CN217559846U

CN217559846U - Tail gas combustion device

Info

Publication number: CN217559846U
Application number: CN202221689787.3U
Authority: CN
Inventors: 温正坤; 谭爱平; 尹磊; 尹镇培
Original assignee: Guangdong Zhongda Intelligent Technology Co Ltd
Current assignee: Guangdong Zhongda Intelligent Technology Co Ltd
Priority date: 2022-07-01
Filing date: 2022-07-01
Publication date: 2022-10-11
Anticipated expiration: 2032-07-01

Abstract

The utility model discloses a tail gas combustion device, which comprises a cylinder body, a heating device, a first heat exchanger and a combustion device, wherein a cavity, an air inlet channel and an air outlet channel are arranged in the cylinder body; the cavity is internally provided with a conveying channel and a combustion chamber, the conveying channel is respectively communicated with the air inlet channel and the combustion chamber, the combustion device is arranged in the combustion chamber, an outlet of the combustion chamber is communicated with the air outlet channel, and the air outlet channel is communicated with the first heat exchanger, so that the gas discharged from the air outlet channel exchanges heat with the gas entering from the air inlet channel. The utility model discloses tail gas burner can be to the particulate matter preheating treatment in the tail gas before the burning is handled to waste heat after the usable tail gas burning preheats the tail gas of new entering, thereby improves the heat utilization efficiency, improves the efficiency of burning processing, practices thrift the energy consumption.

Description

Tail gas combustion device

Technical Field

The utility model relates to a tail gas processing apparatus especially relates to a tail gas combustion apparatus.

Background

In the process of processing the lithium battery cathode material, a large amount of combustible gas can be generated by high-temperature reaction of the material, a large amount of dust is contained, and the environment can be polluted by directly discharging the combustible gas and tail gas mixed with the dust into the atmosphere, so that the health of a human body is influenced. Therefore, it is necessary to treat these tail gases for further emission. The existing tail gas treatment equipment generally directly ignites the gases, decomposes the gases into carbon dioxide and water and then discharges the carbon dioxide and water outwards. However, since these mixed exhaust gases contain particles or dusts, they require more time to heat the impurities for burning, thus resulting in long burning time, low treatment efficiency, and large energy consumption, which is not favorable for energy saving and environmental protection.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a tail gas combustion apparatus, it can be before the burning is handled particulate matter preheating in to tail gas to waste heat after the usable tail gas burning preheats the tail gas of new entering, thereby improves the heat utilization efficiency, improves the efficiency of burning processing, practices thrift the energy consumption.

In order to achieve the above object, the utility model provides a tail gas combustion device includes barrel, generate heat device, first heat exchanger and burner, cavity, inlet channel and gas outlet channel have in the barrel, generate heat device and the first heat exchanger set gradually in the inlet channel along the direction of admitting air; the heating device is used for heating and burning the particulate matters in the tail gas; the cavity is internally provided with a conveying channel, the bottom of the cavity is provided with a combustion chamber, the input end of the conveying channel is communicated with the air inlet channel, the output end of the conveying channel is communicated with the inlet of the combustion chamber, the combustion device is arranged in the combustion chamber, the outlet of the combustion chamber is communicated with the air outlet channel, and the air outlet channel is communicated with the first heat exchanger, so that the air discharged from the air outlet channel is subjected to heat exchange with the air entering from the air inlet channel.

Compared with the prior art, because the utility model discloses inside cavity, inlet channel and the air outlet channel of being equipped with of barrel, and through set gradually in the inlet channel the device that generates heat reaches first heat exchanger from can getting into at tail gas heats tail gas in advance before the cavity for combustible particles in the tail gas is automatic combustion under high temperature heating, consequently can carry out impurity removal treatment to tail gas in advance. In addition, the heating device can also preheat tail gas, and the exhaust channel is communicated with the first heat exchanger through the first heat exchanger, so that the waste heat of the tail gas after combustion in the exhaust channel can be utilized to preheat the newly-entered tail gas, the time of the tail gas entering the combustion chamber and being heated and ignited is greatly shortened, the heat utilization rate is improved, the efficiency of combustion treatment is improved, and the energy consumption is saved.

Preferably, the conveying channel is a spiral channel, and the spiral channel extends downwards in a spiral mode.

Preferably, the air outlet channel is arranged inside the cavity, and the spiral channel is spirally arranged around the air outlet channel.

Specifically, the gas-liquid separator further comprises a second heat exchanger which is arranged in the gas outlet channel, so that combusted gas can exchange heat with gas in the spiral channel. Through setting up spiral channel, and set up the second heat exchanger in the air outlet channel to can utilize the gaseous waste heat after the burning to further heat the gas in the spiral channel, both can effectively tail gas utilization burning produced heat, can accelerate again to newly get into gaseous heating, thereby make tail gas to be shortened greatly entering into the time that the combustion chamber was lighted by the heating, improve the heat utilization efficiency, improve combustion processing's efficiency, practice thrift the energy consumption.

Preferably, the bottom of the combustion chamber is provided with a discharge port. Because the tail gas can produce tiny granule after the burning, these granules fall under the effect of gravity, can't go up to get into the air outlet channel, can pile up at the bottom of combustion chamber after a period of time, consequently, set up the discharge port can be with these particulate matters quick discharge the combustion chamber, avoid piling up in the combustion chamber.

Preferably, the outer side wall of the cylinder body is provided with a first pressure relief opening, and the first pressure relief opening is provided with a first pressure relief valve. When the air pressure in the cylinder reaches a set value, the first pressure relief opening is opened to relieve pressure, so that the situation that the air pressure in the cylinder is too high can be avoided, and the running stability and safety of equipment are improved.

Preferably, a second pressure relief opening is formed in the top of the cylinder, and a second pressure relief valve is arranged on the second pressure relief opening. When the air pressure in the cylinder reaches a set value, the second pressure relief opening is opened to relieve pressure, so that the situation that the air pressure in the cylinder is too high can be avoided, and the running stability and safety of equipment are improved.

Preferably, the combustion device is a heating wire.

Drawings

Fig. 1 is a perspective view of the tail gas combustion device of the present invention.

Fig. 2 is a side view of the tail gas combustion device of the present invention.

Fig. 3 is a top view of the tail gas combustion device of the present invention.

Fig. 4 is a sectional view of the tail gas combustion device of the present invention.

Detailed Description

In order to explain technical contents, structural features, and effects achieved by the present invention in detail, the following description is given in conjunction with the embodiments and the accompanying drawings.

As shown in fig. 1 to 4, the tail gas combustion device 100 of the present invention includes a cylinder 1, a heating device 2, a first heat exchanger 3 and a combustion device 4, wherein the cylinder 1 has a cavity 11, an air inlet channel 12 and an air outlet channel 13 inside, and the heating device 2 and the first heat exchanger 3 are sequentially disposed in the air inlet channel 12 along an air inlet direction; the heating device 2 is used for heating and burning particulate matters in the tail gas; the combustion device 4 is a heating wire or a heating net arranged in the air inlet passage 12. And a conveying channel is arranged in the cavity 11, and the conveying direction of the conveying channel is conveyed from the upper end to the lower end of the cavity 11. The bottom of the cavity 11 is provided with a combustion chamber 112, the input end of the conveying channel is communicated with the air inlet channel 12, and the output end of the conveying channel is communicated with the inlet of the combustion chamber 112. The conveying channel is a spiral channel 111, and the spiral channel 111 extends downwards in a spiral shape. The air outlet channel 13 is disposed inside the cavity 11 and is coaxial with a central axis of the cavity 11, and the spiral channel 111 is spirally disposed downward around the air outlet channel 13. The combustion device 4 is arranged in the combustion chamber 112 and is opposite to the inlet of the air outlet channel 13, and the outlet of the combustion chamber 112 is positioned right above the combustion device 4. The outlet of the combustion chamber 112 is communicated with the gas outlet channel 13, and the gas outlet channel 13 is communicated with the first heat exchanger 3, so that the gas discharged from the gas outlet channel 13 is heat-exchanged with the gas entering from the gas inlet channel 12.

Referring to fig. 3 and 4, the tail gas combustion device 100 further includes a second heat exchanger 5, and the second heat exchanger 5 is disposed in the gas outlet channel 13, so that the combusted gas can exchange heat with the gas in the spiral channel 111. Through setting up spiral passageway 111, and set up second heat exchanger 5 in giving vent to anger the passageway 13 to can utilize the gaseous waste heat after the burning to further heat the gas in spiral passageway 111, both can effectively utilize the produced heat of tail gas burning, can accelerate again to newly get into gas heating, thereby make tail gas enter into combustion chamber 112 and heated the time of lighting and shorten greatly, improve the heat utilization efficiency, improve the efficiency of burning processing, practice thrift the energy consumption.

Referring to fig. 4, the bottom of the combustion chamber 112 is provided with an exhaust port 113. Since the exhaust gas after combustion generates fine particles, which fall under the action of gravity and cannot enter the air outlet channel 13 upwards, and may be accumulated at the bottom of the combustion chamber 112 after a period of time, the exhaust port 113 is provided to rapidly exhaust the particles out of the combustion chamber 112, so as to avoid accumulation in the combustion chamber 112.

As shown in fig. 2 and 4, a first pressure relief opening 14 is formed in an outer side wall of the cylinder 1, and a first pressure relief valve 6 is arranged on the first pressure relief opening 14. When the air pressure in the cylinder 1 reaches a set value, the first pressure relief opening 14 is opened to relieve the pressure, so that the phenomenon that the air pressure in the cylinder 1 is too high can be avoided, and the running stability and safety of equipment are improved. The top of barrel 1 is equipped with second pressure release mouth 15, be equipped with second pressure release valve 7 on the second pressure release mouth 15. When the air pressure in the cylinder 1 reaches a set value, the second pressure relief opening 15 is opened to relieve the pressure, so that the situation that the air pressure in the cylinder 1 is too high can be avoided, and the stability and the safety of the operation of equipment are improved. The first pressure relief valve 6 and the second pressure relief valve 7 are valves which can be automatically closed under the action of gravity, and the pressure exceeds a certain value, so that the pressure is relieved to push the valves open, and the valves are automatically closed below the pressure.

In combination with the above description and with reference to fig. 3 and fig. 4, the following describes the operation principle of the tail gas combustion device 100 in detail as follows:

firstly, the heating device 2 is started to heat the heating device 2, meanwhile, tail gas is introduced into the air inlet channel 12, the tail gas is heated by the heating device 2 after passing through the heating device 2 to be rapidly heated, and partial particles or dust in the tail gas are heated and then combusted. After that, the tail gas passes through the first heat exchanger 3, enters the spiral channel 111, and is conveyed downwards along the spiral channel 111. Then, the exhaust gas enters the combustion chamber 112, the combustion device 4 ignites and burns the exhaust gas, and the exhaust gas is burnt and converted into carbon dioxide and water in the combustion chamber 112 and then discharged from the gas outlet channel 13. When the exhaust gas is discharged after combustion, the exhaust gas with a large amount of waste heat first passes through the second heat exchanger 5, the exhaust gas side exchanges heat with the exhaust gas passing through the spiral channel 111 in the second heat exchanger 5, the combusted exhaust gas is cooled, and the exhaust gas passing through the spiral channel 111 is further heated. After that, the combusted tail gas continues to be discharged along the gas outlet channel 13 and reaches the first heat exchanger 3, and the tail gas side exchanges heat with the tail gas newly entering the gas inlet channel 12 again in the second heat exchanger 5, so that the tail gas newly entering the gas inlet channel 12 is preheated. After heat exchange, the burned tail gas is further cooled and finally output outwards.

Compared with the prior art, because the utility model discloses 1 inside cavity 11, inlet channel 12 and the passageway of giving vent to anger 13 of being equipped with of barrel, and through set gradually in the inlet channel 12 generate heat device 2 and first heat exchanger 3 from can getting into at tail gas heat tail gas before the cavity 11 in advance for combustible particles thing in the tail gas is automatic combustion under high temperature heating, consequently can carry out impurity removal treatment to tail gas in advance. In addition, the heating device 2 can also preheat tail gas, and through the arrangement of the first heat exchanger 3, the air outlet channel 13 is communicated with the first heat exchanger 3, so that the waste heat of the tail gas after combustion in the air outlet channel 13 can be utilized to preheat the newly-entered tail gas. In addition, by arranging the spiral channel 111 and the second heat exchanger 5 on the air outlet channel 13, the waste heat of the combusted tail gas is heated by the second heat exchanger to the newly-entered tail gas, so that the temperature of the tail gas is greatly improved before the tail gas enters the combustion chamber 112, the time of heating and ignition after the tail gas enters the combustion chamber 112 is greatly shortened, the heat utilization rate is effectively improved, the efficiency of combustion treatment is improved, and the energy consumption is saved.

The structure of the combustion device 4, the first heat exchanger 3 and the second heat exchanger 5 related to the tail gas combustion device 100 of the present invention is well known to those skilled in the art, and will not be described in detail herein.

The above disclosure is only a preferred embodiment of the present invention, and certainly, the scope of the present invention should not be limited thereto, and therefore, the scope of the present invention is not limited to the above embodiments.

Claims

1. The utility model provides a tail gas burner which characterized in that: the heat-generating device and the first heat exchanger are sequentially arranged in the air inlet channel along the air inlet direction; the heating device is used for heating and burning the particulate matters in the tail gas; the cavity is internally provided with a conveying channel, the bottom of the cavity is provided with a combustion chamber, the input end of the conveying channel is communicated with the air inlet channel, the output end of the conveying channel is communicated with the inlet of the combustion chamber, the combustion device is arranged in the combustion chamber, the outlet of the combustion chamber is communicated with the air outlet channel, and the air outlet channel is communicated with the first heat exchanger, so that the air discharged from the air outlet channel is subjected to heat exchange with the air entering from the air inlet channel.

2. The exhaust gas combustion device according to claim 1, wherein: the conveying channel is a spiral channel, and the spiral channel extends downwards in a spiral mode.

3. The exhaust gas combustion device according to claim 2, wherein: the air outlet channel is arranged in the cavity, and the spiral channel is spirally arranged around the air outlet channel.

4. The exhaust gas combustion device according to claim 3, wherein: the gas outlet device also comprises a second heat exchanger which is arranged in the gas outlet channel so that the combusted gas can exchange heat with the gas in the spiral channel.

5. The exhaust gas combustion device according to claim 1, wherein: and the bottom of the combustion chamber is provided with a discharge port.

6. The exhaust gas combustion device according to claim 1, wherein: the outer side wall of the barrel is provided with a first pressure relief opening, and a first pressure relief valve is arranged on the first pressure relief opening.

7. The exhaust gas combustion device according to claim 1, wherein: and a second pressure relief opening is formed in the top of the cylinder body, and a second pressure relief valve is arranged on the second pressure relief opening.

8. The exhaust gas combustion device according to claim 1, wherein: the combustion device is a heating wire.