Unpowered dust removal system for potassium sulfate bulk material belt

Abstract

The utility model discloses an unpowered dust removal system for a potassium sulfate bulk material belt, and relates to the technical field of dust removal of potassium sulfate bulk material transportation equipment. Comprising a scattering fifth belt, a dry third belt, a scattering seventh belt, a manufacturing first belt, a scattering fifth-scattering seventh / manufacturing first articulated chute, a scattering fifth material guide groove, a scattering fifth second-stage sealing cover, a dry third material guide groove, a dry third second-stage sealing cover, a dry third-scattering seventh articulated chute, a scattering seventh tail roller sealing cover, a scattering seventh second-stage sealing cover, a scattering seventh material guide groove, a scattering seventh first-stage air return pipe, a scattering seventh second-stage air return pipe and a sealing partition. Aiming at the problems that the working environment in the potassium sulfate bulk material belt corridor is severe and the dust concentration severely exceeds the standard, an optimal scheme is formulated and implemented through experimental research by utilizing an unpowered dust removal technology, and the problem of dust raising in the bulk material belt corridor is fundamentally solved.

Description

Technical Field

[0001] The utility model relates to the technical field of dust removal for potassium sulfate bulk material transportation equipment, in particular to an unpowered dust removal system for a potassium sulfate bulk material belt. Background Art

[0002] During the production process, the powder in the potassium sulfate bulk area needs to be transported and transferred after drying. A large amount of potassium sulfate dust is generated in several production links and the connection between these links. The dust concentration in the bulk belt corridor, transfer station, and bulk warehouse is seriously exceeded. Bag dust collectors are added to the potassium sulfate finished powder area, but the actual operation on site shows that the dust removal effect is not improved and is not ideal, which cannot meet the requirements of clean production.

[0003] There are several main sources of powder accumulation in the belt corridor: 1. Leakage from the belt and the material chute; 2. When the return belt of the conveyor belt runs on the top of the bulk bin, a large amount of dust is attached, and when it contacts the roller, dust is generated and then settles and accumulates; 3. High-concentration dust diffused from the bulk bin gradually settles and accumulates during the diffusion process. The bulk materials accumulated in the belt corridor need to be cleaned up almost every month, which not only increases the workload of on-site operators but also increases the risk of occupational health of the operators themselves. Summary of the invention

[0004] In order to solve the above technical problems, the utility model provides a non-powered dust removal system with reasonable layout and good dust removal effect, so as to solve the above technical problems.

[0005] To achieve the above purpose, the utility model provides the following solutions:

[0006] The utility model provides an unpowered dust removal system for a potassium sulfate bulk material belt, comprising a five-scattering belt, a three-drying belt, a seven-scattering belt, a one-making belt, a five-scattering-seven-scattering / making-one slide pipe, a five-scattering guide trough, a five-scattering secondary sealing cover, a three-drying guide trough, a three-drying secondary sealing cover, a three-drying-seven-scattering slide pipe, a seven-scattering tail roller sealing cover, a seven-scattering secondary sealing cover, a seven-scattering guide trough, a seven-scattering primary return air duct, a seven-scattering secondary return air duct and a sealing partition;

[0007] The five-scatter belt and the three-dry belt are arranged in parallel, and the discharge ends of the five-scatter belt and the three-dry belt are both located above the discharge end of the seven-scatter belt;

[0008] The making belt is arranged on one side of the spreading belt;

[0009] The scatter-5-scatter-7 / make-1 slide pipe is arranged between the scatter-7 belt, the scatter-5 belt and the make-1 belt;

[0010] A dry three-scatter seven slide pipe is provided between the dry three belt and the scattered seven belt;

[0011] The two sides of the scattered belt are provided with the scattered secondary sealing cover, and the scattered material guide trough is provided above the scattered belt;

[0012] The two sides of the dry three belt are provided with the dry three secondary sealing cover, and the dry three material guide trough is provided above the dry three belt;

[0013] The discharging end of the said scattered seven belt is provided with the said scattered seven tail roller sealing cover;

[0014] The two sides of the scattered belt are provided with the scattered material secondary sealing cover; the upper part of the scattered material belt is provided with the scattered material guide trough.

[0015] Optionally, a ladder and a platform are provided on the scattered seven belts.

[0016] Optionally, at least one primary air return duct and at least one secondary air return duct are provided on the material guide trough above the material conveyor belt.

[0017] Optionally, at least one observation door is provided on the scattered material guide trough above the scattered material belt.

[0018] Optionally, the bulk conveyor belt is provided with a plurality of sealing partitions at the outlet of the bulk material storage.

[0019] Optionally, fire doors are provided between the sealed partitions and on the side of the sealed partition facing the bulk material storage outlet.

[0020] Optionally, the scattered five-level second-level sealing cover, the dry three-level second-level sealing cover and the scattered seven-level second-level sealing cover all include a profile frame, an upper door panel, a top sealing plate, a lower sealing plate and a visible window; the top sealing plate is arranged on the top of the profile frame, the upper door panel and the lower sealing plate are both arranged between the profile frames, and the upper door panel is located above the lower sealing plate, and the visible window is arranged on the upper door panel.

[0021] Optionally, there is a first cleaner at the return tail of the scattered seven belts.

[0022] Optionally, a second cleaner is provided on the return section of the loose belt.

[0023] Compared with the prior art, the utility model has achieved the following technical effects:

[0024] The utility model discloses an unpowered dust removal system for potassium sulfate bulk belt, in which a set of buffer beds are installed at the corresponding positions of the dry three / scattered five belt dropping points at the tail of the scattered seven belt conveyor, which effectively improves the impact; an automatic deviation correction device is installed at the tail of the scattered seven belt conveyor to prevent the belt from deviating and scattering materials; three sealed partitions are arranged at the outlet of the bulk material warehouse of the scattered seven belt conveyor to prevent dust from escaping from the bulk material warehouse, thus reducing the dust concentration between the bulk material warehouse and the belt corridor; six fireproof doors are provided to facilitate the passage of personnel and maintenance equipment; double sealing is used between the door and the sealed partition to prevent dust from escaping. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0026] Figure 1 It is the positive triaxial measurement of the utility model.

[0027] Figure 2 It is a side view of the loose five-belt of the utility model.

[0028] Figure 3 It is a side view of the scattered seven belt of the utility model.

[0029] Figure 4 It is a positive triaxial measurement of the secondary sealing cover of the utility model.

[0030] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0031] 1. Scattered five-scattered seven / made one slide pipe; 2. Scattered five material guide chute; 3. Scattered five second-level sealing cover; 4. Dry three material guide chute; 5. Dry three second-level sealing cover; 6. Dry three-Scattered seven slide pipe; 7. Scattered seven tail roller sealing cover; 8. Scattered seven second-level sealing cover; 9. Scattered seven material guide chute; 10. Ladder and platform; 11. Scattered seven first-level return air duct; 12. Scattered seven second-level return air duct; 13. Sealed partition; 14. Observation door; 15. First sweeper; 16. Second sweeper; 17. Buffer bed; 18. Profile frame; 19. Upper door panel; 20. Top sealing plate; 21. Lower sealing plate; 22. Visual window; 23. Scattered five belt; 24. Dry three belt; 25. Scattered seven belt; 26. Made one belt. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0033] The present embodiment provides an unpowered dust removal system for a potassium sulfate bulk belt. In view of the problems of poor working environment and seriously excessive dust concentration in the potassium sulfate bulk belt corridor, the unpowered dust removal technology is utilized, and the best solution is formulated and implemented through experimental research, thereby fundamentally solving the problem of dust in the bulk belt corridor.

[0034] The following is a detailed description with reference to the accompanying drawings. Figure 1 The utility model uses an unpowered dust removal device for the potassium sulfate bulk belt, wherein the material is discharged from the dry three belts 24 and the scattered five belts 23 to the scattered seven belts 25 and finally transported to the bulk material warehouse. In addition, the scattered five belts 23 can distribute the material to the make-one belt 26 through the scattered five-scattered seven / make-one chute 1, the scattered five material guide trough 2 is inside the scattered five second-level sealing cover 3, the dry three material guide trough 4 is inside the dry three second-level sealing cover 5, the scattered seven tail roller sealing cover 7 and the scattered seven second-level sealing cover 8 can prevent the material from piling up at the tail, the scattered seven first-level return air duct 11 and the scattered seven second-level return air duct 12 are used for internal and external ventilation, the scattered five material guide trough 2 and the dry three material guide trough 4 only have the upper material guide trough, and the scattered seven material guide trough 9 adopts the form of completely "wrapping" the belt at the upper and lower parts, and the sealed partition 13 adopts three seals to block dust. After the triple sealed partition is made, a Class C fire door is installed. Figure 2 The cleaner 15 is installed at the return tail of the scattered belt 25, and the cleaner 16 is installed at the return part of the scattered belt 25. Figure 3 The buffer bed 17 is arranged at the belt drop point to reduce the belt deformation caused by the falling material. Figure 4 The profile frame 18, the upper door panel 19, the top sealing plate 20, the lower sealing plate 21 and the visual window 22 together form a secondary sealing cover.

[0035] The scattered five material guide trough 2, the dry three material guide trough 4, and the scattered seven material guide trough 9 have a thickness of not less than 4mm, a single section length of the material guide trough of 1-2 meters, and staggered semi-damping curtains are arranged inside. At the same time, full dust suppression curtains are installed at the exit and the rear of the trunk. Double sealing skirts are required to be sealed on both sides. The contact surface width of the sealing skirt and the belt shall not be less than 50mm, and the material is flame retardant and antistatic material.

[0036] The drum sealing cover 7 at the tail of the scattered seven fully seals the end of the material guide chute, and is equipped with multiple adjustable baffles to completely seal the tail of the material guide chute in a multiple sealing manner.

[0037] The observation door 14 is installed on both sides of the material guide trough, has high sealing performance, can effectively control the dust spillage, and is flexible to open.

[0038] The buffer bed 17 is arranged at the belt dropping point to reduce the deformation of the belt caused by the falling material and to prevent dust and material from overflowing from the deformed part. The surface material of the buffer bed 17 has a small friction coefficient, good wear resistance, high elasticity and strong impact energy absorption. It is designed as a steel structure, and the two ends of the contact surface of the internal buffer strip are arc-shaped.

[0039] The sealed partition 13 uses three seals to block dust. After making the triple sealed partition, a Class C fire door is installed, which is 210mm high and 100mm wide.

[0040] The scattered five-level second-level sealing cover 3, the dry three-level second-level sealing cover 5, and the scattered seven-level second-level sealing cover 8 are assembled with aluminum profiles and Q235, black European standard 4040+4080, wall thickness T1.8mm profiles, connected with bolts + elastic fasteners, the upper part is a double-opening visible door panel, each door panel has 3 sets of right-angle door stops on the upper and lower sides, the visible window is T3.0mm white transparent PC board, the lower part is a detachable door panel, the door panel is electrostatically sprayed, the total thickness of the paint film is ≥140um, the spray color is light gray, color number B03, the sealing cover components are delivered and assembled on site with connectors, and the length of each sealing cover is 1.5 meters.

[0041] The surfaces of the scattered five material guide trough 2, the dry three material guide trough 4, the scattered seven material guide trough 9, the scattered five-scattered seven / made one slide pipe 1, and the dry three-scattered seven slide pipe 6 are electrostatically sprayed, with a total paint film thickness of ≥140μm, and the spray color is light gray, color number B03.

[0042] The material is discharged to the scattered belt 7 25 through the dry belt 3 24 and the scattered belt 5 23 and finally transported to the bulk material warehouse. In addition, the scattered belt 5 23 distributes the material to the made belt 1 26 and the scattered belt 7 25 through the chute.

[0043] When the material is unloaded into the bulk material warehouse through the scattered belt 25, a large amount of dust is generated due to the height difference between the scattered belt 25 and the bulk material warehouse, and the high-concentration dust runs from the silo hole to the tail of the scattered belt 25 along the scattered belt 25 at a speed of 1.96m / s. The installation of the sealed partition 13 can play a good protective role, resulting in reduced dust diffusion in the scattered belt 25 corridor. It is found that the total suspended particulate matter in the air refers to the particles with an aerodynamic equivalent diameter of ≤100μm (0.1mm) suspended in the air. Through powder screening, it is determined that the particle size of 96.23% of the potassium sulfate bulk is close to 0.1mm. Potassium sulfate bulk is very easy to form dust during the belt transportation due to various factors such as height difference. The static accumulation angle measurement experiment of potassium sulfate bulk material shows that potassium sulfate powder has poor fluidity and is very easy to accumulate and block. The inclination angle of the material discharge chute of Scattered Five-Scattered Seven / Made One Chute 1 and Dry Three-Scattered Seven Chute 6 is greater than 43.8°, which can ensure smooth material discharge without causing blockage. The actual measured angle is between 50° and 60°, avoiding the occurrence of blockage.

[0044] Static electricity will be generated during the operation of the belt, causing a large amount of dust to adhere to the return conveyor belt. The first cleaner 15 and the second cleaner 16 are used to clean the bulk material. Here, the optimization direction is to install an intelligent ion air knife cleaner, which can intelligently adjust the gas volume and ion generation according to the dust concentration. The lower part of the scattering five-scattering seven / making one chute 1 and the dry three-scattering seven chute 6 is set in a curved shape, allowing the material to slide on the belt at a speed close to the running speed of the belt without causing the material to scatter and spray powder, reducing the dust generated by the impact of the material flow on the belt and the relative movement with the belt. At the same time, the material falls into the middle of the belt, eliminating the deviation problem caused by the deviation of the material.

[0045] The utility model discloses an unpowered dust removal device for potassium sulfate bulk belt, and the equipment structure can meet the requirements of safety and continuous operation, and meet the functions under all working conditions without excessive stress, vibration, corrosion, aging and other operating problems; the parts have good interchangeability and can be relatively conveniently disassembled, replaced and repaired, and all heavy parts are easy to lift or carry during installation and maintenance; during unloading, the material flows stably and continuously in a bundle in the chute to suppress the generation of dust, and the chute not only controls the flow speed and flow form of the material, but also avoids the accumulation and hardening of the material, so that the material flows along the chute to form a bundle, which greatly reduces the diffusion of fine particles into the air, and at the same time controls the flow speed of the material within a certain range, and also reduces the introduction of induced wind; the five-belt scattering enters the seven-belt scattering and the one-belt scattering controlled by a valve, and can be switched freely; the equipment runs smoothly, and there is no material blockage, the on-site environment is greatly improved, and the equipment meets the requirements of dust suppression and dust removal; the dust concentration is greatly reduced, and the working environment is greatly improved; it is ensured that there is no material blockage in the chute, and the work intensity of on-site staff is effectively reduced; the service life of the equipment is greatly improved, and the maintenance workload of the transfer station is effectively reduced.

[0046] It should be noted that, for those skilled in the art, it is obvious that the present invention is not limited to the details of the above exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or basic features of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive, and the scope of the present invention is defined by the appended claims rather than the above description, so it is intended to include all changes within the meaning and scope of the equivalent elements of the claims in the present invention, and any figure mark in the claims should not be regarded as limiting the claims involved.

[0047] This specification uses specific examples to illustrate the principles and implementation methods of the utility model. The above examples are only used to help understand the method and core idea of ​​the utility model. At the same time, for those skilled in the art, according to the idea of ​​the utility model, there will be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as limiting the utility model.

Claims

1. A non-powered dust removal system for a potassium sulfate bulk belt, characterized in that: Including scattered five belts, dry three belts, scattered seven belts, make one belt, scattered five-scattered seven / make one slide pipe, scattered five material guide chute, scattered five secondary sealing cover, dry three material guide chute, dry three secondary sealing cover, dry three-scattered seven slide pipe, scattered seven tail roller sealing cover, scattered seven secondary sealing cover, scattered seven material guide chute, scattered seven first return air duct, scattered seven second return air duct and sealed partition; The five-scatter belt and the three-dry belt are arranged in parallel, and the discharge ends of the five-scatter belt and the three-dry belt are both located above the discharge end of the seven-scatter belt; The making belt is arranged on one side of the spreading belt; The scatter-5-scatter-7 / make-1 slide pipe is arranged between the scatter-7 belt, the scatter-5 belt and the make-1 belt; A dry three-scatter seven slide pipe is provided between the dry three belt and the scattered seven belt; The two sides of the scattered belt are provided with the scattered secondary sealing cover, and the scattered material guide trough is provided above the scattered belt; The two sides of the dry three belt are provided with the dry three secondary sealing cover, and the dry three material guide trough is provided above the dry three belt; The discharging end of the said scattered seven belt is provided with the said scattered seven tail roller sealing cover; The two sides of the scattered belt are provided with the scattered material secondary sealing cover; the upper part of the scattered material belt is provided with the scattered material guide trough.

2. The unpowered dust removal system for potassium sulfate bulk belt according to claim 1 is characterized in that: A ladder and a platform are arranged on the scattered belt.

3. The unpowered dust removal system for potassium sulfate bulk belt according to claim 1 is characterized in that: At least one primary air return duct and at least one secondary air return duct are arranged on the material guide trough above the material belt.

4. The unpowered dust removal system for potassium sulfate bulk belt according to claim 1 is characterized in that: At least one observation door is arranged on the scattered material guide trough above the scattered material belt.

5. The unpowered dust removal system for potassium sulfate bulk belt according to claim 1 is characterized in that: The bulk material storage outlet is provided with a plurality of sealing partitions on the bulk material belt.

6. The unpowered dust removal system for potassium sulfate bulk belt according to claim 5, characterized in that: Fire doors are arranged between the sealed partitions and on the side of the sealed partition facing the bulk material warehouse outlet.

7. The unpowered dust removal system for potassium sulfate bulk belt according to claim 1 is characterized in that: The scattered five-level second-level sealing cover, the dry three-level second-level sealing cover and the scattered seven-level second-level sealing cover all include a profile frame, an upper door panel, a top sealing plate, a lower sealing plate and a visual window; the top sealing plate is arranged on the top of the profile frame, the upper door panel and the lower sealing plate are both arranged between the profile frames, and the upper door panel is located above the lower sealing plate, and the visual window is arranged on the upper door panel.

8. The unpowered dust removal system for potassium sulfate bulk belt according to claim 1, characterized in that: The return tail of the scattered seven belt is provided with a first cleaner.

9. The unpowered dust removal system for potassium sulfate bulk belt according to claim 1, characterized in that: The return portion of the scattered belt is provided with a second cleaner.

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