JP3244749U - Dust removal, desulfurization, and denitrification equipment for thermal power generation boilers - Google Patents

Abstract

An object of the present invention is to provide a dust removal, desulfurization and denitrification device for a thermal power generation boiler, which removes dust while desulfurizing and denitrating. [Solution] A dust removal desulfurization and denitrification device for a thermal power generation boiler includes a reaction tank, an atomization pipe drilled in the reaction tank and rotatably connected to the reaction tank, and an atomization pipe provided at both ends of the atomization pipe, respectively. a filtration tank provided below the reaction tank and communicating with the reaction tank, and an intake pipe and an exhaust pipe communicating with the reaction tank at both ends of the reaction tank, respectively. is provided. By providing an atomization tube that rotates relative to the reaction tank, the desulfurization and denitrification mixture is added to the atomization tube, jetted out along the nozzle, and rotated through the drive motor, and the desulfurization and denitration mixture is added to the atomization tube. By spraying the inside of the reaction tank and bringing it into contact with the inner wall of the reaction tank, dust adhering to the inner wall of the reaction tank in the exhaust gas can be washed away. [Selection diagram] Figure 1

Description

This utility model relates to the technical field of thermal power generation, and in particular, to a dust removal, desulfurization, and denitrification device for a thermal power generation boiler.

Exhaust gas desulfurization and denitrification technology is a boiler exhaust gas purification technology applied to the chemical industry that produces polyoxynitrogen and sulfur oxides. Although the concentration of SOX and NOX in the exhaust gas of thermal power plant boilers is not high, the total amount is large, and the large amount of smoke dust, sulfide and ammonia oxide in the boiler exhaust gas is the main pollution source causing environmental pollution. Among the existing combined desulfurization and denitrification technologies, some adopt a technology that combines exhaust gas desulfurization and exhaust gas denitrification, while others use adsorbents to simultaneously remove SOX and NOX technologies, both of which are expensive. Desorption efficiency can be achieved.

The invention patent with the disclosure number CN112156642A discloses a desulfurization, denitrification, and dust removal device, which includes an exhaust gas inlet, a communication pipe, a control valve, a nozzle, and a hydraulic cylinder, and includes an exhaust gas inlet, a communication pipe, a control valve, a nozzle, and a hydraulic cylinder. a flange is provided at one end, the exhaust gas inlet is connected to a single-stage filter device through the flange, the nozzle is fixed to the inner wall of the reaction chamber, the nozzle is located below the pressure plate, and the hydraulic cylinder is connected to the two-stage filter device and a hydraulic cylinder and a telescoping rod are connected, the telescoping rod is located inside the reaction chamber, and a pressure plate is fixed to the bottom end of the telescoping rod, and the discharge pipe is connected to a two-stage filter device. The exhaust pipe is connected to a gas detection outlet, one end of the reflux pipe is connected to the communication passage, and the other end of the reflux pipe is connected to the discharge pipe. As the invention patent with the disclosure number CN110141963A discloses an exhaust gas desulfurization, denitrification, and dust removal device, this exhaust gas desulfurization, denitrification, and dust removal device includes a water purification pond, a single-stage desulfurization tank, and a two-stage desulfurization tank arranged in order from left to right. and a denitrification tank, a smoke pipe is connected to the outside of the water purification tank, a suction pump is provided at the outer end of the smoke pipe, an exhaust port is provided at the inner end of the smoke pipe, and the exhaust port is connected to the water purification tank. It is attached to the inner bottom, and the first stage desulfurization tank and the water purification tank are connected through the first intake pipe. A desulfurization activated carbon fiber catalyst bed is installed inside the first stage desulfurization tank, and a desulfurization activated carbon fiber catalyst bed is installed inside the desulfurization activated carbon fiber catalyst bed. is provided with a cavity, the other end of the first intake pipe communicates with the cavity, the desulfurization activated carbon fiber catalyst bed has a honeycomb structure, and the surface of the desulfurization activated carbon fiber catalyst bed has micropores.

Although the above-mentioned conventional technology can perform desulfurization and denitration treatment on each exhaust gas, it is not possible to effectively treat suspended matter in the exhaust gas, which tends to corrode the pipe wall of the exhaust gas passage after a long period of time. It is necessary to design a dust removal, desulfurization, and denitrification device for a thermal power generation boiler that is capable of desulfurization and denitrification as well as removing suspended matter in exhaust gas in response to the shortcomings of the prior art.

In order to overcome the drawbacks existing in the above-mentioned conventional technology, this utility model is a dust removal desulfurization and denitrification device for a thermal power boiler that can desulfurize and denitrify the exhaust gas of the boiler and remove suspended matter in the exhaust gas. I will provide a.

The technical proposal related to this utility model relates to a dust removal, desulfurization, and denitrification device for a thermal power generation boiler. This dust removal desulfurization and denitrification device for a thermal power generation boiler includes a reaction tank, an atomization pipe bored in the reaction tank and rotatably connected to the reaction tank, and a drive provided at each end of the atomization pipe. It includes a motor, a pipe joint, and a filtration tank provided below the reaction tank and communicating with the reaction tank, and an intake pipe and an exhaust pipe are provided at both ends of the reaction tank, respectively, communicating with the reaction tank. , the pipe joint is rotatably connected to the atomization pipe, a seal ring is provided at the connection point between the pipe joint and the atomization pipe, and the filtration tank and the reaction tank communicate with each other via a drain pipe. are doing.

In a further preferred embodiment, a plurality of nozzles are provided alternately along the longitudinal direction of the atomization tube, and the nozzles communicate with the atomization tube.

In a further preferred embodiment, the filtration tank includes a rectangular housing, a filter plate provided inside the housing, and a blade unit attached to the housing and abutting the filter plate, and inside the housing, A partition plate is provided that vertically divides the housing into a water storage chamber for storing liquid and a storage chamber for storing impurities, and a water intake port communicating with a drain pipe is provided at the top of the water storage chamber, One side wall of the storage chamber is provided with a slot, the partition plate is provided with a cutout that is flat with the slot, the filter plate is inserted into and fitted into the slot and the cutout, and the filter plate is inserted into the slot and the cutout. parallel to the top of the housing

In a further preferred embodiment, the blade unit includes a blade, a top plate, and a tension spring, the blade is inserted and fitted into the top wall of the housing, the lower end of the blade abuts the filter plate, and the blade The upper end of the tension spring is fixedly connected to the top plate, and both ends of the tension spring are fixedly connected to the top wall of the housing and the top plate, respectively.

In a further preferred embodiment, a discharge port is provided on one side of the storage chamber.

In a further preferred embodiment, the filter plate further includes a chute bar and a handle, the filter plate is fitted into the chute bar, the chute bar is fitted into the slot and the notch, and the handle is at one end of the chute bar. It is set in.

A further preferred embodiment further includes a pump, a drain pipe, and a water suction pipe, wherein the pipe joint is a three-way joint, one end of the three-way joint communicates with one end of the drain pipe, and the other end of the drain pipe communicates with one end of the drain pipe. It communicates with the discharge end of the pump, and both ends of the water suction pipe communicate with the suction end of the pump and the water storage chamber, respectively.

In a further preferred embodiment, a filtering lid is provided at one end where the water suction pipe and the water storage chamber communicate with each other.

Compared with the prior art, the beneficial effects of this utility model are as follows.
1. This utility model is equipped with an atomization tube that rotates relative to the reaction tank, so that the desulfurization and denitrification mixture is added to the atomization tube, sprayed along the nozzle, and the atomization tube is rotated through the drive motor. At the same time, by spraying the desulfurization and denitrification mixture into the reaction tank and bringing it into contact with the inner wall of the reaction tank, it is possible to wash away the dust attached to the inner wall of the reaction tank in the exhaust gas, and it is possible to remove dust while desulfurization and denitration. Realize.

2. This utility model collects the mixed liquid after desulfurization and denitration treatment in the reaction tank in a housing, filters it through a filter plate, filters impurities such as dust in the mixed liquid, and collects it by scraping it through a blade unit. By realizing filtration of the mixed liquid, collecting and reusing the water in the mixed liquid while removing dust, it not only plays the role of removing dust, but also makes it possible to perform secondary use of water resources. can.

FIG. 1 is a sectional view of the overall configuration of the present utility model. FIG. 2 is a schematic structural diagram of the utility model filtration tank and blade unit. FIG. 3 is a structural perspective view of the utility model chute bar, the handle, and the filter plate. 1 is an enlarged view of A in FIG. 1 of the present utility model.

The technical proposal will be further explained below along with specific examples. Note that words indicating directions such as top, bottom, left, right, etc. in this specification refer only to the positions of the illustrated structures in the corresponding drawings. Here, the numbers compiled for the parts themselves, e.g. 1st, 2nd, etc., are used only to distinguish the described objects and have no order or technical meaning. Furthermore, the term "connection" or "coupling" as used in the present application includes direct connection and indirect connection, unless otherwise specified.

Example 1
As shown in FIGS. 1 to 4, the dust removal, desulfurization, and denitrification equipment for a thermal power boiler includes a reaction tank 1, which is connected to a boiler smoke pipe, and an atomization pipe 2 is horizontally bored in the reaction tank 1. The atomizing tube 2 is rotatably connected to the reaction tank 1, and the connection positions between the atomizing tube 2 and the reaction tank 1 are all gasket-sealed. The left end of the atomization tube 2 is open and the right end is closed, and a plurality of nozzles 21 are provided alternately along the longitudinal direction on the tube wall of the atomization tube 2, and the nozzles 21 communicate with the atomization tube 2. There is. The left end of the atomizing tube 2 is connected to a desulfurization and denitrification agent mixed liquid attachment bottle via a pipe joint 4, and the right end is connected to a drive motor 3.

Specifically, the left end of the atomization pipe 2 is rotatably connected to the right end of the pipe joint 4, the connection point between the atomization pipe 2 and the pipe joint 4 is sealed by gasket sealing, and the left end of the pipe joint 4 is The high-pressure water pipe is connected to a bottle equipped with a desulfurization and denitrification agent mixture, and the mixed reagent in the bottle equipped with a desulfurization and denitrification agent mixture is discharged from the nozzle 21 through the high-pressure water pipe, and the reaction tank with the desulfurization and denitrification agent and exhaust gas is Achieve contact at 1.

In addition, when the drive motor 3 is energized, the atomizing tube 2 rotates and the desulfurization and denitrification agent is discharged along the nozzle 21, and the discharged desulfurization and denitrification agent forms a fine water column and is sufficiently connected to the exhaust gas. In addition, when the mixture discharged along the nozzle 21 comes into contact with the inner wall of the reaction tank 1, it washes away dust and impurities attached to the inner wall of the reaction tank 1, and removes the long particles attached to the inner wall of the reaction tank 1. It can prevent corrosion to the tank wall over time. This provides not only a desulfurization and denitrification effect but also a dust removal effect.

The reaction tank 1 is arranged horizontally, and an intake pipe 11 is attached to the left end of the reaction tank 1, and an exhaust pipe 12 is attached to the right end. After being processed, it is discharged from the exhaust pipe 12.
The filtration tank is provided at the bottom of the reaction tank 1, and the filtration tank and the reaction tank 1 communicate with each other via a drain pipe 22. Here, the filtration tank includes a rectangular housing 5, a filter plate 54 provided in the housing 5, and a blade unit 6 attached to the housing 5 and in contact with the filter plate 54.
Of these, the filter plate 54 is provided horizontally, and is parallel to the filter plate 54 of the housing 5 and the top and bottom surfaces of the housing 5.

What needs to be explained in particular is that a partition plate 51 is provided in the housing 5, and the partition plate 51 divides the housing 5 into a water storage chamber 52 for storing liquid and a storage chamber 53 for storing impurities. A water inlet communicating with the drain pipe 22 is provided at the top of the vertically divided water storage chamber 52, and the desulfurization and denitrification agent reacts with the exhaust gas and flows into the drain pipe 22 along the bottom of the reaction tank 1, and then, The water enters the water storage chamber 52 and is collected. A slot is provided in the right side wall of the storage chamber 53, a notch 51-1 is provided in the partition plate 51 at a position flush with the slot, and the filter plate 54 is inserted and fitted into the slot and the notch 51-1. The filter plates 54 can be sequentially inserted into the slots and notches 51-1 from right to left. The desulfurization and denitrification agent mixed waste liquid flowing along the drain pipe 22 first enters the water storage chamber 52 through preliminary filtration by the filter plate 54, and impurities in the mixed waste liquid remain in the upper layer of the filter plate 54 and are removed by the blade unit 6. Ru.

Here, as shown in FIG. 4, the blade unit 6 includes a vertically provided blade 61, a horizontally provided top plate 62, and a plurality of tension springs 63. The blade 61 is inserted and fitted into the top wall of the housing 5 , a vertical groove is provided in the top wall of the housing 5 , the blade 61 is slidably fitted into the vertical groove, and the lower end of the blade 61 hits the filter plate 54 . The upper end of the blade 61 is fixedly connected to the top plate 62, and the upper and lower ends of the tension spring 63 are fixedly connected to the top wall of the housing 5 and the top plate 62, respectively.

What needs further explanation is that a discharge port 53-1 is opened at the bottom right side of the storage chamber 53, and by manually pulling the filter plate 54 to the right, impurities on the filter plate 54 pass through the blade 61. As the filter plate 54 is pulled out, the impurities fall into the storage chamber 53 and are taken out through the discharge port 53-1. The tension spring 63 applies a downward tensile force to the top plate 62, passes through the top plate 62, and finally applies pressure to the blade 61, so that the blade 61 comes into close contact with the filter plate 54. Thereby, impurities can be scraped off when the filter plate 54 is pulled out.

Example 2
The differences between this example and Example 1 are as follows:
Further comprising a shoot bar 54-1 and a handle 54-2, the filter plate 54 is fitted into the shoot bar 54-1, and the shoot bar 54-1 is inserted and fitted into the slot and notch 51-1, A handle 54-2 is fixedly connected to the right end of the shoot bar 54-1. This makes it possible to easily attach and pull out the filter plate 54.
The operating principle of this embodiment is basically the same as that of embodiment 1, and the explanation will be omitted here.

Example 3
The differences between this example and Example 1 are as follows:
The pipe joint 4 is a three-way joint, the lower end of the three-way joint communicates with the upper end of the drain pipe 81, and the lower end of the drain pipe 81 connects to the discharge end of the pump 8. The left and right ends of the water suction pipe 82 communicate with the suction end of the pump 8 and the water storage chamber 52, respectively, and a filter lid 7 is provided at one end where the water suction pipe 82 and the water storage chamber 52 communicate with each other. The lid 7 is capable of refiltering the mixed waste liquid in the water storage chamber 52.
Here, the right end of the pipe joint 4 is connected to the left end of the atomization pipe 2, the left end of the pipe joint 4 is connected to a high-pressure water pipe, and the mixed waste liquid that has been filtered twice is extracted by the pump 8 and desulfurized by the drain pipe 81. The denitrifying agent can be replenished into the flow pipe to replenish water, or can be discharged through the atomizing pipe 2 during inspection to clean the inner wall of the reaction tank 1.
The operating principle of this embodiment is basically the same as that of embodiment 1, and the explanation will be omitted here.

In this utility model, the terms "first," "second," and "third" are used only to describe the purpose, and should not be understood as indicating or implying relative importance. Unless clearly and specifically limited, "plurality" means two or more than one. The meanings of terms such as "mounting," "coupling," "connecting," "fixing," etc. should be broadly understood. For example, a "connection" may be a fixed connection, a detachable connection, or an integral connection. "Connection" may be an indirect connection via an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific situation.

The above-mentioned examples are only for explaining the technical concept and features of this utility model, and the purpose is to enable you to familiarize yourself with the contents of this utility model and implement it. The scope of protection of new proposals cannot be limited. Equivalent changes or modifications made based on the spirit and substance of this utility model should be included within the protection scope of this utility model. At present, the technical proposal of this utility model has already undergone intermediate testing, which is a small-scale experiment before large-scale mass production of the product. After the mid-term test was completed, a small scale user survey was conducted, and the survey results showed that user satisfaction was high. We will now begin preparations for industrialization (including early warning surveys of intellectual property rights risks) in preparation for the start of full-scale production of the product.

1 Reaction tank 11 Intake pipe 12 Exhaust pipe 2 Atomization pipe 21 Nozzle 22 Drain pipe 3 Drive motor 4 Pipe joint 5 Housing 51 Partition plate 51-1 Notch 52 Water storage chamber 53 Storage chamber 53-1 Discharge port 54 Filter plate 54- 1 Shoot bar 54-2 Handle 6 Blade unit 61 Blade 62 Top plate 63 Tension spring 7 Filter lid 8 Pump 81 Drain pipe 82 Water suction pipe

Claims (8)

a reaction tank (1);
an atomization pipe (2) bored in the reaction tank (1) and rotatably connected to the reaction tank (1);
a drive motor (3) and a pipe joint (4) respectively provided at both ends of the atomization pipe (2);
a filtration tank provided below the reaction tank (1) and communicating with the reaction tank (1),
An intake pipe (11) and an exhaust pipe (12) communicating with the reaction tank (1) are provided at both ends of the reaction tank (1), respectively.
The pipe joint (4) is rotatably connected to the atomization pipe (2), and a seal ring is provided at the connection point between the pipe joint (4) and the atomization pipe (2),
The filtration tank and the reaction tank (1) are in communication via a drain pipe (22),
A dust removal desulfurization and denitrification device for a thermal power generation boiler, which is characterized by the following. A plurality of nozzles (21) are provided alternately along the longitudinal direction of the atomization pipe (2),
the nozzle (21) communicates with the atomization tube (2);
2. A dust removal, desulfurization and denitrification device for a thermal power generation boiler as claimed in claim 1. The filtration tank includes a rectangular casing (5), a filtration plate (54) provided in the casing (5), and a blade unit (attached to the casing (5) and in contact with the filtration plate (54)). 6) and,
A partition plate (51) is provided in the housing (5) to vertically divide the housing (5) into a water storage chamber (52) for storing liquid and a storage chamber (53) for storing impurities. is,
A water intake port communicating with the drain pipe (22) is provided at the top of the water storage chamber (52),
One side wall of the storage chamber (53) is provided with a slot, the partition plate (51) is provided with a notch (51-1) that is flat with the slot, and the filter plate (54) is provided with a notch (51-1) that is flat with the slot. The filter plate (54) is inserted and fitted into the notch (51-1), and the filter plate (54) is parallel to the upper surface of the housing (5).
The dust removal desulfurization and denitrification device for a thermal power boiler according to claim 1, characterized in that: The blade unit (6) includes a blade (61), a top plate (62), and a tension spring (63),
The blade (61) is inserted into the top wall of the housing (5), the lower end of the blade (61) is in contact with the filter plate (54), and the upper end of the blade (61) is in contact with the top wall of the top plate. (62), and both ends of the tension spring (63) are fixedly connected to the top wall of the housing (5) and the top plate (62), respectively.
The dust removal, desulfurization, and denitration equipment for a thermal power boiler according to claim 3, characterized in that: A discharge port (53-1) is provided on one side of the storage chamber (53).
The dust removal, desulfurization, and denitration equipment for a thermal power boiler according to claim 4, characterized in that: It further includes a shoot bar (54-1) and a handle (54-2), the filter plate (54) is fitted into the shoot bar (54-1), and the shoot bar (54-1) is fitted into the slot. and a notch (51-1), and the handle (54-2) is provided at one end of the shoot bar (54-1).
The dust removal, desulfurization, and denitration equipment for a thermal power boiler according to claim 3, characterized in that: The pipe joint (4) is a three-way joint, and one end of the three-way joint is connected to one end of the drain pipe (81). The other end of the drain pipe (81) communicates with the discharge end of the pump (8), and both ends of the water suction pipe (82) communicate with the suction end of the pump (8) and the water storage chamber (52), respectively. do,
The dust removal desulfurization and denitrification device for a thermal power boiler according to claim 6, characterized in that: A filter lid (7) is provided at one end where the water suction pipe (82) and the water storage chamber (52) communicate with each other.
The dust removal desulfurization and denitrification device for a thermal power boiler according to claim 7, characterized in that:

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