CN209771709U - Flue gas dust removal system for sintering tunnel kiln - Google Patents

Abstract

The utility model provides a flue gas dust removal system for a sintering tunnel kiln, which comprises a first air pipe, a blower, a second air pipe, a bag-type dust remover and a cooling and dehumidifying device, the cooling and dehumidifying device comprises a first box body, a cold water tank provided with a water pump, a plurality of multi-bending structures which are vertically arranged at equal intervals, a first water pipe and a second water pipe, the left lower part of the first box body is provided with a first air inlet, the top part of the first box body is provided with a first air outlet, the multi-bending structure is formed by sealing the periphery of two layers of multi-bending plates with preset intervals, the upper end of the water pipe is provided with a water outlet with a multi-bending structure, the lower end of the water pipe is provided with a water inlet with a multi-bending structure, the water inlet with the multi-bending structure is communicated with a first water pipe through a first connecting water pipe, the water outlets of the multi-bending structures are communicated with a second water pipe through a second connecting water pipe, and the water outlets of the second water pipe are arranged at the upper part of the inner cavity of the cold water tank. The utility model discloses simple structure can effectively reduce the damage of sack in the sack cleaner.

Description

Flue gas dust removal system for sintering tunnel kiln

Technical Field

The utility model belongs to the technical field of the baked brick production technique and specifically relates to a flue gas dust pelletizing system for sintering tunnel kiln.

background

The solid particle substance is one of main air pollutants, and the inhalable particles can penetrate into the lung along with the respiration of a human body to generate toxic action. The baked brick can produce the flue gas that the temperature is higher and contain a large amount of dust in high temperature sintering process, if not handle and directly discharge and can pollute the environment in the air, consequently must handle it before discharging, and prior art adopts the sack cleaner to remove dust more, but because this part flue gas temperature is very high, often damages the sack, leads to the flue gas dust removal cost higher.

In addition, in order to utilize the heat of the high-temperature flue gas, part of the baked brick production enterprises can use the high-temperature flue gas for drying wet green bricks, and then send the high-temperature flue gas into the desulfurizing tower and the dust remover for desulfurization and dust removal respectively, but because the flue gas contains moisture and dust generated after a large amount of wet green bricks are dried, the moisture and part of the dust can be left in the desulfurizing liquid during desulfurization and dust removal, so that the concentration of the desulfurizing liquid is lower and lower, the desulfurizing effect becomes poor in a long term, in order to ensure the desulfurizing effect, the desulfurizing liquid must be frequently replaced by new desulfurizing liquid during use, and the desulfurizing cost is greatly improved.

SUMMERY OF THE UTILITY MODEL

the utility model aims to solve the technical problem that overcome above-mentioned prior art's defect, provide a flue gas dust pelletizing system for sintering tunnel kiln, can cool down the dehumidification to the high temperature flue gas that gets into in the sack cleaner, can effectively reduce the damage of sack, reduce the desulfurization cost of flue gas.

Therefore, the utility model adopts the following technical scheme: the utility model provides a flue gas dust pelletizing system for sintering tunnel cave, includes first tuber pipe, forced draught blower, second tuber pipe and sack cleaner, the air outlet of second tuber pipe and the air intake intercommunication of sack cleaner, flue gas dust pelletizing system for sintering tunnel cave still includes cooling dehydrating unit, cooling dehydrating unit includes first box, the cold water storage cistern that is equipped with the water pump, set up a plurality of equidistant vertical range's in the first box first water pipe and the second water pipe that first water pipe and one end and water pump communicate, the left lower part of first box is equipped with first air intake, and the top is equipped with first air outlet, first air intake and the air outlet intercommunication of first tuber pipe, the air intake intercommunication of first air outlet and second tuber pipe, many bent structure is sealed all around by two-layer many bent plates that have predetermined interval and constitutes, and its upper end is equipped with many bent structure delivery ports, the lower extreme is equipped with many bent structure water inlets, many bent structure water inlets are through first connecting water pipe and first water pipe intercommunication, many bent structure delivery ports are through second connecting water pipe and second water pipe intercommunication, the delivery port setting of second water pipe is on cold water storage cistern inner chamber upper portion.

Further, the cooling and dehumidifying device further comprises a first partition plate arranged at the left lower part of the first box inner cavity and a second partition plate arranged at the right lower part of the first box inner cavity.

Further, the multi-bending structure is made of metal materials.

The utility model has the advantages that:

(1) The cooling and dehumidifying device is arranged to cool and dehumidify the high-temperature flue gas before entering the bag-type dust collector, so that the cooled flue gas does not damage the bag, and the service life of the bag-type dust collector is longer;

(2) The flue gas with a large amount of moisture is introduced into a cooling and dehumidifying device for cooling, dehumidifying and dedusting, and condensed water generated during flue gas dehumidification has a dedusting function, so that dust in the flue gas can be effectively reduced;

(3) Condensed water, dust and gas in the flue gas are separated by the aid of the multi-bending channels, and the separated flue gas is respectively introduced into the bag-type dust remover and the desulfurizing tower for dedusting and desulfurizing, so that the dedusting effect of the flue gas is effectively improved, and the desulfurizing cost of the flue gas is further reduced.

Drawings

FIG. 1 is a schematic structural diagram of a flue gas dust removal system for a sintering tunnel kiln.

Fig. 2 is a schematic structural view of a multi-bending structure.

Description of reference numerals: 1-a second air pipe, 2-a first air outlet, 3-a second connecting water pipe, 4-a multi-bending structure, 5-a first box body, 6-a first partition plate, 7-a first connecting water pipe, 8-a first air inlet, 9-an air feeder, 10-a first air pipe, 11-a bag-type dust collector, 12-a second water pipe, 13-a second partition plate, 14-a first water pipe, 15-a cold water tank, 16-a water pump, 17-a multi-bending structure water outlet, 18-a multi-bending plate and 19-a multi-bending structure water inlet.

Detailed Description

The present invention will be described in further detail with reference to the following detailed description of specific embodiments thereof, which is illustrated in the accompanying drawings.

Referring to fig. 1 and fig. 2, the embodiment provides a flue gas dust removal system for a sintering tunnel kiln, which includes a first air duct 10, a blower 9, a second air duct 1 and a bag-type dust remover 11, wherein an air outlet of the second air duct 1 is communicated with an air inlet of the bag-type dust remover 11.

specifically, the air inlet of the first air duct can be directly communicated with a high-temperature flue gas exhaust outlet of the sintering tunnel kiln, the temperature and the moisture content of the high-temperature flue gas exhausted by the exhaust outlet are high, and the high-temperature flue gas also can be communicated with an exhaust outlet of a drying chamber for drying wet green bricks, the temperature and the moisture content of the high-temperature flue gas exhausted by the exhaust outlet are high, namely the high-temperature flue gas is exhausted from a hot air outlet of the sintering tunnel kiln, is firstly introduced into the drying chamber to dry the wet green bricks, and then is sent into the first air duct; the air blower is arranged on the first air pipe, and a centrifugal fan is preferably adopted.

It should be noted that, when the first air duct is provided with the blower, the exhaust outlet of the drying chamber or the exhaust outlet of the sintering tunnel kiln does not need to be provided with a corresponding exhaust fan.

The flue gas dust removal system for the sintering tunnel kiln further comprises a cooling and dehumidifying device, the cooling and dehumidifying device comprises a first box body 5, a cold water tank 15 provided with a water pump 16, a plurality of multi-bending structures 4 which are vertically arranged at equal intervals and arranged in the first box body, a first water pipe 14 and a second water pipe 12, one end of the first water pipe is communicated with the water pump 16, a first air inlet 8 is arranged at the lower left part of the first box body 5, a first air outlet 2 is arranged at the top of the first box body, the first air inlet 8 is communicated with an air outlet of a first air pipe 10, the first air outlet 2 is communicated with an air inlet of a second air pipe 1, the multi-bending structures 4 are formed by sealing the periphery of two layers of multi-bending plates 18 with preset intervals, a multi-bending structure water outlet 17 is arranged at the upper end of the multi-bending structures, a multi-bending structure water inlet 19 is arranged at the lower end of the multi-bending, the water outlet 17 of the multi-bending structure is communicated with the second water pipe 12 through a second connecting water pipe 3, and the water outlet of the second water pipe 12 is arranged at the upper part of the inner cavity of the cold water tank.

Specifically, a plurality of equidistant vertical many curved structures of arranging make up and form a plurality of many curved passage, after high temperature flue gas gets into from the lower part of first box, when many curved direction among many curved passage flow, the water pump makes many curved structure's temperature lower and have refrigeration function with the cold water circulation transport to many curved structure in with the cold water storage cistern, thereby make the high temperature flue gas temperature who gets into many curved passage reduce rapidly, wherein, when containing a large amount of moisture in the high temperature flue gas, still can produce the comdenstion water in the many curved passage, the comdenstion water can adsorb the dust in the flue gas and flow into the bottom of first box gradually, the lower low temperature flue gas of humidity lets in the sack cleaner through the second tuber pipe.

It should be noted that the cold water tank is also used for recovering the waste heat in the high-temperature flue gas, and the recovered hot water can be conveyed to the aging chamber at regular time through arranging a corresponding water pump and a corresponding water pipe, so as to improve the aging effect of the brick raw materials.

Preferably, cooling dehydrating unit is still including setting up first baffle 6 in first box inner chamber left lower part and setting up second baffle 13 in first box inner chamber right lower part, wherein, first baffle is used for the flue gas flow in gap between the many curved structure of separation leftmost end and the first box left side wall, the flue gas flow in gap between the many curved structure of separation rightmost end and the first box right side wall is used for the separation rightmost end.

Preferably, the multi-bending plate is made of a metal material.

In order to further improve the cooling and dehumidifying effects of the flue gas, preferably, the front end and the rear end of the multi-bending structure are respectively fixed on the inner side wall of the first box body, and the gap at the contact position is sealed by waterproof glue or sealant.

The utility model discloses a set up the lower cold water of temperature in the cooling water tank, and through the water pump with cold water circulation flow to many curved structures, make many curved structures have the refrigeration function, simultaneously make the high temperature flue gas temperature who gets into in the first box reduce rapidly through many curved passageways that many curved structures make up and form, thereby make the flue gas can not cause the damage to the sack when getting into the sack cleaner, wherein, when containing a large amount of moisture in the high temperature flue gas, because the temperature of many curved passageways is lower, the moisture is easily condensed and produces the comdenstion water when the high temperature flue gas that has a large amount of moisture flows along many curved passageways direction, the comdenstion water stays in many curved passageways, the lower and comparatively dry low temperature flue gas of humidity flows into the sack cleaner, can not reduce in the doctor solution concentration short time when getting into the desulfurizing tower after the sack cleaner removes dust, the desulfurization effect is better, can greatly reduce the desulfurization cost of flue gas, further improving the desulfurization and dust removal effects of the flue gas.

The protection scope of the present invention is not limited to the above description, and any other products in other forms suggested by the present invention, no matter how the shape or structure is changed, all have the same or similar technical solutions as the present invention, and are all within the protection scope of the present invention.

Claims (3)

1. The flue gas dust removal system for the sintering tunnel kiln comprises a first air pipe (10), a blower (9), a second air pipe (1) and a bag-type dust remover (11), wherein an air outlet of the second air pipe (1) is communicated with an air inlet of the bag-type dust remover (11), and is characterized by further comprising a cooling and dehumidifying device, the cooling and dehumidifying device comprises a first box body (5), a cold water tank (15) provided with a water pump (16), a plurality of multi-bending structures (4) which are vertically arranged at equal intervals and are arranged in the first box body, a first water pipe (14) and a second water pipe (12), one end of the first water pipe is communicated with the water pump (16), a first air inlet (8) is arranged at the lower left part of the first box body (5), a first air outlet (2) is arranged at the top of the first box body, and the first air inlet (8) is communicated with an air outlet of the first air pipe (10), the air inlet of first air outlet (2) and second tuber pipe (1) communicates, many bent structure (4) are sealed all around by two-layer many bent plate (18) that have predetermined interval and constitute, and its upper end is equipped with many bent structure delivery port (17), and the lower extreme is equipped with many bent structure water inlet (19), many bent structure water inlet (19) communicate with first water pipe (14) through first connecting water pipe (7), many bent structure delivery port (17) communicate with second water pipe (12) through second connecting water pipe (3), the delivery port setting of second water pipe (12) is on cold water storage cistern inner chamber upper portion.

2. The flue gas dust removal system for the sintering tunnel kiln as recited in claim 1, wherein the temperature reduction and dehumidification device further comprises a first partition plate (6) arranged at the lower left part of the inner cavity of the first box and a second partition plate (13) arranged at the lower right part of the inner cavity of the first box.

3. The flue gas dust removal system for a sintering tunnel kiln as recited in claim 1 or 2, characterized in that the multi-bend structure (4) is made of metal material.