An integrated device for treating organic waste gas

Abstract

The present invention relates to the field of waste gas treatment, and more specifically, to an integrated device for treating organic waste gas, comprising a pre-treatment filter, an RTO thermal storage combustion furnace body and an air volume control system for controlling the discharge amount of organic waste gas, and also comprising a pressure relief safety device arranged on the RTO thermal storage combustion furnace body; after the organic waste gas passes through the pre-treatment filter, it enters the RTO thermal storage combustion furnace body under the control of the air volume control system; a pressure difference transmitter for monitoring the pressure difference on both sides of the RTO thermal storage combustion furnace body is arranged on the RTO thermal storage combustion furnace body; the pressure difference transmitter is connected to the air volume control system, and in the integrated device for treating organic waste gas disclosed in the present invention, the pressure difference transmitter can compare the pressure difference between the air intake duct and the exhaust duct, thereby controlling the air supply volume of the air volume control system, achieving the purpose of energy saving and consumption reduction, and the pressure relief safety device explodes and releases pressure after reaching a set pressure value, which can prevent the RTO thermal storage combustion furnace body from being damaged due to excessive pressure during operation.

Description

Technical Field

[0001] The present invention relates to the field of waste gas treatment, and more specifically, to an integrated device for treating organic waste gas. Background Art

[0002] With the rapid development of my country's economy, the environmental problems it brings are becoming increasingly serious, especially in the VOCs control. Various regions and industries have frequently introduced new standards, continuously strengthened the engineering control of VOCs in various industries, and emission standards have become more and more stringent.

[0003] In many industrial enterprises, there are various characteristics of organic waste gas emissions, such as: large air volume and low concentration, small and medium air volume and high concentration, large concentration fluctuations, and many impurities. For small and medium air volume and high concentration organic waste gas emissions, most of the current treatment facilities have not made reasonable designs for the front-end collection systems, resulting in high-power operation of the fans during small air volume emissions, resulting in energy waste. In addition, at present, for the treatment of small and medium air volume organic waste gas, RTO thermal storage combustion is generally used for treatment. Its principle is to oxidize organic matter (VOCs) in organic waste gas at high temperature. It is transformed into corresponding carbon dioxide and water, thereby purifying organic waste gas and recovering the heat released when the waste gas is decomposed. However, the temperature inside the current RTO thermal storage combustion furnace is generally difficult to control. When the furnace temperature is too high, the furnace is prone to explosion. Therefore, some RTO thermal storage combustion furnaces are equipped with bursting discs. The setting of the bursting discs can ensure that the RTO thermal storage combustion furnace has the maximum safety factor in an emergency and prevent equipment damage. However, the structures of the bursting discs on the market are relatively simple and the functions are relatively single, which do not meet people's current needs.

[0004] Therefore, it is necessary to propose an integrated organic waste gas treatment device that solves the above problems. Summary of the invention

[0005] In order to overcome at least one defect (shortcoming) of the above-mentioned prior art, the present invention provides an integrated organic waste gas treatment device which can relieve the pressure in the RTO thermal storage combustion furnace and adjust the air volume.

[0006] In order to solve the above technical problems, the technical solution of the present invention is as follows: an integrated device for treating organic waste gas, comprising a pre-treatment filter, an RTO thermal storage combustion furnace body and an air volume control system for controlling the discharge amount of organic waste gas, and also comprising a pressure relief safety device arranged on the RTO thermal storage combustion furnace body;

[0007] After passing through the pre-treatment filter, the organic waste gas enters the RTO thermal storage combustion furnace under the control of the air volume control system;

[0008] The RTO regenerative combustion furnace body is provided with a pressure differential transmitter for monitoring the pressure difference on both sides of the RTO regenerative combustion furnace body;

[0009] The differential pressure transmitter is connected to the air volume control system, and the organic waste gas enters the RTO thermal storage combustion furnace body after preliminary filtration by the pre-treatment filter, wherein the differential pressure transmitter can compare the pressure difference between the intake duct and the exhaust duct, thereby controlling the air supply of the air volume control system, achieving the purpose of energy saving and consumption reduction. The pressure relief safety device arranged on the RTO thermal storage combustion furnace body blasts and releases pressure after reaching the set pressure value, thereby preventing the RTO thermal storage combustion furnace body from being damaged due to excessive pressure during operation. In addition, the pressure relief safety device can also promptly recover fragments that burst during pressure release to avoid personal injury.

[0010] Furthermore, the pressure relief safety device includes a bursting disc, a clamp, an adjustment baffle and a limit seat arranged on the RTO thermal storage combustion furnace body;

[0011] The limit seat is provided with a limit slot and an annular movable locking piece;

[0012] The bursting disc is clamped in the limit clamping slot by a clamp;

[0013] The clamp is provided with a positioning groove, and the annular movable locking piece is rotatably clamped on the positioning groove;

[0014] The adjustable baffle is arranged on the limit seat and abuts against the top of the bursting disc. The installation angle of the clamp can be fixed through the limit slot, and the annular movable locking piece can be rotated. The rotated annular movable locking piece is clamped on the positioning slot of the clamp to fix the clamp. When the pressure in the RTO heat storage combustion furnace body exceeds the set value, the bursting disc made of stainless steel material explodes and breaks. At this time, the adjustable baffle can prevent the explosion fragments from splashing and play a protective role.

[0015] Furthermore, the adjusting baffle includes a first adjusting arm, a second adjusting arm, a positioning seat, a positioning bolt and a baffle;

[0016] The limit seat is provided with a positioning hole;

[0017] Both ends of the first adjustment arm and the second adjustment arm are connected to the positioning seat respectively;

[0018] The positioning seat is fixed on the positioning hole by means of positioning bolts;

[0019] The blocking net is arranged between the first adjusting arm and the second adjusting arm. By fixing the four corners of the blocking net on the first adjusting arm and the second adjusting arm respectively, the blocking net can be fixed to avoid displacement of the blocking net, which is simple and practical.

[0020] Furthermore, a rotating shaft is provided on the positioning base, and the first adjusting arm and the second adjusting arm are respectively hinged on the rotating shaft of the positioning base. By hingedly connecting the first adjusting arm and the second adjusting arm to the positioning base, when the adjustment baffle is disassembled, the positioning base can be rotated and stacked, which is convenient for installation and transportation.

[0021] Furthermore, the pre-treatment filter is an activated carbon filter or a molecular sieve filter. The organic waste gas can be filtered by passing through the activated carbon filter or the molecular sieve filter. Among them, the activated carbon filter has an adsorption effect on most substances and can adsorb most particulate matter, while the molecular sieve filter can filter designated particulate matter by controlling the pore size. After filtration, it is only necessary to pass warm air into the activated carbon filter or the molecular sieve filter to re-desorb and output the organic matter (VOCs), thereby increasing the VOCs concentration in the gas by dozens of times, making it convenient for centralized treatment of VOCs.

[0022] Furthermore, the RTO regenerative combustion furnace body includes a burner, a combustion chamber, a chimney, a first regenerative chamber, a second regenerative chamber, a third regenerative chamber, a back-blowing pipe, a back-blowing blower arranged on the back-blowing pipe, an exhaust pipe connected to the back-blowing pipe, and an air intake pipe connected to an air volume control system;

[0023] The burner is arranged at the top of the combustion chamber, and the first heat storage chamber, the second heat storage chamber and the third heat storage chamber are arranged in sequence at the bottom of the combustion chamber;

[0024] The first heat storage chamber, the second heat storage chamber and the third heat storage chamber are respectively provided with ceramic heat storage bodies;

[0025] The bottoms of the first heat storage chamber, the second heat storage chamber and the third heat storage chamber are respectively provided with corresponding pneumatic three-way valves, and the first heat storage chamber, the second heat storage chamber and the third heat storage chamber are respectively connected to the intake pipe and the exhaust pipe through the corresponding pneumatic three-way valves;

[0026] The chimney is connected with the exhaust pipe, and the organic waste gas passes through the first heat storage chamber, the second heat storage chamber and the third heat storage chamber in sequence, so that the three heat storage chambers are respectively in the organic waste gas preheating stage, the combustion heat release stage and the purge and flushing stage. Since the three-bed RTO heat storage combustion furnace body has an additional purge and flushing process compared to the two-bed RTO heat storage combustion furnace body, it effectively avoids the instantaneous unqualified phenomenon caused by the waste gas directly short-circuiting and being discharged into the environment together with the purified gas during the valve switching process of the two-bed RTO, thereby improving the treatment effect of the organic waste gas.

[0027] Furthermore, the ceramic thermal storage body is made of dense cordierite material. In practical applications, the ceramic thermal storage body can also be made of other materials, which are all within the protection scope of the present invention.

[0028] Furthermore, a flame arrester is provided on the air intake duct. Through the setting of the flame arrester, sparks generated by the RTO heat storage combustion furnace can be blocked, which can effectively prevent the risk of fire in the equipment.

[0029] Further, the differential pressure transmitter includes a first differential pressure detection end, a second differential pressure detection end and a differential pressure comparison chip;

[0030] The first pressure difference detection end is arranged on the air intake pipe, and the second pressure difference detection end is arranged on the exhaust pipe;

[0031] One end of the pressure difference comparison chip is respectively connected to the first pressure difference detection end and the second pressure difference detection end, and the other end is connected to the air volume control system. The pressure difference transmitter detects the pressure difference between the intake duct and the exhaust duct through the first pressure difference detection end and the second pressure difference detection end respectively. The detection result is compared by the pressure difference comparison chip to control the air volume control system to adjust the air volume.

[0032] Furthermore, the air volume control system includes a main control fan connected to the air intake duct and an air volume regulating valve arranged on the main control fan;

[0033] A copper sheet for preventing sparks is provided inside the air outlet of the main control fan;

[0034] The air volume regulating valve is connected to the pressure difference comparison chip. By setting a copper sheet on the inner side of the air outlet of the main control fan, it can play a role in preventing sparks and enhance the safety performance of the system in flammable and explosive environments. The pressure difference comparison chip compares the pressure difference between the intake duct and the exhaust duct, and feeds the result back to the air volume regulating valve, which is convenient for controlling the wind force of the main control fan and avoiding energy waste.

[0035] Compared with the prior art, the technical solution of the present invention has the following beneficial effects:

[0036] (1) In the integrated organic waste gas treatment equipment disclosed in the present invention, the organic waste gas enters the RTO thermal storage combustion furnace body after preliminary filtration by the pre-treatment filter, wherein the differential pressure transmitter can compare the differential pressure between the air intake duct and the exhaust duct, thereby controlling the air supply of the air volume control system, thereby achieving the purpose of energy saving and consumption reduction. The pressure relief safety device arranged on the RTO thermal storage combustion furnace body can blast and release the pressure after reaching the set pressure value, thereby preventing the RTO thermal storage combustion furnace body from being damaged due to excessive pressure during operation. In addition, the pressure relief safety device can also promptly recover the fragments that burst during pressure relief to avoid personal injury.

[0037] (2) The integrated organic waste gas treatment equipment disclosed in the present invention can fix the installation angle of the clamp through the limit slot, and the annular movable locking plate can be rotated. After rotation, the annular movable locking plate is clamped on the positioning slot of the clamp to fix the clamp. When the pressure in the RTO heat storage combustion furnace body exceeds the set value, the blasting disc made of stainless steel material explodes and breaks open. At this time, adjusting the baffle can prevent the explosion fragments from splashing, thereby playing a protective role.

[0038] (3) The integrated organic waste gas treatment equipment disclosed in the present invention can prevent sparks by setting a copper sheet on the inner side of the air outlet of the main control fan, thereby enhancing the safety performance of the system in flammable and explosive environments. The pressure difference comparison chip compares the pressure difference between the air intake duct and the exhaust duct, and feeds the result back to the air volume regulating valve, which is convenient for controlling the wind force of the main control fan and avoiding energy waste. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] Figure 1 It is a structural schematic diagram of the integrated equipment for treating organic waste gas in the present invention.

[0040] Figure 2 It is a structural schematic diagram of the RTO heat storage combustion furnace body in the present invention.

[0041] Figure 3 It is an exploded diagram of the pressure relief safety device in the present invention.

[0042] Figure 4 It is a schematic structural diagram of the pressure relief safety device in the present invention after being assembled but without the retaining net installed.

[0043] Figure 5 It is a schematic diagram of the structure of the first heat storage chamber during air intake in the present invention.

[0044] Figure 6 It is a schematic diagram of the structure of the second heat storage chamber during air intake in the present invention.

[0045] Figure 7 It is a schematic diagram of the structure of the third heat storage chamber during air intake in the present invention.

[0046] Figure 8 It is a structural schematic diagram of the differential pressure transmitter in the present invention.

[0047] In the figure, 1 is a pre-treatment filter, 2 is an RTO heat storage combustion furnace body, 3 is an air volume control system, 4 is a pressure relief safety device, 5 is a differential pressure transmitter, 6 is a bursting disc, 7 is a clamp, 8 is an adjustment baffle, 9 is a limit seat, 10 is a limit card slot, 11 is an annular movable locking piece, 12 is a positioning slot, 13 is a first adjustment arm, 14 is a second adjustment arm, 15 is a positioning card seat, 16 is a positioning bolt, 17 is a baffle, 18 is a positioning hole, 19 is a rotating shaft, and 20 is a hollow sleeve , 21 is an adjusting connecting arm, 22 is a burner, 23 is a combustion chamber, 24 is a chimney, 25 is a first heat storage chamber, 26 is a second heat storage chamber, 27 is a third heat storage chamber, 28 is a back-blowing pipe, 29 is a back-blowing blower, 30 is an exhaust pipe, 31 is an air intake pipe, 32 is a ceramic heat storage body, 33 is a pneumatic three-way valve, 34 is a flame arrester, 35 is a first pressure difference detection end, 36 is a second pressure difference detection end, 37 is a pressure difference comparison chip, 38 is a main control fan, and 39 is an air volume regulating valve. DETAILED DESCRIPTION

[0048] The drawings are only used for illustrative purposes and should not be construed as limitations on this patent. In order to better illustrate this embodiment, some parts of the drawings may be omitted, enlarged, or reduced, and do not represent the size of the actual product. For those skilled in the art, it is understandable that some well-known structures and their descriptions in the drawings may be omitted.

[0049] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation" and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. It can be said that the internal connection of two components is connected. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. The technical solution of the present invention is further explained below in conjunction with the accompanying drawings and embodiments.

[0050] like Figure 1-2As shown, an integrated device for treating organic waste gas comprises a pre-treatment filter 1, an RTO thermal storage combustion furnace body 2 and an air volume control system 3 for controlling the discharge amount of organic waste gas, and also comprises a pressure relief safety device 4 arranged on the RTO thermal storage combustion furnace body 2; after the organic waste gas passes through the pre-treatment filter 1, it enters the RTO thermal storage combustion furnace body 2 under the control of the air volume control system 3; a pressure differential transmitter 5 for monitoring the pressure difference on both sides of the RTO thermal storage combustion furnace body 2 is arranged on the RTO thermal storage combustion furnace body 2; the pressure differential transmitter 5 is connected to the air volume control system 3, and the organic waste gas passes through the pre-treatment filter 1 After preliminary filtration, it enters the RTO thermal storage combustion furnace body 2, where the differential pressure transmitter 5 can compare the pressure difference between the intake duct and the exhaust duct, thereby controlling the air supply of the air volume control system 3, which can achieve the purpose of energy saving and consumption reduction. The pressure relief safety device 4 arranged on the RTO thermal storage combustion furnace body 2 can prevent the RTO thermal storage combustion furnace body 2 from being damaged due to excessive pressure during operation. In addition, the pressure relief safety device 4 can also promptly recover the fragments that burst during pressure relief to avoid personal injury.

[0051] like Figure 3-4 As shown, the pressure relief safety device 4 includes a bursting disc 6, a clamp 7, an adjusting baffle 8 and a limit seat 9 arranged on the RTO thermal storage combustion furnace body 2; the limit seat 9 is provided with a limit slot 10 and an annular movable locking piece 11; the bursting disc 6 is clamped in the limit slot 10 through the clamp 7; the clamp 7 is provided with a positioning slot 12, and the annular movable locking piece 1 can be rotatably clamped on the positioning slot 12; the adjusting baffle 8 is arranged on the limit seat 9 and abuts against the top of the bursting disc 6, and the installation angle of the clamp 7 can be fixed through the limit slot 10, and the annular movable locking piece 11 can be rotatable, and the rotated annular movable locking piece 11 is clamped on the positioning slot 12 of the clamp 7, so that the clamp 7 can be fixed. When the pressure in the RTO thermal storage combustion furnace body 2 exceeds the set value, the bursting disc 6 made of stainless steel material explodes and breaks. At this time, the adjusting baffle 8 can avoid the splashing of the bursting fragments and play a protective role.

[0052] In the present invention, the adjustment screen 8 includes a first adjustment arm 13, a second adjustment arm 14, a positioning seat 15, a positioning bolt 16 and a screen 17; a positioning hole 18 is provided on the limit seat 9; the first adjustment arm 13 and the second adjustment arm 14 are respectively connected to the positioning seat 15 at both ends; the positioning seat 15 is fixed to the positioning hole 18 by the positioning bolt 16; the screen 17 is arranged between the first adjustment arm 13 and the second adjustment arm 14, and the screen 17 can be fixed by fixing the four corners of the screen 17 to the first adjustment arm 13 and the second adjustment arm 14 respectively. , to avoid the displacement of the blocking net 17, simple and practical. In actual application, the blocking net 17 is an elastic blocking net, which is convenient for folding or retracting. In addition, a rotating shaft 19 is provided on the positioning card seat 15, and the first adjusting arm 13 and the second adjusting arm 14 are respectively hinged on the rotating shaft 19 of the positioning card seat 15. By hingedly connecting the first adjusting arm 13 and the second adjusting arm 14 to the positioning card seat 15, when the adjustment blocking net 8 is disassembled, the positioning card seat 15 can be rotated and stacked, which is convenient for installation and transportation. Among them, the structures of the first adjusting arm 13 and the second adjusting arm 14 are the same, and the first adjusting arm 13 and the second adjusting arm 14 are respectively hinged on the rotating shaft 19 of the positioning card seat 15. The invention specifically comprises a hollow sleeve 20 and an adjusting connecting arm 21, wherein a strong spring is arranged in the hollow sleeve 20, and the adjusting connecting arm 21 can fine-tune a certain length in the hollow sleeve 20 through the strong spring, so as to cover bursting discs 6 of different sizes. In addition, it can also be installed and fixed at the positions of different positioning holes. In this way, the adjusting baffle 8 can be suitable for bursting discs 6 of more specifications, and the problem of the adjusting baffle 8 not being installed due to the design error of the positioning hole 18 can be avoided. The invention is simple and practical. The pre-treatment filter 1 is an activated carbon filter or a molecular sieve filter. The organic waste gas can be filtered by passing through the activated carbon filter or the molecular sieve filter. The activated carbon filter has an adsorption effect on most substances and can adsorb most of the particulate matter, while the molecular sieve filter can filter the specified particulate matter by controlling the aperture. After filtering, it is only necessary to pass heating air into the activated carbon filter or the molecular sieve filter to make the organic matter (VOCs) desorbed and output again, so that the concentration of VOCs in the gas is increased by dozens of times, which is convenient for centralized treatment of VOCs.

[0053] like Figure 5-7As shown, the RTO regenerative combustion furnace body 2 includes a burner 22, a combustion chamber 23, a chimney 24, a first regenerative chamber 25, a second regenerative chamber 26, a third regenerative chamber 27, a back-blowing pipe 28, a back-blowing blower 29 arranged on the back-blowing pipe 28, an exhaust pipe 30 connected to the back-blowing pipe 28, and an air intake pipe 31 connected to the air volume control system 3; the burner 22 is arranged at the top of the combustion chamber 23, and the first regenerative chamber 25, the second regenerative chamber 26 and the third regenerative chamber 27 are arranged in sequence at the bottom of the combustion chamber 23; ceramic regenerative bodies 32 are respectively arranged in the first regenerative chamber 25, the second regenerative chamber 26 and the third regenerative chamber 27; corresponding pneumatic three-way valves 33 are respectively arranged at the bottom of the first regenerative chamber 25, the second regenerative chamber 26 and the third regenerative chamber 27, and the first regenerative chamber 25, the second regenerative chamber 26 and the third regenerative chamber 27 are connected through corresponding pneumatic three-way valves. The through valve 33 is respectively connected to the air intake pipe 31 and the exhaust pipe 30; the chimney 24 is connected to the exhaust pipe 30, and the organic waste gas passes through the first heat storage chamber 25, the second heat storage chamber 26 and the third heat storage chamber 27 in sequence, so that the three heat storage chambers are respectively in the waste gas preheating stage, the flue gas heat release stage and the purge and flushing stage. Since the three-bed RTO heat storage combustion furnace body 2 adds a purge and flushing process compared to the two-bed RTO heat storage combustion furnace body 2, it effectively avoids the instantaneous unqualified phenomenon caused by the organic waste gas directly short-circuiting and being discharged into the environment together with the purified gas during the valve switching process of the two-bed RTO, so that the treatment effect of the organic waste gas is better. In the present invention, the ceramic heat storage body 32 is made of dense cordierite material. In practical applications, the ceramic heat storage body 32 can also be made of other materials, which are all within the protection scope of the present invention.

[0054] like Figure 8As shown, a flame arrester 34 is provided on the air intake duct 31. Through the setting of the flame arrester 34, the sparks generated by the RTO heat storage combustion furnace body 2 can be blocked, which can effectively prevent the risk of fire in the equipment. The differential pressure transmitter 5 includes a first differential pressure detection end 35, a second differential pressure detection end 36 and a differential pressure comparison chip 37; the first differential pressure detection end 35 is arranged on the air intake duct 31, and the second differential pressure detection end 36 is arranged on the exhaust duct 30; one end of the differential pressure comparison chip 37 is connected to the first differential pressure detection end 35 and the second differential pressure detection end 36, respectively, and the other end is connected to the air volume control system 3. The differential pressure transmitter 5 detects the pressure difference between the air intake duct 31 and the exhaust duct 30 through the first differential pressure detection end 35 and the second differential pressure detection end 36. The detection is carried out, and the detection result is compared by the pressure difference comparison chip 37 to control the air volume control system 3 to adjust the air volume, wherein the air volume control system 3 includes a main control fan 38 connected with the air intake duct 31 and an air volume regulating valve 39 arranged on the main control fan 38; a copper sheet for preventing sparks is provided on the inner side of the air outlet of the main control fan 38; the air volume regulating valve 39 is connected to the pressure difference comparison chip 37, and by arranging the copper sheet on the inner side of the air outlet of the main control fan 38, it can play a role in preventing sparks and enhance the safety performance of the system in flammable and explosive environments. The pressure difference comparison chip 37 compares the pressure difference between the air intake duct 31 and the exhaust duct 30, and feeds back the result to the air volume regulating valve 39, so as to control the wind force of the main control fan 38 and avoid energy waste.

[0055] Example

[0056] In this embodiment, when treating organic waste gas with small and medium air volumes, the organic waste gas is first filtered through a pretreatment filter, wherein the pretreatment filter can be an activated carbon filter or a molecular sieve filter. When an activated carbon filter is used as a pretreatment filter, the activated carbon filter can adsorb most particulate matter and organic substances (VOCs), but the directionality is not strong. When a molecular sieve filter is used, particulate matter and organic substances (VOCs) of a specified diameter can be adsorbed, and the directionality is strong.

[0057] When the organic waste gas is filtered by the pre-treatment filter, particulate matter and organic substances (VOCs) are adsorbed on the pre-treatment filter. At this time, it is only necessary to pass warm air into the pre-treatment filter to desorb the particulate matter and organic substances (VOCs) in the pre-treatment filter. The desorbed gas is transmitted to the RTO heat storage combustion furnace under the control of the main control fan.

[0058] Stage 1: The desorbed organic waste gas passes through the first heat storage chamber and is preheated by the ceramic heat storage body in the first heat storage chamber. The preheated organic waste gas enters the combustion chamber. At this time, the remaining untreated waste gas in the third heat storage chamber is blown back to the combustion chamber by the purified gas for incineration. The organic waste gas and the gas blown back to the combustion chamber are ignited by the burner in the combustion chamber and burned, and decomposed into carbon dioxide and water vapor. The decomposed gas is discharged through the second heat storage chamber, and the ceramic heat storage body in the second heat storage chamber is heated at the same time.

[0059] Stage 2: The organic waste gas passes through the second regenerator and is preheated by the ceramic regenerator in the second regenerator. The preheated organic waste gas enters the combustion chamber for combustion. At this time, the untreated organic waste gas remaining in the first regenerator is blown back to the combustion chamber by the purified gas and incinerated with the organic waste gas introduced into the second regenerator. The decomposed carbon dioxide and water vapor are discharged through the third regenerator, and the ceramic regenerator in the third regenerator is heated at the same time.

[0060] Stage three: The organic waste gas passes through the third regenerator, is preheated by the ceramic regenerator in the third regenerator, and then enters the combustion chamber for combustion. The remaining untreated organic waste gas in the second regenerator is blown back into the combustion chamber by the purified gas, and is incinerated together with the organic waste gas introduced into the third regenerator. The carbon dioxide and water vapor after combustion and decomposition are discharged through the first regenerator. At the same time, the ceramic regenerator in the first regenerator is heated. In this periodic operation, the organic waste gas is oxidized and decomposed in the combustion chamber, and the temperature in the combustion chamber is maintained at the set temperature (generally 800-850 degrees Celsius). When the exhaust gas concentration at the RTO inlet reaches a certain value, the heat released by the oxidation of VOCs can maintain the energy reserve of RTO heat storage and heat release. At this time, RTO can maintain the temperature in the combustion chamber without using fuel.

[0061] A large number of engineering applications have shown that the maximum decomposition efficiency of VOCs of the three-bed RTO can reach 99%, the maximum comprehensive thermal efficiency can reach 95%, the inlet and outlet temperature difference is about 40 degrees Celsius, and when the valve is switched, the pressure fluctuation in the exhaust gas pipe is ±250pa. The VOCs treatment concentration of the three-bed RTO cannot exceed 5g / m3, otherwise it will exceed the local emission standards of Beijing and Shanghai. In addition, due to its large specific surface area, its own operating heat dissipation is large, which reduces the waste heat available for recycling.

[0062] In the present invention, a pressure differential transmitter can be arranged on the air intake duct and the exhaust duct. The pressure differential transmitter can detect the pressure difference between the air intake duct and the exhaust duct, and adjust the air supply volume of the air volume control system according to the pressure difference, so as to achieve the purpose of accurately controlling the air volume and avoid waste of resources. In addition, in the present invention, a pressure relief safety device is arranged on the RTO thermal storage combustion furnace body. When the pressure relief safety device explodes and releases pressure after reaching the set pressure value, the RTO thermal storage combustion furnace body can be prevented from being damaged due to excessive pressure during operation. In addition, the pressure relief safety device can also promptly recover the fragments that explode during pressure relief to avoid personal injury.

[0063] In the figure, the description of the positional relationship is only for illustrative purposes and should not be understood as a limitation on this patent; obviously, the above embodiments of the present invention are only examples for clearly illustrating the present invention, and are not limitations on the implementation methods of the present invention. For ordinary technicians in the relevant field, other different forms of changes or modifications can be made on the basis of the above description. It is not necessary and impossible to list all the implementation methods here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the claims of the present invention.

Claims

1. An integrated device for treating organic waste gas, comprising a pre-treatment filter, an RTO thermal storage combustion furnace body and an air volume control system for controlling the discharge amount of organic waste gas, characterized in that: It also includes a pressure relief safety device arranged on the RTO thermal storage combustion furnace body; after the organic waste gas passes through the pre-treatment filter, it enters the RTO thermal storage combustion furnace body under the control of the air volume control system; the RTO thermal storage combustion furnace body is provided with a pressure differential transmitter for monitoring the pressure difference on both sides of the RTO thermal storage combustion furnace body; the pressure differential transmitter is connected to the air volume control system; the pressure relief safety device includes a bursting disc, a clamp, an adjustment baffle and a limit seat arranged on the RTO thermal storage combustion furnace body; the limit seat is provided with a limit card slot and an annular movable locking piece; the bursting disc is clamped in the limit card slot by the clamp; the clamp is provided with a positioning slot, and the annular movable locking piece can be rotatably clamped on the positioning slot; the adjustment baffle is arranged on the limit seat and abuts against the top of the bursting disc; the adjustment baffle The net includes a first adjusting arm, a second adjusting arm, a positioning seat, a positioning bolt and a retaining net; a positioning hole is provided on the limit seat; two ends of the first adjusting arm and the second adjusting arm are respectively connected to the positioning seat; the positioning seat is fixed to the positioning hole by a positioning bolt; the retaining net is arranged between the first adjusting arm and the second adjusting arm; a rotating shaft is provided on the positioning seat, and the first adjusting arm and the second adjusting arm are respectively hinged on the rotating shaft of the positioning seat; wherein the structures of the first adjusting arm and the second adjusting arm are the same, and they respectively include a hollow sleeve and an adjusting connecting arm, a strong spring is arranged in the hollow sleeve, and the adjusting connecting arm can fine-tune a certain length in the hollow sleeve through the strong spring, so as to cover bursting pieces of different sizes, and in addition, it can also be installed and fixed at the positions of different positioning holes.

2. The integrated equipment for treating organic waste gas according to claim 1, characterized in that: The pre-treatment filter is an activated carbon filter or a molecular sieve filter.

3. The integrated equipment for treating organic waste gas according to claim 1, characterized in that: The RTO regenerative combustion furnace body comprises a burner, a combustion chamber, a chimney, a first regenerative chamber, a second regenerative chamber, a third regenerative chamber, a back-blowing pipe, a back-blowing blower arranged on the back-blowing pipe, an exhaust pipe connected to the back-blowing pipe, and an air intake pipe connected to an air volume control system; the burner is arranged on the top of the combustion chamber, and the first regenerative chamber, the second regenerative chamber and the third regenerative chamber are arranged in sequence at the bottom of the combustion chamber; the first regenerative chamber, the second regenerative chamber and the third regenerative chamber are respectively provided with ceramic regenerative bodies; Corresponding pneumatic three-way valves are respectively provided at the bottom of the first heat storage chamber, the second heat storage chamber and the third heat storage chamber, and the first heat storage chamber, the second heat storage chamber and the third heat storage chamber are respectively connected with the air intake pipe and the exhaust pipe through the corresponding pneumatic three-way valves; the chimney is connected with the exhaust pipe.

4. The integrated equipment for treating organic waste gas according to claim 3 is characterized in that: The ceramic heat storage body is made of dense cordierite material.

5. The integrated equipment for treating organic waste gas according to claim 3 is characterized in that: A flame arrester is arranged on the air intake pipeline.

6. The integrated equipment for treating organic waste gas according to claim 3 is characterized in that: The differential pressure transmitter includes a first differential pressure detection end, a second differential pressure detection end and a differential pressure comparison chip; the first differential pressure detection end is arranged on the air intake duct, and the second differential pressure detection end is arranged on the exhaust duct; one end of the differential pressure comparison chip is respectively connected to the first differential pressure detection end and the second differential pressure detection end, and the other end is connected to the air volume control system.

7. The integrated equipment for treating organic waste gas according to claim 6, characterized in that: The air volume control system includes a main control fan connected to the air intake duct and an air volume regulating valve arranged on the main control fan; a copper sheet for preventing sparks is arranged on the inner side of the air outlet of the main control fan; and the air volume regulating valve is connected to a pressure difference comparison chip.

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