Dehydrator structure

Abstract

The utility model relates to a kind of blast furnace water slag filtering devices, especially a kind of dehydrator structure.It includes dehydrator shell, cylinder, slag water distributor, outer sieve plate, inner sieve plate, the scraper device is mounted on the axial length of the cylinder outer wall, and vibration motor is mounted on the receiving hopper on dehydrator shell;The inner wall of the slag water distributor is installed wear-resistant ceramic plate;And / or: the cylinder is equipped with reinforced wear-resistant protection plate;Compared with prior art, the adoption of scraper device can scrape off the continuously accumulated slag body;Vibration motor is installed on the receiving hopper, and timely play the role of preventing slag body bonding;The installed wear-resistant ceramic plate can reduce the wear of slag water distributor, and it is beneficial to reduce the probability of maintenance or replacement of slag water distributor;The installed reinforced wear-resistant protection plate can prolong the service life of cylinder;Overall it has the effect of reducing shutdown probability and improving work efficiency.

Description

Technical Field

[0001] This utility model relates to a blast furnace slag filtration device, and in particular to a dewatering device structure. Background Technology

[0002] The existing dewatering device structure has the following problems: First, during the filtration of blast furnace slag, the blast furnace injection device sprays the slag-water mixture into the cylinder. As the blast furnace slag accumulates during filtration, when the cylinder rotates to the lowest point of the dewatering device shell, slag tends to adhere to the bottom of the water tank, affecting the screening and filtration function of the blast furnace slag. Second, during cylinder rotation, the impact force of the blast furnace slag causes wear on the end plates, inner screen plates, and outer screen plates. The currently used inner and outer screen plate structures have poor wear resistance and short service life. Third, the slag-water distributor also suffers from severe wear and needs to be replaced promptly. Fourth, during material receiving, the unevenness of the filtered blast furnace slag in the receiving hopper can easily lead to a sudden accumulation of slag. Summary of the Invention

[0003] The purpose of this invention is to provide a dehydrator structure that solves the problems existing in the above-mentioned background art.

[0004] The present invention adopts the following technical solution:

[0005] Option 1:

[0006] A dewatering device structure includes a dewatering device shell, a cylinder, a slag-water distributor, an outer screen plate, and an inner screen plate. A slag scraper device is installed on the outer wall of the cylinder along its axial length. A vibrating motor is installed on the receiving hopper mounted on the dewatering device shell. A wear-resistant ceramic plate is installed on the inner wall of the slag-water distributor.

[0007] Compared with the prior art, the present invention, which adopts the above-mentioned technical solution one, has the following advantages: the use of a slag scraper device can scrape off the continuously accumulated slag; the installation of a vibrating motor on the receiving hopper can prevent the slag from sticking together; the installation of a wear-resistant ceramic plate can reduce the wear on the slag-water distributor, thus reducing the probability of repairing or replacing the slag-water distributor; overall, it has the effect of reducing the probability of downtime and improving work efficiency.

[0008] The present invention adopts the following preferred embodiment:

[0009] The receiving hopper has a conical cylindrical structure and is inclinedly installed on the dewatering device housing. The plane where the rotation center of the vibrating motor is located is parallel to the horizontal plane.

[0010] The dewatering unit housing is equipped with a sloping material receiving trough, and a conveyor belt is installed below the material receiving trough. The conveyor belt transports materials via idler rollers.

[0011] The outer frame of the outer screen plate is equipped with working screen bars.

[0012] The cross-section of the working screen bar is trapezoidal.

[0013] The dehydrator housing is equipped with a sweeping wheel structure, which is driven by a variable frequency motor. The rotation direction of the sweeping wheel structure is opposite to that of the cylinder.

[0014] A support plate is added to the inner sieve plate bracket, and the support plate has a triangular structure.

[0015] The inner sides of the left and right end plates of the cylinder are respectively equipped with a reinforcing rib plate, and a reinforcing wear-resistant protective plate is respectively installed on both sides of the reinforcing rib plate. The reinforcing wear-resistant protective plate is welded to the end plate through plug welding holes.

[0016] The middle plate of the cylinder is equipped with two reinforcing ribs on both sides, and two wear-resistant protective plates are installed on both sides of the reinforcing ribs. The wear-resistant protective plates are welded to the end plates through plug welding holes.

[0017] Option 2:

[0018] A dewatering device structure includes a dewatering device shell, a cylinder, a slag-water distributor, an outer screen plate, an inner screen plate, a slag scraper device mounted on the outer wall of the cylinder along its axial length, a vibrating motor mounted on the receiving hopper mounted on the dewatering device shell, a wear-resistant ceramic plate mounted on the inner wall of the slag-water distributor, and / or a reinforced wear-resistant protective plate mounted on the cylinder.

[0019] Compared with the prior art, the present invention, which adopts the above-mentioned technical solution two, features a slag scraper device that can scrape away the continuously accumulated slag; a vibrating motor installed on the receiving hopper can prevent slag from sticking together; the installed wear-resistant ceramic plate can reduce wear on the slag-water distributor, thus reducing the likelihood of repairing or replacing the slag-water distributor; and the installed reinforced wear-resistant protective plate can extend the service life of the cylinder. Overall, it reduces the likelihood of downtime and improves work efficiency. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of this utility model.

[0021] Figure 2 yes Figure 1 Enlarged view of Part I.

[0022] Figure 3 This is a schematic diagram of the end face of the cylinder (including the water slag distributor and the conveyor belt).

[0023] Figure 4 This is a schematic diagram of the outer sieve plate structure.

[0024] Figure 5 yes Figure 4 Enlarged view of AA section CC in the image.

[0025] Figure 6 This is a schematic diagram of the cleaning device installed on the casing (partially).

[0026] Figure 7 yes Figure 6 Side view.

[0027] Figure 8 This is a schematic diagram of the slag and water distributor at the water inlet.

[0028] Figure 9 This is the front view of the sludge and water distributor at the outlet.

[0029] Figure 10 This is a bottom view of the sludge and water distributor at the outlet.

[0030] Figure 11 This is a schematic diagram of the intermediate section slag and water distributor.

[0031] Figure 12 This is a schematic diagram of the end plate of the cylinder.

[0032] Figure 13 yes Figure 12 Enlarged cross-sectional view of DD in the image.

[0033] Figure 14 yes Figure 12 A schematic diagram of the B-direction structure.

[0034] Figure 15 yes Figure 14 Side view.

[0035] Figure 16 This is a structural diagram of the middle plate of the cylinder.

[0036] Figure 17 yes Figure 16 A schematic diagram of the EE structure.

[0037] Figure 18 yes Figure 11 Top view.

[0038] Figure 19 This is a simplified structural diagram of a slag and water distributor. Detailed Implementation

[0039] The present invention will be described in detail below with reference to the accompanying drawings and embodiments:

[0040] A dehydrator structure, see appendix. Figure 1 -Appendix Figure 19 The specific structure shown in the figure includes: 1. Dewatering unit shell; 2. Water tank; 3. Receiving hopper; 4. Vibrating motor; 5. Crossbeam; 6. Slag scraper device; 7. Cylinder; 8. Receiving trough; 9. Outer frame; 10. Support bar; 11. Working screen bar; 12. Variable frequency motor; 13. Scraping wheel cover; 14. Scraping wheel; 15. Slag-water distributor at the inlet end; 16. Sealing plate 17. Inlet; 18. Lifting plate; 19. Slag-water distributor at the outlet end; 20. Slag-water leakage hole 1. Distributor 21, sealing structure 22, inner screen plate bracket 23, support plate 24, end plate 25, reinforcing rib plate 1 26, upper section reinforced wear-resistant protective plate 27, plug weld hole 1 28, intermediate plate 29, reinforcing rib plate 20, reinforced wear-resistant ceramic plate 21, plug weld hole 2 32; conveyor belt 33, ceramic wear-resistant plate 34, slag leakage hole 2 35, roller structure 36, maintenance hole 37, hoisting plate 38, lower section reinforced wear-resistant sand protective plate 39. Example 1:

[0041] In this embodiment, see Appendix Figure 1 , 2 and appendix Figure 4-9 The specific structure shown includes a dewatering unit housing 1, a cylinder 7 placed inside the dewatering unit housing 1, and a scraper device 6 mounted on the outer wall of the cylinder 7 along its axial length. The cleaning brush in the scraper device 6 is equal to or slightly smaller than the axial length of the cylinder 7.

[0042] The receiving hopper 3 is installed on the shell 1 of the dehydrator. The receiving hopper has a conical structure. A vibration motor 4 is installed on the upper side of the receiving hopper 3. The vibration motor 4 is set perpendicular to the horizontal plane.

[0043] The outer frame 9 of the outer screen plate is equipped with support bars 10, and working screen bars 11 are mounted on the support bars 10. The support bars 10 and the working screen bars 11 are arranged in a crisscross pattern. The height of the working screen bars 11 is 7 mm, replacing the original 3-layer composite screen. The thickness of each layer of the original 3-layer screen is only 0.55 mm. The original outer screen plate weighed 50 kg, but now it weighs only 10 kg. It used to need to be replaced every 3 months, but now it only needs to be replaced every 12-24 months, resulting in a longer service life. In the original screen, only the first and second layers were effective, and the third layer was basically ineffective. The working screen bars 11 have a simple structure, are easy to manufacture, and have significantly enhanced wear resistance, extending their service life.

[0044] The cross-section of the working screen bar 11 is an isosceles trapezoidal structure, and the short side (lower base) of the isosceles trapezoidal structure is placed on the support bar 10.

[0045] The dehydrator housing 1 is provided with a sweeping wheel 14, and a sweeping wheel cover 13 is installed on the outside of the sweeping wheel 14. The sweeping wheel 14 is driven by a variable frequency motor 12, and the rotation direction of the sweeping wheel 14 is opposite to the rotation direction of the cylinder 7.

[0046] The slag-water distributor is composed of three sections: an inlet slag-water distributor 15, a middle section slag-water distributor 19, and an outlet slag-water distributor 21. The inlet slag-water distributor 15 is connected to the slag-water ditch, and the outlet end of the inlet slag-water distributor 15 is connected to the inlet end of the middle section slag-water distributor 21. A slag leakage hole 20 is provided on the bottom plate of the middle section slag-water distributor 21, and a maintenance hole 37 is provided on the upper plate of the middle section slag-water distributor 21 for easy access for maintenance when there is a large amount of slag accumulation.

[0047] The bottom plate of the intermediate section slag-water distributor 21 is connected to the inlet end of the outlet slag-water distributor 21, and the slag leakage hole 35 of the outlet slag-water distributor 21 is located on its bottom plane. The top of the inlet slag-water distributor 15 and the intermediate section slag-water distributor 19 are respectively equipped with a lifting plate 38, which is connected to the crossbeam 5. The lifting plate structure is 715 mm high; the spacing of the lifting plates 38 along the axial direction of the slag-water inlet distributor 15 is 1780 mm.

[0048] In the three-section structure of the slag-water distributor, each section has a perforated ceramic wear-resistant plate 34 installed on its inner wall, and each ceramic wear-resistant plate 34 has an installation hole structure. The installation of the ceramic wear-resistant plate 34 can reduce the wear on each section of the slag-water distributor, which helps to reduce the probability of repairing or replacing the slag-water distributor. If there is partial wear, only partial or partial replacement of the ceramic wear-resistant plate 34 is required.

[0049] The upper right side of the slag and water distributor 15 at the water inlet end has a sloping structure and is sealed with a sealing plate to prevent slag and water from overflowing due to the force of the impact, thus playing a role in maintaining pressure. Similarly, the leftmost end of the slag and water distributor 21 in the middle section also adopts a sealing structure 22, which also plays a role in preventing slag and water from overflowing due to the impact of the impact.

[0050] The outlet-end slag and water distributor 19 is provided with two slag leakage holes 35. The dimensions of the slag leakage holes 35 are: 420 mm wide and 1130 mm long. The longitudinal interval between the two slag leakage holes 35 is 440 mm. The two slag leakage holes 35 on the outlet-end slag and water distributor 19 are located in the same length direction and have the same structure and size. The upper sides of both sides of the outlet-end slag and water distributor 19 are equipped with ear plate structures, which are connected to the middle section slag and water distributor 21.

[0051] The inlet-end sludge-water distributor 21 is set at the same height as the intermediate-section sludge-water distributor 21, and the intermediate-section sludge-water distributor 21 is set at the same length as the outlet-end sludge-water distributor. (See example...) Figure 19 The structure shown.

[0052] The intermediate section slag and water distributor 21 is equipped with a sealing structure 22 and a lifting plate 38; the width of the leakage structure 35 of the intermediate section distributor 21 is 465 mm and the length is 620 mm; the maintenance hole of the upper flat plate of the intermediate section slag and water distributor 21 is 780 mm wide and 1000 mm long.

[0053] A triangular support plate 24 is added to the inner sieve plate bracket 23 for reinforcement; the inner sieve plate bracket 23 is modified to have four holes for bolt installation of the inner sieve plate.

[0054] The cylinder 7 ( Figure 12 The image only shows the left semi-circular cylindrical body 7. Generally, the cylindrical body 7 consists of two semi-circular structures. The inner surfaces of the end plates 25 at both ends (the left and right end plates, respectively) are fitted with arc-shaped reinforcing ribs 26. Upper and lower reinforcing wear-resistant protective plates 27 and 39 are respectively installed on both sides of the reinforcing ribs 26. The upper reinforcing wear-resistant protective plate 27 is connected to the end plate 25 through plug weld holes 28 on its surface. Figure 12 The specific structure shown in the figure has an upper reinforced wear-resistant protective plate 27 and a lower reinforced wear-resistant protective plate 39, which are respectively fan-shaped structures, and the plug welding holes 28 located on the same circumference are evenly distributed.

[0055] The cylinder 7 can be composed of two to four sections along its axial length. An intermediate plate 29 needs to be installed. Unlike the end plates 25 at both ends of the cylinder 7, a reinforcing rib plate 20 is installed on each side of the intermediate plate 29. The reinforcing rib plate 20 is a single piece. A reinforced wear-resistant protective plate 21 is installed on each side of the reinforcing rib plate 20. The reinforced wear-resistant protective plate 21 is welded to the intermediate plate 29 through a plug welding hole 22 provided on itself. The reinforced wear-resistant protective plates 21 on both sides of the intermediate plate 29 are arranged symmetrically. Example 2:

[0056] The structure of the vibratory motor installed above the receiving hopper in Example 1 differs from that in the attached diagram. Figure 3 In the specific structure shown in this embodiment, the dewatering device housing 1 is equipped with a receiving trough 8 with an inclined structure on the upper part via a support frame, and a conveyor belt 33 is installed below the receiving trough 8. The conveyor belt 33 is conveyed by a roller conveying structure.

[0057] During use, the fine slag filtered by the slag-water distributor 5 tends to adhere to the inner wall of the water tank 2 over time. As the cylinder 7 rotates continuously, a scraper device 6 mounted on the outer wall of the cylinder 7 scrapes away the accumulated slag in the water tank 2, effectively removing it, reducing downtime, and improving work efficiency. Similarly, during operation, slag may also adhere to the inner wall of the receiving hopper 3 after prolonged use, affecting further material feeding. A vibrating motor 4 installed on the outer wall of the receiving hopper 3 effectively and promptly prevents slag adhesion.

[0058] The products actually manufactured based on the contents described in the two embodiments above have the following advantages: long service life and wear resistance.

[0059] This utility model is not limited to those listed above. Any changes or equivalent substitutions made to benefit the protection scope of this utility model shall be deemed to be within the protection scope of this utility model.

Claims

1. A dewatering device structure, comprising a dewatering device shell, a cylinder, a sludge-water distributor, an outer screen plate, and an inner screen plate, characterized in that, The outer wall of the cylinder is equipped with a slag scraper along its axial length, and the receiving hopper on the dewatering shell is equipped with a vibrating motor; the inner wall of the slag-water distributor is fitted with a wear-resistant ceramic plate.

2. The dehydrator structure according to claim 1, characterized in that: The receiving hopper has a conical cylindrical structure and is inclinedly installed on the dewatering device housing. The plane where the rotation center of the vibrating motor is located is parallel to the horizontal plane.

3. The dehydrator structure according to claim 1, characterized in that: The dewatering unit housing is equipped with a sloping material receiving trough, and a conveyor belt is installed below the material receiving trough. The conveyor belt transports materials via idler rollers.

4. The dehydrator structure according to claim 1, characterized in that: The outer frame of the outer screen plate is equipped with working screen bars.

5. The dehydrator structure according to claim 4, characterized in that: The cross-section of the working screen bar is trapezoidal.

6. The dehydrator structure according to claim 1, characterized in that: The dehydrator housing is equipped with a sweeping wheel structure, which is driven by a variable frequency motor. The rotation direction of the sweeping wheel structure is opposite to that of the cylinder.

7. The dehydrator structure according to claim 1, characterized in that: A support plate is added to the inner sieve plate bracket, and the support plate has a triangular structure.

8. The dehydrator structure according to claim 1, characterized in that: The inner sides of the left and right end plates of the cylinder are respectively equipped with a reinforcing rib plate, and a reinforcing wear-resistant protective plate is respectively installed on both sides of the reinforcing rib plate. The reinforcing wear-resistant protective plate is welded to the end plate through plug welding holes.

9. The dehydrator structure according to claim 1, characterized in that: The middle plate of the cylinder is equipped with two reinforcing ribs on both sides, and two wear-resistant protective plates are installed on both sides of the reinforcing ribs. The wear-resistant protective plates are welded to the end plates through plug welding holes.

10. A dewatering device structure, comprising a dewatering device shell, a cylinder, a sludge-water distributor, an outer screen plate, and an inner screen plate, characterized in that, A slag scraper device is installed on the outer wall of the cylinder along its axial length, and a vibrating motor is installed on the receiving hopper mounted on the dewatering unit shell; a wear-resistant ceramic plate is installed on the inner wall of the slag-water distributor, and / or: a reinforced wear-resistant protective plate is installed on the cylinder.

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