Improved solid caustic soda feeding device

Abstract

The utility model discloses an improved solid alkali feeding device, which comprises a feeding bin, the feeding bin is mounted at the top of a sulfur belt through a mounting frame, the top of the feeding bin is fed through a discharging chute, and the improved solid alkali feeding device is characterized in that a discharging component is mounted at the lower end of the feeding bin and rotates to pull out solid alkali in the feeding bin; a material receiving box is arranged on the lower end face of the discharging assembly, pulled-out solid alkali is collected through the material receiving box and falls to the upper end face of the sulfur belt, a gap formed between the material stirring plate and a sealing tooth plate during rotation is adjusted to be small through arrangement of the material stirring plate along with increase or decrease of the height of the material stirring plate, and therefore the alkali adding amount is controlled; meanwhile, the sealing tooth plate abuts against the material stirring plate, so that the influence of sulfur on solid alkali in the bin body is reduced, and caking is reduced.

Description

Technical Field

[0001] This utility model relates to the technical field of sulfur-based acid production and sulfur melting equipment, specifically an improved solid alkali feeding device. Background Technology

[0002] In sulfuric acid production, solid alkali is typically added for neutralization during the melting process to reduce corrosion of the equipment. This step requires precise control of the amount of solid alkali added to maintain the stability of the acid-base balance in the sulfur melting tank.

[0003] Currently, most feeders use screw feeders for alkali addition. However, due to the extremely unstable acidity of sulfur, the amount of alkali added varies greatly. If a larger screw feeder is selected, the amount of alkali added will be too small. In this case, the amount of alkali added can only be controlled by frequency conversion to control the screw speed. However, if the frequency conversion is too low, the power output will be too small, the screw will not rotate, and the material cannot be fed. If the frequency conversion is too high, the amount of alkali added will be too large, which is not convenient for adjusting the amount of alkali added. Moreover, the bottom of the alkali feeder is in an open state for a long time, and it is in close contact with sulfur, which makes it very easy to clump. Utility Model Content

[0004] The purpose of this invention is to provide an improved solid alkali feeding device to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides an improved solid alkali feeding device, including a feeding bin, which is installed on the top of a sulfur conveyor belt via a mounting frame. The top of the feeding bin is fed through a discharge chute. The device is characterized in that: a discharge assembly is installed at the lower end of the feeding bin, which rotates to push out solid alkali from the feeding bin; a receiving box is provided on the lower end face of the discharge assembly, and the pushed-out solid alkali is collected through the receiving box and falls onto the upper end face of the sulfur conveyor belt.

[0006] The feeding bin includes a bin body, and sealing teeth plates are symmetrically fixedly connected to both sides of the lower opening of the bin body. The two sets of sealing teeth plates are arranged parallel to the feeding assembly.

[0007] The feeding assembly includes an outer roller and an adjusting cylinder. The outer roller includes a mounting cylinder. Both ends of the mounting cylinder are rotatably connected to the lower opening of the hopper. A driving mechanism is installed at one end of the mounting cylinder. Several sets of material-pushing plates are circumferentially spaced on the outer wall of the mounting cylinder. During the rotation of the end of the mounting cylinder away from the mounting cylinder, the material-pushing plates are always in contact with the sealing tooth plate and push the sealing tooth plate to deform.

[0008] As a further preferred embodiment, the mounting cylinder has an internal mounting cavity, and the outer wall of the mounting cylinder has several sets of limiting grooves spaced apart circumferentially. One end of the material feeding plate passes through the limiting groove and extends into the mounting cavity.

[0009] As a further preferred embodiment, the adjusting cylinder includes an adjusting cylinder body connected to the mounting cavity, an adjusting shaft is fixedly connected to one end of the adjusting cylinder body, and a number of slope adjusting components are fixedly connected to the outer wall of the adjusting cylinder body at intervals around the periphery.

[0010] As a further preferred embodiment, the slope adjustment component is wrapped around and fixedly connected to the slope panel on the outer wall of the adjustment cylinder, and several sets of adjustment grooves are spaced apart on the same side inclined surface of the slope panel.

[0011] As a further preferred embodiment, a limiting groove is provided at the connection between the inclined surface of the slope panel and the adjusting cylinder, and the material-pulling plate extends through the limiting groove into the limiting groove.

[0012] As a further preferred embodiment, the sealing tooth plate material is an elastic material with an externally coated acid and alkali resistant coating.

[0013] Through the above technical solution, the improved solid alkali feeding device provided by this utility model has the following advantages:

[0014] This utility model sets up a feeding component and a driving mechanism to drive the installation cylinder to rotate. When the installation cylinder rotates, the feeding plate set on the outer wall of the installation cylinder pushes the sealing tooth plate to deform. The deformed sealing tooth plate and the feeding plate that rotates out of the inner cavity of the silo create a gap. The solid alkali in the silo enters the receiving box from the gap for collection and is then conveyed to the upper end of the sulfur belt through the receiving box to achieve feeding.

[0015] Simultaneously, rotating the adjusting shaft causes the adjusting cylinder to rotate. The sloped panel, which follows the rotation of the adjusting cylinder, moves the material-dispensing plate from the limiting groove to the adjusting groove along the inclined surface of the sloped panel at one end of the installation cavity. By controlling the rotation angle of the adjusting cylinder, the lower end of the material-dispensing plate can be moved to different positions on the adjusting groove, thereby adjusting the height of the material-dispensing plate extending out of the limiting groove. As the height of the material-dispensing plate increases, the gap formed between the material-dispensing plate and the sealing tooth plate gradually decreases, thereby controlling the amount of alkali added. At the same time, the contact between the sealing tooth plate and the material-dispensing plate reduces the impact of sulfur on the solid alkali in the silo and reduces agglomeration. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of an improved solid alkali feeding device according to the present invention.

[0017] Figure 2 This is a cross-sectional structural diagram of the feeding hopper of this utility model.

[0018] Figure 3 This is a schematic diagram of the feeding component structure of this utility model.

[0019] Figure 4 This is a cross-sectional view of the outer roller of this utility model.

[0020] Figure 5 This is a schematic diagram of the adjusting cylinder structure of this utility model.

[0021] Figure 6 For the present utility model Figure 5 Enlarged structural diagram at point A.

[0022] In the diagram: 1. Feeding bin, 11. Bin body, 12. Sealing tooth plate, 2. Discharge assembly, 21. Outer roller, 211. Mounting cylinder, 212. Material guide plate, 213. Limiting groove, 214. Mounting cavity, 22. Adjusting cylinder, 221. Slope adjustment assembly, 2211. Slope panel, 2212. Limiting groove, 2213. Adjusting groove, 222. Adjusting cylinder, 223. Adjusting shaft, 3. Receiving box, 4. Mounting frame. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] The present invention will be further described in detail with reference to the accompanying drawings.

[0025] Please see Figure 1 - Figure 6 The present invention provides an improved solid alkali feeding device, comprising a feeding bin 1, a feeding assembly 2, a receiving box 3, and a mounting frame 4.

[0026] Please see Figure 1 and Figure 2 The feeding bin 1 includes a bin body 11. Sealing teeth 12 are fixedly connected to the two sides of the lower end of the bin body 11 that are parallel to the feeding assembly 2. The outer wall of the bin body 11 is fixed to the mounting frame 4 by welding or riveting. The feeding assembly 2 is rotatably connected to the lower end of the bin body 11. The feeding assembly 2 rotates to push out the solid alkali in the bin body 11. A receiving box 3 is set directly below the feeding assembly 2. The receiving box 3 is fixedly connected to the inner side of the mounting frame 4 on both sides. The solid alkali enters the bin body 11 through the feeding chute (not shown in the figure), and after being pushed into the receiving box 3 by the feeding assembly 2, it is collected and then put onto the sulfur conveyor belt (not shown in the figure).

[0027] It should be noted that the receiving box 3 is located at the top of the sulfur conveyor belt. Solid alkali is fed onto the sulfur conveyor belt and comes into contact with the sulfur on the belt. Since the sulfur conveyor belt is in a conveying state, the solid alkali is continuously and evenly fed.

[0028] It should be added that the mounting frame 4 supports and fixes the hopper 11 and the receiving box 3, in addition to Figure 1The bracket shown can also be a suspension bracket, support bracket, mounting platform, or other shapes or structures.

[0029] It should also be noted that the two sets of sealing teeth 12 are arranged in the same direction.

[0030] Please see Figures 3 to 5 The feeding assembly 2 includes an outer roller 21 rotatably connected to the material inlet at the lower end of the hopper 11. An adjusting cylinder 22 is rotatably connected inside the outer roller 21. The outer roller 21 includes a mounting cylinder 211. A driving mechanism is fixedly connected to one end of the mounting cylinder 211. Several sets of limiting grooves 213 are spaced apart on the outer wall of the mounting cylinder 211. An mounting cavity 214 is opened inside the mounting cylinder 211. A material-pulling plate 212 is slidably connected inside the limiting grooves 213. One end of the material-pulling plate 212 passes through the limiting grooves 213 and extends into the mounting cavity 214. The adjusting cylinder 22 includes an adjusting cylinder 222. Several sets of slope adjusting components 221 are spaced apart on the outer wall of the adjusting cylinder 222. An adjusting shaft 223 is fixedly connected to one end of the adjusting cylinder 222. The adjusting shaft 223 extends through the mounting cylinder 211 away from the adjusting cylinder 222.

[0031] It should be noted that the number of slope adjustment components 221 is the same as that of the material-pulling plate 212, and the slope adjustment components 221 support one end of the material-pulling plate 212 that extends into the mounting cavity 214.

[0032] It should also be noted that the drive mechanism can be a drive motor installed on the side wall of the mounting frame 4, or a drive wheel can be set at one end of the mounting cylinder 211 and driven by the belt pressure pulley of the sulfur belt via a V-belt.

[0033] It should be added that a limit structure is provided at the outer end of the adjusting shaft 223, which can lock the position of the adjusting shaft 223.

[0034] Please see Figure 6 The slope adjustment component 221 includes a slope panel 2211 fixedly connected to the outer wall of the adjustment cylinder 222. Several sets of slope panels 2211 are provided with slopes of the same inclination angle on the same side. Several sets of adjustment grooves 2213 are spaced apart on the slopes. A limit groove 2212 is provided at the connection between the slope and the adjustment cylinder 222.

[0035] It should be noted that the bottom of the limiting groove 2212 and the adjusting groove 2213 are arc-shaped and fit against the lower end of the material feeding plate 212. The upper end of the material feeding plate 212 is also arc-shaped to reduce the resistance between the material feeding plate 12 and the sealing tooth plate 12 during rotation.

[0036] It should also be noted that when the lower end of the material feeding plate 212 is located in the adjustment groove 2213 at the highest position, the rotation diameter of the material feeding plate 212 does not exceed the width of the lower port of the chamber body 11. When the lower end of the material feeding plate 212 is located in the limiting groove 2212, the rotation diameter of the material feeding plate 212 is greater than the distance between the two sets of sealing teeth 12. That is, when the material feeding plate 212 rotates, the outer end is always in contact with the sealing teeth 12 and pushes the sealing teeth 12 to deform.

[0037] It should also be noted that the two sets of sealing teeth 12 have a crescent-shaped cross section, and the material feeding plate 212 always abuts against the outer side of the sealing teeth 12 when it enters and leaves the interior of the chamber 11.

[0038] It is understandable that when the adjusting shaft 223 is rotated, the adjusting cylinder 222 is rotated. The slope of the slope panel 2211 on the outer wall of the adjusting cylinder 222 pushes the lower end of the material-pulling plate 212 from the limiting groove 2212 to the adjusting groove 2213, thereby increasing the height of the material-pulling plate 212 extending out of the limiting groove 213. As the height of the material-pulling plate 212 increases, the gap formed by pushing the sealing tooth plate 12 when rotating decreases. Similarly, when the adjusting shaft 223 rotates in the opposite direction, the gap increases, thereby realizing the adjustment of the amount of solid alkali added.

[0039] Principle: Solid alkali is fed into the silo 11 via a feeding chute. Rotating the adjusting shaft 223 causes the adjusting cylinder 222 to rotate the slope panel 2211, thereby moving the lower end of the feeding plate 212 along the slope of the slope panel 2211 and adjusting the rotation radius of the feeding plate 212. After adjustment, the limiting mechanism limits the adjusting shaft 223, and the drive mechanism drives the mounting cylinder 211 to rotate. When the mounting cylinder 211 rotates, it drives the feeding plate 212 to push the sealing teeth. When the plate 12 deforms and the feeding plate 212 enters the silo 11, the sealing tooth plate 12 deforms towards the side closer to the feeding plate 212. The deformed sealing tooth plate 12 cooperates with the feeding plate 212 to prevent solid alkali from spilling. When the feeding plate 212 leaves the silo 11, the sealing tooth plate 12 deforms away from the feeding plate 212. A gap is formed between the deformed sealing tooth plate 12 and the feeding plate 212, and the solid alkali leaks out from the gap, is collected by the receiving box 3, and is conveyed to the upper end of the sulfur belt.

[0040] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An improved solid alkali feeding device, comprising a feeding bin (1), the feeding bin (1) being mounted on top of a sulfur conveyor belt via a mounting frame (4), and the feeding bin (1) receiving feed through a discharge chute, characterized in that: The feeding bin (1) is equipped with a feeding assembly (2) at the lower end. The feeding assembly (2) rotates to push out the solid alkali in the feeding bin (1). The feeding assembly (2) is provided with a receiving box (3) at the lower end. The pushed-out solid alkali is collected by the receiving box (3) and falls onto the upper end of the sulfur belt. The feeding bin (1) includes a bin body (11), and sealing teeth (12) are fixedly connected to both sides of the lower opening of the bin body (11). The two sets of sealing teeth (12) are arranged parallel to the feeding assembly (2). The feeding assembly (2) includes an outer roller (21) and an adjusting cylinder (22). The outer roller (21) includes a mounting cylinder (211). Both ends of the mounting cylinder (211) are rotatably connected to the lower opening of the bin (11). A driving mechanism is installed at one end of the mounting cylinder (211). Several sets of material-pushing plates (212) are arranged circumferentially on the outer wall of the mounting cylinder (211). During the rotation of the end of the material-pushing plate (212) away from the mounting cylinder (211), it always contacts the sealing tooth plate (12) and pushes the sealing tooth plate (12) to deform.

2. The improved solid alkali feeding device according to claim 1, characterized in that: The mounting cylinder (211) has an mounting cavity (214) inside. The outer wall of the mounting cylinder (211) is provided with several sets of limiting grooves (213) spaced apart around the periphery. One end of the material feeding plate (212) passes through the limiting groove (213) and extends into the mounting cavity (214).

3. The improved solid alkali feeding device according to claim 2, characterized in that: The adjusting cylinder (22) includes an adjusting cylinder body (222) rotatably connected in the mounting cavity (214), an adjusting shaft (223) is fixedly connected to one end of the adjusting cylinder body (222), and a number of slope adjusting components (221) are fixedly connected to the outer wall of the adjusting cylinder body (222) at intervals.

4. The improved solid alkali feeding device according to claim 3, characterized in that: The slope adjustment component (221) wraps around and is fixedly connected to the slope panel (2211) on the outer wall of the adjustment cylinder (222). Several sets of adjustment grooves (2213) are spaced apart on the same side inclined surface of the slope panel (2211).

5. The improved solid alkali feeding device according to claim 4, characterized in that: A limiting groove (2212) is provided at the connection between the inclined surface of the slope panel (2211) and the adjusting cylinder (222), and the material pushing plate (212) extends into the limiting groove (2212) through the limiting slide groove (213).

6. The improved solid alkali feeding device according to claim 1, characterized in that: The sealing tooth plate (12) is made of an elastic material with an external acid and alkali resistant coating.

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