WO2023241266A1

WO2023241266A1 - Split-type modular slag flushing apparatus

Info

Publication number: WO2023241266A1
Application number: PCT/CN2023/092888
Authority: WO
Inventors: 陈爱民; 吴学荣
Original assignee: 江苏新宏大集团有限公司
Priority date: 2022-06-14
Filing date: 2023-05-09
Publication date: 2023-12-21
Also published as: CN114887373A

Abstract

Disclosed in the present invention is a split-type modular slag flushing apparatus, comprising a main pipe, branch pipes, fine branch pipe assemblies, a U-shaped hook, a walkway platform, main pipe supports, and supporting legs. A liquid inlet is formed on the main pipe; the upper ends of the branch pipes are communicated with the main pipe, and the middle parts of the branch pipes are rubber hoses; the rubber hoses are communicated with the fine branch pipe assemblies; each fine branch pipe assembly comprises a fine branch pipe, a transverse pipe, and multiple-discharge nozzles; the fine branch pipe assemblies are fixed by means of the U-shaped hook fixed below the walkway platform; the walkway platform is connected to the supporting legs; the main pipe support supports the main pipe. The apparatus of the present invention has a large operation space and a friendly operating environment, the pipeline resistance is greatly reduced, there is no need to manually adjust and turn the angles of the branch pipes and the nozzles, the water outlet amount of the branch pipes and the nozzles is relatively uniform, the multiple fine branch pipe assemblies are designed in a split and modular mode, both the universality and the interchangeability of parts are high, the overall number of vulnerable parts is greatly reduced, the failure rate is reduced, and the operation rate is increased.

Description

A split modular slag flushing device

Technical field

The invention relates to the technical field of filter cloth regeneration, and in particular to a split modular slag flushing device.

Background technique

In order to obtain the best filtration effect, many solid-liquid separation equipment such as rotary disk vacuum filters, rubber belt filters, drum true filters, vertical disk vacuum filters, etc. often use slag flushing devices to regenerate the filter cloth. Most of the media used in slag washing devices are water or dilute acid (such as sulfuric acid, hydrochloric acid, nitric acid, etc.). According to different flushing effect requirements, two or more rows of nozzles are often used for slag flushing water, and the spacing between each row of nozzles is also different, usually 100 to 200mm. When using the front and rear rows of nozzles, their functions are different. The angle between the water outlet line of the front row nozzles and the slag flushing plane is slightly smaller. It is mainly used to remove large solid particles, debris, etc. remaining on the slag flushing plane surface. The water outlet line of the rear nozzle has a slightly larger angle with the slag flushing plane. It is mainly used for filter cloth regeneration to peel off fine particles and debris from the mesh gaps of the filter cloth to ensure that the air permeability of the filter cloth is restored or close to its original state.

Two or more rows of main pipes in a traditional slag flushing device are arranged separately. Each main pipe is welded with multiple branch pipes and connected using threaded short joints, angle valves (or ball valves), elbows, etc., and high-pressure nozzles are installed at the bottom of the branch pipes. The nozzle can be straight-shaped, duckbill-shaped or other types. The spray angle is 90 to 120 degrees. The water consumption of the nozzle is 1~ ^3m3 .

Existing shortcomings:

1. The distance between adjacent branch pipes is small, making it inconvenient to open and close valves or replace branch pipes and nozzles;

2. The pipeline has large resistance and high energy consumption;

For slender pipes, the longer the pipe length and the more elbows, the greater the pipe resistance will be. In order to ensure the best flushing effect, the nozzle water pressure must reach 0.6~1.5MPa. When the pipe resistance increases, it must be increased. The lift and motor power of the slag washing pump cannot achieve the purpose of energy saving;

3. The operating environment is unfriendly and not ergonomic;

Since the flushing liquid often uses acidic media, it is highly corrosive to the human body. The acid mist generated during high-pressure water flushing is relatively large. It is basically impossible to operate online every time the nozzle is replaced. The residual material on the middle and lower wall of the branch pipe There are many problems, and every time you pick up the branch pipe, you will encounter stuck and laborious phenomena. At the same time, because the height of the nozzle from the surface being flushed is low (50-100mm), the operator is required to squat or lie down. can barely touch As for the nozzles in the front row, this is very inconsistent with the relevant ergonomic regulations. Due to the difficulty of on-site operation and the poor operating environment, this limits the operator's willingness to proactively repair the nozzles to a certain extent. Over time, the nozzles cannot be repaired in time. If it is blocked due to cleaning, it will affect the flushing effect of the slag washing device, resulting in poor filter cloth regeneration effect, thus affecting the normal use of the entire filter equipment;

4. The installation position of the nozzle cannot meet the expected specified value;

The traditional structure relies on the slight rotation of the thread to manually control the installation position of the branch pipe and nozzle. Since the thread will inevitably loosen during the slag flushing process, it also depends on the operator's skill level and work responsibility, especially in the rush. During the construction period maintenance, it is impossible to ensure that the installation angle of each branch pipe can reach the specified value, thus affecting the flushing and regeneration effect of the filter cloth;

5. High failure rate and frequent cleaning;

The main faults of traditional slag flushing equipment include elbow wear and perforation, angle valve wear and leakage, branch pipe deformation, threaded joint leakage, serious pipeline blockage, etc.

Contents of the invention

In view of this, embodiments of the present invention hope to provide a split modular slag flushing device with a large operating space, a friendly operating environment, greatly reduced pipeline resistance, and no need to manually adjust the angle of the rotating branch pipe and nozzle, and the water output of each branch pipe and nozzle. Relatively uniform, the multiple groups of thin branch pipe assemblies adopt a split and modular design. The parts are highly versatile and interchangeable. The number of overall wearing parts is greatly reduced, the failure rate is reduced, and the start-up rate is increased.

In order to achieve the above objects, the technical solution of the present invention is implemented as follows:

The invention provides a split modular slag flushing device, which includes: a main pipe, a branch pipe, a thin branch pipe assembly, a U-shaped hook, a walkway platform, a main pipe bracket, and a foot; the main pipe is provided with a liquid inlet, and the branch pipe is provided with a liquid inlet. The upper end is connected to the main pipe, and the middle part of the branch pipe is a rubber hose. The rubber hose is connected to a thin branch pipe assembly. The thin branch pipe assembly includes a thin branch pipe, a transverse pipe, and multiple rows of nozzles. The thin branch pipe assembly is fixed on The U-shaped hook below the walkway platform is fixed, the walkway platform is connected to the legs, and the main pipe bracket supports the main pipe.

Preferably, the upper end of the branch pipe is connected to the main pipe through a branch pipe ball valve, one end of the rubber hose is connected to the branch pipe ball valve through a clamp joint, and the other end is connected to the thin branch pipe assembly through a clamp joint.

Further, it also includes: a baffle connected to the walkway platform, one end of the main pipe bracket is connected to the baffle, and the other end supports the main pipe.

Further, it also includes a high-pressure flushing water gun, the high-pressure flushing water gun is connected to a high-pressure hose, and the high-pressure hose is connected to the main pipe through a clamp joint and a water gun pipeline ball valve.

Preferably, the main pipe adopts a structure with a large center and small constrictions at both ends.

Further, the nozzle includes a nozzle locking cap, a sealing ring, and a nozzle head.

Preferably, the installation height of the branch pipe ball valve is 1000 to 1100 mm from the surface being flushed.

Preferably, the branch pipe adopts an enlarged structural design, with a diameter of DN30mm~DN80mm, and the length of the thin branch pipe is shortened to 300~500mm.

The beneficial effects of the present invention are as follows:

1) Multiple groups of thin branch pipe assemblies adopt a split and modular design. The parts are highly versatile and interchangeable. The split design ensures that when one group of thin branch pipe assemblies fails, it will not affect other groups of thin branch pipes. Normal operation, the modular design ensures the versatility between the thin branch pipe assemblies, the category and quantity of spare parts required by the user will be greatly reduced, and the phenomenon of mixing is not easy to occur during the installation process. The present invention adopts multiple sets of quickly disassembled The thin branch pipe assembly can be dragged out and moved to the walkway platform for maintenance when maintenance is needed. The operating space is large and the maneuverability is strong;

2) The length of each thin branch pipe is shortened by 50 to 60% compared with the traditional slender pipe. Elbows, angle valves, threaded nipples and other connecting parts are eliminated. The branch pipe adopts an enlarged structural design (its cross-sectional area is 4 to 4 times that of the thin branch pipe). 6 times), the pipeline resistance can be reduced by 10 to 30%;

3) The installation height of the branch pipe ball valve is 1000~1100mm from the surface being flushed, which complies with ergonomic regulations. The thin branch pipe assembly can be completely dragged away from the acid mist environment during maintenance, making the operating environment more friendly;

4) The angles and orientations of all thin branch pipe assemblies are prefabricated in advance, so on-site installation is simple and there is no need to manually adjust the installation angle, which avoids errors caused by human operation and ensures the overall slag flushing effect;

5) The main pipe adopts a reduced structure (large in the middle and small at both ends), which is more in line with fluid engineering. This design ensures that the water output of each branch pipe and nozzle is relatively uniform;

6) One main pipe is used, eliminating the numerous thin branch angle valves (or ball valves), and is highly integrated with the walkway platform without the need for a special main pipe bracket. Therefore, the overall structure is better, the materials are saved, the processing difficulty is lower, and the cost is higher. Low, because elbows, thin pipe ball valves, and threaded nipples are not used, the number of overall wearing parts is greatly reduced, the failure rate is reduced, and the start-up rate is increased;

7) The use of rubber hoses in the middle section of the branch pipes instead of traditional metal pipes will help prevent the flow of fluid inside the hoses. Risk of scale formation on pipe walls and blockage;

8) Add a high-pressure flushing water gun. You can use the water gun to flush the surface of the thin tube assembly before each removal of the thin tube assembly to quickly remove accumulations and residues on the surface.

Description of the drawings

Figure 1 is a schematic structural diagram of a split modular slag flushing device according to an embodiment of the present invention;

Figure 2 is a schematic cross-sectional structural diagram of a split modular slag flushing device according to an embodiment of the present invention;

Figure 3 is a partially enlarged cross-sectional schematic diagram of the positional relationship between the thin branch pipe assembly and the U-shaped hook in a split modular slag flushing device according to an embodiment of the present invention;

Figure 4 is a schematic structural diagram of the thin branch pipe assembly in a split modular slag flushing device according to an embodiment of the present invention.

Among them, 1 is the main pipe, 101 is the liquid inlet, 2 is the branch pipe, 201 is the branch pipe ball valve, 202 is the rubber hose, 203 is the clamp joint, 3 is the main pipe bracket, 4 is the U-shaped hook, and 5 is the thin branch pipe assembly. , 501 is the thin branch pipe, 502 is the horizontal pipe, 503 is the nozzle, 5031 is the nozzle locking cap, 5032 is the sealing ring, 5033 is the nozzle head, 6 is the walkway platform, 7 is the baffle, 8 is the foot, 9 is high pressure washing For the water gun, 10 is a high-pressure hose, 11 is a ball valve in the water gun pipeline, and 12 is the surface to be flushed.

Implementation

In order to understand the characteristics and technical content of the present invention in more detail, the implementation of the present invention will be described in detail below with reference to the accompanying drawings. The attached drawings are for reference only and are not intended to limit the present invention.

Figure 1 is a schematic structural diagram of a split modular slag flushing device according to an embodiment of the present invention. Figure 2 is a cross-sectional structural schematic diagram of a split modular slag flushing device according to an embodiment of the present invention. As shown in combination with Figures 1 and 2, the The slag flushing device includes: main pipe 1, branch pipe 2, thin branch pipe assembly 5, U-shaped hook 4, walkway platform 6, main pipe bracket 3, and feet 8; the main pipe 1 is provided with a liquid inlet 101, and the upper end of the branch pipe 2 It is connected with the main pipe 1, and the middle part of the branch pipe 2 is a rubber hose 202. The rubber hose 202 is connected with the thin branch pipe assembly 5. The thin branch pipe assembly 5 includes a thin branch pipe, a transverse pipe, and multiple rows of nozzles. The assembly 5 is fixed by a U-shaped hook 4 fixed under the walkway platform 6 , which is connected to the legs 8 , and the main pipe bracket 3 supports the main pipe 1 .

Preferably in this embodiment, the upper end of the branch pipe 2 is connected to the main pipe 1 through a branch pipe ball valve 201. One end of the rubber hose 202 is connected to the branch pipe ball valve 201 through a clamp joint 203, and the other end is connected to the thin branch pipe assembly through a clamp joint 203. 5 connected. Here, the branch pipe ball valve 201 and the clamp joint 203 can also be replaced with other implementable valves. , connection joints, are not limited, and are all within the protection scope of the solution of the present invention.

In this embodiment, a main pipe 1 is used, eliminating the numerous thin branch angle valves (or ball valves), and is highly integrated with the walkway platform without using a special main pipe bracket. Therefore, the overall structure is better, materials are saved, and processing difficulty is lower. , The cost is lower. Since elbows, slim pipe ball valves and threaded nipples are not used, the overall number of wearing parts is greatly reduced, the failure rate is reduced, and the start-up rate is increased.

In this embodiment, the multiple groups of thin branch tube assemblies 5 adopt a split and modular design. The parts have strong versatility and high interchangeability. The split design ensures that when one group of thin branch tube assemblies fails, it will not affect the other groups. The thin branch pipe assembly works normally, and the modular design ensures the versatility between the thin branch pipe assemblies. The types and quantities of spare parts required by the user will be greatly reduced, and mixing is not easy to occur during the installation process. The invention adopts a method that can be quickly disassembled. It has multiple sets of thin branch pipe assemblies. When maintenance is needed, the thin branch pipe assembly can be dragged out and moved to the walkway platform for maintenance. The operation space is large and the maneuverability is strong. Here, the number of thin branch tube assemblies is not limited, the number and number of nozzle rows in each group of thin branch pipe assemblies is not limited, and the type and shape of the nozzles are not limited. They can be set according to the specific practical application, and are all within the protection scope of the present invention. .

In this embodiment, the angles and orientations of all thin branch pipe assemblies 5 are prefabricated in advance, and the on-site installation is simple. There is no need to manually adjust the installation angle, which avoids errors caused by human operation and ensures the overall slag flushing effect. Here, the angle and orientation of the nozzle in the thin branch pipe assembly can be customized according to the actual situation, and any angle and orientation of the nozzle are within the protection scope of the solution of the present invention.

In this embodiment, the rubber hose 202 replaces the traditional metal pipeline. When the slag washing device is actually used, the slag washing water will inevitably contain some impurities, particles, crystals, etc., such as CaSO, K SiF, and Na SiF. In serious cases, it will Frequent blockage of the pipeline results in a reduction in the nozzle flow rate, which in turn affects the overall flushing effect. The surface energy of the rubber material itself is relatively low, and the pipe wall is not prone to scaling. During actual operation, the flow fluctuations generated by the slag flushing water pump will cause irregularities in the rubber pipe. The peristalsis and vibration phenomena will help prevent the fluid inside the hose from forming scale on the pipe wall and causing the risk of blockage.

This embodiment also includes: a baffle 7 connected to the walkway platform 6 , one end of the main pipe bracket 3 is connected to the baffle 7 , and the other end supports the main pipe 1 . The baffle here can prevent sludge from splashing on the staff.

This embodiment also includes a high-pressure flushing water gun 9, which is connected to a high-pressure hose 10, and the high-pressure hose 10 is connected to the main pipe 1 through a clamp joint and a water gun pipeline ball valve 11.

Here, in this embodiment, a high-pressure flushing water gun (commercially available part) is added to each end of the present embodiment. Each time the thin branch tube is removed, Before assembly, you can use a water gun to flush the surface of the thin tube assembly to quickly remove accumulations and residues on the surface of the thin tube assembly. Because the dense area formed by the thin branch tube assembly will form a fine grid, it is easy to accumulate and form a solid rod, which is often difficult to remove during actual maintenance. Acidic attachments can easily corrode the operator's arms, eyes and other body parts. There are certain safety risks.

In this embodiment, preferably, the main pipe 1 adopts a structure with a large center and small constrictions at both ends.

Here, the main pipe 1 in this embodiment adopts a reduced structure (large in the middle and small at both ends), which is more in line with fluid engineering. This design ensures that the water output of each branch pipe and nozzle is relatively uniform.

In this embodiment, the nozzle includes a nozzle locking cap, a sealing ring, and a nozzle head.

In this embodiment, preferably, the installation height of the branch pipe ball valve 201 is 1000-1100 mm from the surface to be flushed. Here, the distance between the branch pipe ball valve and the slag-washed surface is preferably 1000 to 1100 mm, which conforms to ergonomic regulations. During maintenance, the thin branch pipe assembly can be completely dragged away from the acid mist environment. The operating environment is relatively friendly, and it can also be set according to the actual operating environment. The distance, the specific distance is not limited, is within the scope of protection of the solution of the present invention.

The branch pipe 2 adopts an enlarged structure design. In this embodiment, the preferred diameter is DN30mm~DN80mm, and the length of the thin branch pipe is shortened to 300~500mm.

Here, the length of each thin branch pipe in this embodiment is shortened by 50 to 60% compared with the traditional long thin pipe, elbows, angle valves, threaded nipples and other connecting parts are eliminated, and the branch pipe 2 adopts an enlarged structural design (its cross-sectional area is 4 to 6 times of thin branch pipes), the pipeline resistance can be reduced by 10 to 30%.

Figure 3 is a partially enlarged cross-sectional schematic diagram of the positional relationship between the thin branch pipe assembly and the U-shaped hook in a split modular slag flushing device according to the embodiment of the present invention. As shown in Figure 3, the thin branch pipe assembly 5 is fixed on the walkway The U-shaped hook 4 under the platform 6 is fixed, and it is more convenient to install and disassemble. When the nozzle is blocked or damaged, you only need to close the branch pipe ball valve first, properly loosen the upper U-shaped hole fixing bolt, and then the thin branch pipe assembly can be removed at any time and connected with the The rubber hose can be pulled out together, and the lower end clamp of the rubber hose can also be removed and the spare thin branch pipe assembly can be replaced to achieve the purpose of rapid online maintenance.

Figure 4 is a schematic structural diagram of the thin branch tube assembly in a split modular slag flushing device according to an embodiment of the present invention. As shown in Figure 4, the thin branch tube assembly 5 includes a thin branch tube 501, a transverse tube 502, and a multi-row nozzle 503. , as shown in Figure 3, the nozzle 503 includes a nozzle locking cap 5031, a sealing ring 5032, and a nozzle head 5033.

The operation process of a split modular slag flushing device in this embodiment is as follows: the flushing liquid enters the main pipe through the liquid inlet, then flows into the branch pipe through the controlled branch pipe ball valve, enters the middle rubber hose, and continues downward into For the thin branch assembly, the flushing liquid is sprayed through the nozzle to rinse the filter cloth. In addition, through the high-pressure flushing water guns configured at both ends, the water gun can be used to flush the surface of the thin branch assembly before each removal of the thin branch assembly to quickly clean the thin branch assembly. When the nozzle is clogged or damaged due to accumulation and residue on the surface, you only need to close the branch pipe ball valve first and loosen the upper U-shaped hole fixing bolt appropriately. Then you can dismantle the thin branch pipe assembly at any time and pull it out together with the rubber hose. , you can also remove the clamp at the lower end of the rubber pipe and replace the spare thin branch pipe assembly, thereby achieving the purpose of rapid online maintenance.

In the present invention, the main pipe, branch pipe, and thin branch pipe assembly are connected, and their placement position can be outside the baffle and the main pipe bracket, or inside the baffle and the main pipe bracket. When the position is inside, the baffle can be omitted, and the main pipe can be placed directly on the main pipe bracket. The stand is supported to the ground, meaning there is no restriction on its placement.

The use of a split walkway platform (independent walkway and main pipe bracket), or a multi-row structure (similar to the main pipe, branch pipe, and thin branch pipe assembly structure) arranged with reference to the embodiments of the present invention, are all within the scope of the patent of the present invention.

The specific models of the above-mentioned devices are not limited and described in detail, and the in-depth connection methods of the above-mentioned devices are not described in detail. It is common knowledge and can be understood by those skilled in the art.

The above are only preferred embodiments of the present invention and are not used to limit the protection scope of the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention shall be included in within the protection scope of the present invention.

Claims

A split modular slag flushing device, which is characterized in that it includes: a main pipe, a branch pipe, a thin branch pipe assembly, a U-shaped hook, a walkway platform, a main pipe bracket, and a foot; the main pipe is provided with a liquid inlet, and the branch pipe The upper end is connected to the main pipe, and the middle part of the branch pipe is a rubber hose. The rubber hose is connected to a thin branch pipe assembly. The thin branch pipe assembly includes a thin branch pipe, a transverse pipe, and multiple rows of nozzles. The thin branch pipe assembly is fixed on The U-shaped hook below the walkway platform is fixed, the walkway platform is connected to the legs, and the main pipe bracket supports the main pipe.
A split modular slag flushing device according to claim 1, characterized in that the upper end of the branch pipe is connected to the main pipe through a branch pipe ball valve, one end of the rubber hose is connected to the branch pipe ball valve through a clamp joint, and the other end is connected through The clamp joint is connected with the thin branch pipe assembly.
A split modular slag flushing device according to claim 1, further comprising: a baffle, the baffle is connected to the walkway platform, one end of the main pipe bracket is connected to the baffle, and the other end supports director.
A split modular slag flushing device according to claim 1, characterized in that it also includes a high-pressure flushing water gun, the high-pressure flushing water gun is connected to a high-pressure hose, and the high-pressure hose is connected to the water gun pipeline ball valve through a clamp joint and a water gun pipeline ball valve. The supervisor is connected.
A split modular slag flushing device according to claim 1, characterized in that the main pipe adopts a structure with a large center and small constrictions at both ends.
A split modular slag flushing device according to claim 1, characterized in that the nozzle includes a nozzle locking cap, a sealing ring, and a nozzle head.
A split modular slag flushing device according to claim 1, characterized in that the installation height of the branch pipe ball valve is 1000 to 1100 mm from the slag flushing surface.
A split modular slag flushing device according to claim 1, characterized in that the branch pipe adopts an enlarged structural design, the diameter is DN30mm~DN80mm, and the length of the thin branch pipe is shortened to 300~500mm.