Efficient electric RTO processing system

Abstract

The utility model discloses an efficient electric RTO treatment system which comprises a first valve, a second valve, a third valve, a mixer, an induced draft fan, RTO equipment and collecting equipment, and the RTO equipment is provided with an air inlet switching valve and an air outlet switching valve; the collecting equipment is provided with a collecting box switching valve and an air outlet, and the air outlet is communicated to the induced draft fan; an air outlet of the collecting device is communicated with the induced draft fan through an air pipe, and an air return adjusting valve is arranged on the air pipe. According to the utility model, the collecting equipment is additionally arranged at the rear end to collect residual tail gas, part of untreated waste gas is collected through the collecting box (collecting equipment), and the collected waste gas is sent to the RTO furnace (RTO equipment) again to be subjected to high-temperature oxidation, so that the overall treatment efficiency of the system is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a RTO treatment equipment, especially a kind of efficient electric RTO processing system, belong to environmental protection equipment technical field. BACKGROUND

[0002] ‌Electrical Regenerative Thermal Oxidizer (RTO) is a kind of waste gas treatment equipment, mainly used for treating volatile organic compounds (VOCs) in industrial waste gas. Electrical RTO is oxidized and decomposed by heating waste gas in high temperature by electric energy, to generate carbon dioxide and water, so as to achieve the purpose of purifying waste gas.

[0003] Electrical RTO is generally used as the main component of the whole treatment system to complete the treatment of waste gas. In the prior art, the treatment system is mainly composed of electrical RTO furnace and auxiliary facilities, and the auxiliary facilities include valves, air pipes, induced draft fans, mixers and chimneys. The electrical RTO furnace is pryingly installed into an integral square structure, and its structure determines that when the inlet and outlet switching valves on the furnace body are switched, part of the waste gas is directly discharged from the chimney without passing through the high-temperature reaction layer. For example, when the waste gas enters the upper heat storage body for preheating, and then is oxidized in the high-temperature reaction layer, and then is discharged through the lower air duct and the chimney. When a cycle ends, the inlet and outlet switching valves on the furnace body need to switch the flow direction of the waste gas, so that the waste gas enters from the lower air duct, and the upper air duct becomes an exhaust. At this time, the waste gas in the upper air duct and the upper heat storage layer is directly discharged from the chimney without high-temperature oxidation reaction. Therefore, the overall treatment efficiency of the electrical RTO furnace is only 98%. In the current situation of increasingly strict environmental emission requirements, the treatment efficiency of 98% cannot meet the requirements in some industries with strict emission requirements. SUMMARY

[0004] The technical problem to be solved by the utility model lies in providing an efficient electrical RTO treatment system to solve the problem of low efficiency of the electrical RTO treatment system.

[0005] The technical problem to be solved by the utility model is solved by the following technical scheme:

[0006] The utility model provides an efficient electrical RTO treatment system, which comprises a first valve, a second valve, a third valve, a mixer, an induced draft fan, an RTO device and a collection device, wherein,

[0007] The RTO device is provided with an inlet switching valve and an outlet switching valve;

[0008] The collection device is provided with a collection tank switching valve, wherein,

[0009] The collection device is further provided with an air outlet, which is communicated with the induced draft fan.

[0010] As a preferred technical scheme of the utility model, the air outlet of the collecting device is communicated to the air guide fan through the air pipe, wherein,

[0011] The air pipe is provided with a return air regulating valve.

[0012] As a preferred technical scheme of the utility model, the collecting device is communicated to the chimney.

[0013] As a preferred technical scheme of the utility model, the RTO device further comprises a heating part, and a first air duct and a second air duct located at the side of the heating part.

[0014] As a preferred technical scheme of the utility model, the air guide fan is communicated to the mixer, wherein,

[0015] The mixer is communicated to the filtering mechanism and the air inlet pipeline, and the air inlet pipeline is communicated to the air inlet.

[0016] As a preferred technical scheme of the utility model, the air inlet pipeline is further provided with a first valve, and the pipeline between the filtering mechanism and the mixer is further provided with the second valve.

[0017] Preferably, the air inlet pipeline is further communicated to the chimney through a pipeline.

[0018] Further preferably, the air guide fan is communicated to the RTO device.

[0019] The utility model discloses the beneficial effects are: the utility model discloses the collection equipment is added in the rear end design, carries out residual tail gas collection, and the unprocessed part of waste gas is collected through the collecting box (collection equipment), and the waste gas after collection is sent to the RTO furnace (RTO device) again and carries out high temperature oxidation, thereby improve the overall processing efficiency of system. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is the structural schematic diagram of the utility model;

[0021] In the drawing: 000, air inlet; 001, first valve; 002, second valve; 003, third valve; 004, filtering mechanism; 005, mixer; 006, air guide fan; 007, RTO device; 0071, first air duct; 0072, second air duct; 0073, air inlet switching valve; 0074, air outlet switching valve; 0075, heating part; 008, collecting device; 0081, collecting box switching valve; 0082, return air regulating valve; 009, chimney. DETAILED DESCRIPTION

[0022] The preferred embodiments of the utility model are described below in combination with the drawings, and it should be understood that the preferred embodiments described herein are only used to illustrate and explain the utility model, and are not used to limit the utility model.

[0023] Embodiments

[0024] As Figure 1 shown, the embodiment provides a high-efficiency electric RTO treatment system, which comprises a first valve 001, a second valve 002, a third valve 003, a mixer 005, an air drafter 006, an RTO device 007 and a collection device 008, wherein the RTO device 007 is provided with an air inlet switching valve 0073 and an air outlet switching valve 0074;

[0025] The collection device 008 is provided with a collection tank switching valve 0081, wherein the collection device 008 is further provided with an air outlet, the air outlet is communicated to the air drafter 006, the air drafter 006 is communicated to the RTO device 007. The air drafter 006 is communicated to the mixer 005, wherein the mixer 005 is communicated to the filtering mechanism 004 and an air inlet pipeline, and the air inlet pipeline is provided with an air inlet 000; the air drafter is the power of the system, and is mainly arranged at the inlet of the electric RTO furnace (may also be arranged at the end of the system), and is preferably arranged at the starting section in the embodiment; the mixer 005 is mainly used for uniformly mixing high-concentration waste gas and air, and avoids safety hazards caused by uneven mixing, and is arranged in front of the air drafter;

[0026] The air outlet of the collection device 008 is communicated to the air drafter 006 through an air pipe, wherein the air pipe is provided with a back air adjusting valve 0082. The collection device 008 is communicated to a chimney 009.

[0027] The RTO device 007 further comprises a heating part 0075, and a first air duct 0071 and a second air duct 0072 located at the side of the heating part 0075. In the embodiment, the RTO device 007 is preferably a skid-mounted electric RTO furnace, which is arranged behind the air drafter and in front of a residual tail gas collection tank, and the furnace body mainly comprises an air inlet and outlet switching valve, a furnace body, a heat preservation material, a heat accumulator and an electric heating element.

[0028] The air inlet pipeline is further provided with the first valve 001, which is an air inlet valve in the embodiment, and controls the air inlet; the pipeline between the filtering mechanism 004 and the mixer 005 is further provided with the second valve 002, which is a fresh air valve in the embodiment, and controls the filtering mechanism 004 (air filter). The air inlet pipeline is further communicated to the chimney 009 through a pipeline, and the pipeline is provided with the third valve 003, that is, a bypass valve.

[0029] Specifically, the residual tail gas collection box (i.e. collection device 008) is specially designed, and when the inlet and outlet gas switching valves (i.e. inlet switching valve 0073 and outlet switching valve 0074) on the furnace body (RTO device 007) are switched, the air ducts (first air duct 0071 and second air duct 0072) and the upper and lower heat storage layers in the heat storage layer (0075) collect untreated exhaust gas. Figure 1

[0030] Typically, for example, when the exhaust gas from the upper air duct (first air duct 0071) is switched to the lower air duct (second air duct 0072), the switching valves (i.e. inlet switching valve 0073 and outlet switching valve 0074) on the furnace body are switched, and at this time the switching valve (collection box switching valve 0081) on the residual tail gas collection (collection device 008) is also switched, and after a certain period of time, the residual tail gas collection box switching valve is switched to the normal working position, so that the untreated exhaust gas is collected in the collection box (collection device 008), and the exhaust outlet is provided below the collection box body, and is connected to the inlet of the induced draft fan through the air pipe, and the exhaust gas collected in the residual tail gas collection box is sucked into the RTO device 007 for high-temperature oxidation reaction by the negative pressure of the inlet of the induced draft fan, and the action is repeated, thereby improving the overall processing efficiency of the electric RTO furnace system, and the processing efficiency is greater than 99%, so that the electric RTO furnace system is applied to more industries with strict emission requirements.

[0031] The utility model discloses a collection device is added in the rear end, and residual tail gas is collected, and the untreated part exhaust gas is collected through the collection box (collection device 008), and the collected exhaust gas is sent to the RTO furnace (RTO device 007) again and is oxidized at high temperature, thereby improving the overall processing efficiency of the system.

[0032] The basic principle, main features and advantages of the utility model are shown and described above. Those skilled in the art should understand that the utility model is not limited by the above-mentioned embodiments, and various changes and improvements can be made without departing from the spirit and scope of the utility model, and these changes and improvements all fall within the scope of the utility model claimed. The scope of protection of the utility model is defined by the appended claims and their equivalents.​

Claims

1. A high efficiency electrical RTO treatment system characterized by, The system comprises a first valve (001), a second valve (002), a third valve (003), a mixer (005), an air induction fan (006), an RTO device (007) and a collection device (008), wherein, The RTO device (007) is provided with an air inlet switching valve (0073) and an air outlet switching valve (0074); The collection device (008) is provided with a collection tank switching valve (0081), wherein, The collection device (008) is further provided with an air outlet which is communicated with the air induction fan (006).

2. The high efficiency electrical RTO treatment system of claim 1, wherein, The air outlet of the collection device (008) is communicated with the air induction fan (006) through an air pipe, wherein, The air pipe is provided with an air return regulating valve (0082).

3. A high efficiency electrical RTO treatment system according to claim 2, wherein, The collection device (008) is communicated with a chimney (009).

4. The high efficiency electrical RTO treatment system of claim 3, wherein, The RTO device (007) further comprises a heating part (0075), and a first air duct (0071) and a second air duct (0072) located at the side of the heating part (0075).

5. The high efficiency electrical RTO treatment system of claim 4, wherein, The air induction fan (006) is communicated with the mixer (005), wherein, The mixer (005) is communicated with a filtering mechanism (004) and an air inlet pipeline which is provided with an air inlet (000).

6. A high efficiency electrical RTO treatment system according to claim 5, wherein, The air inlet pipeline is further provided with the first valve (001); the pipeline between the filtering mechanism (004) and the mixer (005) is further provided with the second valve (002).

7. The high efficiency electrical RTO treatment system of claim 5, wherein, The air inlet pipeline is further communicated with the chimney (009) through a pipeline.

8. The high efficiency electrical RTO treatment system of claim 1, wherein, The air induction fan (006) is communicated with the RTO device (007).

Images