CN214307141U

CN214307141U - Tail gas automatic ignition burner

Info

Publication number: CN214307141U
Application number: CN202023280275.5U
Authority: CN
Inventors: 茆林凤; 张卫卫
Original assignee: Win Tech Environmental Technology Wuxi Co ltd
Current assignee: Win Tech Environmental Technology Wuxi Co ltd
Priority date: 2020-12-30
Filing date: 2020-12-30
Publication date: 2021-09-28
Anticipated expiration: 2030-12-30

Abstract

The utility model provides a tail gas automatic ignition combustion device, which comprises a heating pipe arranged in the vertical direction, wherein the heating pipe comprises a heating wire and heat preservation cotton wrapped outside the heating wire, the inner wall of the heating pipe is enclosed into a combustion chamber, and the heating wire is wrapped on the inner wall of the heating pipe; the top of the combustion chamber is connected with a discharge port, the bottom of the combustion chamber is provided with a waste gas discharge port pipe, the waste gas discharge port pipe extends into the combustion chamber from the bottom of the heating pipe to a certain height, and the bottom of the waste gas discharge port pipe is exposed out of the heating pipe; the bottom of the heating pipe is provided with a gap for leading air or high-concentration oxygen to enter the combustion chamber; the top of the exhaust outlet pipe is provided with a top plate, and the top plate is provided with a plurality of small holes; the bottom of the waste gas outlet pipe is communicated with the waste gas inlet. The utility model has the advantages of being simple in structure and convenient in operation, can fully burn the combustible gas composition in the waste gas, all can use under continuity operating mode and intermittent type nature operating mode, can cooperate processing technology such as washing, absorption, improve the exhaust-gas treatment effect.

Description

Tail gas automatic ignition burner

Technical Field

The utility model belongs to chemical machinery and environmental protection field relate to a tail gas processing apparatus, concretely relates to tail gas automatic ignition burner.

Background

In industrial production, waste water and waste gas are generated along with the production of products. Because of the environmental protection requirement, the high-concentration waste gas can not be directly discharged into the atmosphere, and can be discharged only after being treated and the concentration is reduced to meet the discharge standard. In recent years, the national requirements on environmental protection are increasing, and higher requirements on waste gas treatment devices and processes are also put forward.

In the prior art, equipment such as a washing tower, an activated carbon adsorption device and the like are commonly used for treating waste gas to ensure that the waste gas reaches the emission standard, but the equipment is used for treating the waste gas only, so that the treatment efficiency is low, and the operation cost is high. Especially, for the combustible gas component contained in the waste gas, the combustible gas component is firstly combusted, and then the subsequent treatment processes such as washing, adsorption and the like are carried out, so that the treatment efficiency is higher.

The existing equipment for burning combustible gas in waste gas is a combustion furnace, but the combustion furnace has large volume, complex structure and complex use and operation, and can ensure continuous work if the concentration of the burnt gas is not enough and fuel such as natural gas is required to be supplemented in the working process. And the whole combustion process of the combustion furnace is suitable for being used under the continuous working condition and is not suitable for being used under the intermittent working condition.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a tail gas automatic ignition burner, the device convenient operation can fully burn the combustible gas composition in the waste gas, all can use under continuity operating mode and intermittent type nature operating mode, can cooperate processing technology such as washing, absorption, improve the exhaust-gas treatment effect.

In order to achieve the above purpose, the utility model adopts the technical scheme that:

the utility model provides a tail gas automatic ignition combustion device, which comprises a heating pipe arranged in the vertical direction, wherein the heating pipe comprises a heating wire and heat preservation cotton wrapped outside the heating wire, the inner wall of the heating pipe is enclosed into a combustion chamber, and the heating wire is wrapped on the inner wall of the heating pipe; the top of the combustion chamber is connected with the discharge port, and the bottom of the combustion chamber is provided with a discharge port pipe assembly; the exhaust pipe component comprises an exhaust pipe, the exhaust pipe extends into the combustion chamber from the bottom of the heating pipe to a certain height, and the bottom of the exhaust pipe is exposed out of the heating pipe; the bottom of the heating pipe is provided with a gap for leading air or high-concentration oxygen to enter the combustion chamber; the top of the exhaust outlet pipe is provided with a top plate, and the top plate is provided with a plurality of small holes; the bottom of the waste gas outlet pipe is communicated with the waste gas inlet.

The exhaust gas outlet pipe is fixed at the bottom of the combustion chamber in an eccentric arrangement mode, so that one side of the exhaust gas outlet pipe is close to the heating wire.

The small holes are densely arranged on one side of the exhaust outlet pipe close to the heating wire.

All the small holes are arranged on the same circumference which is concentric with the top plate of the exhaust outlet pipe and is close to the edge of the top plate.

The exhaust port pipe assembly further comprises a liquid receiving disc, and the liquid receiving disc is sleeved on the outer side of the exhaust port pipe and fixed to the lower portion of the exhaust port pipe.

The liquid receiving disc and the waste gas outlet pipe extend into the combustion chamber from the bottom of the heating pipe to a certain height together, and the bottom of the liquid receiving disc is exposed out of the heating pipe.

The liquid receiving disc is fixed at the bottom of the combustion chamber in an eccentric arrangement mode, and one side of the liquid receiving disc is close to the heating wire.

The waste gas exhaust pipe is sleeved on the inner side of the liquid receiving disc in an eccentric arrangement mode, one side of the waste gas exhaust pipe is close to the heat source side of the liquid receiving disc, and the heat source side of the liquid receiving disc is the side, close to the heating wire, of the liquid receiving disc.

And a gap is reserved between the liquid receiving disc and the inner wall of the heating pipe.

The pipe diameter of the waste gas outlet pipe is larger than that of the waste gas inlet.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model provides a tail gas automatic ignition burner, utilize the heater strip can make the temperature in the combustion chamber rise to more than 750 ℃, be higher than combustible gas's ignition in common industrial waste gas, when combustible gas concentration in waste gas has reached spontaneous combustion concentration, let in waste gas exhaust pipe with it in, oxygen contact with in the air burns in getting into the combustion chamber through the aperture, combustible gas in the waste gas is direct to be lighted by the heating pipe heating, need not to use any auxiliary fuel, during air accessible clearance gets into the combustion chamber, make waste gas fully burn, according to operating condition, it is combustion-supporting to let in high concentration oxygen in the combustion chamber through the clearance that can also be selective, reach better combustion effect. The arrangement of the small holes improves the combustion safety, the flame is a cluster of small flames during combustion, and the size of the flame can be controlled by adjusting the air inlet flow and the air inlet pressure of waste gas; otherwise, if the top plate of the exhaust gas outlet pipe is removed, not only the flame is too large during combustion, but also the exhaust gas inlet end is easy to be in series combustion and even explode. The utility model discloses in keep warm to the heater strip through the heat preservation cotton, can be with the cotton enough thickness that sets up that keeps warm to reduce thermal loss as far as possible, thereby practice thrift the electric energy and practice thrift operating cost. The utility model has the advantages of being simple in structure and convenient in operation, can fully burn the combustible gas composition in the waste gas, all can use under continuity operating mode and intermittent type nature operating mode, can cooperate processing technology such as washing, absorption, improve the exhaust-gas treatment effect.

Further, the utility model discloses in because exhaust vent pipe stretches into the combustion chamber take the altitude from the bottom of heating pipe, and the pipe diameter of exhaust vent pipe is greater than the pipe diameter of waste gas import, waste gas gets into the exhaust vent pipe with higher pressure after the one side obtain the buffering, the great exhaust vent pipe of on the other hand pipe diameter makes being heated of waste gas more even, can guarantee that waste gas evenly preheats in exhaust vent pipe, then discharges the burning through the aperture again for the combustion effect is better. The utility model discloses in set up and connect the liquid dish, the liquid that produces among the liquid and the waste gas combustion process that smuggle when can admitting air with waste gas is collected, because the upper portion that connects the liquid dish is located the heating tube, its temperature is enough to make the liquid of collecting also burn, make the gas and the liquid that can burn like this all obtain abundant burning, as for the part that can not burn in the liquid also all vaporize under the high temperature, can carry out the advanced treatment in getting into next stage treatment process along with the gas after the burning together. The bottom parts of the waste gas outlet pipe and the liquid receiving disc are exposed out of the heating pipe, so that the risks of explosion and the like caused by overhigh temperature of waste gas and liquid in the waste gas outlet pipe and the liquid receiving disc are prevented, and the safety of combustion is improved. The utility model discloses well meet eccentric settings and the aperture of liquid dish and waste gas row oral siphon and set up the position all in order to let the aperture be close to the heater strip as far as possible, because the consideration of preceding security, it is below the spontaneous combustion temperature to guarantee waste gas row oral siphon's waste gas, and in case discharge back waste gas through the aperture needs rise rapidly to above the spontaneous combustion temperature, just can guarantee abundant burning, so make the aperture be close to the heater strip as far as possible, heat up with the fastest speed after making waste gas get into the combustion chamber and burn, make the burning more abundant, the combustible gas residual quantity that gets into next-level processing still less, the improvement treatment effect.

Drawings

Fig. 1 is a schematic structural view of an automatic tail gas ignition combustion device provided by the present invention, which is a front view and a sectional view;

fig. 2 is a top view of the automatic tail gas ignition combustion device provided by the present invention;

wherein: 1 is the heating pipe, 2 is the heater strip, 3 is the heat preservation cotton, 4 is exhaust outlet pipe, 5 is the liquid receiving dish, 6 is the aperture, 7 is the clearance, 8 is the waste gas import, 9 is the combustion chamber, 10 is the discharge port.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Referring to fig. 1 and fig. 2, the utility model provides a tail gas automatic ignition burner, including the heating pipe 1 (the some firearm promptly) that vertical direction set up, heating pipe 1 passes through the fixing base to be fixed in the casing, and heating pipe 1 includes heater strip 2 and wraps up at the cotton 3 of the outside heat preservation of heater strip 2, and the inner wall of heating pipe 1 encloses into combustion chamber 9, and heater strip 2 wraps up on the inner wall of heating pipe 1. The top of combustion chamber 9 links to each other with discharge port 10, and the bottom of combustion chamber 9 is equipped with row's mouth pipe assembly, arranges the mouth pipe assembly and falls into inside and outside two part structure, and inside is waste gas row mouth pipe 4, and the outside is for connecing liquid dish 5. The liquid receiving disc 5 can be sleeved outside the exhaust gas outlet pipe 4 by adopting modes such as welding and the like and is fixed at the lower part of the exhaust gas outlet pipe 4, the upper parts of the exhaust gas outlet pipe 4 and the liquid receiving disc 5 are positioned in the heating pipe 1, the bottoms of the exhaust gas outlet pipe 4 and the liquid receiving disc 5 are exposed out of the heating pipe 1, namely the exhaust gas outlet pipe 4 and the liquid receiving disc 5 extend into the combustion chamber 9 from the bottom of the heating pipe 1 by a certain height. A gap 7 is left between the liquid receiving disc 5 and the inner wall of the heating pipe 1 for allowing air or high-concentration oxygen to enter a combustion chamber 9. The top of exhaust gas outlet pipe 4 is equipped with the roof, has seted up a plurality of apertures 6 on the roof, and the bottom and the waste gas import 8 of exhaust gas outlet pipe 4 are linked together, and the pipe diameter of exhaust gas outlet pipe 4 is greater than the pipe diameter of waste gas import 8. The waste gas outlet pipe 4 and the liquid receiving disc 5 are fixed at the bottom of the combustion chamber 9 in an eccentric arrangement mode, one side of the waste gas outlet pipe 4 is close to the heating wire 2, all the small holes 6 are densely arranged at one side of the waste gas outlet pipe 4 close to the heating wire 2, and all the small holes 6 are arranged on the same circumference which is concentric with a top plate of the waste gas outlet pipe 4 and close to the edge of the top plate.

The utility model discloses a working process does: the heating wire 2 is started to preheat, so that the temperature in the combustion chamber 9 reaches a preset value. After the waste gas is treated by the previous treatment process, the concentration of combustible gas in the waste gas reaches the concentration of spontaneous combustion, a valve is opened to enable the waste gas to enter the waste gas outlet pipe 4 through the waste gas inlet 8, the waste gas with higher pressure enters the waste gas outlet pipe 4 to be buffered, then the waste gas is discharged from a plurality of small holes 6 on the top plate of the waste gas outlet pipe 4, and the waste gas is contacted with oxygen in the air in the combustion chamber 9 to be combusted. In addition, during the process of the waste gas entering the waste gas outlet pipe 4, liquid remained in the previous treatment process may be entrained, and liquid may be generated during the combustion process of the waste gas, and the liquid is collected in the liquid receiving disc 5 for combustion. Air or a high concentration of oxygen may pass through the gap 7 into the combustion chamber 9 to support combustion. The combusted gas enters the subsequent treatment equipment through the discharge port 10 for the next-stage treatment.

The following provides a case for the specific use of the tail gas automatic ignition combustion device, which is right for further explanation of the utility model.

Add in active carbon desorption treatment process flow the utility model discloses a tail gas automatic ignition burner carries out tail gas treatment, specifically is: and desorbing and activating the activated carbon subjected to saturated adsorption in the carbon tank, wherein the gas pressure in the carbon tank gradually rises along with the increase of desorption time and the rise of the temperature in the carbon tank, and in the process of beginning the desorption of the activated carbon, when the pressure in the carbon tank reaches 50kpa, the corresponding valve is opened, so that the waste gas in the carbon tank enters the tail gas automatic ignition combustion device through the waste gas inlet 8 to be combusted, and the combustion time is about 2-3 minutes. In the continuous desorption process of the activated carbon, along with the increase of the temperature in the carbon tank, when the pressure in the carbon tank reaches 35-40 kpa, a corresponding valve needs to be opened, so that the waste gas in the carbon tank enters the tail gas automatic ignition combustion device through the waste gas inlet 8 to be combusted, and the combustion time is about 4-5 minutes. Until the whole active carbon desorption process is finished. And (4) the gas discharged after the combustion of the tail gas automatic ignition combustion device enters a washing tower in the next step for washing and absorption, and is discharged after reaching the standard.

The utility model provides a tail gas automatic ignition burner, easy operation can fully burn the combustible gas composition in the waste gas, can cooperate processing technology such as washing, absorption, improves the exhaust-gas treatment effect. According to the operating condition, the tail gas combustion treatment can be conveniently carried out continuously or intermittently, when the shutdown is needed, only the air inlet valve of the waste gas and the heating switch of the heating wire are needed to be closed, when the shutdown is carried out, the heating switch of the heating wire is firstly opened for preheating, and then the air inlet valve of the waste gas is opened. And can carry out the automatic control of waste gas air inlet valve and heating wire heating switch through automation control equipment and procedure, set up the opening and closing time isoparametric of waste gas air inlet valve and heating wire heating switch according to operating condition, the whole combustion process that can be convenient of control.

The above, only be the utility model discloses a preferred embodiment, it is not right the utility model discloses do any restriction, all according to the utility model discloses the technical entity all still belongs to any simple modification, change and equivalent structure transform that the above embodiment was done the utility model discloses technical scheme's within the scope of protection.

Claims

1. The utility model provides a tail gas automatic ignition burner which characterized in that: the heating device comprises a heating pipe (1) arranged in the vertical direction, wherein the heating pipe (1) comprises a heating wire (2) and heat insulation cotton (3) wrapped outside the heating wire (2), a combustion chamber (9) is enclosed by the inner wall of the heating pipe (1), and the heating wire (2) is wrapped on the inner wall of the heating pipe (1); the top of the combustion chamber (9) is connected with the discharge port (10), and the bottom of the combustion chamber (9) is provided with a discharge port pipe assembly; the exhaust pipe component comprises an exhaust pipe (4), the exhaust pipe (4) extends into the combustion chamber (9) from the bottom of the heating pipe (1) by a certain height, and the bottom of the exhaust pipe (4) is exposed out of the heating pipe (1); the bottom of the heating pipe (1) is provided with a gap (7) for leading air or high-concentration oxygen to enter the combustion chamber (9); a top plate is arranged at the top of the exhaust gas outlet pipe (4), and a plurality of small holes (6) are formed in the top plate; the bottom of the waste gas outlet pipe (4) is communicated with a waste gas inlet (8).

2. The exhaust gas auto-ignition combustion apparatus according to claim 1, characterized in that: the waste gas outlet pipe (4) is fixed at the bottom of the combustion chamber (9) in an eccentric arrangement mode, so that one side of the waste gas outlet pipe (4) is close to the heating wire (2).

3. The exhaust gas auto-ignition combustion apparatus according to claim 2, characterized in that: the small holes (6) are densely arranged on one side of the exhaust outlet pipe (4) close to the heating wire (2).

4. The exhaust gas auto-ignition combustion apparatus according to claim 3, characterized in that: all the small holes (6) are arranged on the same circumference which is concentric with the top plate of the exhaust gas outlet pipe (4) and is close to the edge of the top plate.

5. The exhaust gas automatic ignition combustion apparatus according to any one of claims 1 to 4, characterized in that: the mouth pipe assembly further comprises a liquid receiving disc (5), and the liquid receiving disc (5) is sleeved on the outer side of the exhaust mouth pipe (4) and fixed to the lower portion of the exhaust mouth pipe (4).

6. The exhaust gas auto-ignition combustion apparatus according to claim 5, characterized in that: the liquid receiving disc (5) and the exhaust gas outlet pipe (4) extend into the combustion chamber (9) from the bottom of the heating pipe (1) to a certain height, and the bottom of the liquid receiving disc (5) is exposed out of the heating pipe (1).

7. The exhaust gas auto-ignition combustion apparatus according to claim 5, characterized in that: the liquid receiving disc (5) is fixed at the bottom of the combustion chamber (9) in an eccentric arrangement mode, so that one side of the liquid receiving disc (5) is close to the heating wire (2).

8. The exhaust gas auto-ignition combustion apparatus according to claim 7, characterized in that: the waste gas exhaust pipe (4) is sleeved on the inner side of the liquid receiving disc (5) in an eccentric arrangement mode, one side of the waste gas exhaust pipe (4) is close to the heat source side of the liquid receiving disc (5), and the heat source side of the liquid receiving disc (5) is one side of the liquid receiving disc (5) close to the heating wire (2).

9. The exhaust gas auto-ignition combustion apparatus according to claim 5, characterized in that: a gap (7) is reserved between the liquid receiving disc (5) and the inner wall of the heating pipe (1).

10. The exhaust gas automatic ignition combustion apparatus according to any one of claims 1 to 4, characterized in that: the pipe diameter of the waste gas outlet pipe (4) is larger than that of the waste gas inlet (8).