RTO and zeolite molecular sieve rotating wheel adsorption and desorption device

Abstract

The utility model discloses an RTO and zeolite molecular sieve rotating wheel adsorption and desorption device which comprises an adsorption and desorption box, a modified sieve rotating wheel, a preheating box, a preheating cylinder, an air inlet pipe, a filtering assembly, a speed reducing plate, a separation baffle and a heating plate, the modified sieve rotating wheel is rotationally arranged in the adsorption and desorption box, and the preheating box is located on one side of the adsorption and desorption box; the preheating box is connected with the adsorption and desorption box in a penetrating mode, the preheating cylinder is connected to the other side of the preheating box in a penetrating mode, the gas inlet pipe communicates with the preheating cylinder, a gas inlet valve is arranged on the gas inlet pipe, waste gas can enter the preheating cylinder through the gas inlet pipe when the gas inlet valve is opened, and the filter assembly is detachably connected to one side of the gas inlet pipe. The multiple speed reducing plates are rotationally arranged in the preheating cylinder through the driving base and arranged in the preheating cylinder in a staggered mode. The RTO + zeolite molecular sieve runner adsorption and desorption device is convenient for improving the adsorption and desorption effects on waste gas.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of molecular sieve runner and specifically relates to an RTO + zeolite molecular sieve runner adsorption and desorption device. BACKGROUND

[0002] With the rapid development of industrialization, the waste gas generated in the industrial production process has caused serious influence on the environment and human health, VOCs in the waste gas can be decomposed into water and carbon dioxide under the action of high temperature oxidation, but due to the large amount of waste gas, the investment of the high temperature oxidation treatment equipment is large, and the operation cost is high, in view of this problem, at present, the factory usually utilizes RTO zeolite molecular sieve runner to pre-concentrate the waste gas, improves the concentration and reduces the air volume of high temperature oxidation treatment, and thus greatly saves the operation cost;

[0003] When the waste gas of the factory is treated, after the dust and sundries in the waste gas are removed, the waste gas is uniformly passed through the flow section of the adsorption zone of the molecular sieve runner through reasonable air distribution, and after a certain residence time, physical adsorption is generated between the molecular sieve surface and the organic waste gas molecules under the action of mutual attraction, so that the organic components in the waste gas are adsorbed on the surface area of the molecular sieve, and the waste gas is purified, and the clean gas after purification is discharged through the fan and the chimney, along with the rotation of the runner, the molecular sieve honeycomb adsorption module originally in the adsorption zone is rotated to the desorption zone, the molecular sieve adsorption module adsorbing VOCs components is desorbed under the action of small air volume hot air, and the high concentration waste gas desorbed is sent into the regenerative catalytic catalytic oxidation furnace for harmless treatment, although the zeolite molecular sieve runner can adsorb and desorb the waste gas, but the zeolite molecular sieve runner is not convenient for preheating when the waste gas is input, which will lead to insufficient combustion of the waste gas in the combustion chamber, and will also lead to incomplete removal of the hazardous substances in the waste gas, thereby affecting the final decomposition treatment effect of the waste gas. UTILITY MODEL CONTENTS

[0004] (I) Technical problem solved

[0005] In view of the defects in the prior art, the utility model provides an RTO + zeolite molecular sieve runner adsorption and desorption device to solve the problem that preheating is not convenient when the waste gas is input, which affects the adsorption effect.

[0006] (II) Technical scheme

[0007] In order to achieve the above-mentioned purpose, the utility model provides the following technical scheme: an RTO + zeolite molecular sieve runner adsorption and desorption device, which comprises an adsorption and desorption box, a modified sieve runner, a preheating box, a preheating cylinder, an air inlet pipe, a filter assembly, a deceleration plate, a separation baffle and a heating plate.

[0008] The modified screen wheel is rotatably arranged in the adsorption and desorption box.

[0009] The preheating box is located on one side of the adsorption and desorption box, and the preheating box is connected with the adsorption and desorption box through.

[0010] The preheating cylinder is connected on the other side of the preheating box through.

[0011] The air inlet pipe is connected on the preheating cylinder.

[0012] The filter assembly is detachably connected on one side of the air inlet pipe.

[0013] The plurality of deceleration plates are rotatably arranged in the preheating cylinder through the driving seat, and the plurality of deceleration plates are arranged in the preheating cylinder.

[0014] The plurality of separation baffles are arranged in the preheating box.

[0015] The plurality of heating plates are arranged in the preheating box.

[0016] Further, the filter assembly comprises:

[0017] The filter joint is detachably connected on one side of the air inlet pipe.

[0018] The connecting ring is fixedly sleeved on the air inlet pipe.

[0019] The plurality of connecting screws are threadedly connected between the connecting ring and the filter joint.

[0020] The filter screen is fixedly connected on the inner side wall of the filter joint.

[0021] Further, the plurality of separation baffles are provided with a fixing assembly, and the fixing assembly comprises:

[0022] The plurality of fixing rods are fixedly connected between the plurality of separation baffles.

[0023] The fixing frame is fixedly connected between the plurality of separation baffles on the upper side, and the top end of the preheating box is provided with a fixing opening.

[0024] The two fixing blocks are symmetrically connected on the preheating box, and the fixing blocks are provided with fixing grooves matched with the fixing frame.

[0025] A non-slip mat is fixedly connected in each fixing groove;

[0026] A pull handle is fixedly connected to the top end of the fixing frame.

[0027] Further, the driving seat comprises:

[0028] A motor is installed on the outer sidewall of the preheating cylinder through a mounting seat;

[0029] A driving column is arranged on the preheating cylinder in rotation and is fixedly connected with the output end of the motor and a plurality of speed reduction plates.

[0030] Further, a protective cover is fixedly arranged on the preheating cylinder, a heating space is formed between the protective cover and the preheating cylinder, and a plurality of heating rods are fixedly connected to the inner sidewall of the protective cover.

[0031] Further, a rotation curved surface matched with the inner sidewall of the preheating cylinder is formed on each of the plurality of speed reduction plates.

[0032] (Three) beneficial effects

[0033] Compared with the prior art, the RTO+zeolite molecular sieve rotating adsorption and desorption device has the following beneficial effects:

[0034] 1. In the utility model, under the action of electrostatic force and intermolecular force, VOCs components in waste gas are adsorbed in the micro-pore of the molecular sieve material through the adsorption area of the modified sieve rotating wheel, and the waste gas can be discharged after reaching the standard after being treated by the molecular sieve rotating wheel, with the rotation of the rotating core of the molecular sieve rotating wheel, the molecular sieve module adsorbed with VOCs components rotates to the desorption area, under the action of small air volume hot air, VOCs substances on the molecular sieve module are desorbed, forming small air volume high concentration organic waste gas, under the action of the fan, the desorbed small air volume high concentration organic waste gas is preheated to about 200 DEG C in the heat exchanger, and then enters the catalytic oxidation furnace, under the action of electric heating, is heated to above 280 DEG C, and then enters the catalytic oxidation bed, under the action of the noble metal catalyst, VOCs components in the waste gas are decomposed into water and CO2, and finally are discharged after reaching the standard.

[0035] Meanwhile, the pressure drop generated by the zeolite rotary adsorption of VOCs is extremely low, which can greatly reduce the power consumption, the concentration ratio reaches 3-20 times (the actual value should be determined according to the composition and concentration of the inlet gas), greatly reducing the size of the post-processing equipment and reducing the operation cost, and the RTO+zeolite molecular sieve rotary adsorption and desorption device overcomes the problems of low desorption temperature, incomplete desorption, rapid decline of adsorption performance, flammability and insecurity of activated carbon, and also overcomes the problems of other photocatalytic degradation technologies, such as strong selectivity, low processing efficiency, unstable operation and inability to meet the current high environmental emission requirements.

[0036] 2. In the utility model, through the cooperation of the filter assembly and the air inlet pipe, the impurities in the waste gas entering the preheating cylinder can be filtered, so as to reduce the influence of the impurities in the waste gas on the adsorption and desorption effect.

[0037] 3. In the utility model, through the cooperation of the protective cover and the plurality of heating rods, the inside of the preheating cylinder can be heated, so as to preheat the waste gas in the preheating cylinder, and through the rotation of the plurality of speed reduction plates driven by the driving seat, the flow speed of the waste gas in the preheating cylinder can be slowed down, so as to improve the preheating effect of the preheating cylinder on the waste gas.

[0038] 4. In the utility model, through the cooperation of the plurality of separation baffles, the flow effect of the waste gas can be slowed down again, and through the cooperation of the plurality of heating plates, the waste gas can be preheated again, so as to improve the preheating effect on the waste gas, thereby improving the adsorption and desorption effect on the waste gas. BRIEF DESCRIPTION OF DRAWINGS

[0039] Figure 1 It is a structural schematic diagram of the whole application;

[0040] Figure 2 It is a structural schematic diagram of the cross section of the application;

[0041] Figure 3 It is a structural schematic diagram of the cross section of the application; Figure 2

[0042] Figure 4 It is a structural schematic diagram of the cooperation of the air inlet pipe, the filter joint and the connecting ring of the application;

[0043] Figure 5 It is a structural schematic diagram of the cooperation of the fixed rod, the fixed frame and the pull handle of the application;

[0044] Figure 6 It is a structural schematic diagram of the cooperation of the speed reduction plate, the motor and the driving column of the application.

[0045] ​In the figure: 1, adsorption and desorption box; 2, modified sieve runner; 3, preheating box; 4, preheating cylinder; 5, air inlet pipe; 6, deceleration plate; 7, separation baffle; 8, heating plate; 9, filter joint; 10, connecting ring; 11, connecting screw; 12, filter screen plate; 13, fixed rod; 14, fixed frame; 15, fixed block; 16, non-slip pad; 17, pull handle; 18, motor; 19, drive column; 20, protective cover; 21, heating rod. DETAILED DESCRIPTION

[0046] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the present application.

[0047] Please refer to Figures 1 to 6 A RTO+zeolite molecular sieve runner adsorption and desorption device, comprising an adsorption and desorption box 1, a modified sieve runner 2, a preheating box 3, a preheating cylinder 4, an air inlet pipe 5, a filter assembly, a deceleration plate 6, a separation baffle 7, and a heating plate 8. The modified sieve runner 2 is rotatably arranged in the adsorption and desorption box 1. The modified sieve runner 2 rotates at a speed of 1-6 revolutions per hour during normal operation. The runner operation can be divided into three regions, namely a treatment zone, a cooling zone, and a regeneration zone. Gases containing organic solvents (VOCs or odor gases) become relatively clean air after flowing through the treatment zone. If the organic pollutant concentration in the inlet air is low, the organic solvent content in the exhaust air after treatment can be reduced to below 10 mg / m3. Part of the air containing organic solvents (VOCs or odor gases) is pushed by a regeneration fan to flow through the cooling zone and is heated to a certain temperature, and then flows through the regeneration zone of the runner. Due to the heating of the regeneration air in the regeneration zone of the runner, the organic solvents (VOCs or odor gases) adsorbed in this region are desorbed and carried away by the regeneration air. The preheating box 3 is located on one side of the adsorption and desorption box 1, and the preheating box 3 is connected with the adsorption and desorption box 1. The preheating cylinder 4 is connected on the other side of the preheating box 3. The air inlet pipe 5 is connected to the preheating cylinder 4. An air inlet valve is arranged on the air inlet pipe 5. When the air inlet valve is opened, waste gas can enter the preheating cylinder 4 through the air inlet pipe 5. The filter assembly is detachably connected to one side of the air inlet pipe 5. The deceleration plate 6 is arranged in multiple. The multiple deceleration plates 6 are rotatably arranged in the preheating cylinder 4 through a driving seat, and the multiple deceleration plates 6 are arranged in the preheating cylinder 4 in a staggered manner. The separation baffle 7 is arranged in multiple. The multiple separation baffles 7 are installed in the preheating box 3 in a staggered manner. The flow speed of the waste gas in the preheating box 3 can be slowed down to facilitate the preheating of the waste gas. The heating plate 8 is arranged in multiple. The multiple heating plates 8 are all installed in the preheating box 3.

[0048] Specifically, the filter assembly includes a filter joint 9, a connecting ring 10, connecting screws 11 and a filter screen 12. The filter joint 9 is detachably connected to one side of the air inlet pipe 5, and the other side of the filter joint 9 can be communicated with the exhaust pipe. The connecting ring 10 is fixedly sleeved on the air inlet pipe 5. The connecting screws 11 are provided in plurality, and the plurality of connecting screws 11 are threadedly connected between the connecting ring 10 and the filter joint 9. By screwing the plurality of connecting screws 11 between the connecting ring 10 and the filter joint 9, the air inlet pipe 5 can be connected and detached on one side of the filter joint 9, so as to facilitate the replacement and cleaning of the filter joint 9. The filter screen 12 is fixedly connected to the inner side wall of the filter joint 9.

[0049] When the air inlet valve is opened, the exhaust gas enters the air inlet pipe 5 through the filter joint 9. In the flow process of the exhaust gas, the filter screen 12 can filter the impurities in the exhaust gas, so as to reduce the influence of the impurities on the adsorption and desorption effect of the exhaust gas.

[0050] Specifically, a plurality of fixed components are provided between the plurality of partition baffles 7. The fixed component includes a fixed rod 13, a fixed frame 14, a fixed block 15, an anti-skid pad 16 and a pull handle 17. The fixed rod 13 is provided in plurality, and the plurality of fixed rods 13 are fixedly connected between the plurality of partition baffles 7. The fixed frame 14 is fixedly connected between the plurality of partition baffles 7 on the upper side, and the top end of the preheating box 3 is provided with a fixed port. The fixed block 15 is provided in two, and the two fixed blocks 15 are symmetrically connected to the preheating box 3. A fixed groove matched with the fixed frame 14 is formed in the fixed block 15. The anti-skid pad 16 is fixedly connected in each fixed groove, so as to increase the stability of the fixed frame 14 placed in the fixed groove. The pull handle 17 is fixedly connected to the top end of the fixed frame 14, and the fixed frame 14 can be moved on the preheating box 3.

[0051] The plurality of fixed rods 13 can stably connect the plurality of partition baffles 7, so as to simultaneously install and detach the plurality of partition baffles 7 in the preheating box 3. When the fixed frame 14 is placed on the top end of the preheating box 3, the two sides of the fixed frame 14 can enter the two fixed grooves respectively, so as to stably place the fixed frame 14 on the preheating box 3, thereby stably installing the plurality of partition baffles 7 in the preheating box 3.

[0052] Specifically, the drive seat includes a motor 18 and a drive column 19. The motor 18 is installed on the outer side wall of the preheating cylinder 4 through a mounting seat. The drive column 19 is rotatably arranged on the preheating cylinder 4 and is fixedly connected with the output end of the motor 18 and the plurality of speed reduction plates 6. A rotating curved surface matched with the inner side wall of the preheating cylinder 4 is formed in the plurality of speed reduction plates 6, so as to stably rotate the speed reduction plates 6 in the preheating cylinder 4. A protective cover 20 is fixedly sleeved on the preheating cylinder 4, and a heating space is formed between the protective cover 20 and the preheating cylinder 4. A plurality of heating rods 21 are fixedly connected to the inner side wall of the protective cover 20, so as to preheat the exhaust gas in the preheating cylinder 4.

[0053] The motor 18 is started to drive the driving column 19 to rotate, so that the driving column 19 drives the plurality of speed reduction plates 6 to rotate, so as to slow down the flow speed of the exhaust gas in the preheating cylinder 4, so that the exhaust gas in the preheating cylinder 4 can be fully preheated.

[0054] It should be further pointed out that, when the RTO+zeolite molecular sieve rotating adsorption and desorption device is used, the exhaust gas passes through the adsorption zone of the modified sieve rotating wheel 2, and under the action of electrostatic force and intermolecular force, the VOCs components in the exhaust gas are adsorbed in the micro-porous channels of the molecular sieve material. The exhaust gas treated by the molecular sieve rotating wheel can be discharged up to the standard. With the rotation of the molecular sieve rotating wheel core, the molecular sieve module adsorbed with VOCs components rotates to the desorption zone. Under the action of small air volume hot air, the VOCs substances on the molecular sieve module are desorbed, forming small air volume high concentration organic exhaust gas. The small air volume high concentration organic exhaust gas desorbed is preheated to about 200 DEG C by the fan, and then enters the catalytic oxidation furnace. Under the action of electric heating, the temperature is raised to above 280 DEG C, and then enters the catalytic oxidation bed layer. Under the action of noble metal catalyst, the VOCs components in the exhaust gas are decomposed into water and CO2, and finally discharged up to the standard.

[0055] The present scheme overcomes the problems of low desorption temperature of activated carbon, incomplete desorption, rapid decline of adsorption performance, flammability, and safety, and also overcomes the shortcomings of other photocatalytic degradation technologies, such as strong selectivity, low treatment efficiency, unstable operation, and inability to meet the current high environmental protection emission requirements. The organic matter (VOCs or odor) in the exhaust gas is all concentrated in the regeneration air. According to the VOCs content of the exhaust gas, the high concentration ratio of the regeneration gas flow can reach 20 times (the actual value should be determined according to the composition and concentration of the inlet air). The high concentration regeneration air can enter the high temperature oxidation equipment for harmless oxidation treatment, while ensuring a very high tail gas purification efficiency, greatly saving energy consumption, converting the originally high air volume and low concentration VOCs exhaust gas into low air volume and high concentration exhaust gas, reducing the cost of the back-end treatment equipment, and greatly reducing the power consumption caused by the zeolite rotating adsorption of VOCs. The concentration multiple is 3-20 (the actual value should be determined according to the composition and concentration of the inlet air), which greatly reduces the size of the aftertreatment equipment and reduces the operating cost. The exhaust gas after concentration by the rotating wheel can meet the national and local emission standards.

[0056] And, the key of the scheme is the modified sieve rotating wheel 2, the modified sieve rotating wheel 2 is a microporous crystal of aluminosilicate metal salt, the skeleton structure is formed by the mutual connection of silicon-oxygen tetrahedron and aluminum-oxygen tetrahedron through sharing oxygen atoms, the surface is solid skeleton, the inside is sieve-shaped structure, the holes are connected with each other through the channels, the pore size is same, the distribution is very uniform, the modified molecular sieve can adsorb molecules according to the size of the internal holes, the modified zeolite molecular sieve has great specific surface area (300-1000 m2 / g), the internal holes have strong coulomb field and polarity, therefore, the adsorption capacity of the adsorbate molecules is very strong, in actual work, the total design air volume is 60000 m3 / h, the modified sieve rotating wheel 2 recommends to select 2650-400 type molecular sieve rotating wheel model;

[0057] In summary, first, the intake valve is opened, so that the exhaust gas is discharged into the preheating cylinder 4 through the filter joint 9 and the intake pipe 5, in the flow process of the exhaust gas, the filter screen plate 12 filters the impurities in the exhaust gas, at the same time, the motor 18 is started, the motor 18 drives the driving column 19 to rotate, the driving column 19 drives the plurality of speed reduction plates 6 to rotate, which can slow down the flow speed of the exhaust gas in the preheating cylinder 4, so as to preliminarily and fully preheat the exhaust gas, then the exhaust gas enters the preheating box 3, is heated again by the plurality of heating plates 8, and is fully preheated, after the preheated exhaust gas enters the adsorption and desorption box 1, the VOCs components in the exhaust gas are adsorbed in the micro-pore of the modified sieve rotating wheel 2 under the action of electrostatic force and intermolecular force, and the exhaust gas treated by the modified sieve rotating wheel 2 can be discharged up to standard.

[0058] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. An RTO + zeolite molecular sieve rotor adsorption-desorption device, characterized in that, include: Adsorption-desorption chamber (1); Modified sieve rotor (2), which is rotatably disposed inside the adsorption-desorption box (1); A preheating box (3) is located on one side of the adsorption-desorption box (1), and the preheating box (3) is connected to the adsorption-desorption box (1) through the box. A preheating cylinder (4) is connected through to the other side of the preheating box (3); An air inlet pipe (5) is connected to the preheating cylinder (4); A filter assembly, which is detachably connected to one side of the air intake pipe (5); Speed ​​reduction plate (6), wherein multiple speed reduction plates (6) are provided, and multiple speed reduction plates (6) are rotatably disposed in the preheating cylinder (4) by a drive seat, and multiple speed reduction plates (6) are staggered in the preheating cylinder (4); A partition baffle (7) is provided, and multiple partition baffles (7) are installed in the preheating box (3) in a staggered manner; Heating plate (8), wherein multiple heating plates (8) are provided, and multiple heating plates (8) are installed in the preheating box (3).

2. The RTO + zeolite molecular sieve rotor adsorption-desorption device according to claim 1, characterized in that, The filtering component includes: A filter connector (9) is detachably connected to one side of the air intake pipe (5); A connecting ring (10) is fixedly fitted onto the air intake pipe (5); A plurality of connecting screws (11) are provided, and the plurality of connecting screws (11) are threadedly connected between the connecting ring (10) and the filter connector (9); A filter screen (12) is fixedly connected to the inner wall of the filter joint (9).

3. The RTO + zeolite molecular sieve rotor adsorption-desorption device according to claim 2, characterized in that, A fixing assembly is provided between the plurality of the partition baffles (7), the fixing assembly comprising: A fixing rod (13) is provided, and multiple fixing rods (13) are fixedly connected between multiple partition baffles (7); A fixing frame (14) is fixedly connected between a plurality of partition baffles (7) located on the upper side, and a fixing opening is provided at the top of the preheating box (3); Fixing block (15), the fixing block (15) is configured as two, the two fixing blocks (15) are symmetrically connected to the preheating box (3), and the fixing block (15) is provided with a fixing groove that matches the fixing frame (14); Anti-slip mat (16), the anti-slip mat (16) is fixedly connected in each of the fixing grooves; A handle (17) is fixedly connected to the top of the fixing frame (14).

4. The RTO + zeolite molecular sieve rotor adsorption-desorption device according to claim 3, characterized in that, The drive unit includes: Motor (18), which is mounted on the outer wall of the preheating cylinder (4) via a mounting base; A drive column (19) is rotatably mounted on the preheating cylinder (4), and the drive column (19) is fixedly connected to the output end of the motor (18) and multiple speed reducers (6).

5. The RTO + zeolite molecular sieve rotor adsorption-desorption device according to claim 4, characterized in that, A protective cover (20) is fixedly fitted on the preheating cylinder (4), and a heating space is formed between the protective cover (20) and the preheating cylinder (4). Multiple heating rods (21) are fixedly connected to the inner wall of the protective cover (20).

6. The RTO + zeolite molecular sieve rotor adsorption-desorption device according to claim 5, characterized in that, Each of the speed reduction plates (6) has a rotating curved surface that matches the inner sidewall of the preheating cylinder (4).

Images