Sulfur-containing flue gas purification device

Abstract

The utility model discloses a sulfur-containing flue gas purification device, and relates to the technical field of sulfur-containing flue gas purification, the sulfur-containing flue gas purification device comprises a purification device main body which is a cylindrical tower body, the interior of the purification device main body is divided into a washing area and a demisting area, the tower body is made of L stainless steel, the purification device main body is mounted on a mounting frame, and a conveying system is mounted on the mounting frame. Comprising a connecting pipeline, a conveying pipeline and a mounting assembly used for mounting and dismounting the connecting pipeline and the conveying pipeline, and the circulating system comprises a first circulating pump, a second circulating pump, a first circulating box, a second circulating box, a spraying pipe network and atomizing nozzles. The slag discharging system comprises a checking pump and a conical dust collecting hopper arranged at the bottom; the control system takes a PLC module as a core and integrates temperature, pressure and liquid level sensors and a human-computer interaction interface; the auxiliary system comprises a flue gas inlet and a flue gas outlet, the flue gas is wrapped by a water film and then settles to the bottom of the tower through a multi-layer atomization spraying system arranged in the purification tower, and compared with traditional electrostatic dust collection, the efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a sulfur-containing flue gas purification device. BACKGROUND

[0002] The sulfur-containing flue gas purification device is a device for treating sulfur-containing waste gas in industrial production, which effectively separates and removes sulfides and other pollutants in flue gas by physical or chemical methods, thereby reducing the impact on the environment.

[0003] In most cases, sulfur dioxide in the flue gas will be reused to reduce resource waste and reduce the impact of emissions on the environment. However, in actual operation, if the flue gas is directly introduced into the downstream process system without dust removal treatment, ash and other particulate matters in the flue gas will inevitably be brought into the subsequent production process, which not only affects the quality of the final product, but also increases the processing cost and maintenance difficulty of the downstream process.

[0004] In addition, the connection between the existing sulfur-containing flue gas purification device and the conveying pipeline usually adopts a flange bolt fixing method. Although this connection method can meet the basic functional requirements to some extent, it has some significant problems in actual use. Specifically, the disassembly and installation process of the flange bolt connection is relatively cumbersome, especially when frequent equipment maintenance or filter replacement is required. Since the flange needs to be aligned with multiple bolt holes and tightened one by one, the operation not only takes a long time, but also increases the working difficulty and safety risk of maintenance personnel when working in high altitude or complex environments. Therefore, the utility model provides a sulfur-containing flue gas purification device to solve the above problems. SUMMARY

[0005] The utility model aims at providing a sulfur-containing flue gas purification device to solve the problem that the connection between the existing sulfur-containing flue gas purification device and the conveying pipeline usually adopts a flange bolt fixing method. Although this connection method can meet the basic functional requirements to some extent, it has the problem of taking a long time in actual use.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a sulfur-containing flue gas purification device,

[0007] The purification device main body is a cylindrical tower body, which is internally divided into a washing zone and a demisting zone. The tower body is made of L stainless steel, and the purification device main body is installed on the mounting frame.

[0008] The conveying system includes a connecting pipeline, a conveying pipeline, and a mounting assembly for mounting and dismounting the connecting pipeline and the conveying pipeline.

[0009] The circulating system comprises a first circulating pump, a second circulating pump, a first circulating tank, a second circulating tank, a spray pipe network and an atomizing nozzle.

[0010] The slag discharging system comprises a discharging pump and a bottom conical dust hopper.

[0011] The control system comprises a PLC module as a core, integrated temperature, pressure, liquid level sensors and a man-machine interface.

[0012] The auxiliary system comprises a flue gas inlet and a flue gas outlet.

[0013] As an improvement of the above technical scheme, the first circulating pump, the second circulating pump, the discharging pump, the first circulating tank and the second circulating tank are connected with the connecting pipe and the conveying pipe, and four groups of mounting assemblies are uniformly arranged around the connecting pipe and the conveying pipe.

[0014] As an improvement of the above technical scheme, the mounting assembly comprises a movable inner cavity formed in the conveying pipe, a sliding groove formed in the movable inner cavity, a sliding block slidingly connected in the sliding groove, a reset spring arranged on the inner wall of the sliding groove, a movable block connected with the sliding block, a movable plate connected with the movable block, a clamping plate connected with the movable plate, and a pushing block arranged on the outer wall of the movable plate.

[0015] As an improvement of the above technical scheme, one end of the reset spring is connected with the outer wall of the sliding block, and the other end of the reset spring is connected with the inner wall of the sliding groove.

[0016] As an improvement of the above technical scheme, the movable plate and the clamping plate are combined in an L shape, and the bottom end surface of the clamping plate is arranged as an arc surface matched with the connecting pipe and the conveying pipe.

[0017] As an improvement of the above technical scheme, the movable plate and the clamping plate are combined in an L shape, and the bottom end surface of the clamping plate is arranged as an arc surface matched with the connecting pipe and the conveying pipe.

[0018] Compared with the prior art, the present application has the following advantages:

[0019] 1. The multi-layer atomizing spray system (spray pipe network and nozzle) arranged in the purification tower can make the dust particles in the flue gas fully contact with the atomized water, and the dust particles are wrapped by the water film and then settled at the bottom of the tower, so that the dust removal efficiency is improved compared with the traditional electrostatic dust removal, the water washing method has stronger capturing capacity for micron-sized particles, the dust is prevented from entering the downstream process, the ash-water mixture is repeatedly used after being filtered by the circulating water tank, and the water resource consumption is reduced.

[0020] 2. Compared with the traditional flange bolt connection mode, the device adopts a more efficient installation assembly, which can simplify the installation and disassembly process of the connecting pipeline and the conveying pipeline. Through the operation of the knob, quick connection and disassembly can be realized, reducing the time and labor intensity required for installation and maintenance. Especially when working in complex environments, it can effectively reduce the work difficulty and safety risk of maintenance personnel.

[0021] 3. The PLC control system integrates multiple sensors such as temperature, pressure, and liquid level, and operates and manages through a human-computer interaction interface, so that workers can monitor the running state of the equipment in real time and set parameters. The system can automatically adjust and optimize the purification process, reducing manual intervention and ensuring efficient operation and stability of the equipment.

[0022] 4. Through the effective work of the purification device, the ash, particulate matter and other pollutants in the flue gas are completely removed, avoiding the entry of these substances into the downstream process system, which not only reduces the equipment wear in the subsequent production process, but also reduces the cleaning and maintenance cost of the downstream process, improving the efficiency of the entire production line. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 is a first perspective three-dimensional structure schematic view of the utility model;

[0024] Figure 2 is a second perspective three-dimensional structure schematic view of the utility model;

[0025] Figure 3 is a local structure three-dimensional state schematic view of the utility model;

[0026] Figure 4 is a three-dimensional structure schematic view of the installation assembly of the utility model;

[0027] Figure 5 is a side view cross-sectional schematic view of the installation assembly of the utility model.

[0028] In the figure: 1, purification device main body; 2, connecting pipeline; 3, conveying pipeline; 4, installation assembly; 41, movable cavity; 42, chute; 43, sliding block; 44, return spring; 45, movable block; 46, movable plate; 47, clamping plate; 48, knob; 5, installation frame; 6, first circulating pump; 7, second circulating pump; 8, exhaust pump; 9, first circulating tank; 10, second circulating tank; 11, flue gas inlet; 12, flue gas outlet. DETAILED DESCRIPTION

[0029] 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.

[0030] Example:

[0031] like Figures 1-5 As shown, this embodiment proposes a sulfur-containing flue gas purification device, including a purification device body 1, which is a cylindrical tower body, and is divided into a washing zone and a demisting zone inside. The tower body is made of 316L stainless steel, and the purification device body 1 is installed on the mounting frame 5.

[0032] The conveying system includes a connecting pipe 2, a conveying pipe 3, and an installation assembly 4 for installing and removing the connecting pipe 2 and the conveying pipe 3.

[0033] The circulation system includes a first circulation pump 6, a second circulation pump 7, a first circulation tank 9, a second circulation tank 10, a spray pipe network, and atomizing nozzles;

[0034] The inspection system includes an inspection pump 8 and a cone-shaped ash collection hopper at the bottom;

[0035] The control system includes a PLC module as its core, integrating temperature, pressure, liquid level sensors and a human-machine interface;

[0036] The auxiliary system includes a flue gas inlet 11 and a flue gas outlet 12;

[0037] The main body 1 of the purification device is connected to the flue gas inlet 11 via a flange on the side wall, and the main body 1 of the purification device is connected to the flue gas outlet 12 via a flange on the top. The main body 1 of the purification device is equipped with a first circulation pump 6, a second circulation pump 7, a first circulation box 9, and a second circulation box 10 below the main body 1 of the purification device, and the bottom of the main body 1 of the purification device is connected to a drain pump 8 via a flange.

[0038] Input signals to the PLC control system: Temperature sensor for flue gas in the tower, circulating water, pressure transmitter for pump outlet, pressure in the tower, level gauge for circulating water tank, and ash collection hopper are connected to the PLC analog input module via shielded cables. HMI operation commands such as start / stop and parameter settings are transmitted via Ethernet. Output control: The frequency converters of the first circulating pump 6 and the second circulating pump 7, the start / stop relays of the troubleshooting pump 8, and the opening signals of the electric valves are controlled via digital output modules. Alarm indicator lights and audible and visual alarms are connected to the PLC relay output terminals.

[0039] After the system is started, the circulating water enters the first circulating tank 9 and the second circulating tank 10, the flue gas enters the purification device main body 1 from the flue gas inlet 11, and moves from bottom to top, the installation assembly 4 and the second circulating pump 7 are started and operated, the circulating water is pumped in, and the flue gas is purified in the tower after being atomized by the nozzle, the tower and the atomized water are mixed, and the ash is washed to the bottom of the tower for storage, at this time the temperature of the flue gas is reduced to 60 DEG C, and after rising to the top of the tower, the flue gas is contacted with the demister and then transported to the next process through the flue gas outlet 12 pipeline connection, when the ash in the tower accumulates to a certain amount, the discharge pump 8 is started, the ash is discharged from the bottom of the tower, and the water in the tower is returned to the circulating tank for recycling, and the control system detects the temperature, pressure, liquid level and other parameters, and the operator can check the equipment operation at any time.

[0040] The first circulating pump 6, the second circulating pump 7, the discharge pump 8, the first circulating tank 9 and the second circulating tank 10 are connected with the connecting pipeline 2 and the conveying pipeline 3 through the conveying pipeline 3 and the connecting pipeline 2, and four groups of installation assemblies 4 are uniformly arranged on the connecting pipeline 2 and the conveying pipeline 3 in a ring shape;

[0041] The installation assembly 4 comprises a movable inner cavity 41 formed in the conveying pipeline 3, a sliding groove 42 formed in the movable inner cavity 41, a sliding block 43 slidably connected in the sliding groove 42, a reset spring 44 arranged on the inner wall of the sliding groove 42, a movable block 45 connected with the sliding block 43, a movable plate 46 connected with the movable block 45, a clamping plate 47 connected with the movable plate 46, and a pushing block 48 arranged on the outer wall of the movable plate 46.

[0042] When the staff needs to install the connecting pipeline 2 and the conveying pipeline 3, the pushing block 48 is first pushed upward, so that the pushing block 48 drives the movable plate 46 to move upward, the movable plate 46 slides in the movable inner cavity 41 through the movable block 45, and the movable block 45 slides in the sliding groove 42 through the sliding block 43, and the reset spring 44 is deformed during the sliding process, until the movable plate 46 drives the clamping plate 47 to separate from the outer wall of the connecting pipeline 2 and the conveying pipeline 3, at this time the conveying pipeline 3 is attached to the connecting pipeline 2, and then the pushing pushing block 48 is loosened, at this time the restoring force of the elasticity of the reset spring 44 drives the movable block 45 to restore, and the movable block 45 drives the clamping plate 47 on the movable plate 46 to restore, finally the outer wall of the connecting pipeline 2 and the conveying pipeline 3 is clamped and fixed.

[0043] It is worth noting that one end of the reset spring 44 is connected with the outer wall of the sliding block 43, the other end of the reset spring 44 is connected with the inner wall of the sliding groove 42, and the reset spring 44 forms a bidirectional elastic constraint, when the sliding block 43 slides, the reset spring 44 is stretched or compressed, and always provides a restoring force opposite to the movement direction;

[0044] The combined shape of the movable plate 46 and the clamping plate 47 is provided in an L shape, the L-shaped combination forms a rigid triangular support, disperses the bending moment generated by the clamping force, prevents the movable plate 46 from deforming when subjected to force, the bottom end surface of the clamping plate 47 is provided as an arc-shaped surface matched with the connecting pipeline 2 and the conveying pipeline 3, so that the clamping force is uniformly distributed, the pressure is reduced, the pipeline surface indentation is prevented, and the rubber gasket (not shown in the figure, but a conventional extension design) is embedded in the arc-shaped surface;

[0045] The toggle block 48 is provided in protrusion, the outer convexity of the toggle block 48 is 2-4mm, which meets the thickness of the adult finger pushing, so that even if wearing gloves, it can be easily operated, and the outer wall of the toggle block 48 is provided with anti-skid lines, so as to avoid the risk of slipping when the hands are wet or greasy.

[0046] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A sulfur-containing flue gas purification device characterized in that: It comprises a purification device body (1), which is a cylindrical tower body, internally divided into a washing zone and a demisting zone, and made of 316L stainless steel, and is installed on a mounting frame (5); A conveying system comprising a connecting pipeline (2), a conveying pipeline (3), and a mounting assembly (4) for mounting and dismounting the connecting pipeline (2) and the conveying pipeline (3); A circulating system comprising a first circulating pump (6), a second circulating pump (7), a first circulating tank (9), a second circulating tank (10), a spray pipeline network, and atomizing nozzles; An exhaust system comprising an exhaust pump (8) and a bottom conical dust hopper; A control system comprising a PLC module as the core, integrated temperature, pressure, and liquid level sensors, and a human-machine interface; An auxiliary system comprising a flue gas inlet (11) and a flue gas outlet (12).

2. A sulphur-containing off-gas cleaning device according to claim 1, characterised in that: The flue gas inlet (11) is connected to the side wall of the purification device body (1) through a flange, the flue gas outlet (12) is connected to the top of the purification device body (1) through a flange, the first circulating pump (6), the second circulating pump (7), the first circulating tank (9), and the second circulating tank (10) are arranged below the purification device body (1), and the exhaust pump (8) is connected to the bottom of the purification device body (1) through a flange.

3. A sulphur-containing off-gas cleaning device according to claim 2, characterised in that: The first circulating pump (6), the second circulating pump (7), the exhaust pump (8), the first circulating tank (9), and the second circulating tank (10) are all connected to the connecting pipeline (2) and the conveying pipeline (3) through the conveying pipeline (3), and four sets of mounting assemblies (4) are uniformly arranged around the connecting pipeline (2) and the conveying pipeline (3).

4. A sulphur-containing off-gas cleaning device according to claim 3, characterised in that: The mounting assembly (4) comprises a movable inner cavity (41) opened on the conveying pipeline (3), a sliding groove (42) opened in the movable inner cavity (41), a sliding block (43) slidingly connected in the sliding groove (42), a reset spring (44) arranged on the inner wall of the sliding groove (42), a movable block (45) connected to the sliding block (43), a movable plate (46) connected to the movable block (45), a clamping plate (47) connected to the movable plate (46), and a toggle block (48) arranged on the outer wall of the movable plate (46).

5. A sulphur-containing off-gas cleaning device according to claim 4, characterised in that: One end of the reset spring (44) is connected to the outer wall of the sliding block (43), and the other end of the reset spring (44) is connected to the inner wall of the sliding groove (42).

6. A sulphur-containing off-gas cleaning device according to claim 4, characterised in that: The movable plate (46) and the clamping plate (47) are combined in an L shape, and the bottom end surface of the clamping plate (47) is arranged as an arc surface matched with the connecting pipeline (2) and the conveying pipeline (3).

7. A sulphur-containing off-gas cleaning device according to claim 4, characterised in that: The toggle block (48) is protruding, and the outer wall of the toggle block (48) is provided with anti-slip lines.

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