A vertical trough device for a pelletizing vertical furnace

Abstract

The present invention discloses a vertical trough device for a pelletizing shaft furnace, which relates to the technical field of pelletizing shaft furnaces and includes a trough body, a material stacking member, a cooling water tank, and an air-cooling continuous discharge mechanism. The present invention arranges the material stacking member and the air-cooling continuous discharge mechanism on the trough body, and the output end of the cylinder drives the top pressure plate to move, drives the push rod and the mounting frame to slide forward synchronously along the mounting seat, so that the pellets can be discharged evenly and continuously. The discharge volume is flexibly adjustable by selecting an appropriate material stacking member model, and the purpose of maintaining a balance with the material distribution volume is achieved; by providing ventilation holes and guide grooves, and the guide grooves are non-through settings, and the curvature of the guide grooves matches the motion trajectory of the lower end of the corrugated material plate, and an air collecting pipe is provided to match the ventilation holes, so that the trough body is in a sealed condition during the working process, greatly reducing the phenomenon of dust spraying on site and reducing the labor intensity of on-site sanitation cleaning for operators.

Description

Technical Field

[0001] The invention relates to the technical field of pelletizing shaft furnaces, and in particular to a pelletizing shaft furnace straight trough device. Background Art

[0002] In the shaft furnace pelletizing process, the discharge stage is a critical link, and its performance directly impacts the stable operation of the entire production system. In actual production, multiple factors influence the discharge efficiency of the shaft furnace. However, the temperature of the pellets reaching the cooling zone after passing through the shaft furnace's roasting and soaking zones is generally above 1000°C, and the discharge temperature after primary cooling remains above 800°C. This excessively high pellet temperature presents significant challenges for discharge. The descending discharge pipe connecting the conical funnel is exposed to high temperatures for extended periods, making it prone to deformation, bending, fracture, and uneven discharge rates. The lifespan of the descending discharge pipe significantly impacts the shaft furnace's operational efficiency. Due to its suboptimal operation, the descending discharge pipe requires replacement approximately monthly, resulting in high costs and significant unplanned downtime, impacting pellet production capacity. Furthermore, on-site dust spraying is a serious issue, making on-site cleaning labor-intensive for operators. Summary of the Invention

[0003] The object of the present invention is to provide a vertical trough device for a pelletizing shaft furnace to solve the above-mentioned defects caused by the prior art.

[0004] A vertical trough device for a pelletizing vertical furnace includes a trough body, a material stacking piece, a cooling water tank and an air-cooling continuous arrangement mechanism. Ventilation holes are provided on both sides of the trough body, and a guide groove is provided in the trough body below the ventilation holes. The material stacking piece is obliquely and detachably installed inside the trough body. The cooling water tank is installed at the outer end of the trough body. The outer side of the trough body is covered with a water circulation plate connected to the cooling water tank. The air-cooling continuous arrangement mechanism is installed on the trough body and is used to maintain uniform and continuous discharge of pellets and keep it balanced with the distribution amount.

[0005] Preferably, the air-cooled chain mechanism includes a cylinder, a blow hood and a material stripping plate, the output end of the cylinder is installed with a top pressure plate, and the other side of the top pressure plate is detachably installed with a symmetrically arranged push rod, the other end of the push rod is slidably arranged on the side end of the trough body through a mounting seat, the middle of the push rod is fixedly connected to a mounting bracket, the upper end of the mounting bracket is fixedly connected to a rack, one side of the blow hood is connected to the top pressure plate, and the other side of the blow hood is connected to an air collecting pipe, the material stripping piece is rotatably arranged inside the trough body, the upper two side ends of the material stripping piece pass through the trough body and are coaxially fixedly connected with gears, the gear is meshed with the rack, and the lower end of the material stripping piece is limitedly slidably arranged in the guide groove.

[0006] Preferably, the guide groove is non-through, and the curvature of the guide groove matches the motion trajectory of the lower end of the corrugated plate.

[0007] Preferably, the material stacking pieces are uniformly distributed strip-shaped opening pieces, and the opening width matches the diameter of the pellets.

[0008] Preferably, the lower end of the material-diverting plate has no rigid contact with the end surface of the material-encoding member during the flipping and dipping process.

[0009] Preferably, the air collecting pipe is matched with the ventilation hole.

[0010] The advantages of the present invention are:

[0011] By arranging the material stacking piece and the air-cooled continuous arrangement mechanism on the trough body, the output end of the cylinder drives the top pressure plate to move, drives the push rod and the mounting frame to slide forward along the mounting seat synchronously, and the rack thereon moves synchronously, and then drives the material stripping plate to flip clockwise through the gear meshing with the rack, pushing the pellets on the material stripping plate and the material stacking piece to fall into the strip opening on the material stacking piece in turn, and then fall to the bottom, so that the pellets can be discharged evenly and continuously. The discharge volume can be flexibly adjusted by selecting the appropriate material stacking piece model, and the purpose of maintaining a balanced material distribution volume is achieved;

[0012] By setting up ventilation holes and guide grooves, and the guide grooves are non-through settings, and the curvature of the guide grooves matches the movement trajectory of the lower end of the corrugated material plate, and setting up air collecting pipes that match the ventilation holes, the material trough body is kept in a sealed condition during its entire working process, which greatly reduces the phenomenon of on-site dust spraying and reduces the labor intensity of on-site sanitation cleaning for operators. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural schematic diagram of the present invention.

[0014] Figure 2 It is a structural schematic diagram of the material trough body in the present invention.

[0015] Figure 3 It is a structural schematic diagram of the air-cooled chain mechanism in the present invention.

[0016] Figure 4 It is a structural schematic diagram of the coding material in the present invention.

[0017] Figure 5 It is an internal schematic diagram of part of the structure in the present invention.

[0018] Among them, 1- trough body; 2- material stacking parts, 3- cooling water tank, 4- air cooling chain mechanism, 11- ventilation hole, 12- guide groove, 5- water circulation plate, 401- cylinder, 402- blower cover, 403- material paddle plate, 404- top pressure plate, 405- push rod, 406- mounting seat, 407- mounting frame, 408- rack, 409- air collecting pipe, 410- gear. DETAILED DESCRIPTION

[0019] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0020] like Figures 1 to 5 As shown, a vertical trough device for a pelletizing vertical furnace includes a trough body 1, a material stacking member 2, a cooling water tank 3 and an air-cooling continuous arrangement mechanism 4. Ventilation holes 11 are provided on both sides of the trough body 1, and a guide groove 12 is provided in the trough body 1 below the ventilation holes 11. The material stacking member 2 is obliquely and detachably installed inside the trough body 1, the cooling water tank 3 is installed at the outer end of the trough body 1, and the outer side of the trough body 1 is covered with a water circulation plate 5 connected to the cooling water tank 3. The air-cooling continuous arrangement mechanism 4 is installed on the trough body 1, and is used to maintain uniform and continuous discharge of pellets, and keep it balanced with the distribution amount.

[0021] It should be noted that the trough body 1 is made of 16# high manganese alloy with strong heat resistance, wear resistance and tensile strength, and is assembled with the lower part of the external conical hopper to improve service life and overall stability. The assembly process uses concave and convex flanges embedded up and down to improve overall sealing.

[0022] The cam 408 is connected to the cam 409 by the spring 410, and the cam 409 is connected to the cam 409 by the spring 411.

[0023] In this embodiment, the guide groove 12 is non-through, and the curvature of the guide groove 12 matches the motion trajectory of the lower end of the corrugated plate.

[0024] It is worth mentioning that the material-stacking members 2 are uniformly distributed strip-shaped opening members, and the opening width matches the diameter of the pellets.

[0025] In this embodiment, the lower end of the material shifting plate 403 has no rigid contact with the end surface of the material encoding member 2 during the flipping and shifting process.

[0026] In addition, the air collecting pipe 409 is matched with the ventilation hole 11.

[0027] Working process and principle: During the use of the present invention, first, the trough body 1 receives the pellets falling from above, and most of the pellets are accumulated on the material coding piece 2 and the material stripping plate 403. Then, the cylinder 401 is started so that its output end drives the top pressure plate 404 to push forward, driving the push rod 405 and the mounting frame 407 to slide forward along the mounting seat 406 synchronously, and the rack 408 thereon moves synchronously, and then the gear 410 engaged with the rack 408 drives the material stripping plate 403 to flip clockwise, pushing the material stripping plate 403 and the material coding piece 2 to fall into the strip opening on the material coding piece 2 in turn, and then fall to the bottom. In the process of pushing 404 forward, the air inside the corrugated blast hood 402 is squeezed at the same time, and quickly enters the trough body 1 through the air collecting pipes 409 and 11, and each pellet dropped by the material coding piece 2 is fully cooled one by one.

[0028] During the return stroke, the output end of the cylinder 401 pulls the top pressure plate 404 to slide in the opposite direction. After performing the above operation in reverse, it is ready to drop the next pellet ore. During the whole process, the cooling water tank 3 keeps the circulating cooling water in the phase water circulation plate 5 to ensure that the overall temperature of the trough body 1 is at a relatively low level. The circulating cooling water tank process is adopted on all four sides to reduce the heating temperature of the equipment and extend the overall service life.

[0029] Based on the above, the present invention sets a material coding piece 2 and an air-cooled continuous arrangement mechanism 4 on the trough body 1, and the output end of the cylinder 401 drives the top pressure plate 404 to move, drives the push rod 405 and the mounting frame 407 to slide forward along the mounting seat 406 synchronously, and the rack 408 thereon moves synchronously, and then drives the prying plate 403 to flip clockwise through the gear 410 engaged with the rack 408, pushing the prying plate 403 and the pellets on the material coding piece 2 to fall into the strip opening on the material coding piece 2 in turn, and then fall to the bottom, so that the pellets can achieve the effect of uniform and continuous discharge, and the discharge amount can be flexibly adjusted by selecting the appropriate model of the material coding piece 2, and the purpose of maintaining a balanced amount of material is achieved;

[0030] By providing ventilation holes 11 and guide grooves 12, and the guide grooves 12 are non-through, and the curvature of the guide grooves 12 matches the movement trajectory of the lower end of the corrugated plate, and providing an air collecting pipe 409 that matches the ventilation holes 11, the material trough body 1 is kept in a sealed condition during the entire working process, which greatly reduces the phenomenon of dust spraying on site and reduces the labor intensity of on-site sanitation cleaning for operators.

[0031] It is understood from common technical knowledge that the present invention may be implemented by other embodiments that do not depart from its spirit or essential features. Therefore, the embodiments disclosed above are, in all respects, merely illustrative and not exclusive. All modifications within the scope of the present invention or equivalent to the scope of the present invention are intended to be encompassed by the present invention.

Claims

1. A vertical trough device for a pelletizing vertical furnace, characterized in that: It comprises a trough body (1), a material stacking member (2), a cooling water tank (3) and an air-cooling chain mechanism (4), wherein ventilation holes (11) are provided on both sides of the trough body (1), a guide groove (12) is provided in the trough body (1) below the ventilation holes (11), the material stacking member (2) is obliquely and detachably installed inside the trough body (1), the cooling water tank (3) is installed at the outer end of the trough body (1), the outer side of the trough body (1) is covered with a water circulation plate (5) connected to the cooling water tank (3), the air-cooling chain mechanism (4) is installed on the trough body (1), and is used to keep the pellets discharged uniformly and continuously, and keep them balanced with the feeding amount; The air-cooling chain mechanism (4) comprises a cylinder (401), a blower cover (402) and a material-diverting plate (403). A top pressure plate (404) is installed at the output end of the cylinder (401). A symmetrically arranged push rod (405) is detachably installed on the other side of the top pressure plate (404). The other end of the push rod (405) is slidably arranged on the side end of the trough body (1) through a mounting seat (406). A mounting frame (407) is fixedly connected to the middle of the push rod (405). The mounting frame ( 407), the upper end of the material stripping member is fixedly connected to a rack (408), one side of the air hood (402) is connected to the top pressure plate (404), and the other side of the air hood (402) is connected to the air collecting pipe (409), the material stripping member is rotatably arranged inside the material trough body (1), the upper two side ends of the material stripping member pass through the material trough body (1) and are coaxially fixedly connected to a gear (410), the gear (410) is meshed with the rack (408), and the lower end of the material stripping member is limitedly slidably arranged in the guide groove (12); The air collecting pipe (409) is kept in cooperation with the ventilation hole (11).

2. The vertical trough device for a pelletizing shaft furnace according to claim 1, characterized in that: The guide groove (12) is non-through, and the curvature of the guide groove (12) matches the motion trajectory of the lower end of the corrugated plate.

3. The vertical trough device for a pelletizing shaft furnace according to claim 1, characterized in that: The material stacking pieces (2) are uniformly distributed strip-shaped opening pieces, and the opening width matches the diameter of the pellets.

4. The vertical trough device for a pelletizing shaft furnace according to claim 1, characterized in that: The lower end of the material shifting plate (403) has no rigid contact with the end surface of the material encoding member (2) during the flipping and shifting process.

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