Hot raw material conveyor for quick lime digestion system

Abstract

The utility model discloses a hot raw material conveyor for a quick lime digestion system. The hot raw material conveyor comprises a spiral conveying mechanism arranged in a conveying pipeline, a plurality of connecting rods are correspondingly and annularly arranged at the two ends of a transmission shaft of the spiral conveying mechanism, and a scraping plate attached to the inner wall of the conveying pipeline is arranged between every two corresponding connecting rods; a plurality of notches are formed in the side, close to the inner wall of the conveying pipeline, of the scraping plate, a sliding rod penetrating through the scraping plate is arranged in each notch, a roller is rotationally arranged at the end, close to the inner wall of the conveying pipeline, of each sliding rod, and a beating plate is arranged at the other end of each sliding rod; a plurality of linkage mechanisms used for intermittently driving the sliding rod to slide towards the transmission shaft are arranged on the circumferential inner wall of the conveying pipeline at intervals. A reset spring is arranged on the sliding rod between the material beating plate and the material scraping plate in a sleeved mode, one end of the reset spring is fixedly connected with the material beating plate, and the other end of the reset spring is fixedly connected with the material scraping plate. According to the conveyor, attached materials are scraped off through the material scraping plate, material blocks are scattered through the material beating plate, and pipeline blockage is effectively prevented.

Description

TECHNICAL FIELD

[0001] The utility model relates to a hot raw material conveyor for quicklime digestion system belongs to desulfurizer preparation technical field. BACKGROUND

[0002] At present, in the industrial flue gas desulfurization technology, quicklime digestion is one of the key links in the preparation of desulfurizer. After heating, the quicklime forms hot raw material, which is divided by the lock wind distribution three way valve, and then under the action of gravity (through the height difference of equipment) through the conveying pipeline, and then through the gate valve into the weighing bin for weighing and metering, and then discharged into the digester for digestion. But the quicklime will form clumps after heating, which will cause pipeline blockage in the conveying process; at the same time, part of the hot raw material will also easily cause pipeline blockage due to the attachment of the conveying pipeline because of the temperature drop. SUMMARY

[0003] The utility model discloses a hot raw material conveyor for quicklime digestion system can scrape the material attached to the inner wall of the conveying pipeline through the scraping plate, and can also scatter the material block through the beating plate, thereby effectively preventing the pipeline from being blocked.

[0004] In order to realize the above-mentioned purpose, the utility model adopts the following technical scheme:

[0005] A hot raw material conveyor for quicklime digestion system, comprising a spiral conveying mechanism arranged in the conveying pipeline;

[0006] A plurality of connecting rods extending radially along the transmission shaft are arranged in correspondence with the two ends of the transmission shaft of the spiral conveying mechanism, and a scraping plate is arranged in correspondence with the two connecting rods and is in close contact with the inner wall of the conveying pipeline;

[0007] A plurality of notches are formed on the side of the scraping plate close to the inner wall of the conveying pipeline, a sliding rod is arranged in each notch and penetrates through the scraping plate, a roller is rotatably arranged at the end of the sliding rod close to the inner wall of the conveying pipeline, and a beating plate is arranged at the other end of the sliding rod;

[0008] A plurality of linkage mechanisms for intermittently driving the sliding rod to slide towards the transmission shaft are arranged at intervals on the circumferential inner wall of the conveying pipeline;

[0009] A reset spring is arranged on the sliding rod between the beating plate and the scraping plate, one end of the reset spring is fixedly connected with the beating plate, the other end of the reset spring is fixedly connected with the scraping plate, and the reset spring is used to drive the sliding rod to reset in the direction away from the transmission shaft.

[0010] Preferably, the spiral conveying mechanism comprises two fixed plates arranged at intervals in the conveying pipeline along the radial direction, the transmission shaft is coaxially arranged with the conveying pipeline and is rotatably installed between the two fixed plates, and a spiral blade is arranged on the conveying shaft; an electric motor for driving the transmission shaft to rotate is installed on the outside of one of the fixed plates.

[0011] Preferably, each linkage mechanism comprises a linkage ring embedded in the inner wall of the conveying pipe and corresponding to the notch on the scraper plate, and a plurality of linkage blocks are uniformly arranged on the inner ring surface of the linkage ring, and the linkage blocks have arc surfaces with a slope gradually increasing along the rotation direction of the transmission shaft.

[0012] Preferably, the arc surfaces of the linkage blocks on different linkage rings are the same or different.

[0013] Preferably, the number of connecting rods arranged at each end of the transmission shaft is at least two.

[0014] The beneficial effects of the present application are as follows:

[0015] The hot raw material is conveyed by the spiral conveying mechanism, and the inner wall of the conveying pipe is cleaned by the scraper plate during the rotation of the transmission shaft, so that the material adhering to the inner wall of the conveying pipe can be scraped off; during the rotation of the scraper plate, the scraper plate is first pushed outwards due to the existence of the uphill surface of the linkage block, and after the roller is separated from the linkage block, the scraper plate is pulled back under the action of the reset spring, so that the material block can be broken up in this process, thereby preventing the pipe from being blocked. BRIEF DESCRIPTION OF DRAWINGS

[0016] Fig. 1 is a schematic view of the structure of the conveyor;

[0017] Fig. 2 is a sectional view of the conveyor;

[0018] Fig. 3 is a split schematic view of the sliding rod.

[0019] The meanings of the main reference signs in the drawings are as follows:

[0020] 1, conveying pipe, 2, fixed plate, 3, transmission shaft, 4, motor, 5, connecting rod, 6, scraper plate, 7, sliding rod, 8, roller, 9, material beating plate, 10, linkage ring, 11, linkage block, 12, arc surface, 13, reset spring, 14, propeller blade. DETAILED DESCRIPTION

[0021] The present embodiment provides a hot raw material conveyor for a quicklime digestion system, as shown in Figs. 1-3As shown, including the spiral conveying mechanism (conveying pipe 1 is inclined downward or vertically downward) arranged in the conveying pipe 1; The spiral conveying mechanism includes two fixed plates 2 (the interval is arranged according to the length of the conveying pipe 1) arranged in the conveying pipe 1 in the radial direction, and the transmission shaft 3 coaxially arranged with the conveying pipe 1 is rotatably connected between the two fixed plates 2, and the propeller blade 14 is arranged on the conveying shaft. A motor 4 is mounted on the outside of one of the fixed plates 2 for driving the transmission shaft 3 to rotate about its own axis. The motor 4 drives the transmission shaft 3 to rotate and then transports the hot raw material from one end of the conveying pipe 1 to the other end through the propeller blade 14. In practical application, a short connecting pipe is arranged on the conveying pipe 1 and inserted into the conveying pipe 1, and the cable of the motor 4 is connected with the external controller and / or power supply after penetrating through the short connecting pipe.

[0022] Corresponding to the transmission shaft 3 of the spiral conveying mechanism, six connecting rods 5 extending in the radial direction of the transmission shaft 3 are arranged at both ends of the transmission shaft 3 (three connecting rods 5 at each end and uniformly distributed along the axial direction of the transmission shaft 3), and a scraping plate 6 is arranged between the corresponding two connecting rods 5 and abuts against the inner wall of the conveying pipe 1. When the transmission shaft 3 is driven, the connecting rod 5 rotates the scraping plate 6, which can then scrape off the material attached to the inner wall of the conveying pipe 1.

[0023] A plurality of notches are formed on the side of the scraping plate 6 close to the inner wall of the conveying pipe 1, and a sliding rod 7 penetrating through the scraping plate 6 is arranged in each notch. The sliding rod 7 is rotatably provided with a roller 8 at the end close to the inner wall of the conveying pipe 1, and is provided with a material beating plate 9 at the other end. Three groups of linkage mechanisms for intermittently driving the sliding rod 7 to slide towards the transmission shaft 3 are arranged at intervals on the circumferential inner wall of the conveying pipe 1 (the number can be selected according to the length of the scraping plate 6); Each linkage mechanism includes a linkage ring 10 embedded in the inner wall of the conveying pipe 1 and corresponding to the notch of the scraping plate 6, a plurality of linkage blocks 11 are uniformly arranged on the inner ring surface of the linkage ring 10, and the linkage blocks 11 have an arc surface 12 with a slope gradually increasing in the rotation direction of the transmission shaft 3 (the roller 8 can abut against the arc surface 12). Meanwhile, a reset spring 13 is sleeved on the sliding rod 7 between the material beating plate 9 and the scraping plate 6, one end of the reset spring 13 is fixedly connected with the material beating plate 9, and the other end is fixedly connected with the scraping plate 6, for driving the sliding rod 7 to reset towards the direction away from the transmission shaft 3.

[0024] Specifically, in the process of rotating the motor 4 to drive the transmission shaft 3 and the scraping plate 6, the roller 8 rotates along the linkage ring 10 and rolls along the arc surface 12 when encountering the linkage block 11. Because the slope of the arc surface 12 is constantly rising, the sliding rod 7 can be pushed out towards the direction of the transmission shaft 3, so that the beating plate 9 can break up the large material block and reduce the situation of blocking in the conveying pipeline 1. When the roller 8 is separated from the arc surface 12 of the linkage block 11, the sliding rod 7 will be driven to slide away from the transmission shaft 3 under the action of the reset spring 13; in the process of continuing to rotate, the pulley will contact and slide with the arc surface 12 of the next linkage block 11, continue to drive the sliding rod 7 to slide towards the direction of the transmission shaft 3, and so on, so as to realize the breaking up of the material block.

[0025] The above is only the preferred embodiment of the present application, and it should be pointed out that for ordinary skilled in the art, without departing from the principles of the present application, some improvements and refinements can be made, and these improvements and refinements should also be considered as the protection scope of the present application.

Claims

1. A hot raw meal conveyor for a quicklime slaking system, characterized in that, The screw conveying mechanism is arranged in the conveying pipe; A plurality of connecting rods extending radially along the transmission shaft are arranged on the corresponding rings at both ends of the transmission shaft of the screw conveying mechanism, and a scraping plate is arranged between the corresponding two connecting rods and abuts against the inner wall of the conveying pipe; A plurality of notches are formed on the side of the scraping plate close to the inner wall of the conveying pipe, and a sliding rod penetrating through the scraping plate is arranged in each notch, one end of the sliding rod close to the inner wall of the conveying pipe is rotatably provided with a roller, and the other end is provided with a beating plate; A plurality of linkage mechanisms for intermittently driving the sliding rod to slide towards the transmission shaft are arranged at intervals on the circumferential inner wall of the conveying pipe; A reset spring is sleeved on the sliding rod between the beating plate and the scraping plate, one end of the reset spring is fixedly connected with the beating plate, and the other end is fixedly connected with the scraping plate, for driving the sliding rod to reset towards the direction away from the transmission shaft.

2. The hot raw meal conveyor for quicklime slaking systems according to claim 1, characterized in that, The screw conveying mechanism comprises two fixed plates arranged at intervals in the conveying pipe along the radial direction, the transmission shaft is coaxially arranged with the conveying pipe and is rotatably installed between the two fixed plates, and a screw blade is arranged on the conveying shaft; an electric motor for driving the transmission shaft to rotate is installed on the outside of one of the fixed plates.

3. The hot raw meal conveyor for quicklime slaking systems according to claim 1, characterized in that, Each linkage mechanism comprises a linkage ring embedded in the inner wall of the conveying pipe and corresponding to the notch on the scraping plate, a plurality of linkage blocks are uniformly arranged on the inner ring surface of the linkage ring, and the linkage blocks have arc surfaces with gradually increasing slopes along the rotation direction of the transmission shaft.

4. The hot raw meal conveyor for quicklime slaking systems according to claim 1, characterized in that, The arc surfaces of the linkage blocks on different linkage rings have the same or different radii.

5. The hot raw meal conveyor for quicklime slaking systems according to claim 1, characterized in that, The number of connecting rods arranged at each end of the transmission shaft is at least two.

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