CN210346247U

CN210346247U - Energy-saving smoke device of drying equipment

Info

Publication number: CN210346247U
Application number: CN201921320456.0U
Authority: CN
Inventors: 欧冶金; 程松; 胡安祥
Original assignee: Hubei Dongsheng Tianlong Energy Saving Technology Co ltd
Current assignee: Hubei Dongsheng Tianlong Energy Saving Technology Co ltd
Priority date: 2019-08-15
Filing date: 2019-08-15
Publication date: 2020-04-17
Anticipated expiration: 2029-08-15

Abstract

The utility model relates to an energy-conserving fume device of drying equipment. The device includes hot-blast furnace, mill, dust collector, draught fan and tail gas processing apparatus, and hot-blast furnace and mill intercommunication lead to in to the mill hot-blast, and the pipeline between hot-blast furnace and the mill still communicates with the atmosphere pipeline, and the air outlet and the dust collector of mill are connected, and the draught fan setting is on the pipeline between dust collector and the tail gas processing apparatus, and the pipeline between draught fan and the tail gas processing apparatus still communicates through the air intake of circulating pipe two and hot-blast furnace. The device realizes energy conservation and emission reduction through cyclic utilization of the tail gas, the utilization rate of the waste gas can reach 80 percent, the tail gas treatment cost is reduced, the heat energy of the tail gas and combustible gas contained in the tail gas are reasonably utilized, and the fuel consumption of the hot blast stove during heat supply is reduced.

Description

Energy-saving smoke device of drying equipment

Technical Field

The utility model relates to an energy-conserving fume device of drying equipment.

Background

The mill is the equipment that smashes barite, calcite, marble, limestone, gypsum, quartz, glass, manganese ore, chromium ore deposit etc. the hot-blast furnace carries out the heat exchange with cold air, send into the mill through the pipeline and dry the product of powdered ore goods, the tail gas that comes out through the mill generally is through dust removal processing, direct emission is carried out after the tail gas treatment, and the tail gas temperature through dust removal processing is generally about 100 ℃, directly carry out the tail gas treatment on the one hand tail gas treatment cost too high, on the other hand probably still have the incomplete residual combustible gas of partial fuel burning in the tail gas, it is more difficult to handle, directly discharge probably to make the tail gas of emission not up to standard, influence enterprise's normal production.

SUMMERY OF THE UTILITY MODEL

The utility model discloses to the technical problem who exists among the prior art, provide an energy-conserving fume chamber of drying equipment, the device realizes energy saving and emission reduction through the cyclic utilization of tail gas, and exhaust gas utilization can reach 80%, has both reduced the tail gas treatment cost, reasonable again has utilized the heat energy of tail gas and the combustible gas who contains in the tail gas, the use amount of fuel when having reduced the hot-blast furnace heat supply.

The utility model provides an above-mentioned technical problem's technical scheme as follows:

the utility model provides an energy-conserving fume device of drying equipment, including hot-blast furnace, mill, dust collector, draught fan and tail gas processing apparatus, hot-blast furnace and mill intercommunication lead to in to the mill hot-blastly, pipeline between hot-blast furnace and the mill still communicates with the atmosphere pipeline, and the air outlet and the dust collector of mill are connected, and the draught fan setting is on the pipeline between dust collector and tail gas processing apparatus, and the pipeline between draught fan and the tail gas processing apparatus still communicates through the air intake of circulating pipe two with the hot-blast furnace.

Preferably, the pipeline between the induced draft fan and the tail gas treatment device is also communicated with the pipeline between the hot blast stove and the atmosphere pipeline through the first circulating pipe.

Specifically, dust collector is including the preliminary dust device that connects gradually, sack cleaner one and sack cleaner two, preliminary dust device includes the pipeline of vertical setting, the below of pipeline is connected with dust collection device through ash falling bucket, a side of pipeline below is provided with the air intake, the air intake communicates with the air outlet of mill, the top of pipeline is provided with the air outlet, air outlet and sack cleaner one intercommunication, the cross section of pipeline is the rectangle structure, it has a plurality of filter equipment to crisscross in proper order on two inner walls that correspond in the pipeline, two adjacent filter equipment's orthographic projection all has the overlap area.

The filtering device comprises a first filtering net horizontally arranged, the first filtering net is fixed on the inner wall of the pipeline through a rectangular frame, and three edges of the rectangular frame are fixed on the inner wall of the pipeline.

Wherein, filter equipment still includes leads the hawk, leads the hawk slope to fix directly over filter screen one and to the interior below slope of pipeline, leads the three side of hawk and fixes on the pipeline inner wall, and another side links together through the border of filter screen two with filter screen one, and filter screen two is vertical setting.

Preferably, a vibration cleaning device is further arranged in the space between the first filter screen and the ash guide plate.

Specifically, vibration cleaning device includes elastic ball, pivot and handle, and the pivot is worn to establish on the pipeline wall through sealed bearing, and the elastic ball passes through the stay cord to be fixed at a pivot tip, and the elastic ball is located between filter screen one and the ash guide plate, and another tip of pivot is provided with the handle that makes things convenient for the pivoted, and twist grip, pivot drive elastic ball rotate and hit constantly to hit ash guide plate and filter screen one.

The utility model discloses following beneficial technological effect has:

(1) the utility model introduces the tail gas into the burner below the hot blast stove through the second circulating pipe for cyclic utilization, on one hand, the combustible gas (generated by incomplete combustion of fuel in the hot blast stove) contained in the tail gas can be directly used as fuel for combustion and heat supply, on the other hand, the temperature of the tail gas is higher, the tail gas with higher temperature can also provide heat for the combustion of the fuel in the hot blast stove, and the temperature in the hot blast stove is better kept;

(2) the temperature of the flue gas from the hot blast stove is about 800 ℃ generally, the temperature of the tail gas is about 100 ℃, and the temperature of the hot air required in the mill is about 300 ℃, the utility model discloses further introduce the tail gas into the air outlet of the hot blast stove through the first circulating pipe, directly mix with the flue gas from the hot blast stove before mixing with the atmosphere of normal temperature, can reduce the demand of high-temperature flue gas, indirectly realize the purpose of energy saving and emission reduction;

(3) the tail gas is recycled, so that the tail gas treatment cost is reduced;

(4) the dust removal device has good dust removal effect, and the bag-type dust removal is carried out after the treatment of the dust removal device, so that the replacement frequency of the bag is reduced, and the dust removal efficiency is higher.

Drawings

FIG. 1 is a schematic structural view of example 1;

FIG. 2 is a schematic structural view of example 2;

FIG. 3 is a schematic structural diagram of the primary dust settling device in FIG. 2;

in the figure, a hot blast stove 1, a mill 2, a primary dust-settling device 3, a bag dust remover 4I, a bag dust remover 5 II, a draught fan 6, a circulating pipe 7I, a circulating pipe 8 II, a filter screen 31I, a dust guide plate 32, a filter screen 33 II, elastic balls 34, a rotating shaft 35 and a handle 36 are arranged.

Detailed Description

The principles and features of the present invention are described below in conjunction with the following drawings, the examples given are only intended to illustrate the present invention and are not intended to limit the scope of the present invention.

Example 1

As shown in figure 1, an energy-conserving fume device of drying equipment, including hot-blast furnace 1, mill 2, dust collector, draught fan 6 and tail gas processing apparatus, hot-blast furnace 1 leads to the hot-blast to mill 2 with mill 2 intercommunication, pipeline between hot-blast furnace 1 and the mill 2 still communicates with the atmosphere pipeline, the air outlet and the dust collector of mill 2 are connected, draught fan 6 sets up on the pipeline between dust collector and tail gas processing apparatus, pipeline between draught fan 6 and the tail gas processing apparatus still communicates through the air intake of circulating pipe two 8 with hot-blast furnace 1.

In this embodiment, hot gas is provided by the hot blast stove 1, the temperature of the gas from the hot blast stove 1 is about 800-, the tail gas treatment device can adopt a desulfurization and denitrification device which is common in the prior art.

In the embodiment, the pipeline between the induced draft fan 6 and the tail gas treatment device is also communicated with the pipeline between the hot blast stove 1 and the atmospheric pipeline through the first circulating pipe 7, the temperature of the gas from the hot blast stove is about 800-.

In this embodiment, can set up adjusting valve on each pipeline as required, also can be as required in the reasonable draught fan that sets up in different positions.

Example 2

As shown in fig. 2, the difference between this embodiment and embodiment 1 lies in, dust collector is including the preliminary dust device 3 that connects gradually, sack cleaner one 4 and sack cleaner two 5, preliminary dust collector 3 is including the pipeline of vertical setting, the below of pipeline is connected with dust collection device through the ash bucket that falls, a side of pipeline below is provided with the air intake, the air intake communicates with the air outlet of mill 2, the top of pipeline is provided with the air outlet, air outlet and sack cleaner one 4 intercommunication, the cross section of pipeline is the rectangle structure, it has a plurality of filter equipment to stagger in proper order on two inner walls that correspond in the pipeline, two adjacent filter equipment 'S orthographic projection all has the overlap area, filter equipment' S width is greater than half of pipeline width promptly, guarantee to have an S type passageway in the pipeline, the gas through the pipeline is filtered as far as possible.

As shown in fig. 3, the filtering device includes a horizontally disposed first filter screen 31, the first filter screen 31 is fixed on the inner wall of the pipeline through a rectangular frame, i.e. the first filter screen 31 is fixedly disposed in the middle of the rectangular frame, three edges of the rectangular frame are all fixed on the inner wall of the pipeline, and a channel is formed between the other edge of the rectangular frame and the inner wall of the other side of the pipeline.

The filter device further comprises an ash guide plate 32, the amount of dust after filtration is large, the dust falls on the first filter screen 31 after falling, on one hand, the filter screen can be blocked, on the other hand, the dust accumulated above the first filter screen 31 cannot be easily cleaned, especially, after cooling, part of dust can be condensed on the first filter screen 31 under the condition of large moisture content, the ash guide plate 32 is obliquely fixed right above the first filter screen 31 and is inclined towards the inner lower part of the pipeline, three side surfaces of the ash guide plate 32 are fixed on the inner wall of the pipeline, the other side surfaces of the ash guide plate are connected with the edge of the first filter screen 31 through the second filter screen 33, the second filter screen 33 is vertically arranged, and a right-angled trapezoid space is formed between the first filter screen 31, the second filter screen 33 and the inner wall of the pipeline.

In order to facilitate cleaning, a vibration cleaning device is further arranged in a space between the first filter screen 31 and the first dust guide plate 32, and the vibration cleaning device can perform vibration cleaning on the first dust guide plate 32 and the first filter screen 31.

Vibration cleaning device includes elastic ball 34, pivot 35 and handle 36, pivot 35 wears to establish on the pipeline wall through sealed bearing, elastic ball 34 passes through the stay cord and fixes a tip at pivot 35, elastic ball 34 is located between filter screen 31 and the ash guide plate 32, the other end of pivot 35 is provided with convenient pivoted handle 36, rotating handle 36, pivot 35 drives elastic ball 34 and rotates and constantly hits the hitting and lead ash guide plate 32 and filter screen 31, it takes place to vibrate ash guide plate 32 and filter screen 31 and can clear up the partial dust of accumulation down.

The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.

Claims

1. The utility model provides an energy-conserving fume device of drying equipment, a serial communication port, including hot-blast furnace (1), mill (2), dust collector, draught fan (6) and tail gas processing apparatus, hot-blast furnace (1) leads to the hot-blast to mill (2) with mill (2) intercommunication, pipeline between hot-blast furnace (1) and mill (2) still communicates with the atmosphere pipeline, the air outlet and the dust collector of mill (2) are connected, draught fan (6) set up on the pipeline between dust collector and tail gas processing apparatus, pipeline between draught fan (6) and the tail gas processing apparatus still communicates through the air intake of circulating pipe two (8) and hot-blast furnace (1).

2. The energy-saving flue gas device for the drying equipment according to claim 1, wherein a pipeline between the induced draft fan (6) and the tail gas treatment device is communicated with a pipeline between the hot blast stove (1) and an atmosphere pipeline through a first circulating pipe (7).

3. The energy-saving smoke device for the drying equipment, according to claim 1, wherein the dust removing device comprises a primary dust removing device (3), a first bag-type dust remover (4) and a second bag-type dust remover (5) which are connected in sequence, the primary dust removing device (3) comprises a vertically arranged pipeline, the lower part of the pipeline is connected with the dust collecting device through a dust falling hopper, an air inlet is formed in one side face of the lower part of the pipeline, the air inlet is communicated with an air outlet of the mill (2), an air outlet is formed in the upper part of the pipeline, the air outlet is communicated with the first bag-type dust remover (4), the cross section of the pipeline is of a rectangular structure, a plurality of filtering devices are arranged on two corresponding inner walls in the pipeline in a staggered mode in sequence, and orthog.

4. The energy-saving smoke device for the drying equipment, as recited in claim 3, wherein the filtering device comprises a horizontally arranged first filtering screen (31), the first filtering screen (31) is fixed on the inner wall of the pipeline through a rectangular frame, and three sides of the rectangular frame are fixed on the inner wall of the pipeline.

5. The energy-saving smoke device for the drying equipment according to claim 4, wherein the filtering device further comprises an ash guide plate (32), the ash guide plate (32) is obliquely fixed right above the first filter screen (31) and is obliquely inclined towards the inner lower part of the pipeline, three sides of the ash guide plate (32) are fixed on the inner wall of the pipeline, the other side of the ash guide plate is connected with the edge of the first filter screen (31) through a second filter screen (33), and the second filter screen (33) is vertically arranged.

6. The energy-saving smoke device for the drying equipment is characterized in that a vibration cleaning device is further arranged in a space between the first filter screen (31) and the ash guide plate (32).

7. The energy-saving smoke device for the drying equipment, according to claim 6, wherein the vibration cleaning device comprises an elastic ball (34), a rotating shaft (35) and a handle (36), the rotating shaft (35) is arranged on the wall of the pipeline in a penetrating manner through a sealing bearing, the elastic ball (34) is fixed at one end of the rotating shaft (35) through a pull rope, the elastic ball (34) is located between the first filter screen (31) and the first dust guide plate (32), the handle (36) convenient to rotate is arranged at the other end of the rotating shaft (35), the handle (36) is rotated, and the rotating shaft (35) drives the elastic ball (34) to rotate and continuously hit the first filter screen (31) and the second filter screen (32).