CN219258580U

CN219258580U - Boiler bed charge screening and adding device

Info

Publication number: CN219258580U
Application number: CN202223274270.0U
Authority: CN
Inventors: 郑钢; 梅林�; 丁春伟; 丁俐强
Original assignee: Sichuan Langjiu Co ltd; Sichuan Guoneng Power Environmental Protection Equipment Manufacturing Co ltd
Current assignee: Sichuan Langjiu Co ltd; Sichuan Guoneng Power Environmental Protection Equipment Manufacturing Co ltd
Priority date: 2022-12-07
Filing date: 2022-12-07
Publication date: 2023-06-27
Anticipated expiration: 2032-12-07

Abstract

The utility model relates to the technical field of boiler bed charge treatment, in particular to a boiler bed charge screening and adding device, which comprises a supporting rod, wherein the top of the supporting rod is fixedly connected with a feeding barrel, the inner wall of the feeding barrel is fixedly connected with a driving wheel, the outer wall of the driving wheel is movably connected with a conveying belt, the top of the feeding barrel is fixedly connected with a dust collecting pipe, the improved screening and adding device is provided with a bin pump which adopts a high ash-gas ratio and a lower conveying speed, the abrasion of a pipeline, a valve and the like is greatly reduced, a belt transmission structure is formed between the driving wheel and the conveying belt to lift and convey the boiler bed charge, the boiler bed charge is conveyed into the device for screening treatment, the top of a distributing bin is provided with an ash removing opening to enable the top dust in the distributing bin to be collected and treated, the dust in the bottom of the distributing bin is prevented from entering a workshop to pollute the working environment when the bottom of the distributing bin is discharged, the fixed screen is in a tubular grid structure for screening treatment of the boiler bed charge, and the structure is simple in structure and convenient to install and later maintenance.

Description

Boiler bed charge screening and adding device

Technical Field

The utility model relates to the technical field of boiler bed charge treatment, in particular to a boiler bed charge screening and adding device.

Background

The utility boiler is also called as a power plant boiler, which is a medium-sized and large-sized boiler for providing specified quantity and quality steam for a steam turbine in a power plant, one of main thermal equipment of the thermal power plant is matched with a steam turbine generator set with a certain capacity, and is mainly used for generating electricity, but can also be used for external heat supply under certain special occasions, the evaporation capacity is generally large, the steam parameters (steam temperature and steam pressure) are very high, a complete set of auxiliary equipment is needed, a chamber combustion hearth is needed, various fuels (pulverized coal, crude oil or heavy oil, blast furnace gas or coke oven gas) are combustible in a forced ventilation mode, the structure is relatively complex, the efficiency is relatively high, the efficiency can reach about 85-93%, a great amount of ash and slag are generated in the boiler after the fuel is combusted, after the boiler is shut down, the boiler is in accordance with operation rules, the material (bed charge) in the boiler hearth is required to be discharged, the ash and the ash is added again, and in order to ensure the normal operation and good use state of the boiler, and the power plant is provided with a sieving device.

The inventors found that the following problems exist in the prior art in the process of implementing the present utility model: when the materials are discharged and screened, the site dust is diffused and pollutes the environment, meanwhile, the labor intensity of operation operators is high, the efficiency is low, and the screened large-particle base materials also need to be transported and disposed again.

Disclosure of Invention

The utility model aims to provide a boiler bed charge screening and adding device so as to solve the problems of high labor intensity and low efficiency of operation operators while polluting the environment in the prior art. In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a boiler bed charge screening adds device, includes the bracing piece, the top fixedly connected with feed cylinder of bracing piece, the inner wall fixedly connected with action wheel of feed cylinder, the outer wall swing joint of action wheel has the transmission band, the top fixedly connected with dust collecting tube of feed cylinder, the one end fixedly connected with storehouse top dust remover of dust collecting tube, the bottom fixedly connected with feed bin of storehouse top dust remover, the inner wall of feed bin is fixedly connected with fixed screen and baffle box respectively, one side fixedly connected with conveying pipeline of feed bin, the one end fixedly connected with storehouse pump of conveying pipeline, the bottom fixedly connected with feed back pipe of storehouse pump, the middle part fixedly connected with feed back valve of feed back pipe, the one end fixedly connected with air pump of feed back pipe.

Further preferably, the bin pump comprises a raw material bin fixedly connected with one end of a material conveying pipe, a feed valve is fixedly connected with the bottom of the raw material bin, a discharge bin is fixedly connected with the bottom of the feed valve, and an exhaust valve is fixedly connected with the outer wall of the discharge bin.

Further preferably, a belt transmission structure is formed between the driving wheel and the transmission belt.

Further preferably, the top of the distributing bin is provided with an ash removal port matched with the bottom of the bin top dust remover.

Further preferably, the fixed screen is a tubular mesh structure.

Further preferably, the guide chute and the inner wall of the distribution bin form a conical bottom bin.

Compared with the prior art, the utility model has the beneficial effects that:

according to the utility model, the bin pump adopts high ash-gas ratio and lower conveying speed, so that abrasion of pipelines, valves and the like is greatly reduced, the service life of the device is prolonged, and a belt transmission structure is formed between the driving wheel and the conveying belt to lift and convey the boiler bed charge, so that the boiler bed charge is conveyed into the device for screening treatment.

According to the utility model, the top dust removing port matched with the bottom of the bin top dust remover is formed in the top of the distribution bin, so that the top dust in the distribution bin is collected and treated, the pollution of working environment caused by dust entering a workshop when the bottom of the distribution bin is discharged is avoided, the fixed screen is of a tubular grid structure and is used for screening the boiler bottom materials, the structure is simple, the installation is convenient, the later maintenance is convenient, the conical bottom material bin is formed by the guide chute and the inner wall of the distribution bin, the screened bottom materials are convenient to collect and transport, and the residue in the bin is avoided.

Drawings

FIG. 1 is a schematic elevational view in full section of the present utility model;

FIG. 2 is an enlarged schematic view of the structure of the utility model at A in FIG. 1;

fig. 3 is an enlarged schematic view of the structure of fig. 1 at B according to the present utility model.

In the figure: 1. a support rod; 2. a feed cylinder; 3. a driving wheel; 4. a transmission belt; 5. a dust collecting pipe; 6. a dust remover at the top of the bin; 7. a material distributing bin; 8. a fixed screen; 9. a guide groove; 10. a material conveying pipe; 11. a bin pump; 1101. a raw material bin; 1102. a feed valve; 1103. discharging bin; 1104. an exhaust valve; 12. a feed back pipe; 13. a feed back valve; 14. an air pump.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which are obtained by a worker of ordinary skill in the art without creative efforts, are within the protection scope of the present utility model based on the embodiments of the present utility model.

Referring to fig. 1 to 3, the present utility model provides a technical solution: the utility model provides a boiler bed charge screening adds device, including bracing piece 1, the top fixedly connected with feed cylinder 2 of bracing piece 1, the inner wall fixedly connected with action wheel 3 of feed cylinder 2, the outer wall swing joint of action wheel 3 has conveyer belt 4, the top fixedly connected with dust collecting tube 5 of feed cylinder 2, the one end fixedly connected with storehouse top dust remover 6 of dust collecting tube 5, the bottom fixedly connected with of storehouse top dust remover 6 divides feed bin 7, the inner wall of dividing feed bin 7 respectively fixedly connected with fixed screen 8 and baffle box 9, one side fixedly connected with conveying pipeline 10 of dividing feed bin 7, the one end fixedly connected with storehouse pump 11 of conveying pipeline 10, the bottom fixedly connected with feed back pipe 12 of storehouse pump 11, the middle part fixedly connected with feed back valve 13 of feed back pipe 12, the one end fixedly connected with air pump 14 of feed back pipe 12.

In this embodiment, as shown in fig. 3, the bin pump 11 includes a material conveying pipe 10, wherein one end of the material conveying pipe 10 is fixedly connected with a material bin 1101, the bottom of the material bin 1101 is fixedly connected with a feeding valve 1102, the bottom of the feeding valve 1102 is fixedly connected with a material discharging bin 1103, and the outer wall of the material discharging bin 1103 is fixedly connected with an air discharging valve 1104; the high ash-gas ratio and the low conveying speed are adopted by the bin pump 11, so that the abrasion of pipelines, valves and the like is greatly reduced, and the service life of the device is prolonged.

In this embodiment, as shown in fig. 2, a belt transmission structure is formed between the driving wheel 3 and the transmission belt 4; the boiler bottom material is lifted and conveyed by a belt transmission structure formed between the driving wheel 3 and the conveying belt 4, so that the boiler bottom material is conveyed into the device for screening treatment.

In the embodiment, as shown in fig. 1, the top of the distributing bin 7 is provided with an ash removal port which is matched with the bottom of the bin top dust remover 6; it should be noted that, the top through dividing the feed bin 7 is offered and is had the dust removal mouth with the bottom looks adaptation of storehouse top dust remover 6 so that the top raise dust in dividing the feed bin 7 is collected and is handled, and the dust gets into the workshop when avoiding dividing the feed bin 7 bottom to unload and causes operational environment pollution.

In this embodiment, as shown in fig. 1, the fixed screen 8 has a tubular mesh structure; it should be noted that, the fixed screen 8 is a tubular grid structure to screen the boiler bed charge, and the structure is simple and the installation is convenient, and the later maintenance is convenient.

In the embodiment, as shown in fig. 1, a conical bottom bin is formed by a guide chute 9 and the inner wall of a distribution bin 7; it is to be noted that, through the conical bottom stock bin of baffle box 9 and the inner wall constitution of dividing stock bin 7, make the bed charge after the screening be convenient for collect and the transmission, avoided remaining in the storehouse.

The application method and the advantages of the utility model are as follows: when the boiler bed charge screening and adding device is used, the working process is as follows:

as shown in fig. 1, 2 and 3, firstly, boiler bottom materials are conveyed into a distributing bin 7 through a conveying belt 4, a bin top dust remover 6 is started, dust in the bottom materials is collected by the bin top dust remover 6 through a dust collecting pipe 5, the bottom materials fall into a fixed screen 8 and are screened, slag materials fall into the bottom of the distributing bin 7 to wait for transportation, the filtered bottom materials are input into a raw material bin 1101 after being conveyed into a discharging bin 1103 through a material guide groove 9, a feeding valve 1102 is opened, the bottom materials enter the discharging bin 1103 from the raw material bin 1101, after the discharging bin 1103 is full, the feeding valve 1102 is closed, an air pump 14 is opened, and the bottom materials are conveyed into #1 and #2 boilers through a material return pipe 12 by the air pump 14.

The foregoing has shown and described the basic principles, principal features and advantages of the utility model. It will be understood by those skilled in the art that the present utility model is not limited to the above-described embodiments, and that the above-described embodiments and descriptions are only preferred embodiments of the present utility model, and are not intended to limit the utility model, and that various changes and modifications may be made therein without departing from the spirit and scope of the utility model as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. Boiler bed charge screening adds device, including bracing piece (1), its characterized in that: the top fixedly connected with feed cylinder (2) of bracing piece (1), the inner wall fixedly connected with action wheel (3) of feed cylinder (2), the outer wall swing joint of action wheel (3) has transmission band (4), the top fixedly connected with dust collecting tube (5) of feed cylinder (2), the one end fixedly connected with storehouse top dust remover (6) of dust collecting tube (5), the bottom fixedly connected with of storehouse top dust remover (6) divides feed bin (7), the inner wall of dividing feed bin (7) is fixedly connected with fixed screen (8) and baffle box (9) respectively, one side fixedly connected with conveying pipeline (10) of dividing feed bin (7), the one end fixedly connected with storehouse pump (11) of conveying pipeline (10), the bottom fixedly connected with feed back pipe (12) of storehouse pump (11), the middle part fixedly connected with feed back valve (13) of feed back pipe (12), the one end fixedly connected with air pump (14) of feed back pipe (12).

2. The boiler bed charge screening and adding device according to claim 1, wherein: the bin pump (11) comprises a raw material bin (1101) fixedly connected with one end of a conveying pipe (10), a feed valve (1102) is fixedly connected with the bottom of the raw material bin (1101), a discharge bin (1103) is fixedly connected with the bottom of the feed valve (1102), and an exhaust valve (1104) is fixedly connected with the outer wall of the discharge bin (1103).

3. The boiler bed charge screening and adding device according to claim 1, wherein: a belt transmission structure is formed between the driving wheel (3) and the transmission belt (4).

4. The boiler bed charge screening and adding device according to claim 1, wherein: the top of the distributing bin (7) is provided with an ash removal port which is matched with the bottom of the bin top dust remover (6).

5. The boiler bed charge screening and adding device according to claim 1, wherein: the fixed screen (8) is of a tubular grid structure.

6. The boiler bed charge screening and adding device according to claim 1, wherein: the guide chute (9) and the inner wall of the distributing bin (7) form a conical bottom bin.