A compressed air conveying apparatus

Abstract

The utility model discloses a compressed air type conveying equipment relates to air type conveying equipment technical field, aims at solving the technical problem that current compressed air type conveying equipment is easy to jam when conveying powder material, including air type conveyer, air type conveyer includes first pipe group, first pipe group includes the leakage pipe of vertical arrangement, the leakage pipe bottom is connected with the mixing pipe and is connected between mixing pipe both ends, the leakage pipe and mixing pipe constitute "T" shape, the material stirring subassembly, the utility model discloses through motor can drive reciprocating translation subassembly action, reciprocating translation subassembly drives wall scraping subassembly in mixing pipe, reciprocating translation between one end and the other end, constantly scrape and remove the wall sticking material, keep mixing pipe inside unobstructed, and motor can also drive the material stirring subassembly in the leakage pipe of feeding bin discharge port and rotate and stir, alleviate the jam in the leakage pipe of feeding bin discharge port, keep the feeding bin discharge unobstructed, and the effect of preventing blockage is good.

Description

Technical Field

[0001] This utility model relates to the field of air conveying equipment technology, and more specifically, to a compressed air conveying equipment. Background Technology

[0002] Compressed air conveying equipment is widely used in the industrial field. It mainly uses compressed air as a power source to transport various materials in closed pipelines. There are many types of compressed air conveying equipment, such as pneumatic conveyors, pressure conveying pneumatic conveying systems, positive pressure dense phase pneumatic conveying systems, and pneumatic pipeline logistics transmission systems.

[0003] In existing compressed air conveying equipment, the working principle of the pressure conveying pneumatic conveying system is as follows: a Roots blower provides continuous and stable compressed air, which mixes with the material below the feed hopper, causing the material to form a gas-solid two-phase flow in the pipeline. The material is suspended and conveyed in the pipeline at a high speed and a low concentration. The pressure conveying pneumatic conveying system can convey powdery materials such as cement, grain, and chemical raw materials over long distances and at high flow rates. However, when conveying powdery materials, the mutual compression between the powder particles generates significant static friction and cohesive force. Especially when the powder is not dry enough, the damp powder is prone to agglomeration and is difficult to continuously leak from the bottom outlet of the feed hopper. Furthermore, in the initial stage of mixing the material with compressed air, due to insufficient dryness, a large amount of powdery material tends to adhere to the pipe wall, gradually narrowing the pipe diameter and eventually leading to blockage. In view of this, we propose a compressed air conveying equipment. Utility Model Content

[0004] The purpose of this invention is to provide a compressed air conveying device to address the aforementioned shortcomings of the prior art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: it includes an air conveyor, the air conveyor includes a first pipe group, the first pipe group includes a vertically arranged leakage pipe, the bottom of the leakage pipe is connected to a mixing pipe and is connected between the two ends of the mixing pipe, the leakage pipe and the mixing pipe form a "T" shape;

[0006] The mixing assembly, located inside the first tube group, can be driven by an electric motor;

[0007] A scraper assembly is slidably connected to the inner wall of the mixing tube, including a scraper frame ring, wherein the shape of the outer wall of the scraper frame ring is adapted to the shape of the inner wall of the mixing tube and can be slidably fitted.

[0008] The reciprocating translation component is installed on the outer wall of the mixing tube and can be driven by an electric motor to move the scraping component on the inner wall of the mixing tube.

[0009] As a further description of the above technical solution: the air conveyor also includes a feeding bin, and the bottom outlet of the feeding bin is connected to a leakage pipe.

[0010] As a further description of the above technical solution: the two ends of the mixing pipe are respectively connected to a Roots blower and a conveying pipe, and the end of the conveying pipe is connected to a storage silo.

[0011] As a further description of the above technical solution: the mixing assembly includes a central shaft rotatably connected to the inner wall of the discharge pipe, and mixing blades are installed on the outer wall of the central shaft.

[0012] As a further description of the above technical solution: the reciprocating translational assembly includes a mounting shell, a lead screw is rotatably connected to the inner side wall of the mounting shell, the lead screw can be driven by a motor, the surface of the lead screw is grooved and the groove includes a clockwise threaded groove and a counterclockwise threaded groove that are connected end to end, a sliding pin is slidably connected in the groove on the surface of the lead screw, a slip ring is slidably connected to the outer side wall of the lead screw, the sliding pin is fixed to the inner side wall of the slip ring, and a wall scraping assembly is connected to the outer side wall of the slip ring through a connecting rod and the connecting rod is slidably connected in a groove opened on one side of the mixing pipe.

[0013] As a further description of the above technical solution: a transmission component is installed at the end of the lead screw and a central shaft is connected through the transmission component. The transmission component is a belt-type component composed of a pulley and a belt.

[0014] As a further description of the above technical solution: the outer wall of the scraper frame ring is bonded with a flexible strip and is slidably connected to the inner wall of the mixing tube through the flexible strip.

[0015] The compressed air conveying device provided by this utility model, as described above, has the following beneficial effects:

[0016] This invention uses an electric motor to drive a reciprocating translation component, which in turn drives a wall scraping component to move back and forth between one and the other end of the mixing tube, continuously scraping away material adhering to the wall and keeping the mixing tube unobstructed. At the same time, the electric motor can also drive a stirring component to rotate and stir the material in the discharge pipe of the feeding hopper, reducing blockage in the discharge pipe of the feeding hopper, keeping the material discharge from the feeding hopper unobstructed, and providing excellent anti-blocking effect. This solves the problem of easy blockage in existing compressed air conveying equipment when conveying powdery materials. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0018] Figure 1 This is a schematic diagram of the exploded structure provided for an embodiment of the present utility model;

[0019] Figure 2 This is a schematic diagram of the structure of the reciprocating translation component and the wall scraping component assembly provided in an embodiment of the present utility model;

[0020] Figure 3 This is an exploded view of the reciprocating translation component provided in an embodiment of the present utility model;

[0021] Figure 4 This is a schematic diagram of the overall structure provided for an embodiment of the present utility model.

[0022] Explanation of reference numerals in the attached figures:

[0023] 1. Air conveyor; 2. Agitator assembly; 3. Transmission assembly; 4. Reciprocating translation assembly; 5. Wall scraper assembly; 6. Electric motor;

[0024] 101. Feeding bin; 102. Roots blower; 103. First pipe assembly; 104. Conveying pipe; 105. Storage bin;

[0025] 1031. Discharge pipe; 1032. Mixing pipe;

[0026] 201. Central shaft; 202. Stirring blades;

[0027] 401. Mounting housing; 402. Lead screw; 403. Clockwise threaded groove; 404. Counterclockwise threaded groove; 405. Slip ring; 406. Sliding pin;

[0028] 501. Scraper frame ring; 502. Flexible strip. Detailed Implementation

[0029] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0030] Please see Figures 1-4 The present invention provides a technical solution: including an air conveyor 1, the air conveyor 1 including a first pipe group 103, the first pipe group 103 including a vertically arranged material leakage pipe 1031, the bottom of the material leakage pipe 1031 is connected to a mixing pipe 1032 and is connected between the two ends of the mixing pipe 1032, the material leakage pipe 1031 and the mixing pipe 1032 form a "T" shape;

[0031] In another embodiment of the present invention, preferably, the mixing pipe 1032 is connected to a Roots blower 102 and a conveying pipe 104 at both ends, and the end of the conveying pipe 104 is connected to a storage silo 105.

[0032] In another embodiment of the present invention, preferably, the air conveyor 1 further includes a feeding bin 101, and the bottom outlet of the feeding bin 101 is connected to a leakage pipe 1031.

[0033] The feeding hopper 101 is located upstream of the equipment, and its bottom outlet is directly connected to the top of the leakage pipe 1031, through which the material enters; the Roots blower 102 serves as the air source power, and its outlet is connected to one end of the mixing pipe 1032 to provide the compressed air required for conveying; the conveying pipe 104 is connected to the other end of the mixing pipe 1032 and is responsible for conveying the gas-material mixture to the storage hopper 105 at the end.

[0034] The mixing assembly 2 is located inside the first tube group 103 and can be driven by the electric motor 6;

[0035] In another embodiment of the present invention, the mixing assembly 2 includes a central shaft 201 rotatably connected to the inner wall of the discharge pipe 1031, and a mixing blade 202 is installed on the outer wall of the central shaft 201.

[0036] The mixing component 2 is located inside the vertical discharge pipe 1031 and is used to mix materials to prevent blockage of the discharge port of the feeding hopper 101; the wall scraping component 5 is located inside the horizontal mixing pipe 1032 and is used to clean the materials adhering to the pipe wall; the reciprocating translation component 4 is installed outside the mixing pipe 1032 and, together with the motor 6, is the power mechanism for driving the wall scraping component 5.

[0037] The function of the mixing component 2 is to break up and loosen the material at the discharge port of the feeding bin 101 through rotational motion, effectively preventing blockage caused by material agglomeration and ensuring smooth material discharge;

[0038] The wall scraping assembly 5 is slidably connected to the inner wall of the mixing tube 1032, and includes a wall scraping frame ring 501. The shape of the outer wall of the wall scraping frame ring 501 is adapted to the shape of the inner wall of the mixing tube 1032 and can be slidably engaged.

[0039] In another embodiment of the present invention, a flexible strip 502 is adhered to the outer wall of the scraper frame ring 501 and is slidably connected to the inner wall of the mixing tube 1032 through the flexible strip 502.

[0040] The flexible strip 502 can be made of wear-resistant rubber or polyurethane. The scraping component 5 maintains sliding contact with the inner wall of the mixing tube 1032 through the flexible strip 502, which can both scrape off the adhering material and reduce hard wear on the tube wall.

[0041] The reciprocating translation component 4 is installed on the outer wall of the mixing tube 1032 and can be driven by the motor 6 to drive the scraping component 5 to slide on the inner wall of the mixing tube 1032.

[0042] In another embodiment of the present invention, the reciprocating translation component 4 includes a mounting shell 401. A lead screw 402 is rotatably connected to the inner wall of the mounting shell 401. The lead screw 402 can be driven by a motor 6. The surface of the lead screw 402 is grooved, and the groove includes a clockwise threaded groove 403 and a counterclockwise threaded groove 404 that are connected end to end. A sliding pin 406 is slidably connected in the groove on the surface of the lead screw 402. A slip ring 405 is slidably connected to the outer wall of the lead screw 402. The sliding pin 406 is fixed to the inner wall of the slip ring 405. The outer wall of the slip ring 405 is connected to a wall scraping component 5 through a connecting rod, and the connecting rod is slidably connected in a groove opened on one side of the mixing pipe 1032.

[0043] When the motor 6 drives the lead screw 402 to rotate, the connecting rod is slidably connected in the groove opened on one side of the mixing tube 1032 and is guided in a straight line. The sliding pin 406 embedded in the groove guides the slip ring 405 to make continuous, automatically reversing reciprocating linear motion along the lead screw 402.

[0044] In another embodiment of the present invention, a transmission assembly 3 is installed at the end of the lead screw 402 and a central shaft 201 is connected through the transmission assembly 3. The transmission assembly 3 is a belt-type assembly composed of a pulley and a belt.

[0045] The electric motor 6 can also transmit power through the lead screw 402, and drive the central shaft 201 of the mixing assembly 2 to rotate through the transmission assembly 3;

[0046] Working principle: This embodiment provides a compressed air conveying device. When in use, it is powered by an external power source. The Roots blower 102 is turned on by an external switch. The Roots blower 102 continuously injects compressed air into the mixing pipe 1032 to form a conveying airflow.

[0047] Simultaneously, an external power supply is used to turn on the motor 6 via an external switch. The mixing assembly 2 includes a central shaft 201 rotatably connected to the inner wall of the discharge pipe 1031. A stirring blade 202 is installed on the outer wall of the central shaft 201. The stirring blade 202 is preferably made of high-strength metal material. The motor 6 can transmit power through the lead screw 402 and drive the central shaft 201 of the mixing assembly 2 to rotate through the transmission assembly 3. Therefore, the motor 6 can drive the mixing assembly 2 to rotate and stir the material in the discharge pipe 1031 at the outlet of the feeding bin 101, reducing the blockage in the discharge pipe 1031 at the outlet of the feeding bin 101, keeping the material discharge from the feeding bin 101 unobstructed, and achieving a good anti-blocking effect. The function of the mixing assembly 2 is to disperse and loosen the material at the discharge port of the feeding bin 101 through rotational movement, effectively preventing blockage caused by material agglomeration and ensuring smooth material discharge.

[0048] The transmission component 3 is a belt-type component consisting of pulleys and belts. Preferably, there are two pulleys, which are respectively installed on the central shaft 201 and the end of the lead screw 402. The outer walls of the two pulleys are provided with belts and are driven to each other by belts. This realizes a dual anti-clogging design that allows a single motor 6 to drive the mixing component 2 and the wall scraping component 5 to operate synchronously. It also saves the cost of purchasing additional motors 6 and the electricity cost of extra motors 6 because only a single motor 6 is used for driving.

[0049] Since the screw 402 has a clockwise threaded groove 403 and a counterclockwise threaded groove 404 connected end to end, when the motor 6 drives the screw 402 to rotate, the connecting rod is slidably connected in the groove opened on one side of the mixing tube 1032 and is guided in a straight line. The sliding pin 406 embedded in the groove guides the slip ring 405 to make a continuous, automatically reversing reciprocating linear motion along the screw 402, which drives the wall scraping assembly 5 to slide and scrape off the material adhering to the wall of the mixing tube 1032. The wall scraping assembly 5 maintains sliding contact with the inner wall of the mixing tube 1032 through the flexible strip 502. The flexible strip 502 can be a wear-resistant rubber or polyurethane strip, which can not only scrape off the adhering material, but also reduce hard wear on the tube wall.

[0050] The reciprocating translation component 4 can be driven by the motor 6. The reciprocating translation component 4 drives the wall scraping component 5 to reciprocate between one end and the other end in the mixing tube 1032, continuously scraping off the material adhering to the wall and keeping the mixing tube 1032 unobstructed (the motor 6 is an existing product on the market).

[0051] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A compressed air conveying device, characterized in that, The system includes an air conveyor (1), which includes a first pipe assembly (103). The first pipe assembly (103) includes a vertically arranged material leakage pipe (1031). The bottom of the material leakage pipe (1031) is connected to a mixing pipe (1032) and is connected between the two ends of the mixing pipe (1032). The material leakage pipe (1031) and the mixing pipe (1032) form a "T" shape. The mixing assembly (2) is located inside the first tube group (103) and can be driven by the electric motor (6); The wall scraping assembly (5) is slidably connected to the inner wall of the mixing tube (1032), including a wall scraping frame ring (501). The outer wall shape of the wall scraping frame ring (501) is adapted to the shape of the inner wall of the mixing tube (1032) and can be slidably engaged. The reciprocating translation component (4) is installed on the outer wall of the mixing tube (1032) and can be driven by the motor (6) to drive the scraping component (5) to slide on the inner wall of the mixing tube (1032).

2. The compressed air conveying device according to claim 1, characterized in that, The air conveyor (1) also includes a feeding bin (101), and the bottom outlet of the feeding bin (101) is connected to a leakage pipe (1031).

3. The compressed air conveying device according to claim 2, characterized in that, The mixing pipe (1032) is connected to a Roots blower (102) and a conveying pipe (104) at both ends, and the end of the conveying pipe (104) is connected to a storage silo (105).

4. The compressed air conveying device according to claim 3, characterized in that, The mixing assembly (2) includes a central shaft (201) rotatably connected to the inner wall of the discharge pipe (1031), and a mixing blade (202) is installed on the outer wall of the central shaft (201).

5. A compressed air conveying device according to claim 4, characterized in that, The reciprocating translation component (4) includes a mounting shell (401), and a lead screw (402) is rotatably connected to the inner wall of the mounting shell (401). The lead screw (402) can be driven by a motor (6). The surface of the lead screw (402) is grooved, and the groove includes a clockwise threaded groove (403) and a counterclockwise threaded groove (404) that are connected end to end. A sliding pin (406) is slidably connected in the groove on the surface of the lead screw (402). A slip ring (405) is slidably connected to the outer wall of the lead screw (402). The sliding pin (406) is fixed to the inner wall of the slip ring (405). The outer wall of the slip ring (405) is connected to a wall scraping component (5) through a connecting rod, and the connecting rod is slidably connected in a groove opened on one side of the mixing pipe (1032).

6. A compressed air conveying device according to claim 5, characterized in that, The lead screw (402) is equipped with a transmission assembly (3) at its end and is connected to a central shaft (201) through the transmission assembly (3). The transmission assembly (3) is a belt-type assembly consisting of a pulley and a belt.

7. A compressed air conveying device according to claim 1, characterized in that, The outer wall of the scraper frame ring (501) is bonded with a flexible strip (502) and is slidably connected to the inner wall of the mixing tube (1032) through the flexible strip (502).

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