An apron conveyor

Abstract

The utility model discloses a kind of scraper conveyors, including installation part, conveying part, scraper, rigid cleaning part and flexible cleaning part;Installation part has material moving cavity and two material ports, two material ports are all communicated material moving cavity;Conveying part is located in installation part, and is located material moving cavity, and can be back and forth active between two material ports;Scraper is located in conveying part, and when following conveying part activity, with material moving;Rigid cleaning part is located in the inner wall of material moving cavity, and is spaced apart with conveying part, to break the agglomerate adhered to conveying part;Flexible cleaning part is located in the inner wall of material moving cavity, and is pressed against conveying part.This scheme can clean the material bonded on conveying part in time effectively, avoid agglomerate to cause conveying part damage, prolong overhaul cycle, improve conveying efficiency, and cleaning assembly will not hinder normal conveying of conveying part, ensure normal material transfer.

Description

Technical Field

[0001] This utility model relates to the technical field of wet ammonium chloride conveying equipment, specifically to a scraper conveyor. Background Technology

[0002] When wet ammonium chloride is transported in an open environment, it can easily expose a lot of ammonia gas to the air. Therefore, many manufacturers now use buried scrapers for sealed transport.

[0003] Publication number CN212768297U discloses a scraper conveyor with a conveyor chain inside the casing. The conveyor chain drives multiple scrapers to move, thereby moving the material. The scraper conveyor also has two sets of fixed rods at the lower end of the feed inlet of the casing, and crushing blades are installed on the fixed rods. Thus, a second motor can drive the fixed rods to drive the crushing blades to crush the material entering the feed inlet and the impurities in the material, so as to avoid the material or impurities getting stuck at the head or tail of the scraper conveyor body and causing the chain to fall off.

[0004] However, due to the hygroscopic, corrosive, and easily agglomerated physical properties of wet ammonium chloride, it tends to accumulate and agglomerate on the chain of the scraper conveyor during the transportation process, which can cause the chain to float and break, requiring frequent maintenance. Utility Model Content

[0005] The purpose of this utility model is to overcome the above-mentioned technical deficiencies and propose a scraper conveyor to solve the technical problem in the prior art that wet ammonium chloride has physical properties such as hygroscopicity, corrosiveness and easy agglomeration, which makes it easy for wet ammonium chloride to accumulate and agglomerate at the chain of the scraper conveyor during the conveying process, thus causing the chain to float and easily break, requiring frequent maintenance.

[0006] To achieve the above-mentioned technical objectives, the present invention adopts the following technical solution: This utility model provides a scraper conveyor, comprising: The mounting section has a material transfer chamber and two material inlets, both of which are connected to the material transfer chamber. A conveying unit is provided on the mounting unit and located in the material transfer chamber, and can move back and forth between the two material inlets; A scraping section is located on the conveying section and moves the material while following the movement of the conveying section. A rigid cleaning section, disposed on the inner wall of the transfer chamber and spaced apart from the conveying section, is used to break up clumps adhering to the conveying section; and A flexible cleaning section is disposed on the inner wall of the material transfer chamber and presses against the conveying section.

[0007] In some embodiments, the distance between the rigid cleaning section and the conveying section is adjustable, and the rigid cleaning section can be maintained in the adjusted position.

[0008] In some embodiments, the rigid cleaning part includes a fixing plate, a scraper, an adjusting bolt, and an adjusting nut. The fixing plate is fixed to the inner wall of the material transfer chamber and has an adjusting groove along the direction close to the conveying part. The scraper has a mounting hole corresponding to the adjusting groove. The adjusting bolt passes through the mounting hole and the adjusting groove in sequence. The adjusting nut is threadedly connected to the adjusting bolt and is located on the side of the adjusting groove away from the scraper.

[0009] In some embodiments, the scraper conveyor further includes a drive unit and two toothed discs. The two toothed discs are rotatably mounted on the mounting unit and located in the material transfer chamber. The rotation axes of the two toothed discs are the same and located outside the two material inlets. The drive unit is mounted on the mounting unit and connected to the toothed discs for driving the toothed discs to rotate. The conveying unit includes a conveying chain, which is sleeved on and meshes with the two toothed discs.

[0010] In some embodiments, the scraping section includes a plurality of scrapers, which are disposed on the conveyor chain and spaced apart along the conveying direction of the conveyor chain.

[0011] In some embodiments, the rigid cleaning part is located on the side of the toothed chain away from the other toothed chain, and is arranged sequentially with the flexible cleaning part along the conveying direction of the conveyor chain.

[0012] In some embodiments, the bottom of the transfer chamber is provided with two guide plates, which are located on opposite sides of the transfer chamber and their arrangement direction intersects the conveying direction of the conveyor chain. Each guide plate is inclined from the top end to the bottom end along the direction close to the other guide plate and extends to the bottom wall of the transfer chamber. The lower end of the scraper section slides in contact with the two guide plates respectively.

[0013] In some embodiments, one of the two material inlets is a feed inlet and the other is a discharge outlet. The feed inlet is located on the upper side of the mounting part, and the discharge outlet is located on the lower side of the mounting part. Multiple discharge outlets are provided at intervals along the conveying direction of the conveying part. The scraper conveyor also includes multiple discharge gates, which are movably installed on the mounting part and located at multiple discharge ports respectively, and can open and close the corresponding discharge ports when in motion.

[0014] In some embodiments, the scraper conveyor further includes a vibrator disposed at the mounting portion for vibrating the mounting portion; and / or, The scraper conveyor also includes multiple airflow purging nozzles, which are installed in the mounting part and have their nozzle heads located in the material transfer chamber and are spaced apart along the conveying direction of the conveying part.

[0015] In some embodiments, the flexible cleaning section includes a flexible cleaning brush.

[0016] Compared with existing technologies, the scraper conveyor provided by this utility model, during operation, controls the conveying section to transport materials along the layout direction of the rigid and flexible cleaning sections, and realizes the material transfer between the two feed inlets through the scraping section. When agglomeration occurs in the conveying section, the agglomerates move to the position of the rigid cleaning section first, where they are intercepted and broken up. Then, the broken residue continues to move to the position of the flexible cleaning section, where it cleans the residue on the conveying section. In this way, the material adhering to the conveying section can be cleaned in a timely and effective manner, avoiding damage to the conveying section caused by agglomeration, extending the maintenance cycle, improving conveying efficiency, and the cleaning components do not obstruct the normal conveying of the conveying section, ensuring normal material transfer. Attached Figure Description

[0017] Figure 1 This is a perspective view of a scraper conveyor (scraper not shown) provided in an embodiment of this utility model; Figure 2 yes Figure 1 Enlarged view of point A in the middle; Figure 3 yes Figure 2 Schematic diagram of the rigid cleaning section; Figure 4 yes Figure 3 Sectional view of the rigid cleaning section; Figure 5 yes Figure 1 A partial schematic diagram of the conveyor chain and scraper in the middle; Figure 6 yes Figure 1 Top view of the scraper conveyor; Figure 7 yes Figure 1 A cross-sectional view of the scraper conveyor.

[0018] Explanation of reference numerals in the attached figures: 1. Installation section; 1a. Transfer chamber; 1b. Material inlet; 1c. Feed inlet; 1d. Discharge outlet; 2. Conveying section; 21. Conveying chain; 3. Scraping section; 31. Scraper; 4. Rigid cleaning section; 41. Fixing plate; 41a. Adjustment groove; 42. Scraper; 42a. Mounting hole; 43. Adjusting bolt; 44. Adjusting nut; 5. Flexible cleaning section; 6. Drive section; 61. Gear plate; 7. Guide plate; 8. Vibrator; 9. Airflow purging nozzle; 10. Automatic cleaning device. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0020] To address the technical problem that wet ammonium chloride, due to its hygroscopic, corrosive, and agglomerating properties, easily accumulates and clumps on the chain of a scraper conveyor during transport, leading to chain floating, breakage, and frequent maintenance, this invention provides a scraper conveyor that can effectively and promptly clean up adhering materials on the conveying section, preventing agglomeration that could damage the conveying section, extending the maintenance cycle, and improving conveying efficiency. Furthermore, the cleaning components do not obstruct normal conveying, ensuring normal material transfer.

[0021] Please see Figure 1 and Figure 2 , Figure 1 and Figure 2 This is a schematic diagram of the scraper conveyor in one embodiment of the present invention. The scraper conveyor includes an installation part 1, a conveying part 2, a scraper 31, a rigid cleaning part 4, and a flexible cleaning part 5. The installation part 1 has a material transfer chamber 1a and two material inlets 1b, both of which are connected to the material transfer chamber 1a. The conveying part 2 is located in the installation part 1 and in the material transfer chamber 1a, and can move back and forth between the two material inlets 1b. The scraper part 3 is located in the conveying part 2 and moves the material when it moves with the conveying part 2. The rigid cleaning part 4 is located on the inner wall of the material transfer chamber 1a and is spaced apart from the conveying part 2 to break up clumps adhering to the conveying part 2. The flexible cleaning part 5 is located on the inner wall of the material transfer chamber 1a and presses against the conveying part 2.

[0022] The scraper conveyor provided by this utility model, during operation, controls the conveying section 2 to convey materials along the layout direction of the rigid cleaning section 4 and the flexible cleaning section 5, and realizes the material conveying between the two feed inlets 1b through the scraping section 3. When agglomeration occurs in the conveying section 2 during the conveying process, the agglomerate moves with the conveying section 2 to the position of the rigid cleaning section 4, where it can be intercepted and broken up. Then, the broken residue continues to move to the position of the flexible cleaning section 5, where it cleans the residue on the conveying section 2. In this way, the material adhering to the conveying section 2 can be cleaned in a timely and effective manner, avoiding damage to the conveying section 2 due to agglomeration, extending the maintenance cycle, improving conveying efficiency, and the cleaning components do not obstruct the normal conveying of the conveying section 2, ensuring normal material conveying.

[0023] In one embodiment, please refer to Figure 3 and Figure 4 The distance between the rigid cleaning section 4 and the conveying section 2 is adjustable, and the rigid cleaning section 4 can be maintained in the adjusted position.

[0024] In this embodiment, the distance between the rigid cleaning section 4 and the conveying section 2 can be flexibly adjusted according to the particle size of the material, so as to avoid interference between the rigid cleaning section 4 and the conveying section 2 while ensuring the rigid cleaning section 4's ability to break up agglomerates.

[0025] It should be noted that the rigid cleaning unit 4 can be driven by a linear motor, hydraulic rod, or electric actuator to adjust its distance from the conveying unit 2, or it can be in other forms. Furthermore, the rigid cleaning unit 4 can be configured as a rigid arm, a rigid seat, or other forms, and its material can be iron, steel, or tungsten alloy, etc. The flexible cleaning unit 5 can be a brush made of rubber or silicone, or a bendable plastic brush.

[0026] In one embodiment, the rigid cleaning part 4 includes a fixing plate 41, a scraper 42, an adjusting bolt 43, and an adjusting nut 44. The fixing plate 41 is fixed to the inner wall of the material transfer chamber 1a and has an adjusting groove 41a along the direction close to the conveying part 2. The scraper 42 has a mounting hole 42a corresponding to the adjusting groove 41a. The adjusting bolt 43 passes through the mounting hole 42a and the adjusting groove 41a in sequence. The adjusting nut 44 is threadedly connected to the adjusting bolt 43 and is located on the side of the adjusting groove 41a away from the scraper 42.

[0027] In this embodiment, the distance between the scraper 42 and the conveying part 2 is adjusted according to the type and particle size of the material. Specifically, when adjustment is required, the adjusting nut 44 is loosened first, and then the scraper 42 is moved relative to the fixed plate 41 to adjust the distance between the scraper 42 and the conveying part 2. After the distance is adjusted, the adjusting nut 44 is tightened to fix the scraper 42 relative to the mounting part 1.

[0028] It should be noted that the mounting part 1 can be configured as a housing, box, or pipe with a material transfer chamber 1a and a material outlet 1b, and there is no limitation on this. Furthermore, it should be noted that the conveying part 2 can be configured as a conveying rack, conveyor belt, conveyor rope, or other form.

[0029] In one embodiment, the scraper conveyor further includes a drive unit 6 and two toothed discs 61. The two toothed discs 61 are rotatably mounted on the mounting unit 1 and located in the material transfer chamber 1a. The rotation axes of the two toothed discs 61 are the same and located outside the two material inlets 1b. The drive unit 6 is mounted on the mounting unit 1 and connected to the toothed discs 61 for driving the toothed discs 61 to rotate. The conveying unit 2 includes a conveying chain 21, which is sleeved on the two toothed discs 61 and meshes with the two toothed discs 61.

[0030] In this embodiment, the scraping section 3 conveys material through the reciprocating motion of the conveyor chain 21, and the drive unit 6 drives the toothed disc 61 to rotate, thereby driving the conveyor chain 21 to rotate, improving automation. It should be noted that the drive unit 6 can be configured as a motor, directly driving the toothed disc 61 to rotate. Alternatively, the drive unit 6 can be configured as a motor with belt or gear transmission.

[0031] In one embodiment, the motor is a variable frequency speed control motor with a power redundancy of 1.2 times the conveying capacity, and the speed is adjustable. It is equipped with intelligent monitoring: a torque sensor with a range of 0-2000 N·m is installed to monitor chain tension in real time. An infrared humidity sensor monitors the material condition. A smart camera is installed to automatically capture and analyze chain cracks to prevent breakage. Data is connected to a PLC (controller) system, which automatically stops the machine and triggers an alarm in case of abnormalities.

[0032] It should be noted that the scraper section 3 can be configured as a paddle, scraper seat or other forms.

[0033] In another embodiment, the scraping section 3 includes a plurality of scrapers 31, which are disposed on the conveyor chain 21 and spaced apart along the conveying direction of the conveyor chain 21.

[0034] In this embodiment, multiple scrapers 31 are provided to improve material conveying efficiency. Furthermore, it should be understood that the scrapers 31 are located on the side of the conveyor chain 21 in the width direction to avoid affecting the scraper 42's ability to remove clumps from the conveyor chain 21.

[0035] Specifically, scraper 31 adopts a corrugated airfoil structure with an inclination angle of 15°-30° to enhance material pushing force and reduce bottom residue. Conveyor chain 21 adopts a floating chain with spring or rubber buffer mechanism, and the pressure is adjustable to adapt to material fluctuations. Its specific structure can be referred to the existing technology and will not be described in detail here.

[0036] Furthermore, the conveyor chain 21 and scraper 31 are made of 316L stainless steel and duplex stainless steel composite material, and are nitrided to improve their resistance to chloride ion corrosion and strength. A tungsten carbide coating with a thickness of 0.2-0.5 mm is sprayed onto the surface of the scraper 31 and chain, achieving a hardness of HV1200 or higher, increasing wear life by 3-5 times. The lining of the transfer chamber 1a is made of ultra-high molecular weight polyethylene (UHMWPE), reducing adhesion and achieving a friction coefficient below 0.1.

[0037] In one embodiment, the rigid cleaning part 4 is located on the side of the toothed plate 61 away from the other toothed plate 61, and is arranged sequentially with the flexible cleaning part 5 along the conveying direction of the conveyor chain 21.

[0038] In this embodiment, the rigid cleaning section 4 is configured as described above, so that after the conveyor strip extends out of the material, the rigid cleaning section 4 cleans the clumps on the conveyor chain 21, improving the cleaning effect. It should be noted that the flexible cleaning section 5 can be configured as a flexible plate, a flexible arm, or a flexible brush. Specifically, in this solution, the flexible cleaning section 5 is configured as a flexible cleaning brush.

[0039] In one embodiment, please refer to Figure 7 The bottom of the transfer chamber 1a is provided with two guide plates 7. The two guide plates 7 are located on opposite sides of the transfer chamber 1a, and their arrangement direction intersects the conveying direction of the conveying chain 21. Each guide plate 7 is inclined from the top end to the bottom end along the direction close to the other guide plate 7 and extends to the bottom wall of the transfer chamber 1a. The lower end of the scraper part 3 is in sliding contact with the two guide plates 7 respectively.

[0040] In this embodiment, the scraper 31 slides against the lower ends of the two guide plates 7 during the feeding process, so as to effectively remove the material from the bottom of the mounting part 1, avoid the formation of dead corners, and prevent material accumulation in corners. Specifically, in this solution, the guide plates 7 are arranged at 45°.

[0041] In one embodiment, please refer to Figure 1 and Figure 6 One of the two material inlets 1b is the inlet 1c, and the other is the outlet 1d. The inlet 1c is located on the upper side of the mounting part 1, and the outlet 1d is located on the lower side of the mounting part 1. Multiple outlets are provided at intervals along the conveying direction of the conveying part. The scraper conveyor also includes multiple outlet gates. The multiple outlet gates are movably installed on the mounting part 1 and are located at the multiple outlets 1d respectively. When in motion, the corresponding outlets 1d can be opened and closed.

[0042] In this embodiment, the discharge port 1d can be selected for discharge according to needs, improving flexibility. Specifically, the discharge door can be slidably mounted on the mounting part 1 by means of a linear motor or hydraulic rod, so as to open or close the corresponding movable door when sliding. Alternatively, it can be directly and detachably mounted on the mounting part 1 by means of bolts.

[0043] In one embodiment, the scraper conveyor further includes a vibrator 8, which is disposed in the mounting section 1 and is used to vibrate the mounting section 1.

[0044] In this embodiment, the installation part 1 can be vibrated periodically by the vibrator 8 to further prevent material accumulation. Specifically, the vibrator 8 can be a high-frequency pneumatic vibrator 8 with a frequency of 50-60 Hz, an amplitude of 2-3 mm, and an adjustable operating interval. It should be noted that the specific structure and principle of the vibrator 8 are existing technologies and will not be described in detail here.

[0045] In one embodiment, the scraper conveyor further includes a plurality of airflow purging nozzles 9, which are installed in the mounting part 1 and have their nozzle heads located in the material transfer chamber 1a and are spaced apart along the conveying direction of the conveying part 2.

[0046] In this embodiment, multiple airflow purging nozzles 9 are provided to periodically purge the chain, further reducing the probability of clumping on the conveyor chain 21. Specifically, compressed air purging nozzles 9 are arranged every 1.5 meters, with a pressure of 0.4-0.6 MPa, operating in pulses at intervals of 5-10 seconds. It should be noted that the conveying direction of the conveyor chain is as follows: Figure 2 It is indicated by F.

[0047] In one embodiment, an automatic water washing device is also installed in the material transfer chamber 1a. After the machine is stopped, the material is washed clean with water and dried with hot air to ensure that there is no material in the scraper 31 after the machine is stopped and that there is no clumping.

[0048] The automatic washing device includes a water inlet pipe, a water pump and a hot air blower. The water pump sends external clean water into the transfer chamber 1a through the water inlet pipe to rinse the inside of the transfer chamber 1a. After rinsing, the hot air blower dries the material.

[0049] To better understand this utility model, the following is combined with... Figures 1 to 7 The technical solution of this utility model is described in detail below: In this design, the conveyor chain 21 is controlled to convey materials along the arrangement direction of the scraper 42 and the flexible cleaning brush. During the movement of the conveyor chain 21, the scraper 31 on it carries the material to the discharge port 1d, where it is then discharged. If clumps form on the conveyor chain 21 during operation, the clumps will move along the chain to the scraper 42 of the rigid cleaning section 4, where they are intercepted and broken. The broken residue then continues to move along the conveyor chain 21 to the flexible cleaning brush, where it cleans the residue from the chain. This allows for timely and effective cleaning of materials adhering to the conveyor chain 21, preventing clumps from causing damage, extending maintenance cycles, and improving conveying efficiency.

[0050] The specific embodiments of this utility model described above do not constitute a limitation on the scope of protection of this utility model. Any other corresponding changes and modifications made based on the technical concept of this utility model should be included within the scope of protection of the claims of this utility model.

Claims

1. An apron conveyor, characterized in that include: The mounting section has a material transfer chamber and two material inlets, both of which are connected to the material transfer chamber. A conveying unit is provided on the mounting unit and located in the material transfer chamber, and can move back and forth between the two material inlets; A scraping section is located on the conveying section and moves the material while following the movement of the conveying section. A rigid cleaning section, disposed on the inner wall of the transfer chamber and spaced apart from the conveying section, is used to break up clumps adhering to the conveying section; and A flexible cleaning section is disposed on the inner wall of the material transfer chamber and presses against the conveying section.

2. The scraper conveyor according to claim 1, characterized in that, The distance between the rigid cleaning section and the conveying section is adjustable, and the rigid cleaning section can be maintained in the adjusted position.

3. The flight conveyor of claim 2, wherein, The rigid cleaning part includes a fixing plate, a scraper, an adjusting bolt, and an adjusting nut. The fixing plate is fixed to the inner wall of the material transfer chamber and has an adjusting groove along the direction close to the conveying part. The scraper has a mounting hole corresponding to the adjusting groove. The adjusting bolt passes through the mounting hole and the adjusting groove in sequence. The adjusting nut is threadedly connected to the adjusting bolt and is located on the side of the adjusting groove away from the scraper.

4. The flight conveyor of claim 1, wherein, The scraper conveyor also includes a drive unit and two toothed discs. The two toothed discs are rotatably mounted on the mounting unit and located in the material transfer chamber. The rotation axes of the two toothed discs are the same and located outside the two material inlets. The drive unit is mounted on the mounting unit and connected to the toothed discs to drive the toothed discs to rotate. The conveying unit includes a conveying chain, which is sleeved on and meshes with the two toothed discs.

5. The flight conveyor of claim 4, wherein, The scraping section includes multiple scrapers, which are disposed on the conveyor chain and spaced apart along the conveying direction of the conveyor chain.

6. The flight conveyor of claim 4, wherein, The rigid cleaning section is located on the side of the toothed disc away from the other toothed disc, and is arranged sequentially with the flexible cleaning section along the conveying direction of the conveyor chain.

7. The flight conveyor of claim 4, wherein, The bottom of the transfer chamber is provided with two guide plates. The two guide plates are located on opposite sides of the transfer chamber, and their arrangement direction intersects the conveying direction of the conveyor chain. Each guide plate is inclined from the top end to the bottom end along the direction close to the other guide plate and extends to the bottom wall of the transfer chamber. The lower end of the scraper section slides in contact with the two guide plates respectively.

8. The flight conveyor of claim 1, wherein, One of the two material inlets is a feed inlet and the other is a discharge outlet. The feed inlet is located on the upper side of the mounting part, and the discharge outlet is located on the lower side of the mounting part. Multiple discharge outlets are provided at intervals along the conveying direction of the conveying part. The scraper conveyor also includes multiple discharge gates, which are movably installed on the mounting part and located at multiple discharge ports respectively, and can open and close the corresponding discharge ports when in motion.

9. The flight conveyor of claim 1, wherein, The scraper conveyor further includes a vibrator, which is disposed at the mounting portion and used to vibrate the mounting portion; and / or, The scraper conveyor also includes multiple airflow purging nozzles, which are installed in the mounting part and have their nozzle heads located in the material transfer chamber and are spaced apart along the conveying direction of the conveying part.

10. The flight conveyor of claim 1, wherein, The flexible cleaning unit includes a flexible cleaning brush.

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