A barite powder conveying and feeding system

Abstract

The present invention relates to the field of conveying and feeding, and discloses a barite powder conveying and feeding system, comprising: a feeding rack; a conveying pipe arranged on the feeding rack, the conveying pipe being communicated with the hopper of the feeding rack; a screw blade arranged in the conveying pipe; the cloth bag can dynamically adjust its state during the powder conveying process, tighten from the middle and form an hourglass shape when filling the powder, press the powder and discharge the air in the cloth bag, thereby improving the density of the powder, enabling the barite powder to form a group, and reducing the escape of dust when the powder is released from the discharge port subsequently. In addition, when the cloth bag is released, it can automatically shake off the powder adhering to the surface, avoid powder accumulation and affect exhaust, and ensure the smoothness and continuity of the subsequent conveying process. The present invention reduces the waste caused by dust generation during the conveying and feeding of barite powder, effectively controls dust leakage, improves the operating environment, and enhances the safety and stability of the overall system.

Description

Technical Field

[0001] The present invention relates to the technical field of conveying and feeding, and particularly relates to a barite powder conveying and feeding system. Background Art

[0002] Barite powder is a fine powder processed from barite ore, and its main component is barium sulfate. Due to its excellent physical and chemical properties, barite powder is widely used in industries such as oil and gas drilling, coatings, plastics, rubber, building materials, etc. In oil drilling, barite powder is used as a mud weighting agent to help control downhole pressure and prevent blowouts.

[0003] In oil drilling, the use of barite powder begins with mixing it with water and other additives to form a mud base fluid. According to the drilling depth and formation pressure requirements, an appropriate amount of barite powder is added to increase the density of the mud, thereby effectively resisting downhole pressure. The mixed mud is transported through the drilling pipe to the wellhead, flows through the drill bit and brings back the cuttings generated on the ground. During the drilling process, the density, viscosity, and fluidity of the mud are continuously monitored to ensure that its performance meets the requirements, and the dosage of barite powder is adjusted in a timely manner. The addition of barite powder not only helps to maintain the wellhead pressure but also prevents accidents such as blowouts, ensuring a safe and efficient drilling process.

[0004] During the oil drilling process, using a screw conveyor to transport barite powder to a mixing tank is a common material conveying method. However, due to the influence of air flow and mechanical friction on the powder particles during the conveying process, a large amount of powder mist is often generated. This powder mist may not only cause material loss but also cause dust pollution to the operating environment. If the discharge port of the screw conveyor is directly inserted into a sealed mixing tank, the sealing system may increase the difficulty of maintenance and cleaning. In addition, the internal pressure of the sealed tank may change with material transportation and chemical reactions, and the pressure is not easy to control. The pressure inside the tank during the transportation process will be transmitted to the screw conveyor device, affecting the transportation of barite powder. Therefore, a solution for suppressing dust at the discharge port needs to be introduced in the feeding system. Summary of the Invention

[0005] In view of the deficiencies of the prior art, the present invention provides a barite powder conveying and feeding system, aiming to alleviate the above problems to at least a certain extent.

[0006] The above technical objectives of the present invention are achieved through the following technical solutions:

[0007] A barite powder conveying and feeding system includes:

[0008] A feeding rack;

[0009] A conveying pipe provided on the feeding rack, and the conveying pipe is communicated with the hopper of the feeding rack;

[0010] The auger blade disposed within the conveying pipe;

[0011] The dust suppression cylinder disposed at one end of the conveying pipe, communicating with the conveying pipe. A plurality of exhaust ports are formed on the outer wall of the dust suppression cylinder. A feed port is formed at the top of the dust suppression cylinder, and a discharge port is formed at the bottom of the dust suppression cylinder;

[0012] The cloth bag disposed within the dust suppression cylinder, with an upper cavity and a lower cavity formed therein;

[0013] The dust suppression component disposed within the dust suppression cylinder, capable of contracting the middle position of the cloth bag to discharge the air in the powder within the cloth bag;

[0014] The release component disposed within the dust suppression cylinder, capable of controlling the opening and closing of the feed port and the discharge port;

[0015] A driving component is disposed between the feeding rack and the conveying pipe, capable of driving the auger blade to rotate. The dust suppression component can intermittently retract and release the cloth bag during the rotation of the auger blade;

[0016] Wherein, the dust suppression component can cause the release component to open the feed port when contracting the cloth bag, close the feed port and the discharge port when releasing the cloth bag, and cause the release component to open the discharge port when contracting the cloth bag to a preset value.

[0017] Preferably, the dust suppression component includes a rotating shaft disposed within the dust suppression cylinder. A first traction rope is connected to the rotating shaft, and one end of the first traction rope is connected to the cloth bag at the middle position of the inner wall of the cloth bag.

[0018] Preferably, the dust suppression component further includes two fixing rings connected within the dust suppression cylinder. A connecting ring is provided inside the fixing ring. A preset distance is provided between the fixing ring and the connecting ring. A limiting rod is connected to the fixing ring. One end of the cloth bag passes through the gap between the fixing ring and the connecting ring and is connected with a moving ring. The moving ring is slidably connected to the limiting rod. A first spring is connected between the moving ring and the fixing ring. The connecting ring is connected to the limiting rod.

[0019] Preferably, the release component includes an iris opening and closing mechanism disposed at the discharge port, and a communicating pipe located within the feed port. The communicating pipe communicates with the conveying pipe. A guiding ring is provided within the communicating pipe. A first lead screw is provided on the rotating shaft, and a threaded pipe slidably connected to the communicating pipe is threadedly connected to the first lead screw.

[0020] Preferably, a plurality of connecting grooves are formed in the outer wall of the rotating shaft. A ejector rod is slidably sleeved in the connecting groove. A second spring is connected between the ejector rod and the connecting groove. A jacking groove adapted to the ejector rod is formed in the inner wall of the first lead screw. The jacking groove is a semi-spherical groove.

[0021] Preferably, the iris opening and closing mechanism includes a fixing part connected to the discharge port. A first sliding rail is formed in the fixing part. A rotating part is arranged at the bottom of the fixing part. A second sliding rail is formed in the rotating part. An iris blade is arranged between the fixing part and the rotating part. A slider slidably connected to the first sliding rail is arranged at the top of the iris blade. A sliding shaft slidably connected to the second sliding rail is connected to the iris blade.

[0022] Preferably, a connecting shaft is rotatably connected to the fixing part. A first gear is arranged on the connecting shaft. A side opening is formed in the outer wall of the rotating part. A second gear meshing with the first gear is connected in the side opening. The first gear extends into the side opening. A second towing rope is connected to the rotating shaft. One end of the second towing rope is wound around the connecting shaft.

[0023] Preferably, a second lead screw is threadedly connected to the connecting shaft. A third spring is connected between the second lead screw and the connecting shaft. The second towing rope is wound around the second lead screw. A limiting ring is connected to the connecting shaft. The limiting ring is located at the bottom of the second lead screw. A connecting block is connected to the fixing part. The connecting shaft is rotatably connected to the connecting block. A fourth spring is connected between the first gear and the connecting block. The elastic potential energy of the fourth spring is greater than that of the third spring.

[0024] Preferably, the driving component includes a conveying shaft rotatably connected in the conveying pipe. The auger blade is connected to the conveying shaft. A motor is connected to the conveying pipe. A chain is arranged between the driving shaft of the motor and the conveying shaft.

[0025] Preferably, the driving component further includes a third gear rotatably connected in the dust suppression cylinder. A fifth spring is connected between the third gear and the dust suppression cylinder. The rotating shaft is fixedly connected to the third gear. A transmission shaft is rotatably connected to the conveying pipe. A transmission gear set is arranged between the transmission shaft and the conveying shaft. A fourth gear meshing with the third gear is connected to the bottom of the transmission shaft. The fourth gear is an incomplete gear. A guiding blade is connected to the rotating shaft and is located in the guiding ring.

[0026] In summary, the present invention mainly has the following beneficial effects:

[0027] By setting up a dust suppression cylinder, a cloth bag and dust suppression components, the present invention can effectively solve the problem of powder mist generated during the process of screw conveyor transporting barite powder due to mechanical friction and air flow in the prior art. First of all, through the design of the dust suppression cylinder and the cloth bag, the capture and filtration of dust during the transportation of barite powder are realized, avoiding the outward diffusion of dust and reducing dust pollution. Secondly, the cloth bag can dynamically adjust its state during the transportation of powder materials. When filling the powder materials, it tightens in the middle and forms an hourglass shape, compressing the powder materials and discharging the air in the cloth bag, thereby improving the density of the powder materials, making the barite powder materials form agglomerates, and reducing the escape of dust when the powder materials are released from the discharge port subsequently. In addition, when the cloth bag is released, it can automatically shake off the powder materials adhering to the surface, avoiding the accumulation of powder materials and affecting the exhaust, ensuring the smoothness and continuity of the subsequent transportation process. The present invention reduces the waste caused by dust generation during the transportation and feeding of barite powder, effectively controls dust leakage, improves the operation environment, and enhances the safety and stability of the overall system. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 is a schematic diagram of the overall structure of the present invention;

[0029] Figure 2 is a schematic cross-sectional view of the overall structure of the present invention;

[0030] Figure 3 is a schematic cross-sectional view of a partial structure of the present invention Figure 1 ;

[0031] Figure 4 is a schematic cross-sectional view of a partial structure of the present invention Figure 2 ;

[0032] Figure 5 is a schematic cross-sectional view of a partial structure of the present invention Figure 3 ;

[0033] Figure 6 is Figure 5 a partially enlarged schematic view of the local structure at A in

[0034] Figure 7 is a schematic diagram of the iris opening and closing mechanism structure of the present invention;

[0035] Figure 8 is an exploded view of the iris opening and closing mechanism of the present invention Figure 1 ;

[0036] Figure 9 is an exploded view of the iris opening and closing mechanism of the present invention Figure 2 ;

[0037] Figure 10 is a schematic diagram of the connecting shaft structure of the present invention.

[0038] Reference Signs:

[0039] 100, Loading rack; 101, Delivery pipe; 102, Screw blade; 103, Dust suppression cylinder; 104, Exhaust port; 105, Feed inlet; 106, Discharge outlet; 107, Cloth bag; 108, Upper cavity; 109, Lower cavity;

[0040] 200, Rotating shaft; 201, First traction rope; 202, Fixed ring; 203, Connecting ring; 204, Limiting rod; 205, Moving ring; 206, First spring;

[0041] 300, Iris opening and closing mechanism; 301, Connecting pipe; 302, Guide ring; 303, First lead screw; 304, Threaded pipe; 305, Connecting groove; 306, Ejector rod; 307, Second spring; 308, Top groove;

[0042] 400, Fixed part; 401, First slide rail; 402, Rotating part; 403, Second slide rail; 404, Iris fan blade; 405, Slide block; 406, Slide shaft; 407, Connecting shaft; 408, First gear; 409, Side opening; 410, Second gear; 411, Second traction rope; 412, Second lead screw; 413, Third spring; 414, Limiting ring; 415, Connecting block; 416, Fourth spring;

[0043] 500, Delivery shaft; 501, Motor; 502, Chain; 503, Third gear; 504, Fifth spring; 505, Transmission shaft; 506, Transmission gear set; 507, Fourth gear; 508, Guide vane. Detailed implementation manners

[0044] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0045] Refer to Figures 1 - 10 , a barite powder conveying and loading system, including:

[0046] Loading rack 100;

[0047] The delivery pipe 101 provided on the loading rack 100, and the delivery pipe 101 is communicated with the hopper of the loading rack 100;

[0048] The screw blade 102 provided in the delivery pipe 101;

[0049] The dust suppression cylinder 103 provided at one end of the conveying pipe 101 is communicated with the conveying pipe 101. A plurality of exhaust ports 104 are formed on the outer wall of the dust suppression cylinder 103. A feed inlet 105 is formed at the top of the dust suppression cylinder 103, and a discharge outlet 106 is formed at the bottom of the dust suppression cylinder 103;

[0050] The cloth bag 107 provided in the dust suppression cylinder 103 has an upper cavity 108 and a lower cavity 109 formed therein;

[0051] The dust suppression component provided in the dust suppression cylinder 103 is used to contract the middle position of the cloth bag 107 to discharge the air in the powder in the cloth bag 107;

[0052] The release component provided in the dust suppression cylinder 103 is used to control the opening and closing of the feed inlet 105 and the discharge outlet 106;

[0053] A driving component is provided between the feeding rack 100 and the conveying pipe 101, which is used to drive the auger blade 102 to rotate. The dust suppression component can intermittently retract and release the cloth bag 107 during the rotation of the auger blade 102;

[0054] Among them, the dust suppression component can open the feed inlet 105 when contracting the cloth bag 107, close the feed inlet 105 and the discharge outlet 106 when releasing the cloth bag 107, and the dust suppression component can open the discharge outlet 106 when contracting the cloth bag 107 to a preset value;

[0055] By setting up the dust suppression cylinder 103, during application, the discharge port 106 at the bottom of the dust suppression cylinder 103 can be connected to a mixing tank used for mixing barite powder with water and other additives (such as polymers to prevent mud from losing water). The barite powder to be conveyed and fed is placed in the hopper of the feeding rack 100, and the driving component is started. The driving component can rotate the auger in the conveying pipe 101, so that the barite powder is conveyed to the dust suppression cylinder 103 through the rotation of the auger blades 102. In the initial state, the feeding port 105 is in the open state, the cloth bag 107 is in the contracted state, and the discharge port 106 is in the open state. The barite powder can be conveyed into the dust suppression cylinder 103 and is received by the cloth bag 107 tightened in the middle. The cloth bag 107 will capture and filter the dust in the air to prevent the dust from spreading to the external environment. The set dust suppression component can work with the rotation of the auger blades 102 and gradually release the contracted cloth bag 107. At this time, the release component can close the feeding port 105 and the discharge port 106 to avoid excessive barite powder being conveyed into the dust suppression cylinder 103, thereby preventing blockage.Meanwhile, when the cloth bag 107 is released, it can prevent the barite powder mixed with air from accidentally falling off inside the dust suppression cylinder 103, ensuring the smoothness and safety of the conveying process. As the conveying and feeding work progresses, the dust suppression component can tighten the middle position of the cloth bag 107 again. During this process, the feeding port 105 is in an open state, and the barite powder is still being conveyed in the cloth bag 107, gradually filling the cloth bag 107 and filling the lower cavity 109 of the cloth bag 107. When the middle position of the cloth bag 107 is tightened, the shape of the cloth bag 107 gradually tends to be hourglass-shaped. At this time, the barite powder conveyed in the cloth bag 107 can be compacted, and the air in the cloth bag 107 can be discharged, further reducing the escape of dust during the conveying process. The powder in the lower cavity 109 of the cloth bag 107 can be compacted into a mass, which can increase the density of the powder and reduce the generation and leakage of dust. When the middle position of the cloth bag 107 gradually approaches and contracts to the preset value along the central axis of the dust suppression cylinder 103 and the powder mass is formed, the release component can open the discharge port 106. At this time, the powder mass in the lower cavity 109 can fall into the mixing tank and be mixed with water and additives, realizing the conveying and feeding of barite powder and effectively suppressing the dust generation during the feeding of barite powder. After the powder mass falls out of the cloth bag 107, when the dust suppression component releases the cloth bag 107, the release component will close the discharge port 106 to prevent the uncompacted powder from falling out of the discharge port 106. At the same time, the feeding port 105 is closed and temporarily does not accept barite powder. During this process, the dust suppression mechanism in the cloth bag 107 continues to function, isolating the fine dust from the barite powder and only allowing gas to escape from the cloth bag 107, ensuring environmental cleanliness and safety throughout the operation process. In addition, during the process of the dust suppression component releasing the cloth bag 107, the contracted part will be instantly straightened. This straightening action can effectively shake off the powder adhered to the inner surface of the cloth bag 107, preventing the powder from accumulating on the inner surface of the cloth bag 107, thereby reducing the risk of the powder adhering to the cloth bag 107 during the conveying process. This not only helps to improve the use efficiency of the cloth bag 107 but also ensures that the conveyed powder can be discharged more smoothly, avoiding the phenomenon of blockage and inability to effectively discharge air. Through this design, the entire barite powder conveying system can effectively avoid dust leakage and reduce environmental pollution. At the same time, through the dynamic control of the cloth bag 107, the continuous and stable conveying of the powder is ensured, avoiding problems such as powder blockage and excessive accumulation, ensuring the best state of conveying efficiency and mixing effect, and solving the problem in the prior art that during the process of screw conveyor conveying barite powder, due to the influence of mechanical friction and air flow, a large amount of powder mist is generated. These powder mists not only cause material waste but also cause serious dust pollution to the operating environment. In the traditional solution, the discharge port 106 of the screw conveyor is directly connected to a sealed mixing tank. Although the dust spillage is inhibited to a certain extent, it increases the complexity of the sealing system, and the cleaning and maintenance processes are cumbersome.By introducing the dust suppression device, the sealing requirements of the system are reduced, and the difficulty of maintenance and cleaning is lowered. These improvements not only enhance the conveying efficiency of barite powder but also reduce dust pollution and the difficulty of equipment maintenance, improving the overall reliability of the system and the safety of the operating environment.

[0056] As a further solution of the present invention, the dust suppression component includes a rotating shaft 200 disposed in the dust suppression cylinder 103. A first traction rope 201 is connected to the rotating shaft 200. One end of the first traction rope 201 is connected to the cloth bag 107 at the middle position of the inner wall of the cloth bag 107.

[0057] By providing the rotating shaft 200, when the rotating shaft 200 rotates, it can drive the first traction rope 201 to tighten or release, thereby dynamically adjusting the middle part of the cloth bag 107. This design can effectively press the powder in the cloth bag 107 during the conveying process of barite powder, reducing the escape of dust.

[0058] As a further solution of the present invention, the dust suppression component further includes two fixing rings 202 connected in the dust suppression cylinder 103. A connecting ring 203 is provided inside the fixing ring 202. There is a preset distance between the fixing ring 202 and the connecting ring 203. A limiting rod 204 is connected to the fixing ring 202. One end of the cloth bag 107 passes through the gap between the fixing ring 202 and the connecting ring 203 and is connected with a moving ring 205. The moving ring 205 is slidably connected to the limiting rod 204. A first spring 206 is connected between the moving ring 205 and the fixing ring 202. The connecting ring 203 is connected to the limiting rod 204. The provided limiting rod 204 can support the position of the connecting ring 203 so that a gap for the cloth bag 107 to pass through can be formed between the connecting ring 203 and the fixing ring 202.

[0059] By providing the connecting ring 203, the connecting ring 203 can limit the shape of the cloth bag 107, enabling the cloth bag 107 to be reversely sleeved on the connecting ring 203. The first spring 206 can limit the positions of both ends of the cloth bag 107. In the initial state, the cloth bag 107 can be tightened in the dust suppression cylinder 103. When the rotating shaft 200 rotates to pull the cloth bag 107 through the first traction rope 201, both ends of the cloth bag 107 are gradually released upward between the connecting ring 203 and the fixing ring 202, and the first spring 206 compresses to generate potential energy. When the rotating shaft 200 rotates in the reverse direction and resets, the first spring 206 releases the potential energy, enabling the contracted cloth bag 107 to be tightened again, shaking off the powder attached to the inner wall of the cloth bag 107 and preventing powder accumulation.

[0060] As a further solution of the present invention, the release component includes an iris opening and closing mechanism 300 provided at the discharge port 106 and a connecting pipe 301 located inside the feed port 105. The connecting pipe 301 is communicated with the conveying pipe 101. A guiding ring 302 is provided inside the connecting pipe 301. A first lead screw 303 is provided on the rotating shaft 200. A threaded pipe 304 that is in threaded connection with the first lead screw 303 and is slidably connected to the connecting pipe 301 is threadedly connected to the first lead screw 303.

[0061] By providing the iris opening and closing mechanism 300, the flexible opening and closing of the discharge port 106 can be realized. In addition, by providing the first lead screw 303 and the threaded pipe 304 and using the threaded connection method, the first lead screw 303 can drive the threaded pipe 304 to slide along the connecting pipe 301. When the threaded pipe 304 moves upward to the position of the guiding ring 302, the guiding ring 302 can be closed. The powder conveyed by the auger blade 102 can be temporarily stored in the connecting pipe 301, achieving the purpose of opening and closing the feed port 105.

[0062] As a further solution of the present invention, a plurality of connecting grooves 305 are formed on the outer wall of the rotating shaft 200. A ejector rod 306 is slidably sleeved in the connecting groove 305. A second spring 307 is connected between the ejector rod 306 and the connecting groove 305. A jacking groove 308 adapted to the ejector rod 306 is formed in the inner wall of the first lead screw 303. The jacking groove 308 is a semi-spherical groove.

[0063] By providing the second spring 307, the second spring 307 can limit the position of the ejector rod 306, so that a certain frictional force is formed in cooperation with the jacking groove 308. When the rotating shaft 200 rotates forward to wind up the first traction rope 201 and contract the cloth bag 107, the frictional force between the ejector rod 306 and the jacking groove 308 can be used to rotate the first lead screw 303 and move the position of the threaded pipe 304 upward through the acting force of the thread. After the threaded pipe 304 moves upward to the position of the guiding ring 302, the moving position of the threaded pipe 304 is restricted. During the process that the rotating shaft 200 continues to rotate and gradually contracts the cloth bag 107, the ejector rod 306 can overcome the resistance of the second spring 307 and disengage from the jacking groove 308. At this time, the rotating shaft 200 can rotate idly inside the first lead screw 303, avoiding continuing to push the threaded pipe 304. This design can not only shorten the moving stroke of the threaded pipe 304, but also ensure that when the rotating shaft 200 rotates forward, the closing operation of the feed port 105 can be quickly completed. In addition, when the rotating shaft 200 rotates reversely, the feed port 105 can be opened in time, so that the cloth bag 107 is unfolded again to receive the next batch of material transportation. Through this structure, the system can realize the quick opening and closing control of the feed port 105, ensuring the continuity and accuracy of feeding during the transportation process, and avoiding the blockage problem caused by excessive material accumulation. This design improves the flexibility and efficiency of material transportation, effectively enhancing the stability of the equipment and the convenience of operation.

[0064] As a further aspect of the present invention, the iris opening and closing mechanism 300 includes a fixing portion 400 connected to the discharge port 106. A first slide rail 401 is provided on the fixing portion 400. A rotating portion 402 is provided at the bottom of the fixing portion 400. A second slide rail 403 is provided on the rotating portion 402. An iris vane 404 is provided between the fixing portion 400 and the rotating portion 402. A slider 405 slidably connected to the first slide rail 401 is provided at the top of the iris vane 404. A sliding shaft 406 slidably connected to the second slide rail 403 is connected to the iris vane 404;

[0065] By providing the iris opening and closing mechanism 300, which includes a fixing portion 400, a rotating portion 402, and an iris vane 404, the opening and closing of the discharge port 106 can be effectively controlled. Specifically, the first slide rail 401 on the fixing portion 400 is slidably connected to the slider 405 at the top of the iris vane 404, enabling the iris vane 404 to move freely along the first slide rail 401. At the same time, the second slide rail 403 on the rotating portion 402 is slidably connected to the sliding shaft 406 on the iris vane 404, ensuring that the iris vane 404 can move synchronously with the rotation of the rotating portion 402. This coordinated movement between the fixing portion 400 and the rotating portion 402 enables the iris vane 404 to precisely control the opening and closing of the discharge port 106, just like the iris of a camera lens.

[0066] As a further aspect of the present invention, a connecting shaft 407 is rotatably connected to the fixing portion 400. A first gear 408 is provided on the connecting shaft 407. A side opening 409 is formed on the outer wall of the rotating portion 402. A second gear 410 meshing with the first gear 408 is connected inside the side opening 409. The first gear 408 extends into the side opening 409. A second towing rope 411 is connected to the rotating shaft 200. One end of the second towing rope 411 is wound around the connecting shaft 407;

[0067] By setting the second towing rope 411, the effective control of the iris opening and closing mechanism 300 can be achieved. Specifically, one end of the second towing rope 411 is wound around the connecting shaft 407. A first gear 408 is provided on the connecting shaft 407. The first gear 408 extends into the side opening 409 on the outer wall of the rotating part 402 and is adapted to a second gear 410 in the side opening 409. When the rotating shaft 200 drives the second towing rope 411 to rotate, the towing rope will pull the connecting shaft 407 to rotate, and then drive the first gear 408 to start rotating. The rotation of the first gear 408 drives the rotation of the entire rotating part 402 through the meshing action with the second gear 410. This design enables the iris opening and closing mechanism 300 to control the opening and closing of the iris fan blades 404 through the movement of the rotating part 402. In addition, when the discharge port 106 is opened, since the rotating shaft 200 is still rotating and the second towing rope 411 is still being pulled, the subsequent pulling action of the second towing rope 411 can cut the whole dough mass, and the dough mass is appropriately separated into smaller parts before falling into the discharge port 106. This design not only improves the discharge efficiency of the material but also avoids the phenomenon in the traditional design that the subsequent mixing uniformity is affected due to the too tight dough mass. During the entire release process, a small amount of powder may be generated, which will not have a significant impact on the operating environment.

[0068] As a further solution of the present invention, a second lead screw 412 is threadedly connected to the connecting shaft 407. A third spring 413 is connected between the second lead screw 412 and the connecting shaft 407. The second towing rope 411 is wound around the second lead screw 412. A limiting ring 414 is connected to the connecting shaft 407. The limiting ring 414 is located at the bottom of the second lead screw 412. A connecting block 415 is connected to the fixing part 400. The connecting shaft 407 is rotatably connected to the connecting block 415. A fourth spring 416 is connected between the first gear 408 and the connecting block 415. The elastic potential energy of the fourth spring 416 is greater than that of the third spring 413;

[0069] By setting the connecting block 415, the connecting block 415 can effectively support the connecting shaft 407 and keep it stable during operation. When the second towing rope 411 is rotated and pulled by the rotating shaft 200, the second lead screw 412 starts to rotate first, and at the same time, the potential energy of the third spring 413 will gradually accumulate. This design allows the second lead screw 412 to move downward through the acting force of the thread until it reaches the position of the limiting ring 414. The purpose of this structure design is to ensure that the discharge port 106 will not be accidentally opened in the initial stage of tightening the cloth bag 107. After the second lead screw 412 reaches the position of the limiting ring 414 and the rotating shaft 200 continues to rotate to continuously tighten the cloth bag 107, the second towing rope 411 can make the connecting shaft 407 rotate until the cloth bag 107 is tightened to the preset value, and the rotating part 402 can realize the displacement of the iris blade to open the discharge port 106.

[0070] As a further solution of the present invention, the driving component includes a conveying shaft 500 rotatably connected inside the conveying pipe 101. The auger blade 102 is connected to the conveying shaft 500. A motor 501 is connected to the conveying pipe 101. A chain 502 is provided between the driving shaft of the motor 501 and the conveying shaft 500;

[0071] By arranging the motor 501, the rotation of the conveying shaft 500 can be effectively driven, so as to drive the auger blade 102 connected thereto to rotate. The power provided by the motor 501 is transmitted through the chain 502, so that the conveying shaft 500 rotates inside the conveying pipe 101 to realize the conveying of the powder material.

[0072] As a further solution of the present invention, the driving component further includes a third gear 503 rotatably connected inside the dust suppression cylinder 103. A fifth spring 504 is connected between the third gear 503 and the dust suppression cylinder 103. The rotating shaft 200 is connected to the third gear 503. A transmission shaft 505 is rotatably connected to the conveying pipe 101. A transmission gear set 506 is provided between the transmission shaft 505 and the conveying shaft 500. A fourth gear 507 meshing with the third gear 503 is connected to the bottom of the transmission shaft 505. The fourth gear 507 is an incomplete gear. A guide blade 508 is connected to the rotating shaft 200 and is located inside the guide ring 302;

[0073] By arranging the transmission gear set 506, the power of the motor 501 can be transmitted to the transmission shaft 505. When the transmission shaft 505 rotates to a preset angle, it can mesh with the third gear 503, and the third gear 503 and the rotating shaft 200 are rotated. At this time, the fifth spring 504 generates torsional potential energy. When the transmission shaft 505 continues to rotate, the rotation of the third gear 503 will drive the rotating shaft 200 connected thereto to rotate, so as to tighten the cloth bag 107. When the rotating shaft 200 rotates to the set maximum tightening position, the fourth gear 507 disengages from the third gear 503, thereby terminating the tightening process of the cloth bag 107. The cloth bag 107 will be reset by the first spring 206 and return to the initial state to prepare for the next tightening operation. By arranging the guide blade 508, the guide blade 508 can disturb the powder material inside the guide ring 302, so that the falling of the powder material is smoother.

[0074] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A barite powder conveying and feeding system, characterized in that: include: Loading rack (100); a conveying pipe (101) provided on the loading rack (100), the conveying pipe (101) being in communication with a hopper of the loading rack (100); An auger blade (102) disposed in the delivery pipe (101); A dust suppression cylinder (103) is provided at one end of the conveying pipe (101) and is in communication with the conveying pipe (101); a plurality of exhaust ports (104) are provided on the outer wall of the dust suppression cylinder (103); a feed port (105) is formed at the top of the dust suppression cylinder (103); and a discharge port (106) is formed at the bottom of the dust suppression cylinder (103); A cloth bag (107) disposed in the dust suppression cylinder (103), wherein an upper cavity (108) and a lower cavity (109) are formed in the cloth bag (107); A dust suppression component disposed in the dust suppression cylinder (103) is capable of contracting the middle portion of the cloth bag (107) to discharge air from the powder in the cloth bag (107); A release component disposed in the dust suppression cylinder (103) is capable of controlling the opening and closing of the feed port (105) and the discharge port (106); A driving component is provided between the loading rack (100) and the conveying pipe (101), capable of driving the auger blade (102) to rotate, and the dust suppression component is capable of intermittently retracting and releasing the cloth bag (107) when the auger blade (102) rotates; The dust suppression component can cause the release component to open the feed port (105) when the cloth bag (107) is shrunk, and close the feed port (105) and the discharge port (106) when the cloth bag (107) is released; the dust suppression component can cause the release component to open the discharge port (106) when the cloth bag (107) is shrunk to a preset value; The dust suppression component comprises a rotating shaft (200) disposed in the dust suppression cylinder (103), a first traction rope (201) being connected to the rotating shaft (200), one end of the first traction rope (201) being connected to the cloth bag (107) and located in the middle of the inner wall of the cloth bag (107); The dust suppression component also includes two fixed rings (202) connected to the dust suppression cylinder (103), a connecting ring (203) is provided inside the fixed ring (202), a preset spacing is provided between the fixed ring (202) and the connecting ring (203), a limiting rod (204) is connected to the fixed ring (202), one end of the cloth bag (107) passes through the gap between the fixed ring (202) and the connecting ring (203) and is connected to a moving ring (205), the moving ring (205) is slidably connected to the limiting rod (204), a first spring (206) is connected between the moving ring (205) and the fixed ring (202), and the connecting ring (203) is connected to the limiting rod (204).

2. A barite powder conveying and feeding system according to claim 1, characterized in that: The release component comprises an iris opening and closing mechanism (300) arranged at the discharge port (106), and a connecting pipe (301) located in the feed port (105), wherein the connecting pipe (301) is connected to the conveying pipe (101), a guide ring (302) is arranged in the connecting pipe (301), and a first lead screw (303) is arranged on the rotating shaft (200), and a threaded tube (304) is threadedly connected to the first lead screw (303) and is slidably connected to the connecting pipe (301).

3. A barite powder conveying and feeding system according to claim 2, characterized in that: The outer wall of the rotating shaft (200) is provided with a plurality of connecting grooves (305), a push rod (306) is slidably sleeved in the connecting groove (305), a second spring (307) is connected between the push rod (306) and the connecting groove (305), and the inner wall of the first lead screw (303) is provided with a top groove (308) adapted to the push rod (306), and the top groove (308) is a semi-spherical groove.

4. A barite powder conveying and feeding system according to claim 2, characterized in that: The iris opening and closing mechanism (300) includes a fixed part (400) connected to the discharge port (106), a first slide rail (401) is provided on the fixed part (400), a rotating part (402) is provided at the bottom of the fixed part (400), a second slide rail (403) is provided on the rotating part (402), an iris fan blade (404) is provided between the fixed part (400) and the rotating part (402), a slider (405) slidably connected to the first slide rail (401) is provided at the top of the iris fan blade (404), and a sliding shaft (406) slidably connected to the second slide rail (403) is connected to the iris fan blade (404).

5. A barite powder conveying and feeding system according to claim 4, characterized in that: The fixed part (400) is rotatably connected to a connecting shaft (407), and a first gear (408) is provided on the connecting shaft (407). The outer wall of the rotating part (402) is provided with a side opening (409), and a second gear (410) meshing with the first gear (408) is connected to the side opening (409), and the first gear (408) extends into the side opening (409). A second traction rope (411) is connected to the rotating shaft (200), and one end of the second traction rope (411) is wound around the connecting shaft (407).

6. A barite powder conveying and feeding system according to claim 5, characterized in that: A second lead screw (412) is threadedly connected to the connecting shaft (407), a third spring (413) is connected between the second lead screw (412) and the connecting shaft (407), the second traction rope (411) is wound around the second lead screw (412), a limit ring (414) is connected to the connecting shaft (407), the limit ring (414) is located at the bottom of the second lead screw (412), a connecting block (415) is connected to the fixing portion (400), the connecting shaft (407) is rotatably connected to the connecting block (415), a fourth spring (416) is connected between the first gear (408) and the connecting block (415), and the elastic potential energy of the fourth spring (416) is greater than that of the third spring (413).

7. A barite powder conveying and feeding system according to claim 2, characterized in that: The driving component comprises a conveying shaft (500) rotatably connected to the conveying pipe (101), the auger blade (102) being connected to the conveying shaft (500), the conveying pipe (101) being connected to a motor (501), and a chain (502) being provided between a driving shaft of the motor (501) and the conveying shaft (500).

8. A barite powder conveying and feeding system according to claim 7, characterized in that: The driving component also includes a third gear (503) rotatably connected to the dust suppression cylinder (103), a fifth spring (504) is connected between the third gear (503) and the dust suppression cylinder (103), the rotating shaft (200) is fixedly connected to the third gear (503), a transmission shaft (505) is rotatably connected to the delivery pipe (101), a transmission gear set (506) is provided between the transmission shaft (505) and the delivery shaft (500), a fourth gear (507) meshing with the third gear (503) is connected to the bottom of the transmission shaft (505), the fourth gear (507) is an incomplete gear, and a guide blade (508) is connected to the rotating shaft (200) and is located in the guide ring (302).

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