CN211358353U

CN211358353U - Polymer denitration device for boiler

Info

Publication number: CN211358353U
Application number: CN201922372146.XU
Authority: CN
Inventors: 洪德有; 洪德贵; 洪德富; 孙鸣春
Original assignee: Heilongjiang Wandefer Environmental Technology Co ltd
Current assignee: Heilongjiang Wandefer Environmental Technology Co ltd
Priority date: 2019-12-26
Filing date: 2019-12-26
Publication date: 2020-08-28
Anticipated expiration: 2029-12-26

Abstract

The utility model discloses a polymer denitration device for boiler, including electrical control cabinet, roots fan motor, roots fan, first pipeline, second pipeline, venturi, sack cleaner, surge tank, turbine fan, draught fan pipeline, storage silo, mixer, feed inlet, rotatory glassware, discharge gate, inverter motor, fan base, motor base down, the utility model discloses simple structure, the construction installation of being convenient for, low cost is applicable to the multiple boiler condition, under minimum manpower and materials drop into, reaches the denitration effect of ideal, and built-in sack cleaner prevents that solid material from raising dust pollutes, and the on-the-spot maintenance is convenient, and the feed is stabilized there is not differential pressure backward flow phenomenon.

Description

Polymer denitration device for boiler

Technical Field

The utility model relates to a denitration technology field specifically is a polymer denitration device for boiler.

Background

The boiler is an energy conversion device, the energy input to the boiler comprises chemical energy and electric energy in fuel, and the boiler outputs steam, high-temperature water or an organic heat carrier with certain heat energy. The boiler is a water container heated on fire, a furnace is a place where fuel is combusted, and the boiler comprises a boiler and a furnace. The hot water or steam generated in the boiler can directly provide heat energy for industrial production and people life, and can also be converted into mechanical energy through a steam power device, or the mechanical energy is converted into electric energy through a generator. The boiler for providing hot water is called a hot water boiler and is mainly used for life, the boiler is simultaneously carried out on a boiler and a furnace, and after water enters the boiler, the boiler heating surface in a steam-water system transfers absorbed heat to the water, so that the water is heated into hot water with certain temperature and pressure or generated steam, and the hot water or the generated steam is led out for application. In the combustion equipment part, fuel is combusted to continuously release heat, high-temperature flue gas generated by combustion transfers the heat to a boiler heating surface through heat propagation, the temperature of the high-temperature flue gas is gradually reduced, and the high-temperature flue gas is finally discharged from a chimney.

Flue gas is a mixture of gas and smoke dust and is the main cause of atmospheric pollution in residential areas. The components of the flue gas are complex, the gas comprises water vapor, sulfur dioxide, nitrogen, oxygen, carbon monoxide, carbon dioxide, hydrocarbons, nitrogen oxides and the like, and the smoke comprises ash, coal particles, oil drops, high-temperature cracking products and the like of the fuel, so that the environment is seriously polluted and the human health is influenced. Industrial fumes emitted by various production enterprises are an important source of atmospheric pollutants. If a large amount of industrial flue gas is discharged into the atmosphere after reaching the standard without being treated, the quality of the atmospheric environment is inevitably reduced, serious harm is brought to the human health, and huge loss is caused to national economy. After toxic and harmful substances in industrial smoke enter a human body through respiratory tract and skin, the long-term low-concentration or short-term high-concentration contact can cause temporary and permanent pathological changes of systems and organs such as breath, blood, liver and the like of the human body, and particularly benzopyrene polycyclic aromatic hydrocarbons can directly cause carcinogenesis of the human body to draw high attention to human beings. Industrial fumes include organic and inorganic waste gases. The organic waste gas mainly comprises various hydrocarbons, alcohols, aldehydes, acids, ketones, amines and the like; the inorganic exhaust gas mainly includes sulfur oxides, nitrogen oxides, carbon oxides, halogens and compounds thereof, and the like.

At present, most of smoke generated by domestic boilers is directly discharged into the atmosphere without being treated, the smoke cannot reach the boiler waste gas discharge standard regulated by the state, the atmospheric environment is seriously polluted, the smoke is directly discharged, great energy waste is caused, the harmony of the environment is also damaged, the smoke is directly discharged into the atmosphere to cause serious environmental pollution, the denitration technology is an environment-friendly technical means universal for construction and operation of a power plant, and excessive NOx in the smoke can be effectively removed. The current denitration technology commonly used in China comprises an SCR (selective catalytic reduction) method and an SNCR (selective non-catalytic reduction) method, wherein the SNCR method is simple, the denitration efficiency is low, the increasingly strict environmental protection requirements cannot be met, the SCR denitration efficiency is high, but the process is complex, and particularly, the low-temperature SCR catalyst is high in price, short in service life and high in operation and maintenance cost. Particularly, in a biomass power plant, the flue gas contains a large amount of alkali metals such as K, Na, which easily causes the poisoning of an SCR catalyst, and the denitration becomes a bottleneck in the purification of the biomass flue gas. The polymer denitration technology (PNCR) is developed on the basis of SNCR, and the core of the technology is a polymer denitration agent which takes a polymer material as a carrier and carries an amino component on the polymer material in a polymerization manner to form a powdery material. The powder material is sprayed into a hearth, the spraying temperature window is 800-900 ℃, the chemical bond connecting amino and high polymer is broken at high temperature, a large amount of functional groups containing amino are released, the amino reacts with NOx in flue gas, and the aim of efficiently removing NOx is fulfilled. Because polymer denitrifier is dry powdered, the denitrifier that transports to the power plant is 50 kilograms/package's material package usually, and in prior art, the material package needs to hang through electronic single track and send to the powder storehouse of about 9 meters eminences, and the powder storehouse unloading is followed and is spouted into the furnace in the fan air conveying and react. In traditional material transportation process, polymer denitration agent material package is directly grabbed through single track crane grab bucket and is put to powder storehouse entrance, need artifical bale breaking back to throw into in the powder storehouse, the material package is grabbed and is put and the bale breaking process all operates in the high altitude, leads to the dust diffusion to form environmental pollution, consequently, is necessary to provide a novel polymer denitration device to solve above-mentioned problem.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a polymer denitration device for boiler solves the problem that denitration device structure is complicated among the prior art, dust raise dust, the utility model discloses simple structure, the construction installation of being convenient for, low cost is applicable to the multiple boiler condition, and under minimum manpower and materials drop into, reach the denitration effect of ideal, built-in sack cleaner prevents solid material raise dust pollution, and the on-the-spot maintenance is convenient, and the feed is stable does not have differential pressure backward flow phenomenon.

The utility model adopts the technical proposal that: a high polymer denitration device for a boiler comprises an electrical control cabinet, a Roots blower motor, a Roots blower, a first pipeline, a second pipeline, a Venturi tube, a bag-type dust remover, a pressure stabilizing tank, a turbine blower, an induced draft fan pipeline, a storage bin, a stirrer, a feed inlet, a rotary discharger, a discharge outlet, a variable frequency motor, a blower base and a motor base, wherein the Roots blower motor is arranged at the left end of the high polymer denitration device, the Roots blower is arranged on the right side of the Roots blower motor and connected with the Roots blower motor through a belt, the top of the Roots blower is provided with the first pipeline which is communicated with the first pipeline, the top of the first pipeline is provided with a pressure gauge, the right side of the first pipeline is provided with a flexible connection, the right side of the flexible connection is provided with the second pipeline, the turbine blower is arranged at the connection part of the, sack cleaner top and draught fan pipeline intercommunication, draught fan pipeline bottom be connected with turbofan, sack cleaner top right side and storage silo intercommunication, second pipeline top be provided with the surge tank, right side and venturi intercommunication, the venturi top be provided with rotatory glassware down, the right side is provided with the discharge gate, rotatory glassware top down be provided with the storage silo, communicate with the storage silo, the storage silo top be provided with the mixer, the top left side is connected with the sack cleaner, the upper right side is provided with the feed inlet, the mixer setting in the feed inlet top.

The rotary feeder is connected with a variable frequency motor through a belt, and the variable frequency motor is arranged on a motor base.

The Roots blower motor and the Roots blower are arranged on the blower base.

And the input ends of the Roots blower motor, the Roots blower, the turbine blower, the bag-type dust collector, the variable frequency motor and the stirrer are respectively and electrically connected with the output end of the electrical control cabinet.

Advantageous effects

The utility model provides a polymer denitration device for boiler, including electrical control cabinet, roots fan motor, roots fan, first pipeline, second pipeline, venturi, sack cleaner, surge tank, turbine fan, draught fan pipeline, storage silo, mixer, feed inlet, rotatory glassware, discharge gate, inverter motor, fan base, motor base down, the utility model discloses simple structure, the construction installation of being convenient for, low cost is applicable to the multiple boiler condition, under minimum manpower and materials drop into, reaches the denitration effect of ideal, and built-in sack cleaner prevents that solid material from raising dust pollutes, and the on-the-spot maintenance is convenient, and the feed is stabilized there is not differential pressure backward flow phenomenon.

To more clearly illustrate the structural features and effects of the present invention, the following detailed description is given with reference to the accompanying drawings and specific embodiments.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive labor.

Fig. 1 is a schematic view of the overall structure of the present invention;

fig. 2 is a schematic front view of the overall structure of the present invention.

Reference numerals

1. Electric control cabinet, 2, roots's fan motor, 3, roots's fan, 4, first pipeline, 5, second pipeline, 6, venturi, 7, sack cleaner, 8, surge tank, 9, turbo fan, 10, draught fan pipeline, 11, storage silo, 12, mixer, 13, feed inlet, 14, rotatory glassware down, 15, discharge gate, 16, inverter motor.

Detailed Description

Example 1

As shown in figures 1 and 2, a polymer denitration device for a boiler comprises an electrical control cabinet 1, a Roots blower motor 2, a Roots blower 3, a first pipeline 4, a second pipeline 5, a Venturi tube 6, a bag-type dust collector 7, a pressure stabilizing tank 8, a turbine blower 9, an induced draft fan pipeline 10, a storage bin 11, a stirrer 12, a feed inlet 13, a rotary discharger 14, a discharge outlet 15, a variable frequency motor 16, a blower base and a motor base, wherein the Roots blower motor 2 is arranged at the left end of the polymer denitration device, the Roots blower 3 is arranged at the right side of the Roots blower motor 2 and is connected with the Roots blower motor 2 through a belt, the first pipeline 4 is arranged at the top of the Roots blower 3 and is communicated with the first pipeline 4, a pressure gauge is arranged at the top of the first pipeline 4, a flexible connection is arranged at the right side of the first pipeline 4, the second pipeline 5, second pipeline 5 and flexible coupling department be provided with turbofan 9, turbofan 9 top be provided with sack cleaner 7, 7 tops of sack cleaner and draught fan pipeline 10 intercommunication, draught fan pipeline 10 bottom be connected with turbofan 9, 7 top right sides of sack cleaner and storage silo 11 intercommunication, 5 tops of second pipeline be provided with surge tank 8, right side and venturi 6 intercommunication, 6 tops of venturi be provided with rotatory glassware 14 down, the right side is provided with discharge gate 15, rotatory glassware 14 top down be provided with storage silo 11, with storage silo 11 intercommunication, storage silo 11 top be provided with mixer 12, the top left side is connected with sack cleaner 7, the upper right side is provided with feed inlet 13, mixer 12 set up in feed inlet 13 top.

Example 2

As shown in fig. 1 and 2, the rotary feeder 14 is connected to a variable frequency motor 16 through a belt, and the variable frequency motor 16 is disposed on a motor base.

Example 3

As shown in fig. 1 and 2, the roots blower motor 2 and the roots blower 3 are both arranged on the blower base.

Example 4

As shown in fig. 1 and fig. 2, the input ends of the roots blower motor 2, the roots blower 3, the turbine blower 9, the bag-type dust collector 7, the variable frequency motor 16 and the stirrer 12 are respectively electrically connected with the output end of the electrical control cabinet 1.

The working principle is as follows:

as shown in figures 1 and 2, a polymer denitration device for a boiler comprises an electrical control cabinet 1, a Roots blower motor 2, a Roots blower 3, a first pipeline 4, a second pipeline 5, a Venturi tube 6, a bag-type dust collector 7, a pressure stabilizing tank 8, a turbine blower 9, an induced draft fan pipeline 10, a storage bin 11, a stirrer 12, a feed inlet 13, a rotary discharger 14, a discharge outlet 15, a variable frequency motor 16, a blower base and a motor base, wherein the Roots blower motor 2 is arranged at the left end of the polymer denitration device, the Roots blower 3 is arranged at the right side of the Roots blower motor 2 and is connected with the Roots blower motor 2 through a belt, the Roots blower 3 blows air to provide discharge power, the first pipeline 4 is arranged at the top of the Roots blower 3 and is communicated with the first pipeline 4, a pressure gauge is arranged at the top of the first pipeline 4, and a soft connection is, a second pipeline 5 is arranged on the right side of the flexible connection, a turbine fan 9 is arranged at the connection position of the second pipeline 5 and the flexible connection, a bag-type dust remover 7 is arranged above the turbine fan 9, the top of the bag-type dust remover 7 is communicated with a draught fan pipeline 10, the bottom of the draught fan pipeline 10 is connected with the turbine fan 9, the turbine fan 9 provides dust removal power for the bag-type dust remover 7 and provides power for feeding, the right side above the bag-type dust remover 7 is communicated with a storage bin 11, a pressure stabilizing tank 8 is arranged on the top of the second pipeline 5, and the pressure stabilizing tank 8 is used for stabilizing air pressure and preventing backflow; the right side of the Venturi tube 6 is communicated with the Venturi tube 6, a rotary feeder 14 is arranged at the top of the Venturi tube 6, a discharge hole 15 is formed in the right side of the Venturi tube, a storage bin 11 is arranged above the rotary feeder 14 and communicated with the storage bin 11, a stirrer 12 is arranged at the top of the storage bin 11, the stirrer 12 prevents fixed materials from being blocked, continuous feeding is achieved, the left side of the top of the rotary feeder is connected with a bag-type dust collector 7, a feed hole 13 is formed in the upper right side of the top of the rotary feeder, and dust in the materials is collected into the bag-type dust collector; the stirrer 12 is arranged above the feeding hole 13. The rotary blanking device 14 is connected with a variable frequency motor 16 through a belt, and the variable frequency motor 16 is arranged on a motor base. The Roots blower motor 2 and the Roots blower 3 are both arranged on the blower base. The input ends of the Roots blower motor 2, the Roots blower 3, the turbine blower 9, the bag-type dust collector 7, the variable frequency motor 16 and the stirrer 12 are respectively and electrically connected with the output end of the electric control cabinet 1.

The using method comprises the following steps: feeding: the solid materials are placed at a feeding hole 13, a turbofan 9 is started, air of the turbofan 9 is blown along an induced draft fan pipeline 10, the solid materials are sucked into a storage bin 11 through the storage bin 11 by a bag-type dust collector 7, a stirrer 12 is started to stir the solid materials, so that the solid materials are prevented from being blocked, the continuous feeding is realized, and the bag-type dust collector 7 collects dust in the materials into the bag-type dust collector 7 under the action of the air of the turbofan 9 so as to prevent the solid materials from flying and polluting;

discharging: in solid material got into storage silo 11, inverter motor 16 passed through the belt and drives rotatory glassware 14 down, storage silo 11 was through rotatory glassware 14 down, with the solid material in the storage silo 11 down in venturi 6, open roots's fan 3, roots's fan motor 2 drives roots's fan 3 through the belt, through roots's fan 3's the big amount of wind, again through surge tank 8 steady atmospheric pressure, blow off the solid material in venturi 6 from discharge gate 15 and get into in the boiler.

Roots fan motor 2, roots fan 3, turbofan 9, sack cleaner 7, inverter motor 16, mixer 12 pass through 1 control operation of electrical control cabinet, make things convenient for personnel's operation, reduce the manpower, the utility model discloses simple structure, the construction installation of being convenient for, low cost is applicable to the multiple boiler condition, and under minimum manpower and materials drop into, reach the denitration effect of ideal, built-in sack cleaner 7 prevents solid material raise dust pollution, and the field maintenance is convenient, and the feed is stabilized there is not differential pressure backward flow phenomenon.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. The utility model provides a polymer denitration device for boiler which characterized in that: comprises an electrical control cabinet, a Roots blower motor, a Roots blower, a first pipeline, a second pipeline, a Venturi tube, a bag-type dust collector, a pressure stabilizing tank, a turbo-blower, an induced draft fan pipeline, a storage bin, a stirrer, a feed inlet, a rotary discharger, a discharge outlet, a variable frequency motor, a blower base and a motor base, wherein the Roots blower motor is arranged at the left end of a high-molecular denitration device, the Roots blower is arranged at the right side of the Roots blower motor and is connected with the Roots blower motor through a belt, the top of the Roots blower is provided with a first pipeline which is communicated with the first pipeline, the top of the first pipeline is provided with a pressure gauge, the right side of the first pipeline is provided with a flexible connection, the right side of the flexible connection is provided with a second pipeline, the turbo-blower is arranged at the joint of the second pipeline and the soft connection, draught fan pipeline bottom be connected with turbofan, sack cleaner top right side and storage silo intercommunication, second pipeline top be provided with the surge tank, right side and venturi intercommunication, the venturi top be provided with rotatory glassware down, the right side is provided with the discharge gate, rotatory glassware top down be provided with the storage silo, with the storage silo intercommunication, storage silo top be provided with the mixer, the top left side is connected with the sack cleaner, the upper right side is provided with the feed inlet, the mixer setting in the feed inlet top.

2. The polymer denitration device for the boiler according to claim 1, characterized in that: the rotary feeder is connected with a variable frequency motor through a belt, and the variable frequency motor is arranged on a motor base.

3. The polymer denitration device for the boiler according to claim 1, characterized in that: the Roots blower motor and the Roots blower are arranged on the blower base.

4. The polymer denitration device for the boiler according to claim 1, characterized in that: and the input ends of the Roots blower motor, the Roots blower, the turbine blower, the bag-type dust collector, the variable frequency motor and the stirrer are respectively and electrically connected with the output end of the electrical control cabinet.