CN213631592U

CN213631592U - Immersed cooling roasting slag discharging system

Info

Publication number: CN213631592U
Application number: CN202022351861.8U
Authority: CN
Inventors: 唐航
Original assignee: Shaoguan Qujiang Xianghe Fine Chemical Co ltd
Current assignee: Shaoguan Qujiang Xianghe Fine Chemical Co ltd
Priority date: 2020-10-20
Filing date: 2020-10-20
Publication date: 2021-07-06
Anticipated expiration: 2030-10-20

Abstract

The utility model discloses an immersed cooling roasting slag discharging system, which comprises a roasting furnace, a first slag discharging pipe, a high-temperature section cold slag bin, a second slag discharging pipe, a low-temperature section cold slag bin, a third slag discharging pipe, a cold air chamber, a conveying mechanism and a cold air mechanism; the cold air mechanism comprises an air suction hopper, an air suction pipe arranged at one end of the air suction hopper, an air exhauster communicated with the air suction pipe, an air outlet pipe arranged at one end of the air exhauster, a filtering water tank arranged at one end of the air outlet pipe, and an exhaust pipe arranged on the filtering water tank; through the cooperation of air suction hopper, aspiration channel and air exhauster, can suction the indoor hot-air of cold wind to the filtrating water tank for the indoor air of cold wind flows, is favorable to the cooling of slag, can be again through sucking the indoor raise dust of cold wind to the filtrating water tank, and the filtrating water tank filters and collects the sediment ash in the raise dust, thereby reduces the sediment ash in the slag, and then reduces the raise dust that the slag produced in carrying and piling up the in-process, is favorable to the environmental protection.

Description

Immersed cooling roasting slag discharging system

Technical Field

The utility model relates to a bake burning furnace over a slow fire sediment technical field, concretely relates to submergence formula cooling calcination slag discharge system.

Background

In the existing industrial smelting, the temperature reduction degree of the slag of the roasting furnace has great influence on the whole roasting system, the cooling effect is achieved through the spraying of the cooling roller in the common existing slag cooling mode, the slag discharging pipeline cannot be timely cooled in the cooling mode, the temperature of the slag in the subsequent process is still high, the process requirement cannot be met, and the process of the whole process is influenced.

In recent years, with the continuous improvement of slag coolers, roller slag coolers adopting dividing wall type heat exchange have been widely adopted; the slag cooler adopts the separation design of the slag channel and the water channel, and hot water generated after heat exchange between cooling water and slag can be used as domestic water for factories, so that the slag cooler has higher economic benefit; if chinese patent [ application No. 201922077918.7] discloses a novel pyrite system acid making cinder waste heat recovery device, including fluidized bed furnace, heat preservation storage tank, high temperature section cold sediment machine and low temperature section cold sediment machine structure are the same, including a cylinder, be equipped with into the sediment pipe in the cylinder, it is equipped with the water pipe to advance the sediment outside of tubes, advances the sediment pipe cross-section and comprises the cellular concatenation of a plurality of hexagon, and cylinder one side is equipped with the speed reducer, and the cylinder bottom is equipped with the support for adjusting the cylinder gradient, its advantage lies in: dry-method slag discharge can be realized, acid corrosion of equipment is effectively avoided, and waste of water is reduced; two-stage cooling is adopted, so that the heat exchange efficiency is high, and the equipment maintenance is simple; the device has simple structure, convenient operation and maintenance, small occupied area and short construction period; however, because the dry-type slag discharging method is adopted, after passing through the low-temperature-section slag cooler, the slag is mainly naturally air-cooled on the conveying belt, the cooling speed of the slag is low, the cooling effect is poor, and because the slag is not subjected to humidification treatment, a large amount of dust is easy to appear in the processes of conveying and slag stacking, the air quality of a production area is affected, and the environment friendliness is not facilitated.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model aims at providing a submergence formula cooling calcination slag discharge system that is favorable to cooling, is favorable to the environmental protection.

In order to solve the technical problem, the technical scheme of the utility model is that: an immersed cooling roasting slag discharging system comprises a roasting furnace, a first slag discharging pipe arranged below the roasting furnace, a high-temperature-section slag cooling bin arranged below the first slag discharging pipe, a second slag discharging pipe arranged below the high-temperature-section slag cooling bin, a low-temperature-section slag cooling bin arranged below the second slag discharging pipe and consistent with the high-temperature-section slag cooling bin in structure, a third slag discharging pipe arranged below the low-temperature slag cooling bin, a cold air chamber arranged below the third slag discharging pipe, a conveying mechanism arranged inside the cold air chamber, a cold air mechanism arranged inside the cold air chamber and located above the conveying mechanism, wherein the lower end of the third slag discharging pipe extends to the inside of the cold air chamber, and the lower end of the third slag discharging pipe is located above the conveying mechanism; the cold wind mechanism is including setting up the inside hopper that induced drafts of cold wind room, the opening of hopper that induced drafts sets up towards third scum pipe the aspiration channel of third scum pipe one end is kept away from to the hopper that induced drafts, with the air exhauster of aspiration channel fixed and intercommunication sets up the air-out pipe of aspiration channel one end is kept away from to the air exhauster, sets up at the play water filter tank that air exhauster one end was kept away from to the tuber pipe, sets up exhaust pipe on the water filter tank.

As preferred, filter tank's top is provided with sealed lid, the one end of air-out pipe runs through sealed lid from top to bottom to extend to below filter tank's the liquid level, the lower extreme of exhaust pipe communicates through sealed lid and filter tank's inside, the lower extreme of exhaust pipe is located more than filter tank's the liquid level, and this kind of design is favorable to passing through the sediment ash in filter tank's solution recovery air.

Preferably, a filter screen is fixedly installed on the exhaust pipe.

Preferably, the first slag discharge pipe is fixedly provided with a first slag discharge valve.

Preferably, the high-temperature section slag cooling bin comprises an outer shell, an inner shell arranged in the outer shell, a cooling water cavity arranged between the outer shell and the inner shell, a slag cavity arranged in the inner shell, a water inlet pipe arranged on one side of the outer shell and communicated with the cooling water cavity, and a water outlet pipe arranged on one side of the outer shell, far away from the water inlet pipe, positioned above the water inlet pipe and communicated with the cooling water cavity; the cooling mode of lower inlet and upper outlet is favorable for heat exchange between cooling water and slag.

Preferably, a second slag discharge valve is fixedly mounted on the second slag discharge pipe.

Preferably, a third slag discharge valve is fixedly mounted on the third slag discharge pipe.

Preferably, the conveying mechanism comprises a driving motor, a driving wheel fixedly connected with the output end of the driving motor, and a driven wheel in transmission connection with the driving wheel, the driving wheel is in transmission connection with the driven wheel through a conveying belt, and the driving wheel and the driven wheel are fixedly installed on the ground through installation rods.

The utility model discloses technical effect mainly embodies: through the cooperation of air suction hopper, aspiration channel and air exhauster, can suction the indoor hot-air of cold wind to the filtrating water tank for the indoor air of cold wind flows, is favorable to the cooling of slag, can be again through sucking the indoor raise dust of cold wind to the filtrating water tank, and the filtrating water tank filters and collects the sediment ash in the raise dust, thereby reduces the sediment ash in the slag, and then reduces the raise dust that the slag produced in carrying and piling up the in-process, is favorable to the environmental protection.

Drawings

FIG. 1 is a schematic structural view of an immersed cooling roasting slag discharge system of the present invention;

FIG. 2 is a schematic cross-sectional structure view of the high-temperature-stage cold slag bin of FIG. 1;

fig. 3 is a schematic structural view of the cooling air mechanism of fig. 1.

Detailed Description

The following detailed description of the embodiments of the present invention is made with reference to the accompanying drawings, so that the technical solution of the present invention can be more easily understood and grasped.

In the present embodiment, it should be understood that the terms "middle", "upper", "lower", "top", "right", "left", "above", "back", "middle", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of describing the present invention, and do not indicate or imply that the referred devices or elements must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the present embodiment, if the connection or fixing manner between the components is not specifically described, the connection or fixing manner may be a bolt fixing manner, a pin connecting manner, or the like, which is commonly used in the prior art, and therefore, details thereof are not described in the present embodiment.

An immersed cooling roasting slag discharging system, as shown in fig. 1, comprises a roasting furnace 1, a first slag discharging pipe 2 arranged below the roasting furnace 1, a high-temperature section slag cooling bin 3 arranged below the first slag discharging pipe 2, a second slag discharging pipe 4 arranged below the high-temperature section slag cooling bin 3, a low-temperature section slag cooling bin 5 arranged below the second slag discharging pipe 4 and having the same structure with the high-temperature section slag cooling bin 3, a third slag discharging pipe 6 arranged below the low-temperature section slag cooling bin 5, a cold air chamber 7 arranged below the third slag discharging pipe 6, a conveying mechanism 8 arranged inside the cold air chamber 7, and a cold air mechanism 9 arranged inside the cold air chamber 7 and positioned above the conveying mechanism 8, the lower end of the third slag discharging pipe 6 extends into the cold air chamber 7, and the lower end of the third slag discharging pipe 6 is located above the conveying mechanism 8.

And a first slag discharge valve 21 is fixedly arranged on the first slag discharge pipe 2. And a second slag discharge valve 41 is fixedly arranged on the second slag discharge pipe 4. And a third slag discharge valve 61 is fixedly arranged on the third slag discharge pipe 6. Conveying mechanism 8 includes driving motor 81, with driving wheel 82 of driving motor 81's output fixed connection, with driven wheel 83 that driving wheel 82 transmission is connected, driving wheel 82 is connected with driven wheel 83 transmission through conveyer belt 84, driving wheel 82 and driven wheel 83 are all through installation pole 85 fixed mounting subaerial.

As shown in fig. 2, the high-temperature-stage cold slag bin 3 includes an outer shell 31, an inner shell 32 disposed inside the outer shell 31, a cooling water cavity 33 disposed between the outer shell 31 and the inner shell 32, a slag cavity 34 disposed inside the inner shell 32, a water inlet pipe 35 disposed on one side of the outer shell 31 and communicated with the cooling water cavity 33, and a water outlet pipe 36 disposed on one side of the outer shell 31 away from the water inlet pipe 35, located above the water inlet pipe 35, and communicated with the cooling water cavity 33; the cooling mode of lower inlet and upper outlet is favorable for heat exchange between cooling water and slag.

As shown in fig. 3, cold wind mechanism 9 is including setting up the inside hopper 91 that induced drafts of cold wind room 7, the opening of hopper 91 that induced drafts sets up towards third scum pipe 6 suction pipe 92 that third scum pipe 6 one end was kept away from to the hopper 91 that induced drafts, with the air exhauster 93 of suction pipe 92 fixed and intercommunication sets up air exhauster 93 that air exhauster 93 kept away from suction pipe one end goes out tuber pipe 94, sets up at play tuber pipe 94 and keeps away from rose box 95 of air exhauster 93 one end, sets up exhaust pipe 96 on rose box 95. The top of filter tank 95 is provided with sealed lid 951, the one end of air-out 94 pipe runs through sealed lid 951 from top to bottom to extend to below the liquid level of filter tank 95, the lower extreme of exhaust pipe 96 communicates through sealed lid 951 and filter tank 95's inside, the lower extreme of exhaust pipe 96 is located above filter tank 95's the liquid level, and this kind of design is favorable to passing through the sediment ash in filter tank 95's solution recovery air. A filter screen 961 is fixedly installed on the exhaust duct 96. Specifically, the filter screen 961 is an activated carbon filter screen. When the slag passes through the third when slag pipe 6 falls to conveying mechanism 8's conveyer belt, air suction hopper 91 can be under the effect of air exhauster 93, inhale the dust extremely filter water tank 94, this makes air suction hopper 91 can be through the inside hot-air of suction cold air chamber 7, accelerate air in the cold air chamber 7 flows, is favorable to reducing the temperature of slag on the conveyer belt 83, just air suction hopper 91 can also absorb away the slag dust in the hot-air, can be favorable to the recycle of slag dust, after having absorbed a large amount of slag dust in the slag, can also reduce conveying mechanism 8 produced raise dust when transporting the slag, and the raise dust that the slag produced when stacking, is favorable to the environmental protection.

In the embodiment, the first slag discharge valve 21, the second slag discharge valve 41 and the third slag discharge valve 61 are all high temperature resistant ball valves of model Q941F-25P, the driving motor 81 is a stepping motor of model 57BYGH, and the exhaust fan 93 is a centrifugal fan of model CZ-TD 550W.

The working principle is as follows: the slag from the roasting furnace 1 reaches the high-temperature section cold slag bin 3 through the first slag discharge pipe 2, the high-temperature slag exchanges heat with cooling water in the high-temperature section cold slag bin 3 to become medium-temperature slag, the medium-temperature slag reaches the low-temperature section cold slag bin 5 through the second slag discharge pipe 4, the slag exchanges heat with the cooling water in the low-temperature section cold slag bin 5 to become low-temperature slag, the low-temperature slag falls onto the conveying belt 84 through the third slag discharge pipe 6, the driving motor 81 and the exhaust fan 93 are opened, the conveying belt 83 conveys the low-temperature slag to a slag yard, in the process, the air suction hopper 91 sucks hot air and raised dust in the cold air chamber 7 to the filter water tank 95 under the action of the exhaust fan 93, the filter water tank 95 filters and collects slag ash in the hot air, and the exhaust pipe 95 exhausts the filtered air to the atmosphere.

Of course, the above is only a typical example of the present invention, and besides, the present invention can also have other various specific embodiments, and all technical solutions adopting equivalent replacement or equivalent transformation are all within the scope of the present invention as claimed.

Claims

1. An immersed cooling roasting slag discharging system comprises a roasting furnace, a first slag discharging pipe arranged below the roasting furnace, a high-temperature-section slag cooling bin arranged below the first slag discharging pipe, a second slag discharging pipe arranged below the high-temperature-section slag cooling bin, a low-temperature-section slag cooling bin arranged below the second slag discharging pipe and consistent with the high-temperature-section slag cooling bin in structure, a third slag discharging pipe arranged below the low-temperature-section slag cooling bin, a cold air chamber arranged below the third slag discharging pipe, a conveying mechanism arranged inside the cold air chamber, and a cold air mechanism arranged inside the cold air chamber and located above the conveying mechanism; the method is characterized in that: the cold wind mechanism is including setting up the inside hopper that induced drafts of cold wind room sets up the aspiration channel of third scum pipe one end is kept away from to the hopper that induced drafts, with the air exhauster that the aspiration channel is fixed and communicate sets up the air-out pipe of aspiration channel one end is kept away from to the air exhauster, sets up at the rose water tank that the air exhauster one end was kept away from to the play tuber pipe, sets up exhaust pipe on the rose water tank.

2. The submerged cooled roasting slagging system of claim 1, wherein: the top of filtering water tank is provided with sealed lid, the one end that goes out the tuber pipe runs through sealed lid from top to bottom, and extend to below filtering water tank's the liquid level, the lower extreme of exhaust pipe communicates through sealed lid and filtering water tank's inside, the lower extreme of exhaust pipe is located more than filtering water tank's the liquid level.

3. The submerged cooled roasting slagging system of claim 1, wherein: a filter screen is fixedly arranged on the exhaust pipe.

4. The submerged cooled roasting slagging system of claim 1, wherein: and a first slag discharge valve is fixedly arranged on the first slag discharge pipe.

5. The submerged cooled roasting slagging system of claim 1, wherein: the cold sediment storehouse of high temperature section includes the shell, sets up the inside inner shell of shell sets up cooling water cavity between shell and the inner shell sets up the inside slag charge chamber of inner shell sets up shell one side, with the inlet tube of cooling water cavity intercommunication sets up the shell is kept away from inlet tube one side, is located inlet tube top, and with the outlet pipe of cooling water cavity intercommunication.

6. The submerged cooled roasting slagging system of claim 1, wherein: and a second slag discharge valve is fixedly arranged on the second slag discharge pipe.

7. The submerged cooled roasting slagging system of claim 1, wherein: and a third slag discharge valve is fixedly arranged on the third slag discharge pipe.

8. The submerged cooled roasting slagging system of claim 1, wherein: conveying mechanism include driving motor, with driving motor's output fixed connection's action wheel, with from the driving wheel that the action wheel is connected, the action wheel passes through the conveyer belt and is connected with from the driving wheel transmission, action wheel and from driving wheel all through installation pole fixed mounting subaerial.