System for treating dust-containing high-temperature tail gas and heating boiler water

Abstract

The utility model relates to the technical field of tail gas treatment, and particularly discloses a system for treating dust-containing high-temperature tail gas and heating boiler water, which comprises a dust removal unit, a water cavity and a heating water storage tank, the dust removal unit comprises a plurality of dust removers and a plurality of air pipes which are communicated in sequence; any two adjacent dust removers are communicated with each other through the air pipe; the air pipe extends into the water cavity; and a water outlet of the water cavity is connected with a water inlet of the heating water storage tank. According to the scheme, the gas subjected to dust removal by the dust remover can flow through the water cavity to exchange heat with the liquid in the water cavity, so that the gas subjected to dust removal is cooled, and the high-temperature gas is prevented from being directly discharged into the atmosphere; meanwhile, the multiple dust removers can sequentially remove dust for the tail gas, the temperature of the gas subjected to dust removal is gradually reduced, the operation power of the single dust remover is reduced, the dust removal and cooling effects of the gas are improved, and meanwhile the problem that the service life of the single dust remover is shortened due to continuous high-power operation of the single dust remover can be solved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of tail gas treatment, in particular to a system for treating high-temperature tail gas containing dust and for heating boiler water. BACKGROUND

[0002] When treating tail gas containing dust, a bag filter is often used to remove dust from the tail gas. In existing tail gas treatment devices, the dust-free tail gas after treatment is generally directly discharged into the atmosphere, which can affect the atmospheric environment. Meanwhile, the temperature of the tail gas containing dust is relatively high, and the components of the bag filter are prone to damage when it is used to treat the tail gas containing dust for a long time at high power, thereby reducing the service life of the bag filter. CONTENT OF THE UTILITY MODEL

[0003] Therefore, the present application aims to provide a system for treating high-temperature tail gas containing dust and for heating boiler water, which can solve the problems of high exhaust temperature and low service life of the bag filter in existing tail gas treatment devices.

[0004] To achieve the above technical purpose, the present application provides a system for treating high-temperature tail gas containing dust and for heating boiler water, which comprises a dust removal unit, a water cavity, and a heating water storage tank.

[0005] The dust removal unit comprises a plurality of dust collectors and a plurality of air pipes connected in sequence.

[0006] Any two adjacent dust collectors are connected by the air pipes.

[0007] The air pipes extend into the water cavity.

[0008] The water outlet of the water cavity is connected to the water inlet of the heating water storage tank.

[0009] Further, the water inlet of the water cavity is connected to the first water outlet of the heating water storage tank.

[0010] Further, a temperature monitor is connected in the heating water storage tank.

[0011] The second water outlet of the heating water storage tank is connected to a boiler.

[0012] Further, the second water outlet of the heating water storage tank is provided with a boiler pump body.

[0013] The first water outlet of the heating water storage tank is provided with a circulating pump body.

[0014] Further, the heating water storage tank comprises a cold water cavity and a warm water cavity.

[0015] The water outlet of the cold water cavity is connected to the water inlet of the water cavity.

[0016] The water inlet of the warm water cavity is connected to the water outlet of the water cavity.

[0017] A heat insulation layer is arranged between the cold water cavity and the warm water cavity.

[0018] Further, a dust removal fan is further included.

[0019] The air outlet of the dust removal unit is connected to the air inlet of the dust removal fan.

[0020] Further, the dust remover is a bag-type dust remover.

[0021] Further, the dust removal unit includes four dust removers.

[0022] Further, the air pipe is a carbon steel pipe.

[0023] Further, the dust removal unit further includes a plurality of dust removal cabinets.

[0024] The dust removal cabinet is a funnel-shaped cavity.

[0025] The dust removers are arranged in the dust removal cabinets one by one.

[0026] As can be seen from the above technical solution, the application provides a system for treating dust-containing high-temperature tail gas and boiler water temperature rising, which includes a dust removal unit, a water cavity and a rising water storage tank. The dust removal unit includes a plurality of dust removers and a plurality of air pipes. Any two adjacent dust removers are connected through the air pipe. The air pipe extends into the water cavity. The water outlet of the water cavity is connected to the water inlet of the rising water storage tank.

[0027] In the present solution, the gas after being treated by the dust remover can flow through the water cavity and exchange heat with the liquid in the water cavity, so as to realize the cooling of the gas after being treated by the dust remover and avoid the direct discharge of the high-temperature gas into the atmosphere. At the same time, the plurality of dust removers can treat the tail gas one by one, so as to gradually reduce the temperature of the gas after being treated by the dust remover and reduce the operation power of a single dust remover. In this way, the dust removal and cooling effect of the gas can be improved, and the problem of the reduction of the service life of the single dust remover due to the continuous high-power operation of the single dust remover can be avoided. BRIEF DESCRIPTION OF DRAWINGS

[0028] In order to more clearly illustrate the technical solutions in the embodiments of the application or the prior art, the drawings needed to be used in the embodiments or the prior art description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the application, and those skilled in the art can obtain other drawings according to these drawings without any creative labor.

[0029] Figure 1A line frame schematic diagram of a system for processing high-temperature tail gas containing dust and boiler water temperature rising is provided in the embodiments of the present application.

[0030] In the figure: 10, dust removal unit; 11, dust collector; 12, air pipe; 13, dust removal machine box; 20, water cavity; 30, temperature rising water storage tank; 31, circulating pump body; 32, boiler pump body; 40, dust removal fan. DETAILED DESCRIPTION

[0031] The technical solutions of the embodiments of the present application will be described clearly and completely in combination with the drawings. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the present application.

[0032] In the description of the embodiments of the present application, it should be noted that the orientations or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the embodiments of the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the embodiments of the present application. In addition, the terms "first", "second", "third" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0033] In the description of the embodiments of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connection" should be understood broadly, for example, it can be fixed connection, or replaceable connection, or integral connection, it can be mechanical connection, or electrical connection, it can be direct connection, or indirect connection through an intermediate medium, or internal communication of two elements. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of the present application according to the specific circumstances.

[0034] Please refer to Figure 1 The system for processing high-temperature tail gas containing dust and boiler water temperature rising provided in the embodiments of the present application comprises a dust removal unit 10, a water cavity 20 and a temperature rising water storage tank 30. The dust removal unit 10 comprises a plurality of dust collectors 11 and a plurality of air pipes 12 which are sequentially connected. Any two adjacent dust collectors 11 are connected through the air pipe 12. The air pipe 12 extends into the water cavity 20. The water outlet of the water cavity 20 is connected to the water inlet of the temperature rising water storage tank 30.

[0035] The multiple dust collectors 11 are sequentially connected, which means that the dust collector 11 is in communication with the adjacent dust collector 11. In this embodiment, the dust removal unit 10 includes four dust collectors 11, for example. The first dust collector 11 is used as a first-stage dust removal structure, and its air inlet is connected to an external tail gas inlet. The second dust collector 11 is used as a second-stage dust removal structure, and its air inlet is connected to the air outlet of the first dust collector 11. The third dust collector 11 is used as a third-stage dust removal structure, and its air inlet is connected to the air outlet of the second dust collector 11. The fourth dust collector 11 is used as a fourth-stage dust removal structure, and its air inlet is connected to the air outlet of the third dust collector 11. Its air outlet is used as a tail gas outlet.

[0036] Based on the above, in this embodiment, the multiple dust collectors 11 can form a multi-stage dust removal structure, thereby sequentially removing dust from the tail gas to ensure the treatment effect of the tail gas and reduce the operating power of a single dust collector 11. In this embodiment, the adjacent dust collectors 11 are connected by the air pipe 12, so that the water cavity 20 can cool the tail gas in the air pipe 12. On the one hand, this can reduce the air inlet temperature of the dust collectors 11 except the first dust collector 11, thereby prolonging the service life of these dust collectors 11. On the other hand, this can gradually reduce the temperature of the tail gas, thereby ensuring that the temperature of the tail gas after the final treatment is reduced to a lower temperature, thereby reducing the influence of the exhaust gas temperature on the atmospheric environment.

[0037] It should be noted that in this embodiment, the water outlet of the water cavity 20 is connected to the heating water storage tank 30, so that the heated water after heat exchange can be supplied to the heating water storage tank 30 and output from the heating water storage tank 30 to the boiler as boiler water, thereby reducing the energy consumption of the boiler. The water inlet of the water cavity 20 can be connected to other water inlets, which can supply cold water to the water cavity 20 to achieve heat exchange with the tail gas.

[0038] In one embodiment, the water inlet of the water cavity 20 is connected to the first water outlet of the heating water storage tank 30. That is, the water in the heating water storage tank 30 can be circulated in the water cavity 20 and the heating water storage tank 30. Correspondingly, the heating water storage tank 30 can be connected to a cold water inlet. When the water in the heating water storage tank 30 reaches a preset condition after circulation and heat exchange, the water outlet of the heating water storage tank 30 can be opened to discharge the water in the heating water storage tank 30 into the boiler, and the cold water inlet of the heating water storage tank 30 is opened to supplement the cold water in the heating water storage tank 30.

[0039] As an implementation, the above-mentioned preset condition can be a preset circulation time of the water in the heating water storage tank 30. That is, after the cold water is injected into the heating water storage tank 30, the cold water inlet is closed, and after the water circulates for a preset time, for example, 10 minutes, the water outlet of the heating water storage tank 30 is opened, and after the water is discharged into the boiler, the cold water inlet is opened again.

[0040] In another embodiment, a temperature monitor 31 is connected to the heated water tank 30; the second water outlet of the heated water tank 30 is connected to the boiler.

[0041] The temperature monitor 31 can continuously monitor the temperature in the heated water tank 30; when the temperature in the heated water tank 30 reaches a preset temperature, the water outlet of the heated water tank 30 is opened, and after the water is discharged to the boiler, the cold water inlet of the heated water tank 30 is opened again.

[0042] In a more specific embodiment, the second water outlet of the heated water tank 30 is provided with a boiler pump body 32; the first water outlet of the heated water tank 30 is provided with a circulating pump body 33.

[0043] When the circulating pump body 33 is started, it can draw the water in the heated water tank 30 into the water cavity 20 to realize the circulation of the heat exchange fluid. When the boiler pump body 32 is started, it can draw the water in the heated water tank 30 into the boiler to empty the heated water tank 30.

[0044] In another embodiment provided in the present application, the heated water tank 30 includes a cold water cavity and a warm water cavity; the water outlet of the cold water cavity is connected to the water inlet of the water cavity 20; the water inlet of the warm water cavity is connected to the water outlet of the water cavity 20; a heat insulation layer is provided between the cold water cavity and the warm water cavity.

[0045] Specifically, the cold water cavity and the warm water cavity in the heated water tank 30 are separated from each other to reduce heat exchange between them. In the process of treating tail gas, the water in the cold water cavity is drawn into the water cavity 20 to exchange heat with the tail gas, and then flows into the warm water cavity from the water outlet of the water cavity and is delivered to the boiler. The heated water tank 30 provided in the present embodiment can also realize the functions of providing cold water for the water cavity 20 and providing hot water for the boiler.

[0046] Further, a dust removal fan 40 is included; the gas outlet of the dust removal unit 10 is connected to the gas inlet of the dust removal fan 40; the dust removal fan 40 can be connected to the gas outlet of the fourth dust remover 11 to draw the gas in the dust remover 11.

[0047] As an embodiment, the dust remover 11 is a bag-type dust remover.

[0048] As an embodiment, the air pipe 12 is made of carbon steel.

[0049] In an embodiment, the dust removal unit 10 further includes a plurality of dust removal boxes 13; the dust removal boxes 13 are funnel-shaped cavities; the dust removers 11 are arranged one by one in the dust removal boxes 13.

[0050] The dust removal machine box 13 is made of high-temperature-resistant carbon steel, which is mainly used for storing filtered dust. When the high-temperature dust-containing waste gas enters the dust removal funnel chamber, it will be filtered through the bag dust collector. The filtered tail gas is discharged through the dust removal fan 40, and the dust is blocked outside and left in the dust removal funnel chamber.

[0051] The above is the preferred embodiment of the present application and is not used to limit the present application. Although the present application is described in detail with reference to the examples, those skilled in the art can still modify the technical solutions recorded in the foregoing examples or make equivalent replacement for part of the technical features, but any modification, equivalent replacement, improvement, etc. within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A system for treating a dust-laden high-temperature exhaust gas and for heating boiler water, characterized by The utility model relates to a dust removal system, which comprises: a dust removal unit (10), a water cavity (20), and a temperature-increasing water storage tank (30); the dust removal unit (10) comprises a plurality of dust collectors (11) and a plurality of air pipes (12) connected in sequence; any two adjacent dust collectors (11) are connected through the air pipe (12); the air pipe (12) extends into the water cavity (20); the water outlet of the water cavity (20) is connected to the water inlet of the temperature-increasing water storage tank (30).

2. The system for treating a high-temperature dust-containing exhaust gas and heating boiler water according to claim 1, characterized in that, the water inlet of the water cavity (20) is connected to the first water outlet of the temperature-increasing water storage tank (30).

3. The system for treating a high-temperature dust-containing exhaust gas and heating boiler water according to claim 2, characterized in that, a temperature monitor (31) is connected to the temperature-increasing water storage tank (30); the second water outlet of the temperature-increasing water storage tank (30) is connected to a boiler.

4. The system for treating a high-temperature dust-containing exhaust gas and heating boiler water according to claim 3, characterized in that, the second water outlet of the temperature-increasing water storage tank (30) is provided with a boiler pump body (32); the first water outlet of the temperature-increasing water storage tank (30) is provided with a circulating pump body (33).

5. The system for treating a high temperature dust containing exhaust gas and heating boiler water according to claim 1, wherein the temperature-increasing water storage tank (30) comprises a cold water cavity and a warm water cavity; the water outlet of the cold water cavity is connected to the water inlet of the water cavity (20); the water inlet of the warm water cavity is connected to the water outlet of the water cavity (20); a heat insulation layer is arranged between the cold water cavity and the warm water cavity.

6. The system for treating a high temperature dust containing exhaust gas and heating boiler water according to claim 1, wherein a dust removal fan (40) is further included; the air outlet of the dust removal unit (10) is connected to the air inlet of the dust removal fan (40).

7. The system for treating a high temperature dust containing exhaust gas and heating boiler water according to claim 1, wherein the dust collector (11) is a bag-type dust collector.

8. The system for treating a high temperature dust containing exhaust gas and heating boiler water according to claim 1, wherein the dust removal unit (10) comprises four dust collectors (11).

9. The system for treating a high temperature dust containing exhaust gas and heating boiler water according to claim 1, wherein the air pipe (12) is a carbon steel pipe.

10. The system for treating a high temperature dust containing exhaust gas and heating boiler water according to claim 1, wherein the dust removal unit (10) further comprises a plurality of dust removal machine boxes (13); the dust removal machine box (13) is a funnel-shaped cavity; the dust collector (11) is arranged in the dust removal machine box (13) one by one.

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