CN212662941U - Solid separator for flue gas - Google Patents

Abstract

A flue gas solid separator belongs to the field of boiler flue gas dust removal. The utility model discloses a pivot, the separation fan, the spiral case, the funnel, the sack cleaner, flue gas air-out pipeline and flue gas inlet line, flue gas inlet line one end and boiler smoke outlet intercommunication installation, the flue gas inlet line other end and spiral case upper end intercommunication installation, flue gas air-out pipeline one end and spiral case intercommunication installation, flue gas air-out pipeline one end and draught fan intercommunication installation, inside the spiral case of pivot fixed mounting, the separation fan passes through the bearing and rotates to be installed in the pivot, flue gas air-out pipeline and flue gas inlet line lower extreme pass through the funnel intercommunication installation, the sack cleaner is installed in flue gas air-out pipeline. The utility model discloses the research and development purpose is because the solid thing is too much in the boiler flue gas in order to solve, causes the local jam of sack cleaner, thereby makes the increase of induced air machine power increase electric energy consumption, reduces sack cleaner life's problem simultaneously, the utility model relates to an ingenious, easy dismounting, low cost are suitable for and use widely.

Description

Solid separator for flue gas

Technical Field

The utility model relates to a solid thing separator of flue gas belongs to boiler flue gas dust removal field.

Background

The boiler inevitably produces dust and flue gas in the in-process that uses, and the dust removal of boiler is exactly that the dust in the boiler is separated from the flue gas to reduce dust pollution and be favorable to further carrying out treatments such as desulfurization, denitration to the flue gas. With the development of society, environmental protection is more and more emphasized by people, and boiler dust removal is also applied to various fields such as thermal power generation and the like.

The dust removing equipment adopted for removing dust in the boiler comprises a mechanical dust remover, a bag-type dust remover, an electric dust remover, a wet dust remover and the like. Mechanical dust collectors are generally devices that use the action of mass forces to separate particulate matter from a gas stream, but they do not remove dust efficiently. The electric dust collector is a dust removing device which makes dust particles charged in the process of separation through a high-voltage electric field and makes the dust particles gathered on a dust collecting plate to separate dust from dust-containing gas under the action of the electric field force, but the device is complex and requires high level of equipment allocation, transportation, installation, maintenance and management. The wet dust collector is a dust collecting equipment which makes dust-containing gas and liquid be in watertight contact, utilizes the inertial collision or chemical action of water drops and particles to collect particles and separates dust from dust-containing gas, but the mud discharged from the wet dust collector needs to be treated, otherwise secondary pollution can be caused.

However, the solid in the boiler flue gas is too much, so that the tail bag-type dust remover is always partially blocked, the power of the induced draft fan is increased, the power consumption is increased, and the service life of the bag is reduced.

Therefore, it is desirable to provide a flue gas solid separator to solve the above technical problems.

SUMMERY OF THE UTILITY MODEL

The utility model discloses research and development purpose is in order to solve because the solid is too much in the boiler flue gas, causes the local jam of sack cleaner, thereby makes the increase of induced air machine power increase electric energy consumption, reduces sack cleaner life's problem simultaneously, has given about in the following the utility model discloses a brief summary to provide about the utility model discloses a basic understanding of some aspects. It should be understood that this summary is not an exhaustive overview of the invention. It is not intended to identify key or critical elements of the invention or to delineate the scope of the invention.

The technical scheme of the utility model:

the solid-matter flue gas separator comprises a rotating shaft, a bearing, a separating fan, a volute, a funnel, a bag-type dust remover, a flue gas air-out pipeline and a flue gas air-in pipeline, one end of the flue gas air-in pipeline is communicated with a flue gas outlet of a boiler and is installed, the other end of the flue gas air-in pipeline is communicated with the upper end of the volute and is installed, one end of the flue gas air-out pipeline is communicated with a draught fan and is installed, the rotating shaft is fixedly installed inside the volute, the separating fan is installed on the rotating shaft through.

Preferably: and a guide plate with an inclination angle alpha is arranged at the joint of the flue gas inlet pipeline and the funnel.

Preferably: the inclination angle α is 35 °.

Preferably: a profiling wall is arranged at the lower end of the volute, and a flue gas circulation channel is formed between the profiling wall and the left side wall of the funnel.

Preferably: the volute lower end is provided with a reinforcing baffle.

Preferably: the tail end of the fan blade of the separating fan is an arc with an angle beta.

Preferably: the radian beta is 60 degrees.

The utility model discloses following beneficial effect has:

1. the flue gas solid-matter separator effectively reduces the particulate matters in the flue gas, reduces the blockage phenomenon of the bag-type dust remover, increases the dust removal efficiency, prolongs the service life of the bag-type dust remover and also reduces the energy consumption of electricity;

2. the flue gas solid-matter separator has simple structure, convenient installation and operation, depends on the gravity of the draught fan, does not need an independent external power supply, and achieves the idea of green environmental protection;

3. the utility model discloses a solid thing separator of flue gas design benefit, easy dismounting, equipment are firm, low cost, are suitable for and use widely.

Drawings

FIG. 1 is a schematic diagram of a flue gas solids separator;

in the figure, 1-a guide plate, 2-a rotating shaft, 3-a profiling wall, 4-a separating fan, 5-a volute, 6-a reinforcing baffle, 7-a funnel, 8-flue gas particles, 9-a bag-type dust remover, 10-a flue gas outlet pipeline, 11-a flue gas inlet pipeline and 41-an arc baffle.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described below with reference to specific embodiments shown in the accompanying drawings. It should be understood that the description is intended to be illustrative only and is not intended to limit the scope of the present invention. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present invention.

The utility model discloses the connection that mentions divide into fixed connection and can dismantle the connection, fixed connection is for the conventional fixed connection mode such as undetachable connection including but not limited to hem connection, rivet connection, adhesive connection and welded connection, can dismantle the connection including but not limited to conventional dismantlement modes such as threaded connection, buckle connection, pin joint and hinged joint, when not clearly prescribing a limit to concrete connection mode, acquiesces to always can find at least one kind of connected mode in current connected mode and can realize this function, and the technical staff in the art can select by oneself as required. For example: the fixed connection selects welding connection, and the detachable connection selects hinge connection.

The first embodiment is as follows: the embodiment is described with reference to fig. 1, the flue gas solid-matter separator of the embodiment includes a rotating shaft 2, a separating fan 4, a volute 5, a funnel 7, a bag-type dust collector 9, a flue gas outlet pipeline 10 and a flue gas inlet pipeline 11, one end of the flue gas inlet pipeline 11 is installed in communication with a flue gas outlet of a boiler, the other end of the flue gas inlet pipeline 11 is installed in communication with the upper end of the volute 5, one end of the flue gas outlet pipeline 10 is installed in communication with an induced draft fan, the rotating shaft 2 is fixedly installed inside the volute 5, the separating fan 4 is installed on the rotating shaft 2 through a bearing, the lower ends of the flue gas outlet pipeline 10 and the flue gas inlet pipeline 11 are installed in communication with the funnel 7, the bag-type dust collector 9 is installed in the flue gas outlet pipeline 10, a, the flue gas granule 8 in the flue gas carries out centrifugal motion and separates to funnel 7 in, concentrates the collection and handles, the effectual sack cleaner jam that has reduced, and separation fan 4 pivoted power derives from the gravitation that the draught fan attracted the flue gas, need not provide power to separation fan 4 external power supply motor alone.

The second embodiment is as follows: the embodiment is described with reference to fig. 1, in the flue gas solid-matter separator of the embodiment, a guide plate 1 with an inclination angle α is arranged at the joint of the flue gas inlet duct 11 and the funnel 7, the inclination angle α is 35 °, and the guide plate 1 has a flow guiding effect on flue gas particles 8 entering from a flue gas outlet of the boiler, so as to prevent the separation fan 4 from reversing and effectively enter the volute 5.

The third concrete implementation mode: the embodiment is described with reference to fig. 1, in the flue gas solid-matter separator of the embodiment, the reinforcing baffle 6 is arranged at the lower end of the volute 5, and the reinforcing baffle 6 can guide flue gas pumped by the induced draft fan while reinforcing the structure of the volute 5 to meet the requirement, so that the flue gas centrifugally treated by the separation fan 4 can smoothly enter the bag-type dust collector 9.

The fourth concrete implementation mode: referring to fig. 1, in the flue gas solid-solid separator of the present embodiment, the arc baffle 41 is arranged at the end of the fan blade of the separation fan 4, the radian of the arc baffle 41 is β, the radian β is 60 °, and the end of the fan blade of the separation fan 4 is arranged as the arc baffle 41, so that the base area of the fan blade and the flue gas is increased, and the separation efficiency of the flue gas particles 8 is improved.

The fifth concrete implementation mode: the present embodiment is described with reference to fig. 1, and the operation principle of the flue gas solid-matter separator of the present embodiment is as follows:

utilize the traction force of draught fan, make spiral case 5, the interior negative pressure flue gas of flue gas air-out pipeline 10 and flue gas air-supply line 11 draws in the solid thing separator of flue gas 4 rotatory, in order not to cause separation fan 4 to reverse, install inclined guide plate 1 additional at flue gas air-supply line 11 and funnel 7 junction, the flabellum end of separation fan 4 sets to circular-arcly simultaneously, the flue gas forms the refraction through inclined guide plate 1 and flows, the flabellum is blown to the mobile flue gas and makes separation fan 4 rotate, the flue gas can form centrifugal force in spiral case 5 rotatory flow, 8 separation of granule in the flue gas, spiral case 5 can the separation flue gas, thereby make solid thing granule 8 reduce speed after the separation flow into in the funnel 7.

It should be noted that, in the above embodiments, as long as the technical solutions can be aligned and combined without contradiction, those skilled in the art can exhaust all possibilities according to the mathematical knowledge of the alignment and combination, and therefore the present invention does not describe the technical solutions after alignment and combination one by one, but it should be understood that the technical solutions after alignment and combination have been disclosed by the present invention.

This embodiment is only illustrative of the patent and does not limit the scope of protection thereof, and those skilled in the art can make modifications to its part without departing from the spirit of the patent.

Claims (7)

1. The solid thing separator of flue gas, its characterized in that: including pivot (2), separation fan (4), spiral case (5), funnel (7), sack cleaner (9), flue gas air-out pipeline (10) and flue gas intake pipe (11), flue gas intake pipe (11) one end and boiler flue gas export intercommunication installation, flue gas intake pipe (11) other end and spiral case (5) upper end intercommunication installation, flue gas air-out pipeline (10) one end and spiral case (5) intercommunication installation, flue gas air-out pipeline (10) one end and draught fan intercommunication installation, pivot (2) fixed mounting spiral case (5) are inside, separation fan (4) are installed on pivot (2) through bearing rotation, flue gas air-out pipeline (10) and flue gas intake pipe (11) lower extreme pass through funnel (7) intercommunication installation, sack cleaner (9) are installed in flue gas air-out pipeline (10).

2. The flue gas solid-matter separator of claim 1, wherein: a guide plate (1) with an inclination angle alpha is arranged at the joint of the flue gas inlet pipeline (11) and the funnel (7).

3. The flue gas solid-matter separator of claim 2, wherein: the inclination angle α is 35 °.

4. The flue gas solid-matter separator of claim 1, wherein: a profiling wall (3) is arranged at the lower end of the volute (5), and a flue gas circulation channel is formed between the profiling wall (3) and the left side wall of the funnel (7).

5. The flue gas solid-matter separator of claim 1, wherein: and a reinforcing baffle (6) is arranged at the lower end of the volute (5).

6. The flue gas solid-matter separator of claim 1, wherein: the fan blade tail end of the separation fan (4) is provided with an arc baffle (41), and the radian of the arc baffle (41) is beta.

7. The flue gas solid-matter separator of claim 6, wherein: the radian beta is 60 degrees.

Images