer 461 can be composed of a rubber layer attached to the inner wall of the transition section 460 to absorb the local impact energy of coal material and reduce the impact loss of the transition section 460.

[0058] Correspondingly, the coal material transfer adjustment assembly 500 further includes a diversion device 520 disposed in the transition section 460. The diversion device 520 is composed of a rotating diversion plate 521. One end of the rotating diversion plate 521 is hinged to the inner wall of the transition section 460, and the other end extends into the interior of the transition section 460 and rotates freely around the hinged end, so that an adjustable angle is formed between the rotating diversion plate 521 and the inner wall of the transition section 460. Part of the coal material will fall into the angle. By rotating the rotating diversion plate 521 to adjust the size of the angle, the flow rate and speed of coal material entering the second-layer spiral channel 440 can be controlled. At the same time, when the rotating diversion plate 521 rotates towards the second-layer spiral channel 440, the coal material in the angle will be gradually released, thereby reducing the impact loss caused by the direct fall of coal material into the transition section 460 and the second-layer spiral channel 440.

[0059] Combined Figure 4 with, in some embodiments, the diversion device 520 can also be composed of a rotating impeller 522. The rotating impeller 522 is disposed in the middle area of the transition section 460 and rotates continuously or periodically. By adjusting the rotation speed of the rotating impeller 522, the flow rate and resistance of coal material can be adjusted, thereby reducing the impact loss of the transition section 460 and at the same time ensuring that the coal material will not accumulate and block in the transition section 460.

[0060] The transition section 460 and the diversion device 520 configured in this way cooperate with each other, can effectively reduce the impact on the transition section 460 caused by the sudden change in the movement trajectory of coal material, and at the same time effectively adjust the flow rate and speed of coal material entering the second-layer spiral channel 440, thereby preventing the blockage of coal material.

[0061] Combined again Figure 2a, Further, a polishing layer 441 is provided on the inner wall of the second-layer spiral channel 440. By way of example, the polishing layer 441 can be formed by polishing the inner wall of the second-layer spiral channel 440. After the coal material passes through the first-layer spiral channel 430 and the transition section 460 to slow down the impact speed and smoothly enter the second-layer spiral channel 440, the polishing layer 441 can reduce the frictional resistance to the coal material, promote the coal material to slide down stably at a low speed relying on gravity, effectively reduce the risk of blockage, and improve the dust prevention and blockage reduction effect.

[0062] Therefore, the coal material can enter the discharge channel 450 at a low speed and slide along the discharge channel 450 under the inertial action of spiral sliding. In order to prevent the speed of the coal material from increasing when it freely slides at the discharge port 420, the coal material transfer adjustment assembly 500 further includes a resistance adjustment device 530 provided in the discharge channel 450.

[0063] The resistance adjustment device 530 is preferably composed of an air flow restrictor and is close to the discharge port 420. The resistance adjustment device 530 is configured to apply a reverse air flow to the transportation direction of the coal material to form an air film resistance, so that the resistance adjustment device 530 can reduce the speed of the coal material when it falls from the discharge port 420, ensuring that the coal material slowly falls from the discharge port 420 to the receiving conveyor belt 200 without impacting the receiving conveyor belt 200.

[0064] The transfer chute body 400 and the coal material transfer adjustment assembly 500 thus constituted cooperate with each other. Through the segmented inner wall treatment of the transfer chute body 400 and the cooperation of different adjustment devices, strong friction deceleration at the inlet of the coal material, elastic energy absorption during transition, and low-speed stable flow at the outlet of the coal material are realized, effectively ensuring the buffering and anti-blockage of the coal material, thereby improving the reliability of coal material transfer and transportation.

[0065] In order to enable the coal material to uniformly fall from the discharge port 420 to the receiving conveyor belt 200, the feed inlet 410 of the transfer chute body 400 is slidably connected to the funnel 300, so that the transfer chute body 400 can rotate around the funnel 300, driving the discharge port 420 to rotate synchronously, and spreading the coal material evenly on the receiving conveyor belt 200.

[0066] Combined Figure 2a and Figure 5 , specifically, the end of the funnel 300 is provided with a slide rail 310, and the end of the feed inlet 410, that is, the end of the first-layer spiral channel 430 cooperating with the funnel 300, is provided with a slide ring 411 adapted to the slide rail 410. The slide ring 411 is engaged with the slide rail 410 to stably connect the transfer chute body 400 and the funnel 300. At the same time, the slide ring 411 is connected to a driving motor to drive the slide ring 411 to stably rotate along the slide rail 410, driving the transfer chute body 400 and the discharge port 420 to rotate synchronously, so that the coal material is evenly spread on the receiving conveyor belt 200 by rotation from the discharge port 420.

[0067] Preferably, the rotation direction of the transfer chute body 400 is configured to be consistent with the spiral directions of the first-layer spiral channel 430 and the second-layer spiral channel 440, so that the rotation of the transfer chute body 400 can also provide a centrifugal force for the movement of the coal material in the first-layer spiral channel 430 and the second-layer spiral channel 440, ensuring the stable transfer and transportation of the coal material in the transfer chute body 400.

[0068] Furthermore, a leakage-preventing baffle 320 is provided at the end of the funnel 300 cooperating with the unloading conveyor belt 100 to prevent the coal material on the unloading conveyor belt 100 from falling from the end of the funnel when entering the funnel 300, ensuring the effective transfer of the coal material.

[0069] Combined Figure 2a and Figure 6 , correspondingly, the port of the discharge port 420 is configured to be inclined towards the transfer chute body 400, so that baffles 421 inclined towards the transfer chute body 400 are formed on both sides of the discharge port 420, which can block the coal material and prevent the coal material from flying out from both sides of the discharge port 420 under the action of inertia during the process of falling from the discharge channel 450 to the discharge port 420.

[0070] Furthermore, the caliber of the discharge port 420 gradually expands, which helps the coal material to flow out of the discharge port 420 smoothly and completely, reduces the residue and blockage of the coal material, and at the same time makes the coal material evenly fall on the receiving conveyor belt 200, improving the reliability of the transfer and transportation of the coal material.

[0071] At the same time, combined Figure 1 and Figure 2a , an inclined bottom plate 422 is provided at the bottom of the discharge port 420 and is inclined towards the receiving conveyor belt 200, forming a butt joint with the receiving conveyor belt 200 to ensure that the coal material in the discharge port 420 can accurately and completely fall on the receiving conveyor belt 200 along the inclined bottom plate 422.

[0072] The discharge port 420 thus formed can ensure the uniform transfer of the coal material. At the same time, the transportation direction of the receiving conveyor belt 200 is not restricted, and it can be applicable to the receiving conveyor belt 200 in any transportation direction. It is necessary to ensure that the discharge port 420 is placed above the receiving conveyor belt 200, the rotation range of the discharge port 420 is adapted to the area of the receiving conveyor belt 200, and the inclined bottom plate 422 forms a butt joint with the receiving conveyor belt 200, thereby increasing the application scenarios of this spiral transfer chute.

[0073] In order to ensure the working stability of the transfer chute body 400 and the coal material transfer adjustment assembly 500, this spiral transfer chute further includes a control device (not shown in the figure), and the control device is configured to control the working states of the transfer chute body 400 and the coal material transfer adjustment assembly 500 to improve the reliability of the coal material transfer and transportation.

[0074] Specifically, the control device is connected to the drive motor on the slip ring 411 and can control the working state of the drive motor, thereby controlling the speed at which the slip ring 411 drives the rotary chute body 400 to rotate synchronously, ensuring the stability of coal material transfer and transportation.

[0075] Furthermore, the control device is connected to the coal material driving device 510 and controls the working states of the purging device 511 and the vibrator 512 respectively, so as to control the air source pressure and flow rate provided by the purging device 511 and the vibration intensity and frequency of the vibrator 512 respectively, thereby effectively controlling the movement state and frictional effect of the coal material in the first-layer spiral channel 430 and improving the buffering effect of the coal material.

[0076] Meanwhile, the control device is also connected to the diversion device 520 to control the working state of the rotary deflector 521 or the rotary impeller 522, and control the rotation direction and angle of the rotary deflector 521 or the rotation direction and speed of the rotary impeller 522, thereby effectively controlling the flow rate and resistance of the coal material passing through the transition section 460 and ensuring that the coal material does not accumulate and block in the transition section 460.

[0077] Correspondingly, the control device is also connected to the resistance adjusting device 530 to control the flow rate and pressure of the reverse air flow applied by the air restrictor, providing an appropriate resistance to the coal material in the discharge channel 450 and ensuring that the coal material gently drops from the discharge port 420.

[0078] Here, the control device can be composed of an existing PLC control cabinet or a remote control device to stably and quickly adjust the working states of the rotary chute body 400 and the coal material transfer adjusting component 500, ensuring the buffering and anti-blocking effects of the coal material.

[0079] The following gives an example to illustrate the working process of the present invention in specific applications. It should be noted here that the described content is only a specific application example of this solution and does not limit this solution.

[0080] Combined with Figure 1 and Figure 2a , the coal material is transported on the unloading conveyor belt 100 to the end of the unloading conveyor belt 100 and falls into the funnel 300, and then falls into the rotary chute body 400 through the funnel 300, and the rotary chute body 400 rotates synchronously around the funnel 300.

[0081] Meanwhile, the coal material enters the first-layer spiral channel 430. Since the initial speed of the coal material is relatively large, the first-layer spiral channel 430 generates a relatively large centrifugal force on the coal material, causing the coal material to slide along the friction buffer layer 431 on the inner wall of the first-layer spiral channel 430, improving the frictional buffering effect on the coal material. At the same time, the purging device 511 and / or the vibrator 512 operate synchronously to drive the coal material to move stably and continuously, removing the accumulation of coal material on the friction buffer layer 431, thereby ensuring the smooth movement of the coal material.

[0082] Next, the coal material buffers in the first-layer spiral channel 430. After reducing the impact speed, it enters the transition section 460. The coal material will gradually transition from the spiral motion close to the inner wall of the first-layer spiral channel 430 to a parabolic free fall along the vertically arc-shaped transition section 460, reducing the risk of excessive deceleration and blockage caused by continuous friction. At the same time, the elastic buffer layer 461 on the inner wall of the transition section 460 can effectively absorb the local impact energy caused by the sudden change in the trajectory of the coal material. The diversion device 520 operates synchronously to regulate the flow rate and resistance of the coal material entering the second-layer spiral channel 440, ensuring that the coal material will not accumulate and block.

[0083] Furthermore, the coal material smoothly enters the second-layer spiral channel 440 from the transition section 460. The polished layer 441 on the inner wall of the second-layer spiral channel 440 can reduce the frictional resistance to the coal material, promoting the coal material to slide along a longer rotating path at a stable low speed relying on gravity, and effectively reducing the risk of blockage.

[0084] Finally, under the inertial action of the spiral downward movement, the coal material enters the discharge channel 450 and slides along the discharge channel 450. The resistance adjustment device 530 synchronously applies a reverse air flow to the transportation direction of the coal material to form an air film resistance, ensuring that the coal material slowly drops from the discharge port 420 to the receiving conveyor belt 200 without impacting the receiving conveyor belt 200. At the same time, the discharge port 420 and the transfer chute body 400 rotate synchronously to evenly spread the coal material from the discharge port 420 onto the receiving conveyor belt 200 in a rotating manner, realizing the transfer and transportation of the coal material.

[0085] The multi-modal coal flow adaptive speed regulation device provided by the present invention realizes strong friction deceleration at the inlet of the coal material, transition elastic energy absorption, and polished low-speed stable flow at the outlet through the segmented structure of the transfer chute body 400, the coal material transfer adjustment assembly 500, and the control device cooperating with each other, which can effectively ensure the buffering and anti-blocking of the coal material, thereby improving the reliability of the coal material transfer and transportation.

[0086] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. A multi-modal coal flow adaptive speed regulation device, which is used to cooperate with a discharging conveyor belt and a receiving conveyor belt. A funnel is provided at the end of the discharging conveyor belt. It is characterized in that, including a transfer chute body, which is arranged between the discharging conveyor belt and the receiving conveyor belt. The transfer chute body is formed with a spiral channel with a continuous spiral distribution, and the feed inlet of the transfer chute body is slidably connected to the funnel, and the discharge outlet is placed above the receiving conveyor belt. a coal transfer adjustment component, which is distributed in the transfer chute body and is configured to adjust the conveying state of the coal. a control device, which is configured to control the working state of the coal transfer adjustment component.

2. The multimodal coal flow self-adaptive speed regulation device according to claim 1, wherein The spiral channel includes a first-layer spiral channel, a second-layer spiral channel and a discharge channel. One end of the second-layer spiral channel is connected to the first-layer spiral channel through a transition section, and the other end is connected to the discharge channel.

3. The multi-modal coal flow adaptive speed regulation device according to claim 2, characterized in that, The first-layer spiral channel and the second-layer spiral channel are configured to be continuously distributed in a cylindrical spiral.

4. The multimodal coal flow adaptive speed regulation device according to claim 2, characterized in that, The first-layer spiral channel and the second-layer spiral channel are configured to be continuously distributed in a frustum spiral.

5. The multimodal coal flow adaptive speed regulation device according to claim 2, characterized in that, The discharge channel is configured to be distributed in a rounded L shape.

6. The multimodal coal flow adaptive speed regulation device according to claim 4, wherein A friction buffer layer is provided on the inner wall of the first-layer spiral channel, an elastic buffer layer is provided on the inner wall of the transition section, and a polishing layer is provided on the inner wall of the second-layer spiral channel.

7. The multimodal coal flow adaptive speed regulation device according to claim 6, characterized in that, The coal transfer adjustment component includes a coal driving device distributed in the first-layer spiral channel, a diversion device provided in the transition section, and a resistance adjustment device provided in the discharge channel.

8. The multimodal coal flow adaptive speed regulation device according to claim 7, characterized in that, The coal driving device includes a purging device and / or a vibrator. The diversion device is composed of a rotating deflector or a rotating impeller, and the resistance adjustment device is composed of an air choke.

9. The multimodal coal flow adaptive speed regulation device according to claim 1, characterized in that, A slide rail is provided at the end of the funnel, and a slip ring adapted to the slide rail is provided at the end of the feed inlet.

10. The multimodal coal flow adaptive speed regulation device according to claim 1, characterized in that, The discharge outlet is configured to be inclined towards the transfer chute body and the diameter gradually increases.

Images