Air rolling type rotary material feeder and air rolling type air conveying system

Abstract

The utility model discloses an air rolling type rotary material supply machine and an air rolling type air conveying system, and belongs to the field of bulk material air conveying equipment. According to the air rolling type rotary material feeder, the sealing performance of the blades is enhanced through the upper elastic assemblies of the blades, the blades are not prone to abrasion, and air cannot be leaked even if the blades are abraded to a certain degree; due to the design of the air inlet and the discharge hole in the side plate, the sealing assembly on the blade can be prevented from popping up, and the strength of wind power is enhanced; and the looseness and the rotation strength of the material are effectively improved when the feeder outputs the material. According to the wind rolling type air conveying system, wind power can drive materials to be conveyed in a wind rolling mode, friction between the materials and the wall of the conveying pipe is reduced, the conveying speed of original wind power and air is improved, the service life of the conveying pipe is prolonged, the efficiency of an air feeder is improved, the feeding efficiency is effectively improved, various kinds of energy consumption are reduced, and the energy consumption is reduced during long-distance feeding. And materials are not easy to settle and block.

Description

Technical Field

[0001] The utility model relates to a wind-roll type rotary material feeding machine and a wind-roll type pneumatic conveying system, belonging to the field of bulk material pneumatic conveying equipment. Background Art

[0002] The pneumatic conveying system is a system that uses wind power conversion to transport materials. This system uses the power of wind to transport materials from one place to another. It is usually used in mines, construction sites, grain processing plants and other places that require large-scale material transportation. The working principle of the pneumatic conveying system is to use the power of wind to blow and suck the materials in a sealed pipe, so that it can be transferred from the starting position to the destination, thereby realizing the transportation of materials. Most of the materials are mines, building materials (cement, yellow sand, etc.), powders and particles less than 2cm. Pneumatic conveying systems have the advantages of high efficiency, low maintenance cost, environmental protection and flexibility. They can adapt to different conveying distances and material types.

[0003] In the wind conveying system currently used, materials move straight along the pipeline under the action of wind, that is, the forward path of the materials is parallel to the pipeline. As the conveying distance increases, the wind pressure in the pipeline will gradually decrease. Due to the influence of wind pressure, some materials will adhere to the inside of the pipeline. Over time, this will lead to material accumulation and blockage in the pipeline. In order to avoid blockage, a high-pressure and high-volume conveying configuration is required. The high air supply pressure generates greater pressure to push the materials forward. During the forward process, the materials below push the materials above to continue moving forward. Blockages will still occur over long distances. In addition, during the feeding process, the materials will collide with each other. At the same time, the materials will also collide with the conveying pipeline. Under the condition of high air supply pressure, the collision will intensify, which is not suitable for transmitting fragile materials and will seriously affect the service life of the material conveying pipeline.

[0004] Patent document CN102320477B discloses a pneumatic conveying system that uses an automatic valve for unloading. The material enters the conveying pipeline from the wind-type rotary material feeder by the fan. However, the feeder currently has the following problems: (1) The sealing effect between the blades and the shell of the feeder is poor. The blades and the shell are seriously worn during use, resulting in an increase in the gap between the blades and the shell, which causes air leakage between the blades and the shell, thereby affecting the utilization rate of wind power, high energy consumption and low efficiency of material transmission; (2) It uses an automatic valve for feeding, and the unloading of materials is not uniform, which leads to the material settling easily during long-distance transportation, which may cause blockage, and requires a higher pressure conveying configuration, which is not energy-saving and environmentally friendly; (3) Due to the lack of support, the seal of the feeder causes the elastic parts to fall off during operation and leak air, which reduces production capacity and increases energy consumption; (4) The three-sided ejection parts of the feeder fall off due to wear during use, resulting in excessive connection gaps, causing the equipment to fail to operate. Summary of the invention

[0005] In order to solve one or more of the above problems, the utility model first provides a wind-type rotary material feeder for a wind-type pneumatic conveying system, and the technical solution is as follows:

[0006] A wind-type rotary material feeder of a wind-type wind conveying system comprises: a housing, a rotating shaft, an impeller, and a first drive motor; the rotating shaft is mounted on the housing through a bearing and a sealing assembly, the impeller is mounted on the rotating shaft, a transmission wheel is fixedly mounted on one end of the rotating shaft outside the housing, and the transmission wheel is driven by a driving wheel of the first drive motor;

[0007] The shell comprises a cover shell, a first side panel and a second side panel, and the two side panels are installed on both sides of the cover shell; a feed port is provided at the top of the shell; a fan-shaped air inlet and a feed port are respectively provided at the lower parts of the two side panels, and the four corners of the air inlet and the feed port are set as rounded corners, the air inlet is provided on the first side panel, and the feed port is provided on the second side panel; a line connecting the center of the air inlet and the center of the first side panel is located on the vertical line of the center of the first side panel, and the bottom of the air inlet is 2 to 10 cm away from the bottom edge of the first side panel, and the top of the air inlet is located at a radius of 1 / 4 to 1 / 2 from the center of the first side panel; a line connecting the center of the feed port and the center of the second side panel forms an angle of 2 to 15° with the vertical line of the center of the second side panel, the bottom of the feed port is 2 to 10 cm away from the edge of the second side panel, and the top of the feed port is located at a radius of 1 / 4 to 1 / 2 from the center of the second side panel.

[0008] In one embodiment, the impeller includes a hub and blades, the blades are fixedly mounted on the hub, a groove or a boss is provided on the axial end face of the hub, corresponding bosses or grooves are provided on the inner walls at corresponding positions of the first side plate and the second side plate, and the grooves and bosses cooperate with each other to achieve sealing.

[0009] In one embodiment, grooves are provided on the top and both sides of the blade for installing and fixing an elastic sealing assembly, wherein the elastic sealing assembly includes an elastic member and a pop-up member, wherein the pop-up member is connected to the elastic member, and the pop-up member is retracted and expanded under the elastic force of the elastic member so that the blade fits tightly with the shell of the wind turbine type rotary material feeder.

[0010] In one embodiment, guide support rods are provided in the grooves at the top and both sides of the blade to support and guide the elastic member.

[0011] In one embodiment, the elastic member is a metal spring, a hydraulic spring or a gas spring.

[0012] In one embodiment, the ejection member is made of wear-resistant material.

[0013] In one embodiment, the contact surfaces between adjacent ejection members are configured to be stepped.

[0014] In one embodiment, the feed inlet, air inlet and feed port are arranged at other positions of the shell.

[0015] In one embodiment, a sealing ring is disposed in the groove on the axial end surface of the hub or in the grooves on the first side plate and the second side plate.

[0016] In one embodiment, the number of the grooves or bosses on the hub is 1 to 5.

[0017] In one embodiment, the transmission wheel and the driving wheel are chain driven or gear driven.

[0018] In one embodiment, it includes the above-mentioned wind turbine type rotary material feeder, rotary feeding device, air inlet pipe, material transmission pipeline and fan, the rotary feeding device is connected to the wind turbine type rotary material feeder, the air inlet of the wind turbine type rotary material feeder is connected to the fan through the air inlet pipe, the feeding port of the wind turbine type rotary material feeder is connected to the material transmission pipeline, and the material transmission pipeline is used to transport the material to the destination.

[0019] In one embodiment, the rotary feeding device includes an impeller, a shell, a rotating shaft and a second driving motor. A feed port is provided on the top of the shell, and a discharge port is provided on the bottom.

[0020] The beneficial effects of the utility model are:

[0021] 1. The design of the air inlet and the discharge port on the side panel of the spiral wind rotary material feeder of the spiral wind conveying system of the utility model can prevent the elastic sealing component on the blade from popping out, and the specific position of the discharge port can make the wind direction form a specific deflection angle, thereby enhancing the rotation strength of the spiral wind and improving the conveying speed and distance of the material under the same wind force.

[0022] 2. The wind-type rotary material feeder provided by the utility model improves the sealing performance through the elastic sealing components on the blades and the groove boss design on the hub and the side plates, can prevent wind leakage in all directions, improve the utilization rate of wind, and reduce energy consumption.

[0023] 3. The rotary feeding device of the pneumatic conveying system of the utility model can well break up the materials when unloading, and the materials evenly enter the wind-type rotary material feeder, so that the materials are not easy to settle during long-distance transmission, which can increase the conveying speed and distance of the materials, is more energy-saving and environmentally friendly, and improves the use efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the description of the embodiments 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 creative work.

[0025] Figure 1 It is a schematic diagram of the overall structure of the air delivery system of the utility model;

[0026] Figure 2 It is a structural schematic diagram of the utility model wind-type rotary material feeding machine;

[0027] Figure 3 It is a structural schematic diagram of the first side plate of the utility model;

[0028] Figure 4 It is a structural schematic diagram of the second side plate of the utility model;

[0029] Figure 5 It is a schematic diagram of the structure of the impeller 250 of the utility model;

[0030] Figure 6 It is a schematic diagram of the structure of the blade 252 of the utility model;

[0031] Among them, 100. rotary feeding device, 110. feeding port of feeding device, 120. impeller, 130. discharge port;

[0032] 200. Wind-type rotary material feeder, 210. Feed port of wind-type rotary material feeder, 220. First side plate, 221. Air inlet, 230. Second side plate, 231. Feed port, 240. Shell, 250. Impeller, 251. Hub, 252. Blade, 252a. Pop-up member, 252b. Elastic member, 252c. Guide rod, 260. Air return port; A. Anti-slip structure;

[0033] 300. Air return pipe;

[0034] 400. A first drive motor;

[0035] 500. Materials. DETAILED DESCRIPTION

[0036] In order to make the purpose, technical solution and advantages of the present invention more clear, the implementation mode of the present invention will be further described in detail below with reference to the accompanying drawings.

[0037] Embodiment 1:

[0038] This embodiment provides a wind-type rotary material feeding machine, such as Figure 1-5 shown.

[0039] like Figure 1 and 2 As shown, the wind turbine rotary material feeder includes a housing 240, a rotating shaft, an impeller 250 and a first drive motor 400. The rotating shaft is installed on the housing 240 through a bearing and a sealing assembly. The impeller 250 is installed on the rotating shaft through a pin connection. A transmission wheel is fixedly installed at one end of the rotating shaft outside the housing 240. The transmission wheel is driven by a driving wheel on the output shaft of the first drive motor 400, and the transmission wheel and the driving wheel are chain driven.

[0040] like Figures 2 to 4 As shown, the shell 240 includes a cover shell, a first side plate 220, and a second side plate 230, and the two side plates are fixedly installed on both sides of the cover shell in a movable and detachable manner; the shell 240 is provided with a feed port 210, an air inlet 221 and a feeding port 231; the specific setting positions of the three can be set according to the actual scene requirements, for example, the feed port 210 can be opened at the top or side of the shell 240; the fan-shaped air inlet 221 and the feeding port 231 can be opened at the lower part of the two side plates of the shell 240, and the four corners of the air inlet 221 and the feeding port 231 are rounded, the air inlet 221 is opened on the first side plate 220, and the feeding port 231 is opened on the second side plate 230; as shown Figure 1 As shown, the line connecting the center of the air inlet 221 and the center of the first side plate 220 is located on the vertical line of the center of the first side plate 220, the bottom of the air inlet 221 is 2 to 10 cm away from the edge of the first side plate 220, and the top is located at 1 / 4 to 1 / 2 of the radius of the side plate; Figure 2 As shown, the line connecting the center of the feed port 231 and the center of the second side plate 230 is not on the vertical line of the center of the second side plate 230, and forms an angle of 2 to 15° with the vertical line of the center of the second side plate 230, preferably 5 to 8°. The bottom of the feed port 231 is 2 to 10 cm away from the edge of the second side plate 230, and the top is located at 1 / 4 to 1 / 2 of the radius of the second side plate 230.

[0041] Since the line connecting the center of the feed port 231 and the center of the second side plate 230 forms an angle of 2 to 15° with the vertical line of the center of the second side plate 230, and the uppermost opening position is located at a radius of 1 / 4 to 1 / 2 from the center position, and the lowermost opening position is located at a distance of 2 to 10 cm from the bottom edge of the side, the direction of the wind can be deflected at a specific angle to form a spiral wind in the material conveying pipeline, and the settings of the uppermost and lowermost opening positions can enhance the rotation intensity of the spiral wind, thereby driving the material to be transported forward in a spiral manner, thereby avoiding the phenomenon in the prior art that the material below pushes the material above to be transported forward when the material moves straight along the material conveying pipeline, thereby avoiding the problem of material blocking the pipeline.

[0042] like Figure 5As shown, the impeller 250 includes a hub 251 and blades 252. The blades 252 are fixedly mounted on the hub 251. The axial end face of the hub 251 is provided with 1 to 5 grooves or bosses. The first side plate 220 and the second side plate 230 are correspondingly provided with 1 to 5 bosses or grooves that cooperate with the grooves or bosses on the hub. There is a certain gap between the grooves and the bosses for installing a sealing ring to prevent air leakage between the hub 251 and the housing 240. The grooves and bosses are both circular around the center of the axial end face.

[0043] It should be noted that if a groove is provided on the axial end face of the hub 251, corresponding bosses are provided on the inner walls of the first side plate 220 and the second side plate 230; if a boss is provided on the axial end face of the hub 251, corresponding grooves are provided on the inner walls of the first side plate 220 and the second side plate 230, and the grooves and bosses cooperate with each other to achieve sealing.

[0044] like Figure 6 As shown, grooves are provided on the top and both sides of the blade 252, and a guide support rod 252c is provided in the groove for installing and fixing the elastic sealing assembly to prevent the metal spring from falling off and leaking air; the support rod 252c is set by the technician to a suitable length value according to the actual application scenario; the elastic sealing assembly includes a pop-up member 252a and an elastic member 252b, and the pop-up member 252a is made of wear-resistant material; wherein the elastic member 252b is installed at the bottom of the groove of the impeller 250, and the pop-up member 252a is connected to the elastic member 252b, and the pop-up member 252a can be retracted under the elastic force of the elastic member 252b so that the edge of the blade fits tightly with the shell. The elastic sealing assembly can effectively avoid the gap between the blade 252 and the shell 240, prevent the blade 252 from leaking air, and reduce the wear of the blade 252; even if the blade 252 is worn to a certain extent, the design of the elastic sealing assembly still prevents the blade 252 from leaking air. After the elastic sealing assembly is worn, it is only necessary to disassemble the blade 252 and replace the sealing assembly without replacing the blade 252. The connection between the top ejection piece and the side ejection piece is provided with an anti-drop structure A to prevent the ejection piece from falling off due to wear. Therefore, the sealing component design of the blade 252 on the wind-type rotary material feeder 200 can greatly improve the utilization rate of the wind power of the air conveying system, thereby improving the conveying efficiency and saving costs.

[0045] One implementation of the anti-dropping structure A is a stepped contact surface, that is, the contact surface between adjacent pop-up members is set to be stepped to improve the integrity of the pop-up members and reduce the possibility of their falling off.

[0046] The air inlet 221 and the feed port 231 opened at the lower part of the two side plates of the housing 240 of the wind-type rotary material feeder of the utility model are designed to be located 2 to 10 cm away from the bottom edge of the side, which can prevent the elastic parts on the blades from popping out and increase the service life of the wind-type rotary material feeder.

[0047] It should be noted that the elastic member 252b can be a metal spring, a hydraulic spring or a gas spring; when the elastic member 252b is a metal spring, the pop-up member 252a and the elastic member 252b can be connected by welding, or by setting a fixing pile in the groove and on the pop-up member and installing the metal spring on the fixing pile; when the elastic member 252b is a hydraulic spring or a gas spring, the connecting surface of the pop-up member 252a and the hydraulic spring also plays the role of sealing the groove, so that the liquid and gas are sealed in the groove. When a metal spring is used, a number of springs can be set according to the size of the pop-up member, so that the overall force of the pop-up member is uniform.

[0048] Working principle of this utility model:

[0049] The wind-type rotary material feeder provided by the present application sets a fan-shaped air inlet and a feed port, and optimizes the position and size of the air inlet and the feed port according to actual use experience, so that the direction of the wind is deflected at a specific angle, forming a spiral wind in the material conveying pipeline, and the setting of the uppermost and lowermost opening positions can enhance the rotation strength of the spiral wind, thereby driving the material to be transported forward in a spiral manner, thereby avoiding the phenomenon in the prior art that the lower material pushes the upper material to be transported forward when the material moves straight along the material conveying pipeline, thereby avoiding the problem of material blocking the pipeline; further, the wind-type rotary material feeder provided by the present application sets a fan-shaped air inlet and a feed port, and optimizes the position and size of the air inlet and the feed port according to actual use experience, so that the direction of the wind is deflected at a specific angle, forming a spiral wind in the material conveying pipeline, and the setting of the uppermost and lowermost opening positions can enhance the rotation strength of the spiral wind, thereby driving the material to be transported forward in a spiral manner, thereby avoiding the phenomenon in the prior art that the material moves straight along the material conveying pipeline, thereby avoiding the problem of material blocking the pipeline; further, the wind-type rotary material feeder provided by the present application The material feeding machine adopts sealed blades. In order to address the problem of blade edge wear and loss caused by long-term rotational contact between the blade edge and the inner surface of the shell, which in turn leads to the inability to achieve sealing, the present application uses an elastic part to always apply an outward elastic force to the pop-up part at the edge, so that the edge of the blade is always in close fit with the external shell to achieve sealing; considering that adjacent pop-up parts on the blade may fall off due to interaction during use, the contact surface between the pop-up part corresponding to the top of the blade and the pop-up part corresponding to the side of the blade in the present application adopts a stepped design, and adopts an anti-fall-off design similar to the stepped contact surface in the construction industry to reduce the probability of falling off.

[0050] Embodiment 2:

[0051] like Figure 1 As shown, this embodiment provides a wind-type pneumatic conveying system.

[0052] The wind conveying system includes a rotary feeding device 100, a cyclone type rotary material feeder 200 and a fan. The rotary feeding device 100 is connected to the cyclone type rotary material feeder 200, and the rotary feeding device 100 evenly puts the material into the cyclone type rotary material feeder 200. The air inlet of the cyclone type rotary material feeder 200 can be connected to the fan through an air inlet pipe, and the feeding port of the cyclone type rotary material feeder 200 is connected to the material transmission pipeline. When the wind conveying system is working, the material 500 evenly enters the cyclone type rotary material feeder 200 from the rotary feeding device 100, and the fan provides wind force to send the material 500 out of the feeding port 231 from the air inlet 211, and the material 500 is spirally transported to the destination in the material transmission pipeline.

[0053] like Figure 1 and 2 As shown, the wind turbine rotary material feeder 200 includes a housing 240, a rotating shaft, an impeller 250 and a first drive motor 400. The rotating shaft is mounted on the housing 240 through a bearing and a sealing assembly. The impeller 250 is mounted on the rotating shaft through a pin connection. A transmission wheel is fixedly mounted on one end of the rotating shaft outside the housing 240. The transmission wheel is driven by a driving wheel on the output shaft of the first drive motor 400. The transmission wheel and the driving wheel are chain driven or gear driven.

[0054] like Figure 2-4 As shown, the shell 240 includes a cover shell, a first side plate 220, and a second side plate 230, and the two side plates are fixedly installed on both sides of the cover shell in a movable and detachable manner; the top of the shell 240, but not limited to other parts of the top, is provided with a feed port; the lower part of the two side plates of the shell 240, but not limited to other parts of the lower part, are respectively provided with a fan-shaped air inlet 221 and a feed port 231, and the four corners of the air inlet 221 and the feed port 231 are rounded, the air inlet 221 is provided on the first side plate 220, and the feed port 231 is provided on the second side plate 230; as shown Figure 1 As shown, the line connecting the center of the air inlet 221 and the center of the first side plate 220 is located on the vertical line of the center of the first side plate 220, the bottom of the air inlet 221 is 2 to 10 cm away from the edge of the first side plate 220, and the top is located at 1 / 4 to 1 / 2 of the radius of the side plate; Figure 2As shown, the line connecting the center of the feed port 231 and the center of the second side plate 230 is not on the vertical line of the center of the second side plate 230, and forms an angle of 2 to 15° with the vertical line of the center of the second side plate 230, preferably 5 to 8°. The bottom of the feed port 231 is 2 to 10 cm away from the edge of the second side plate 230, and the top is located at a radius of 1 / 4 to 1 / 2 of the center position of the second side plate 230. Since the line connecting the center of the feed port 231 and the center of the second side plate 230 forms an angle of 2 to 15° with the vertical line of the center of the second side plate 230, and the top of the opening position is located at a radius of 1 / 4 to 1 / 2 of the center position, and the bottom of the opening position is located at a distance of 2 to 10 cm from the bottom edge of the side, the direction of the wind can be deflected at a certain angle, forming a spiral wind in the material conveying pipeline, thereby driving the material to be conveyed forward in a spiral manner, so as to avoid the phenomenon in the prior art that the lower material pushes the upper material to be conveyed forward when the material moves straight along the material conveying pipeline, thereby avoiding the problem of material blocking the pipeline.

[0055] like Figure 5 As shown, the impeller 250 includes a hub 251 and blades 252. The blades 252 are fixedly mounted on the hub 251. The axial end surface of the hub 251 is provided with 1 to 5 grooves or bosses. The first side plate 220 and the second side plate 230 are correspondingly provided with 1 to 5 bosses or grooves that cooperate with the grooves or bosses on the hub. There is a certain gap between the grooves and the bosses for installing a sealing ring to prevent air leakage between the hub 251 and the housing 240.

[0056] like Figure 6 As shown, grooves are provided on the top and both sides of the blade 252 for installing an elastic sealing assembly; the elastic sealing assembly includes a pop-up member 252a and an elastic member 252b, and the pop-up member 252a is made of wear-resistant material; wherein the elastic member 252b is installed at the bottom of the groove of the impeller 250, and the pop-up member 252a is connected to the elastic member 252b, and the pop-up member 252a can be extended and retracted under the elastic force of the elastic member 252b so that the edge of the blade and the shell are closely fitted. The elastic sealing assembly can effectively avoid the gap between the blade 252 and the shell 240, prevent the blade 252 from leaking air, and reduce the wear of the blade 252; even if the blade 252 is worn to a certain extent, the design of its elastic sealing assembly still prevents the blade 252 from leaking air. After the elastic sealing assembly is worn, it is only necessary to disassemble the blade 252 and replace the sealing assembly without replacing the blade 252. Therefore, the sealing assembly design of the blade 252 on the wind-type rotary material feeder 200 can greatly improve the utilization rate of the wind force of the air conveying system, thereby improving the conveying efficiency, and also saving costs.

[0057] The design of the air inlet 221 and the feed port 231 opened at the lower part of the two side plates of the housing 240 of the wind-type rotary material feeder of the utility model, with the lowest opening position being located 2 to 10 cm away from the bottom edge of the side, can prevent the elastic parts on the blades from popping out and increase the service life of the wind-type rotary material feeder.

[0058] It should be noted that the elastic part 252b can be a metal spring, a hydraulic spring or a gas spring; when the elastic part 252b is a metal spring, the pop-up part 252a and the elastic part 252b can be connected by welding or fitting, and the metal spring can be installed on the guide support rod by setting a fixed guide support rod 252c in the groove; when the elastic part 252b is a hydraulic spring or a gas spring, the connecting surface of the pop-up part 252a and the hydraulic spring also plays the role of sealing the groove, so that the liquid and gas are sealed in the groove.

[0059] like Figure 1 As shown, the rotary feeding device 100 is similar in structure to the cyclone type rotary material feeder 200, including a housing, an impeller 120, a rotating shaft and a second drive motor. The structure of the impeller 120 is the same as that of the impeller 250. A feed port 110 is provided on the upper part of the housing, and a discharge port 130 is provided on the lower part. The transmission wheel on the rotating shaft is connected to the driving wheel on the second drive motor through a chain, and the second drive motor drives the rotating shaft to rotate. The rotary feeding device 100 can break up the material so that the material falls evenly into the cyclone type rotary material feeder 200, which can greatly improve the efficiency of material transportation and prevent the sedimentation of the material during long-distance feeding.

[0060] Compared with the technical solution in patent document CN102320477B, the wind-type wind conveying system provided by the utility model can increase production capacity by more than 60% and save more than 50% of energy. In addition, when the wind-type wind conveying system of the utility model is used for long-distance feeding, the material is not easy to settle or be damaged, and can be used continuously in a high temperature environment. The farthest distance can be delivered is more than 500 meters, and the vertical height of the inclined surface can be delivered to more than 50 meters.

[0061] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A wind-type rotary material feeder, characterized in that: include: A housing, a rotating shaft, an impeller, and a first drive motor; the rotating shaft is mounted on the housing through a bearing and a sealing assembly, the impeller is mounted on the rotating shaft, and a transmission wheel is fixedly mounted on one end of the rotating shaft outside the housing, and the transmission wheel is driven by the driving wheel of the first drive motor; The shell comprises a cover shell, a first side panel and a second side panel, and the two side panels are installed on both sides of the cover shell; a feed port is provided at the top of the shell; a fan-shaped air inlet and a feed port are respectively provided at the lower parts of the two side panels, and the four corners of the air inlet and the feed port are set as rounded corners, the air inlet is provided on the first side panel, and the feed port is provided on the second side panel; a line connecting the center of the air inlet and the center of the first side panel is located on the vertical line of the center of the first side panel, and the bottom of the air inlet is 2 to 10 cm away from the bottom edge of the first side panel, and the top of the air inlet is located at a radius of 1 / 4 to 1 / 2 from the center of the first side panel; a line connecting the center of the feed port and the center of the second side panel forms an angle of 2 to 15° with the vertical line of the center of the second side panel, the bottom of the feed port is 2 to 10 cm away from the edge of the second side panel, and the top of the feed port is located at a radius of 1 / 4 to 1 / 2 from the center of the second side panel.

2. The wind-type rotary material feeder according to claim 1, characterized in that: The impeller includes a hub and blades. The blades are fixedly mounted on the hub. A groove or a boss is provided on the axial end face of the hub. Corresponding bosses or grooves are provided on the inner walls at corresponding positions of the first side plate and the second side plate. The groove and the boss cooperate with each other to achieve sealing.

3. The wind-type rotary material feeding machine according to claim 2, characterized in that: The top and both sides of the blade are provided with grooves for installing and fixing the elastic sealing assembly; the elastic sealing assembly includes an elastic member and a pop-up member, the pop-up member is connected to the elastic member, and the contact surface between adjacent pop-up members is set in a stepped shape. The pop-up member is expanded and contracted under the elastic force of the elastic member so that the blade fits tightly with the shell of the wind-type rotary material feeder.

4. The wind-type rotary material feeding machine according to claim 3, characterized in that: Guiding support rods are arranged in the grooves at the top and both sides of the blade to support and guide the elastic member.

5. The wind-type rotary material feeding machine according to claim 4, characterized in that: The elastic member is a metal spring, a hydraulic spring or a gas spring.

6. The wind-type rotary material feeding machine according to claim 2, characterized in that: A sealing ring is arranged in the groove on the wheel hub, and the number of the grooves or bosses is 1 to 5.

7. The wind-type rotary material feeding machine according to claim 1, characterized in that: The feed port is arranged on the top of the shell, and the air inlet and the feed port are arranged on the first side plate and the second side plate of the shell respectively.

8. The wind-type rotary material feeding machine according to claim 1, characterized in that: The transmission wheel and the driving wheel are chain driven or gear driven.

9. A wind conveying system, characterized in that: The wind conveying system includes the wind-type rotary material feeder, rotary feeding device, air inlet pipe, material transmission pipeline and fan as described in any one of claims 1-8, the rotary feeding device is connected to the wind-type rotary material feeder, the air inlet of the wind-type rotary material feeder is connected to the fan through the air inlet pipe, the feeding port of the wind-type rotary material feeder is connected to the material transmission pipeline, and the material transmission pipeline is used to transport the material to the destination.

10. The wind conveying system according to claim 9, characterized in that: The rotary feeding device comprises an impeller, a shell, a rotating shaft and a second driving motor. A feeding port is arranged above the shell, and a discharging port is arranged below the shell.

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