Safe conveying equipment for chemical materials

Abstract

The utility model relates to the technical field of material conveying, in particular to chemical material safety conveying equipment which comprises a fan and a stock bin, a supporting frame is fixedly connected to the bottom face of the stock bin, a valve is arranged in the stock bin, and after a scraper blade is used for a long time, the scraper blade can be abraded to cause incomplete contact between the scraper blade and the inner wall of a conveying pipe. At the moment, a butt joint flange can be detached through a detachable hexagon bolt, a second bearing is separated from a rotating shaft, then a fixing nut is detached, a fixing block can be pulled to enable a butt joint hole to be separated from a threaded bolt, a fixing rod and a scraping plate slide out of a T-shaped sliding groove through a T-shaped sliding block, and at the moment, a new scraping mechanism can be replaced. The scraper blade can be in contact with the inner wall of the conveying pipe for a long time, the scraping efficiency is guaranteed, the replaceable scraper blade can be replaced by a new scraper blade after being used for a long time, the problem that the scraper blade is not in contact with the inner wall of the conveying pipe completely is solved, and the problems that an existing device is not long in service life and prone to abrasion are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of material conveying, in particular to a chemical material safety conveying device. Background Art

[0002] In the chemical production process, some powdered materials need to be transported. Most of the existing technologies use sealed conveying pipes and fans to transport powders. However, after transportation, some powdered materials often adhere to the inner wall of the conveying pipe, which is not easy to clean. If not cleaned in time, the adhered materials are prone to deterioration over a long period of time, which not only causes waste of raw materials but also affects the quality of the products. Therefore, designing a powdered material conveying equipment for chemical production that is easy to clean the inner wall of the conveying pipe is a problem to be solved by technical personnel in this field.

[0003] At present, there is an existing powder material conveying equipment for chemical production (such as patent number: CN209871750U), which discloses a powder material conveying equipment for chemical production, including a conveying pipe, a feeding hopper connected to the feeding port of the conveying pipe, a fan connected to the air inlet of the conveying pipe, and a receiving box connected to multiple discharge ports of the conveying pipe. Guide grooves are provided on both sides of the conveying pipe along its length direction, and a scraper frame plate is slidably installed inside the conveying pipe along its length direction. Slide blocks matching the guide grooves are provided on both sides of the scraper frame plate. A threaded rod is rotatably installed inside one of the guide grooves along its length direction, and the threaded rod is driven by a driving motor installed outside the guide groove. A threaded hole matching the threaded rod is opened on one of the slide blocks and is threadedly connected to the threaded rod. The powder material conveying equipment for chemical production has a simple structure and is easy to use. It can effectively clean the inner wall of the conveying pipe, prevent waste of raw materials, and improve product quality.

[0004] However, during the implementation of the above technical solution, it was found that there were at least the following technical problems:

[0005] 1. The existing device uses a scraper frame plate to cyclically reciprocate to scrape the inner wall of the feed pipe, so as to achieve the purpose of scraping off the inner wall of the clinker pipe. First, the scraper frame plate will contact and rub with the inner wall of the feed pipe when cyclically scraping the inner wall of the feed pipe. The friction of the feed pipe will become thinner over a long period of time until the scraper frame plate cannot fully contact with the inner wall of the feed pipe. At this time, the scraper frame plate not only does not have much scraping effect, but also causes damage to the feed pipe. Therefore, the existing device needs to replace the scraper frame plate frequently, and the service life of the feed pipe is not high and it is easy to wear.

[0006] 2. The existing device uses a scraper frame to cyclically reciprocate to scrape off the materials attached to the inner wall of the conveying pipe. During the scraping operation, the materials hung on the conveying pipe will fall to the inner bottom surface of the conveying pipe under the action of gravity, and will be squeezed by the continuously moving scraper frame until the squeezed corners. As the scraper frame continues to move, new materials are continuously squeezed by the scraper frame to the inner wall corners of the conveying pipe until they are compacted. At this time, the materials accumulated at the corners are more difficult to be blown away by the fan because they are compacted. Long-term accumulation may not only cause the conveying pipe to be blocked, but may also cause the conveying pipe to be damaged. Therefore, the existing device may block and corrode the conveying pipe after long-term operation. Utility Model Content

[0007] 1. Technical issues to be solved

[0008] In view of the deficiencies in the prior art, the utility model provides a safe chemical material conveying device, which solves the technical problems that the existing devices have a short service life, are easy to wear and may clog and corrode the conveying pipes after long-term use.

[0009] (II) Technical solution

[0010] In order to achieve the above objectives, the present invention is implemented through the following technical solutions:

[0011] A safe conveying equipment for chemical materials comprises a fan and a silo, wherein a support frame is fixedly connected to the bottom surface of the silo, a valve is arranged in the silo, an air outlet of the fan is fixedly connected to an air guide duct, an end of the air guide duct away from the fan is fixedly connected to a conveying pipe, an end of the conveying pipe close to the fan is provided with a motor, a scraping mechanism is arranged in the motor, a detachable sealing mechanism is arranged at an end of the conveying pipe away from the motor, the scraping mechanism comprises two connecting frames, and the detachable sealing mechanism comprises a docking flange.

[0012] Preferably: a feeding pipe is fixedly connected to the top surface of a section of the conveying pipe close to the fan, an end of the feeding pipe away from the conveying pipe is fixedly connected to the silo, and the connection between the air guide pipe and the conveying pipe is located in the middle section of the feeding pipe and the end of the conveying pipe close to the motor.

[0013] Preferably: the driving shaft of the motor is fixedly connected with a rotating shaft, the rotating shaft passes through an end of the conveying tube close to the motor and extends to an end of the conveying tube away from the motor, and the rotating shaft is located at the central axis of the conveying tube.

[0014] Preferably: a first bearing is arranged at the position where the conveying pipe is penetrated by the rotating shaft, the inner ring of the first bearing is fixedly connected to the rotating shaft, the outer ring of the first bearing is fixedly connected to the conveying pipe, and a sealing ring is fixedly installed on the inner wall of the conveying pipe and at one end close to the first bearing.

[0015] Preferably, a connecting flange is fixedly mounted on the outer wall of one end of the conveying pipe away from the first bearing, and a discharge pipe is fixedly connected to the bottom surface of a section of the conveying pipe close to the connecting flange.

[0016] Preferably: a docking flange is connected to the side of the connecting flange away from the motor, a second bearing is arranged at the central axis of the docking flange, the inner ring of the second bearing is slidably sleeved with the end of the rotating shaft away from the motor, the docking flange and the connecting flange are both provided with six flange holes, the six flange holes of the docking flange and the connecting flange are jointly sleeved with hexagonal bolts, and the hexagonal bolts pass through one end of the docking flange and the connecting flange and are rotatably connected with hexagonal nuts.

[0017] Preferably: the two connecting frames are fixedly connected to the rotating shaft, two threaded bolts are arranged at a section of the two connecting frames close to the docking flange, and a T-shaped slide groove is provided at a section of the two connecting frames away from the rotating shaft, a T-shaped slider is slidably connected in the T-shaped slide groove, the T-shaped slider is fixedly connected to a fixing rod, an end of the fixing rod close to the docking flange is fixedly connected to a fixing block, the fixing block is provided with two docking holes, the two docking holes are sleeved with two threaded bolts, a section of the two threaded bolts away from the connecting frames and passing through the docking holes is threadedly connected with a fixing nut, a section of the fixing rod away from the T-shaped slider is fixedly connected with a scraper, the number of fixing rods, T-shaped sliders, fixing blocks and scrapers is two, and the number of fixing nuts is four.

[0018] Preferably, the scraper is in contact with the inner wall of the conveying pipe, and the length of the scraper is equal to the distance from the sealing ring to the docking flange.

[0019] (III) Beneficial effects

[0020] 1. After using the scraper for a long time, the scraper may be worn, resulting in incomplete contact with the inner wall of the conveying pipe, which may cause incomplete scraping of materials. At this time, the hexagonal bolt can be removed to disassemble the docking flange, so that the second bearing is separated from the rotating shaft, and then the fixing nut can be removed. The fixing block can be pulled to separate the docking hole from the threaded bolt, and the fixing rod and the scraper can be slid out of the T-shaped slide groove through the T-shaped slider. At this time, a new scraping mechanism can be replaced to ensure that the scraper can contact the inner wall of the conveying pipe for a long time and ensure the scraping efficiency. The replaceable scraper can be replaced with a new one after long-term use, avoiding the problem of incomplete contact with the inner wall of the conveying pipe, and solving the problems of short service life and easy wear of the existing device.

[0021] Second, the scraper driven by the motor scrapes the residual materials in a circular motion on the inner wall of the conveying pipe without squeezing the materials, thus solving the technical problem that the existing device may clog and corrode the feeding material after long-term use. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The above description is only an overview of the technical solution of the utility model. In order to more clearly understand the technical means of the utility model and implement it according to the contents of the specification, the following is a detailed description of the preferred embodiments of the utility model in conjunction with the accompanying drawings.

[0023] Figure 1 This is the overall structure diagram of the device of the utility model;

[0024] Figure 2 This is the overall internal structure diagram of the device of the utility model;

[0025] Figure 3 This is a partial cross-sectional front view of the structure of the delivery pipe of the utility model;

[0026] Figure 4 It is a partial cross-sectional side view of the delivery pipe of the utility model;

[0027] Figure 5 This is the overall structural diagram of the scraping mechanism of the utility model;

[0028] Figure 6 This is a disassembled structural diagram of the scraping mechanism of the utility model.

[0029] Legend: 1. Fan; 2. Motor; 3. Conveying pipe; 4. Support frame; 5. First bearing; 7. Docking flange; 8. Rotating shaft; 9. Connecting frame; 101. Air duct; 301. Feeding pipe; 302. Discharging pipe; 303. Sealing ring; 304. Connecting flange; 401. Silo; 501. Second bearing; 502. Hexagon bolt; 503. Hexagon nut; 901. Threaded bolt; 902. T-type slide; 903. Fixing rod; 904. T-type slide; 905. Fixing block; 906. Docking hole; 907. Scraper; 908. Fixing nut. DETAILED DESCRIPTION

[0030] The embodiments of the present application provide a chemical material safe conveying device, which effectively solves the problems of the existing devices having a short service life, being easily worn, and having the possibility of clogging and corroding the conveying pipe after long-term use.

[0031] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 As shown, the technical solution in the embodiment of the present application effectively solves the technical problems that the existing device has a short service life, is easy to wear, and may clog and corrode the delivery pipe after long-term use. The overall idea is as follows:

[0032] In view of the problems existing in the prior art, the utility model provides a safe conveying equipment for chemical materials, including a fan 1 and a silo 401, the bottom surface of the silo 401 is fixedly connected to a support frame 4, a valve is arranged in the silo 401, an air outlet of the fan 1 is fixedly connected to an air duct 101, an end of the air duct 101 away from the fan 1 is fixedly connected to a conveying pipe 3, an end of the conveying pipe 3 close to the fan 1 is provided with a motor 2, a scraping mechanism is arranged in the motor 2, a detachable sealing mechanism is arranged at the end of the conveying pipe 3 away from the motor 2, the scraping mechanism includes two connecting frames 9, and the detachable sealing mechanism includes a docking flange 7.

[0033] A feeding pipe 301 is fixedly connected to the top surface of a section of the conveying pipe 3 close to the fan 1, and the end of the feeding pipe 301 away from the conveying pipe 3 is fixedly connected to the silo 401. The connection between the air guide 101 and the conveying pipe 3 is located in the middle section between the feeding pipe 301 and the end of the conveying pipe 3 close to the motor 2.

[0034] The driving shaft of the motor 2 is fixedly connected with a rotating shaft 8 , which passes through one end of the conveying pipe 3 close to the motor 2 and extends to the other end of the conveying pipe 3 away from the motor 2 . The rotating shaft 8 is located at the center axis of the conveying pipe 3 .

[0035] A first bearing 5 is provided at the position where the conveying pipe 3 is penetrated by the rotating shaft 8. The inner ring of the first bearing 5 is fixedly connected to the rotating shaft 8. The outer ring of the first bearing 5 is fixedly connected to the conveying pipe 3. A sealing ring 303 is fixedly installed on the inner wall of the conveying pipe 3 and at one end close to the first bearing 5.

[0036] A connecting flange 304 is fixedly mounted on the outer wall of one end of the conveying pipe 3 away from the first bearing 5 , and a discharge pipe 302 is fixedly connected to the bottom surface of a section of the conveying pipe 3 close to the connecting flange 304 .

[0037] The side of the connecting flange 304 away from the motor 2 is connected to a docking flange 7, and a second bearing 501 is arranged at the central axis of the docking flange 7. The inner ring of the second bearing 501 is slidably sleeved with the end of the rotating shaft 8 away from the motor 2. The docking flange 7 and the connecting flange 304 are both provided with six flange holes, and the six flange holes of the docking flange 7 and the connecting flange 304 are jointly sleeved with hexagonal bolts 502, and the hexagonal bolts 502 pass through one end of the docking flange 7 and the connecting flange 304 and are rotatably connected with hexagonal nuts 503.

[0038] The two connecting frames 9 are fixedly connected to the rotating shaft 8, and two threaded bolts 901 are arranged at a section of the two connecting frames 9 close to the docking flange 7. A T-shaped slide groove 902 is provided at a section of the two connecting frames 9 away from the rotating shaft 8. A T-shaped slider 904 is slidably connected in the T-shaped slide groove 902, and a fixing rod 903 is fixedly connected to the T-shaped slider 904. A fixing block 905 is fixedly connected to the end of the fixing rod 903 close to the docking flange 7. The fixing block 905 has two docking holes 906, and the two docking holes 906 are sleeved with two threaded bolts 901. A section of the two threaded bolts 901 away from the connecting frame 9 and passing through the docking holes 906 is threadedly connected with a fixing nut 908, and a section of the fixing rod 903 away from the T-shaped slider 904 is fixedly connected with a scraper 907. The number of the fixing rod 903, the T-shaped slider 904, the fixing block 905 and the scraper 907 are all two, and the number of the fixing nuts 908 is four.

[0039] The scraper 907 contacts the inner wall of the delivery pipe 3 , and the length of the scraper 907 is equal to the distance from the sealing ring 303 to the docking flange 7 .

[0040] After the scraper 907 is used for a long time, the scraper 907 may be worn, resulting in incomplete contact between it and the inner wall of the conveying pipe 3, which may cause incomplete scraping of the material. At this time, the hexagonal bolt 502 can be removed to disassemble the docking flange 7, so that the second bearing 501 is separated from the rotating shaft 8, and then the fixing nut 908 is removed, and the fixing block 905 can be pulled to separate the docking hole 906 from the threaded bolt 901, and the fixing rod 903 and the scraper 907 are slid out of the T-shaped slide groove 902 through the T-shaped slider 904. At this time, a new scraping mechanism can be replaced, ensuring that the scraper 907 can contact the inner wall of the conveying pipe 3 for a long time, ensuring the scraping efficiency, and the replaceable scraper 907 can be replaced with a new one after long-term use, avoiding the problem of incomplete contact with the inner wall of the conveying pipe 3, and solving the problems of short service life and easy wear of the existing device.

[0041] Working principle:

[0042] In the first step, the fan 1 blows air to the inside of the conveying pipe 3 through the air duct 101, and the support frame 4 loads materials into the conveying pipe 3 through the loading pipe 301. When the conveying pipe 3 is performing the conveying operation, the motor 2 is started regularly, and the motor 2 drives the rotating shaft 8 to rotate, and the rotating shaft 8 drives the connecting frame 9 to rotate, and the connecting frame 9 drives the scraper 907 to scrape the inner wall of the conveying pipe 3, so as to scrape off the residual material on the inner wall of the conveying pipe 3, which is blown by the airflow introduced by the air duct 101 and discharged from the discharge pipe 302.

[0043] In the second step, after the scraper 907 is used for a long time, the scraper 907 may be worn, resulting in incomplete contact between it and the inner wall of the conveying pipe 3, which may cause the material to not be scraped away completely. At this time, the hexagonal bolt 502 can be removed to disassemble the docking flange 7, so that the second bearing 501 is separated from the rotating shaft 8, and then the fixing nut 908 is removed. The fixing block 905 can be pulled to separate the docking hole 906 from the threaded bolt 901, and the fixing rod 903 and the scraper 907 are slid out of the T-shaped slide groove 902 through the T-shaped slider 904. At this time, a new scraping mechanism can be replaced to ensure that the scraper 907 can contact the inner wall of the conveying pipe 3 for a long time, thereby ensuring the scraping efficiency.

[0044] Finally, it should be noted that: Obviously, the above embodiments are only examples for clearly explaining the present invention, and are not intended to limit the implementation methods. For ordinary technicians in the relevant field, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived from this are still within the scope of protection of the present invention.

Claims

1. A chemical material safe conveying device, comprising a fan (1) and a silo (401), wherein a support frame (4) is fixedly connected to the bottom surface of the silo (401), and a valve is arranged in the silo (401), characterized in that: The air outlet of the fan (1) is fixedly connected to an air guide pipe (101), one end of the air guide pipe (101) away from the fan (1) is fixedly connected to a delivery pipe (3), an end of the delivery pipe (3) close to the fan (1) is provided with a motor (2), a scraping mechanism is provided inside the motor (2), and a detachable sealing mechanism is provided at one end of the delivery pipe (3) away from the motor (2); Wherein, the scraping mechanism comprises two connecting frames (9); Wherein, the detachable sealing mechanism comprises a docking flange (7).

2. A chemical material safe conveying equipment as claimed in claim 1, characterized in that: A feeding pipe (301) is fixedly connected to the top surface of a section of the conveying pipe (3) close to the fan (1), and an end of the feeding pipe (301) away from the conveying pipe (3) is fixedly connected to the silo (401); The connection between the air guide pipe (101) and the conveying pipe (3) is located in the middle section of the feeding pipe (301) and the conveying pipe (3) at one end close to the motor (2).

3. A chemical material safe conveying equipment as claimed in claim 1, characterized in that: The driving shaft of the motor (2) is fixedly connected to a rotating shaft (8), the rotating shaft (8) passes through an end of the conveying pipe (3) close to the motor (2) and extends to an end of the conveying pipe (3) away from the motor (2), and the rotating shaft (8) is located at the center axis of the conveying pipe (3).

4. A chemical material safe conveying equipment as claimed in claim 3, characterized in that: A first bearing (5) is provided at a position where the conveying pipe (3) is penetrated by the rotating shaft (8); an inner ring of the first bearing (5) is fixedly connected to the rotating shaft (8); an outer ring of the first bearing (5) is fixedly connected to the conveying pipe (3); and a sealing ring (303) is fixedly installed on the inner wall of the conveying pipe (3) and at one end close to the first bearing (5).

5. A chemical material safe conveying equipment as claimed in claim 4, characterized in that: A connecting flange (304) is fixedly mounted on the outer wall of one end of the conveying pipe (3) away from the first bearing (5), and a discharge pipe (302) is fixedly connected to the bottom surface of a section of the conveying pipe (3) close to the connecting flange (304).

6. A chemical material safe conveying equipment as claimed in claim 5, characterized in that: The connecting flange (304) is connected to a docking flange (7) at a side away from the motor (2), and a second bearing (501) is arranged at the center axis of the docking flange (7). The inner ring of the second bearing (501) is slidably sleeved with the end of the rotating shaft (8) away from the motor (2). The docking flange (7) and the connecting flange (304) are both provided with six flange holes, and the six flange holes of the docking flange (7) and the connecting flange (304) are both sleeved with hexagonal bolts (502), and the hexagonal bolts (502) pass through one end of the docking flange (7) and the connecting flange (304) and are rotatably connected with hexagonal nuts (503).

7. A chemical material safe conveying equipment as claimed in claim 1, characterized in that: The two connecting frames (9) are fixedly connected to the rotating shaft (8); a section of the two connecting frames (9) close to the docking flange (7) is provided with two threaded bolts (901); a section of the two connecting frames (9) away from the rotating shaft (8) is provided with a T-shaped sliding groove (902); a T-shaped sliding block (904) is slidably connected in the T-shaped sliding groove (902); the T-shaped sliding block (904) is fixedly connected with a fixing rod (903); an end of the fixing rod (903) close to the docking flange (7) is fixedly connected with a fixing block (905); the fixing block (905) is provided with two docking holes (906); the two docking holes (906) are sleeved with the two threaded bolts (901); a section of the two threaded bolts (901) away from the connecting frame (9) and passing through the docking holes (906) is threadedly connected with a fixing nut (908); a section of the fixing rod (903) away from the T-shaped sliding block (904) is fixedly connected with a scraper (907); The number of the fixing rod (903), the T-shaped sliding block (904), the fixing block (905) and the scraper (907) is two each, and the number of the fixing nuts (908) is four.

8. A chemical material safe conveying equipment as claimed in claim 7, characterized in that: The scraper (907) contacts the inner wall of the delivery pipe (3), and the length of the scraper (907) is equal to the distance from the sealing ring (303) to the docking flange (7).

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