Two-stage rotating wheel and RTO waste gas treatment system

Abstract

The utility model relates to a two-stage rotating wheel and RTO waste gas treatment system. The two-stage rotating wheel and RTO waste gas treatment system comprises a powder spraying and oil removing filter, an efficient filter box, a first-stage zeolite rotating wheel, a second-stage zeolite rotating wheel, a heat accumulating type incinerator, an adsorption pipeline, a desorption pipeline, a plate heat exchanger, an adsorption fan and a desorption fan, according to the two-stage runner and RTO waste gas treatment system disclosed by the utility model, the secondary zeolite runner enters the front section of the high-efficiency filter box for secondary adsorption after desorption, the concentration of the secondary zeolite runner after concentration is relatively low, the secondary adsorption does not influence up-to-standard emission, the desorption air quantity is converged into the front section by the secondary zeolite runner, the air quantity entering a heat accumulating type incinerator is reduced, and the energy consumption is reduced. And the system operation cost is reduced, the waste gas with complex components and high concentration stably reaches the standard, and the operation cost is saved.

Description

Technical Field

[0001] The utility model relates to the field of waste gas treatment systems, in particular to a two-stage rotor and RTO waste gas treatment system. Background Art

[0002] In the waste gas treatment system, since gaseous pollutants exist in gaseous form. When the gas flows through the equipment, a certain pressure difference will be generated due to the disturbance of the airflow, causing the pollutants to be converted from gaseous to solid (i.e. adsorption) or liquid (i.e. desorption). The purification equipment uses toxic and harmful substances in the waste gas to decompose toxic gases into harmless third gases such as O2, H2O, SO2, etc. through spraying, combustion, etc. The equipment is divided into two processes: adsorption and desorption. The pollutants are separated from the waste gas through chemical reactions or filtration. The high-temperature waste gas generated during the purification process can also be used in the heating and air-conditioning industries, etc., and is also very useful in the field of environmental protection; while RTO is a heat storage thermal incinerator. If the organic matter contains other elements such as halogens, the oxidation products also include hydrogen halides, etc. The waste gas is first heated to a temperature close to the thermal oxidation temperature by the heat storage body, and then enters the combustion chamber for thermal oxidation. The temperature of the oxidized gas increases, and the organic matter is basically converted into carbon dioxide and water. The purified gas passes through another heat storage body, the temperature drops, and it can be discharged after meeting the emission standards. Different heat storage bodies are converted over time through switching valves or rotating devices to absorb and release heat respectively; the principle of the heat storage thermal incinerator is to heat the organic waste gas to above 760 degrees Celsius, so that the vanadium monoxide in the waste gas is decomposed into carbon dioxide and water by the third oxidation. The high-temperature gas produced by oxidation flows through a special ceramic heat storage body, which heats up the ceramic body and "storages heat". This "heat storage" is used to preheat the organic waste gas that enters later. Thereby saving fuel consumption for heating the waste gas. The ceramic heat storage body should be divided into two (including two) or more areas or chambers, and each heat storage chamber undergoes the procedures of heat storage-heat release-cleaning in turn, over and over again, and works continuously. After the heat storage chamber "releases heat", part of the clean exhaust gas that has been treated and qualified should be immediately introduced to clean the heat storage chamber (to ensure that the third removal rate of vanadium monoxide VO is above 95%). Only after the cleaning is completed can the "heat storage" procedure be entered.

[0003] Zeolite wheel adsorption is selective adsorption. For waste gas with complex components and high concentration, single-stage zeolite wheel adsorption cannot stably meet the standards. Enterprises that do not meet the emission standards cannot produce normally. For tire and rubber production enterprises, the waste gas contains oil. The existing treatment processes on the market easily cause zeolite wheel blockage, and the zeolite wheel needs to be replaced frequently, which increases the operating cost. In summary, there is an urgent need for a two-stage wheel and RTO waste gas treatment system to solve the above problems. Summary of the invention

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a two-stage rotor and RTO waste gas treatment system, the two-stage rotor and RTO waste gas treatment system includes a powder spray oil removal filter, a high-efficiency filter box, a first-stage zeolite rotor, a second-stage zeolite rotor, a regenerative incinerator, an adsorption pipeline, a desorption pipeline, a plate heat exchanger, an adsorption fan, and a desorption fan;

[0005] The powder spray de-oiling filter is composed of a powder recovery system, a powder conveying system, and a material bag, and the powder spray de-oiling filter is connected to several groups of branch manual valves, branch solenoid valves and branch exhaust gas access valves, and the several groups of branch manual valves, branch solenoid valves and branch exhaust gas access valves are respectively connected to the solenoid valve main valve and the manual valve main valve; the solenoid valve main valve and the manual valve main valve are connected to 0.3-0.5MPA fire-fighting water; the right end of one of the branch manual valves and the branch solenoid valve is connected to a fan, and a dry filter is connected to the right side of the fan, and a drain valve is arranged on one side of the dry filter, a desorption fan is connected to the right side of the dry filter, and the desorption fan is connected to the first-level zeolite rotor, and a second-level zeolite rotor is arranged on the upper right side of the first-level zeolite rotor; an emergency system switching valve is installed at the lower end of the second-level zeolite rotor; two heat exchangers are installed on the right side of the emergency system switching valve, and the heat exchangers are the first heat exchanger and the second heat exchanger respectively.

[0006] Preferably, a chimney is installed on the right side of the secondary zeolite wheel.

[0007] Preferably, a regenerative heat oxidation furnace is installed at the lower right position of the desorption fan, and a combustion-supporting fan is connected to the regenerative heat oxidation furnace, and a main valve of a combustion valve group is arranged at the upper left of the combustion-supporting fan.

[0008] Preferably, the thermal storage oxidation furnace is respectively equipped with a first outlet valve, a second outlet valve, a third outlet valve, a first inlet valve, a second inlet valve, a third inlet valve, a first back-intake valve, a second back-intake valve, and a third back-intake valve, and a fan is provided at the left bottom of the thermal storage oxidation furnace.

[0009] Preferably, a temperature relief valve is also provided on one side of the thermal storage oxidation furnace.

[0010] Compared with the prior art, the utility model has the following beneficial effects:

[0011] The double-stage rotor and RTO waste gas treatment system newly described in the utility model, after desorption, the secondary zeolite rotor enters the front section of the high-efficiency filter box for secondary adsorption. The concentration after concentration by the secondary rotor is low, and the secondary adsorption will not affect the compliance with the emission standards. The secondary zeolite rotor will merge the desorption air volume into the front section, reducing the air volume entering the heat storage incinerator, reducing the system operation cost, achieving stable compliance with the standards for waste gas with complex components and high concentration, and saving operation cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a schematic diagram of the overall structure of the new two-stage runner and RTO waste gas treatment system of the utility model;

[0013] Figure 2 It is a structural diagram of the solenoid valve, manual valve and dry filter of Part A of the new two-stage runner and RTO exhaust gas treatment system of the utility model;

[0014] Figure 3 It is a schematic diagram of the connection between the zeolite rotor and the heat exchanger of the second part of the new two-stage rotor and RTO exhaust gas treatment system of the utility model;

[0015] Figure 4 It is a schematic diagram of the structure of the powder de-oiling filter of the third part of the new two-stage runner and RTO exhaust gas treatment system of the utility model;

[0016] Figure 5 This is a schematic diagram of the structure of the thermal storage oxidation furnace of the D part of the new two-stage impeller and RTO waste gas treatment system of the utility model.

[0017] Description of the drawings: 1. Powder spray oil removal filter; 2. Primary zeolite wheel; 3. Secondary zeolite wheel. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of them. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0019] See also Figure 1-5 The utility model provides a new technical solution: a two-stage rotor and RTO waste gas treatment system, which includes a powder spray oil removal filter 1, a high-efficiency filter box, a first-stage zeolite rotor 2, a second-stage zeolite rotor 3, a regenerative incinerator RTO, an adsorption pipeline, a desorption pipeline, a plate heat exchanger, an adsorption fan, and a desorption fan.

[0020] Among them, the powder spray deoiling filter 1 is composed of a powder recovery system, a powder conveying system, and a material bag, and the powder spray deoiling filter 1 is connected to several groups of branch manual valves, branch solenoid valves and branch exhaust gas access valves, and the several groups of branch manual valves, branch solenoid valves and branch exhaust gas access valves are respectively connected to the solenoid valve main valve and the manual valve main valve.

[0021] Among them, the solenoid valve main valve and the manual valve main valve are connected to 0.3-0.5MPA fire water.

[0022] Among them, the right end of one of the branch manual valves and the branch solenoid valve is connected to a fan, and a dry filter is connected to the right side of the fan, and a drain valve is arranged on one side of the dry filter. A desorption fan is connected to the right side of the dry filter, and the desorption fan is connected to a primary zeolite rotor 2, and a secondary zeolite rotor 3 is arranged on the upper right side of the primary zeolite rotor 2.

[0023] Among them, an emergency system switching valve is installed at the lower end of the secondary zeolite wheel 3.

[0024] Among them, two heat exchangers are installed on the right side of the emergency system switching valve, and the heat exchangers are the first heat exchanger and the second heat exchanger respectively.

[0025] Wherein, a chimney is installed on the right side of the secondary zeolite wheel 3 .

[0026] Among them, a heat storage oxidation furnace is installed at the lower right position of the desorption fan, and a combustion-supporting fan is connected to the heat storage oxidation furnace, and a main valve of the combustion valve group is arranged at the upper left of the combustion-supporting fan.

[0027] Among them, the thermal storage oxidation furnace is respectively equipped with a first outlet valve, a second outlet valve, a third outlet valve, a first inlet valve, a second inlet valve, a third inlet valve, a first back-intake valve, a second back-intake valve, and a third back-intake valve, and a fan is provided at the left bottom of the thermal storage oxidation furnace.

[0028] Among them, a temperature relief valve is also arranged on one side of the thermal storage oxidation furnace.

[0029] It should be noted that it includes a powder spray oil removal dust collector, a high-efficiency filter box, a first-stage zeolite wheel 2, a second-stage zeolite wheel 3, a regenerative thermal incinerator RTO, an adsorption pipeline and a desorption pipeline, a plate heat exchanger, an adsorption fan and a desorption fan; the two-stage wheel and RTO exhaust gas treatment system includes a powder spray oil removal filter 1, a high-efficiency filter box, a first-stage zeolite wheel 2, a second-stage zeolite wheel 3, a regenerative thermal incinerator RTO, an adsorption pipeline, a desorption pipeline, a plate heat exchanger, an adsorption fan, and a desorption fan; The de-oiling filter 1 is composed of a powder recovery system, a powder conveying system, and a material bag, and the powder de-oiling filter 1 is connected with several groups of branch manual valves, branch solenoid valves and branch exhaust gas access valves, and the several groups of branch manual valves, branch solenoid valves and branch exhaust gas access valves are respectively connected to the solenoid valve main valve and the manual valve main valve, and the solenoid valve main valve and the manual valve main valve are connected to 0.3-0.5MPA fire water, and the right end of one of the branch manual valves and the branch solenoid valve is connected to the fan. , and a dry filter is connected to the right side of the fan, and a drain valve is arranged on one side of the dry filter, a desorption fan is connected to the right side of the dry filter, and the desorption fan is connected to the first-level zeolite rotor 2, and a second-level zeolite rotor 3 is arranged on the upper right side of the first-level zeolite rotor 2, an emergency system switching valve is installed at the lower end of the second-level zeolite rotor 3, two heat exchangers are installed on the right side of the emergency system switching valve, and the heat exchangers are respectively the first heat exchanger and the second heat exchanger, a chimney is installed on the right side of the second-level zeolite rotor 3, a thermal storage oxidation furnace is installed at the lower right position of the desorption fan, and a combustion-supporting fan is connected to the thermal storage oxidation furnace, and a combustion valve group main valve is arranged on the upper left of the combustion-supporting fan, the thermal storage oxidation furnace is respectively equipped with a first outlet valve, a second outlet valve, a third outlet valve, a first inlet valve, a second inlet valve, a third inlet valve, a first back-intake valve, a second back-intake valve, and a third back-intake valve, and a fan is arranged at the bottom left of the thermal storage oxidation furnace, and a temperature relief valve is also arranged on one side of the thermal storage oxidation furnace.

[0030] By setting up a powder spray oil removal dust collector, the electric field and electrostatic force formed by the dust control agent are used to carry and disperse the dust, so that it falls into the equipment, thereby achieving the effect of reducing and preventing environmental pollution. First, the dust control agent is sprayed on the surface of the dust particles to form a protective layer, which makes the surface of the dust particles protective and prevents the generation of fine particles and collision and adhesion between particles in the high-speed airflow. Secondly, the sprayed dust control agent forms charged particles under the action of the electric field and electrostatic force, and changes its motion state under the field according to factors such as the particle charge and the flow rate and direction of the airflow, and finally settles into the dust removal equipment.

[0031] The zeolite wheel of the utility model is an important industrial waste gas treatment equipment, which is mainly used to adsorb harmful substances in waste gas, such as volatile organic compounds (vanadium trioxide V2O3), sulfides, nitrides, etc. The following are its specific functions:

[0032] Adsorption effect. The zeolite rotor can efficiently capture target gas molecules through its special adsorbent, zeolite material, and reduce the concentration of harmful substances in the exhaust gas to meet environmental protection standards; desorption effect. After adsorption saturation, the zeolite rotor desorbs these harmful substances from the rotor by heating or purging. The desorbed harmful substances can be further treated, such as incineration or catalytic combustion, to achieve resource recovery and reuse; energy saving effect. The special structure of the zeolite rotor enables it to efficiently adsorb harmful substances in the exhaust gas, thereby reducing the energy consumption of subsequent treatment equipment. Through reasonable rotor design and operation, continuous treatment of exhaust gas can be achieved, further improving treatment efficiency and reducing energy consumption; environmental protection effect. The zeolite rotor can effectively reduce the concentration of exhaust gas and reduce pollution to the environment. By using the zeolite rotor, enterprises can fulfill their environmental protection responsibilities, reduce the impact of exhaust gas on the environment, and contribute to the construction of a beautiful ecological environment; air purification. Zeolite rotors are also widely used in the field of indoor air purification. By removing harmful substances and odors in the air, zeolite rotors can help improve indoor air quality and create a healthier and more comfortable living environment; high governance efficiency. The zeolite wheel can efficiently remove harmful substances from the exhaust gas to achieve the purpose of purifying the air; it is safe and stable. The operation of the zeolite wheel is safe and stable, and it forms a complete process flow with upstream and downstream equipment such as fans, wheel-shaped frames, shell chains, bearings, etc.; it is economical and efficient. The zeolite wheel can be combined with the incineration process for deep combustion treatment, which can not only produce efficient treatment effects, but also ensure the best economic balance;

[0033] At the same time, the RTO regenerative incinerator is a device used to treat volatile organic compounds. It decomposes organic waste gas into carbon dioxide and water vapor through high-temperature combustion, and uses regenerative ceramic materials to recover heat to achieve the purpose of energy conservation and reduction of greenhouse gas emissions. RTO furnaces are usually used in factories, workshops, warehouses and other places, which can effectively reduce air pollution, protect the environment and employee health.

[0034] Principle: Low-concentration, high-volume vanadium trioxide V2O3 waste gas first enters the powder spray oil removal dust collector to preliminarily treat the oil and dust in the waste gas, and then enters the high-efficiency filter box to intercept the large particles of dust in the waste gas to ensure that there are no large particles in the waste gas entering the zeolite rotor and the rotor is not blocked. The first and second rotors are connected in series, and the first and second rotor formulas are configured according to the waste gas composition, so as to achieve the effect of adsorbing different substances and achieve standard emissions. The first-level zeolite rotor 2 takes heat from the regenerative incinerator and desorbs through the desorption pipeline. The desorbed waste gas enters the regenerative incinerator for oxidation and decomposition. After desorption, the second-level zeolite rotor 3 enters the front section of the high-efficiency filter box for secondary adsorption. The concentration of the second-level rotor is low after concentration, and the secondary adsorption will not affect the standard emission. The second-level zeolite rotor 3 will merge the desorbed air volume into the front section, reducing the air volume entering the regenerative incinerator and reducing the system operation cost.

[0035] The above shows and describes the basic principles and main features of the utility model and the advantages of the utility model. For those skilled in the art, it is obvious that the utility model is not limited to the details of the above exemplary embodiments, and the utility model can be implemented in other specific forms without departing from the spirit or basic features of the utility model. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the utility model is defined by the attached claims rather than the above description, and it is intended to include all changes that fall within the meaning and scope of the equivalent elements of the claims in the utility model. Any figure mark in the claims should not be regarded as limiting the claims involved.

[0036] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A two-stage runner and RTO exhaust gas treatment system, characterized by: The two-stage rotor and RTO waste gas treatment system comprises a powder de-oiling filter (1), a high-efficiency filter box, a first-stage zeolite rotor (2), a second-stage zeolite rotor (3), a regenerative incinerator, an adsorption pipeline, a desorption pipeline, a plate heat exchanger, an adsorption fan, and a desorption fan; the powder de-oiling filter (1) is composed of a powder recovery system, a powder conveying system, and a material bag, and the powder de-oiling filter (1) is connected to a plurality of groups of branch manual valves, branch solenoid valves, and branch waste gas access valves, and the plurality of groups of branch manual valves, branch solenoid valves, and branch waste gas access valves are respectively connected to the solenoid valve main valve and the manual valve main valve; the solenoid valve main valve and the manual valve main valve Connected to 0.3-0.5MPA fire water; the right end of one of the branch manual valves and the branch solenoid valve is connected to a fan, and a dry filter is connected to the right side of the fan, and a drain valve is provided on one side of the dry filter, a desorption fan is connected to the right side of the dry filter, and the desorption fan is connected to the first-level zeolite wheel (2), and a second-level zeolite wheel (3) is provided on the upper right side of the first-level zeolite wheel (2); an emergency system switching valve is installed at the lower end of the second-level zeolite wheel (3); two heat exchangers are installed on the right side of the emergency system switching valve, and the heat exchangers are respectively a first heat exchanger and a second heat exchanger.

2. A two-stage runner and RTO waste gas treatment system according to claim 1, characterized in that: A chimney is installed on the right side of the secondary zeolite wheel (3).

3. The two-stage runner and RTO exhaust gas treatment system according to claim 1, characterized in that: A regenerative heat oxidation furnace is installed at the lower right position of the desorption blower, and a combustion-supporting blower is connected to the regenerative heat oxidation furnace, and a combustion valve group main valve is provided at the upper left of the combustion-supporting blower.

4. A two-stage runner and RTO waste gas treatment system according to claim 3, characterized in that: The thermal storage oxidizer is respectively equipped with a first outlet valve, a second outlet valve, a third outlet valve, a first inlet valve, a second inlet valve, a third inlet valve, a first back-suction valve, a second back-suction valve, and a third back-suction valve, and a fan is provided at the left bottom of the thermal storage oxidizer.

5. The dual-stage runner and RTO exhaust gas treatment system according to claim 3, characterized in that: A temperature relief valve is also provided on one side of the thermal storage oxidation furnace.

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