A multi-stage distillation harmful substance removal device

Abstract

The utility model discloses a multistage type distillation harmful substance removal device relates to waste gas treatment technical field, including the purification tank, and the both ends of purification tank are connected with pretreatment tank no.

Description

Technical Field

[0001] This utility model relates to the field of waste gas treatment technology, specifically to a multi-stage distillation device for removing harmful substances. Background Technology

[0002] Distillation is a thermodynamic separation process that utilizes the different boiling points of components in a mixed liquid or liquid-solid system. It involves evaporating the lower-boiling-point component and then condensing it to separate the entire component. It is a unit operation combining evaporation and condensation. Compared with other separation methods such as extraction, filtration, and crystallization, its advantage is that it does not require the use of solvents other than those used in the system components, thus ensuring that no new impurities are introduced. A certain amount of toluene waste gas is generated during partial distillation. Toluene removal waste gas purification equipment is used to treat industrial waste gas containing toluene in order to reduce toluene emissions into the atmosphere.

[0003] Chinese patent CN221732859U discloses a waste gas purification device for removing toluene, including a purification cylinder, an ethanol storage tank, and a slide. An air inlet channel is provided on one side of the outer wall of the purification cylinder, and slides are installed on the inner walls of the bottom ends of both sides of the purification cylinder. A set of ethanol storage tanks is welded to the outer wall of the top end of the purification cylinder, and a collection tank is connected to the outer wall of the bottom end of the purification cylinder through a pipe. A first valve is installed on the side wall of the collection tank, and the purification cylinder is connected to the main body of the purification device through a pipe.

[0004] The distillation-based harmful substance removal device in this Chinese patent and existing technology pre-treats toluene using only one pre-treatment device, resulting in a small amount of gas being processed, which seriously affects the purification efficiency of the device. At the same time, although it can remove impurities from the activated carbon plate, it cannot discharge the impurities from the purification device. When too many impurities accumulate, the purification effect of the activated carbon plate is also affected, which is a major limitation. Utility Model Content

[0005] In view of the shortcomings of the prior art, this utility model provides a multi-stage distillation device for removing harmful substances, so as to overcome the above-mentioned technical problems existing in the existing related technologies.

[0006] A multi-stage distillation device for removing harmful substances includes a purification tank. Two pretreatment tanks, a first pretreatment tank and a second pretreatment tank, are connected to the two ends of the purification tank via vent pipes. The inner wall of the purification tank has a slot, and an adjustment assembly is located at the top. The adjustment assembly includes a screw, with a top plate threaded onto the outer wall of the screw. An activated carbon plate, several activated carbon plates, and a shell are fixedly installed at the bottom of the top plate. Rotation of the screw drives the top plate to move vertically. A sealing heat-absorbing plate is fixedly installed on the inner wall of the purification tank, and a support plate and a guide plate are fixedly installed on the outer wall. Two guide plates are fixedly installed on the top of the support plate, and a moving assembly is provided. The moving assembly includes a reciprocating screw and a fixed plate. A pusher plate is fixedly installed at one end of the fixed plate via two limiting rods. The reciprocating screw can drive the pusher plate to slide against the slot.

[0007] Preferably, the adjustment assembly further includes a motor, which is fixedly installed on the top of the purification tank. The screw is fixedly connected to the output end of the motor, and a protective cover is fixedly installed on the top of the purification tank.

[0008] Preferably, the adjustment assembly further includes two guide rods, both of which are fixedly connected to the top of the top plate and slidably engaged with the purification tank, and limit blocks are fixedly installed on the outer wall of the guide rods.

[0009] Preferably, the bottom of the activated carbon plate and the outer shell abuts against the top of the sealing heat-absorbing plate, and the sealing heat-absorbing plate divides the interior of the purification tank into a treatment chamber and a heating chamber.

[0010] Preferably, the moving component further includes a second motor and a slider. A mounting base is fixedly installed at one end of the bearing plate, the second motor is fixedly installed at one end of the mounting base, the reciprocating screw is fixedly connected to the output end of the second motor, the slider is threaded onto the outer wall of the reciprocating screw and fixedly connected to the fixed plate, and the two sides of the fixed plate abut against the two guide plates respectively.

[0011] Preferably, both the outer wall of the purification tank and the outer wall of the top plate are provided with ventilation holes.

[0012] Preferably, an ethanol storage tank and a collection tank are fixedly installed at the top and bottom of both the first pretreatment tank and the second pretreatment tank.

[0013] Due to the adoption of the above technical solution, the technological progress achieved by this utility model compared to the prior art is as follows:

[0014] 1. This utility model provides a multi-stage distillation device for removing harmful substances. Through the cooperation between the purification tank, pretreatment tank one, pretreatment tank two, vent pipe, ethanol storage tank, collection tank and outer shell, both pretreatment tank one and pretreatment tank two can pretreat toluene waste gas, and then the treated waste gas is transferred to the purification tank for further treatment, effectively improving the purification efficiency of the equipment.

[0015] 2. This utility model provides a multi-stage distillation device for removing harmful substances. By adjusting the components, outer shell, top plate, activated carbon plate one, activated carbon plate two, sealed heat-absorbing plate, and slot, after heating the sealed heat-absorbing plate and discharging the impurities in activated carbon plate one and activated carbon plate two, the adjusting components can make the top plate and outer shell move vertically upward, so that the outer shell is no longer sealing the slot. This allows the operator to clean the impurities from the top of the sealed heat-absorbing plate through the slot and discharge them into the purification tank. This facilitates the cleaning of impurities, prevents impurities from being stored in the purification tank for a long time and affecting the purification function of activated carbon plate one and activated carbon plate two, and improves the cleaning effect and applicability.

[0016] 3. This utility model provides a multi-stage distillation device for removing harmful substances. Through the cooperation between the moving component, the supporting plate, the guide plate, the pusher plate and the slot, the moving component can move the pusher plate horizontally, so that the pusher plate can push the impurities on the top of the sealed heat absorption plate out of the slot when it moves, effectively improving the cleaning efficiency of impurities. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0018] Figure 2 This is a cross-sectional structural diagram of the purification tank in this utility model;

[0019] Figure 3 This is a cross-sectional structural diagram of the top plate in this utility model;

[0020] Figure 4 This is a three-dimensional structural diagram of the movable component in this utility model;

[0021] Figure 5 for Figure 4 An enlarged schematic diagram of part A in the middle.

[0022] In the picture:

[0023] 1. Purification tank; 101. Sealed heat absorption plate; 102. Groove; 103. Vent hole; 2. Protective cover; 3. Adjustment component; 301. Motor 1; 302. Screw 1; 304. Guide rod; 305. Limiting block; 4. Top plate; 403. Outer shell; 401. Activated carbon plate 1; 402. Activated carbon plate 2; 5. Bearing plate; 501. Guide plate; 6. Pushing plate; 7. Moving component; 700. Mounting base; 701. Motor 2; 702. Reciprocating screw; 703. Slider; 704. Fixing plate; 705. Limiting rod; 801. Pretreatment tank 1; 802. Pretreatment tank 2; 803. Vent pipe; 9. Ethanol storage tank; 10. Collection tank; 11. Guide plate. Detailed Implementation

[0024] To make the technical means, creative features, objectives, and effects of this utility model easier to understand, the following describes this utility model in conjunction with specific embodiments:

[0025] like Figure 1-5 As shown, this utility model provides a multi-stage distillation device for removing harmful substances, including a purification tank 1. The two ends of the purification tank 1 are connected to a pretreatment tank 1 801 and a pretreatment tank 2 802 through a vent pipe 803. An ethanol storage tank 9 and a collection tank 10 are fixedly installed at the top and bottom of the pretreatment tank 1 801 and the pretreatment tank 2 802.

[0026] First, toluene waste gas is injected into pretreatment tank 1 (801) and pretreatment tank 2 (802). Then, ethanol in ethanol storage tank 9 is discharged into pretreatment tank 1 (801) and pretreatment tank 2 (802) to dissolve the toluene waste gas in the ethanol liquid. The mixed solution flows through pretreatment tank 1 (801) and pretreatment tank 2 (802) to the collection tank 10 for collection. The residual toluene gas flows into the purification tank 1, where activated carbon plates 1 (401) and 2 (402) adsorb the residual toluene waste gas for secondary purification. By increasing the pretreatment structure of the equipment, more toluene waste gas can be pretreated at the same time, thereby improving the working efficiency of the equipment.

[0027] like Figure 2-3As shown, in one embodiment, the inner wall of the purification tank 1 has a slot 102, and an adjustment assembly 3 is provided on the top. The adjustment assembly 3 includes a screw 302, and a top plate 4 is threaded onto the outer wall of the screw 302. Activated carbon plate 401, several activated carbon plates 402, and a shell 403 are fixedly installed on the bottom of the top plate 4. When the screw 302 rotates, it drives the top plate 4 to move vertically. A sealing heat-absorbing plate 101 is fixedly installed on the inner wall of the purification tank 1. The adjustment assembly 3 also includes a motor 301, which is fixedly installed on the top of the purification tank 1. The screw 302 and the motor 301 are connected to each other. The output end of 01 is fixedly connected. A protective cover 2 is fixedly installed on the top of the purification tank 1. The adjustment component 3 also includes two guide rods 304. Both guide rods 304 are fixedly connected to the top of the top plate 4 and slide in cooperation with the purification tank 1. Limiting blocks 305 are fixedly installed on the outer wall of the guide rods 304. The bottom of the activated carbon plate 402 and the outer shell 403 abut against the top of the sealing heat absorption plate 101. The sealing heat absorption plate 101 divides the interior of the purification tank 1 into a processing chamber and a heating chamber. Ventilation holes 103 are opened on the outer wall of the purification tank 1 and the outer wall of the outer shell 403. A heating component is provided in the heating chamber.

[0028] After prolonged use of activated carbon plates 401 and 402, the purification operation of the equipment is suspended, and the heating components in the heating chamber are activated. High temperature is used to carbonize or desorb the impurities in activated carbon plates 401 and 402. Then, motor 301 is started. When the output end of motor 301 rotates, it drives screw 302 to rotate. When screw 302 rotates, it engages with the top plate 4. Under the action of guide rod 304, the top plate 4 drives the outer shell 403, activated carbon plates 401 and 402 to move vertically upward. When the top plate 4 abuts against the top of the inner wall of the purification tank 1, motor 301 is turned off. At this time, slot 102 is opened, and the staff can directly clean up the detached impurities. This avoids the long-term storage of impurities in the purification tank 1, which affects the purification function of activated carbon plates 401 and 402, and improves the cleaning effect and applicability.

[0029] The heating element is existing technology and will not be explained here.

[0030] like Figure 4-5As shown, in one embodiment, a support plate 5 and a guide plate 11 are fixedly installed on the outer wall of the purification tank 1. Two guide plates 501 are fixedly installed on the top of the support plate 5, and a moving component 7 is provided. The moving component 7 includes a reciprocating screw 702 and a fixed plate 704. A pusher plate 6 is fixedly installed on one end of the fixed plate 704 through two limiting rods 705. The reciprocating screw 702 can drive the pusher plate 6 to slide and engage with the slot 102. The moving component 7 also includes a second motor 701 and a slider 703. A mounting base 700 is fixedly installed on one end of the support plate 5. The second motor 701 is fixedly installed on one end of the mounting base 700. The reciprocating screw 702 is fixedly connected to the output end of the second motor 701. The slider 703 is threaded onto the outer wall of the reciprocating screw 702 and fixedly connected to the fixed plate 704. The two sides of the fixed plate 704 abut against the two guide plates 501 respectively.

[0031] When the top plate 4 abuts against the top of the inner wall of the purification tank 1, motor 301 is turned off. At this time, the outer shell 403, activated carbon plate 401, and activated carbon plate 402 are all away from the sealed heat absorption plate 101. Then, motor 701 is started. When the output end of motor 701 rotates, it drives the reciprocating screw 702 to rotate. When the reciprocating screw 702 rotates, it engages with the slider 703, causing the slider 703 and the fixed plate 704 to slide between the two guide plates 501. When the fixed plate 704 moves, it drives the push... The material plate 6 moves horizontally, so that when the pusher plate 6 slides into the slot 102, it can push out the impurities that fall from the activated carbon plate 1 (401) and activated carbon plate 2 (402) on the top of the sealed heat absorption plate 101 from the purification tank 1. This quickly cleans the activated carbon plate 1 (401) and activated carbon plate 2 (402), allowing them to be reused. The electric cleaning method increases the cleaning speed of impurities and reduces the difficulty of cleaning impurities, further improving applicability.

[0032] The working principle of this multi-stage distillation harmful substance removal device will be explained in detail below:

[0033] First, toluene waste gas is injected into pretreatment tank 1 (801) and pretreatment tank 2 (802). Then, ethanol in ethanol storage tank 9 is discharged into pretreatment tank 1 (801) and pretreatment tank 2 (802) to dissolve the toluene waste gas in the ethanol liquid. The mixed solution flows through pretreatment tank 1 (801) and pretreatment tank 2 (802) to the inside of collection tank 10 for collection. The residual toluene gas flows into purification tank 1, where activated carbon plates 1 (401) and 2 (402) adsorb the residual toluene waste gas for secondary purification. By increasing the pretreatment structure of the equipment, more toluene waste gas can be pretreated at the same time, thereby improving the working efficiency of the equipment.

[0034] After prolonged use of activated carbon plates 401 and 402, the purification operation of the equipment is suspended. The heating components in the heating chamber are activated, and the high temperature is used to carbonize or desorb the impurities in activated carbon plates 401 and 402. Then, motor 301 is started. When the output end of motor 301 rotates, it drives screw 302 to rotate. When screw 302 rotates, it engages with the threaded top plate 4. Under the action of guide rod 304, top plate 4 drives the outer shell 403, activated carbon plates 401 and 402 to move vertically upward. When top plate 4 abuts against the top of the inner wall of purification tank 1, motor 301 is turned off. At this time, the outer shell 403, activated carbon plates 401 and 402... 02 are all away from the sealed heat absorption plate 101. Then, the second motor 701 is started. When the output end of the second motor 701 rotates, it drives the reciprocating screw 702 to rotate. When the reciprocating screw 702 rotates, it engages with the slider 703, so that the slider 703 and the fixed plate 704 slide between the two guide plates 501. When the fixed plate 704 moves, it drives the pusher plate 6 to move horizontally. When the pusher plate 6 slides with the slot 102, it can discharge the impurities that fall from the activated carbon plate 401 and activated carbon plate 402 on the top of the sealed heat absorption plate 101 from the purification tank 1, thereby quickly cleaning the activated carbon plate 401 and activated carbon plate 402, so that the activated carbon plate 401 and activated carbon plate 402 can be recycled.

[0035] The present invention has been described in detail above. However, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, any modifications or improvements that do not depart from the spirit of the present invention are within the protection scope of the present invention.

Claims

1. A multi-stage distillation device for removing harmful substances, comprising a purification tank (1), characterized in that: The purification tank (1) is connected to a pretreatment tank one (801) and a pretreatment tank two (802) at both ends via ventilation pipes (803). The inner wall of the purification tank (1) has a slot (102), and an adjustment assembly (3) is installed on the top. The adjustment assembly (3) includes a screw (302), the outer wall of which is threaded with a top plate (4). Activated carbon plate one (401), several activated carbon plates two (402), and a shell (403) are fixedly installed on the bottom of the top plate (4). When the screw (302) rotates, it drives the top plate (4) to move vertically. A sealing heat-absorbing plate (101) is fixedly installed on the inner wall of the purification tank (1), and a bearing plate (5) and a guide plate (11) are fixedly installed on the outer wall of the purification tank (1). Two guide plates (501) are fixedly installed on the top of the bearing plate (5), and a moving component (7) is provided. The moving component (7) includes a reciprocating screw (702) and a fixed plate (704). A pusher plate (6) is fixedly installed on one end of the fixed plate (704) through two limiting rods (705). The reciprocating screw (702) can drive the pusher plate (6) to slide and engage with the slot (102).

2. The multi-stage distillation device for removing harmful substances according to claim 1, characterized in that: The adjustment component (3) also includes a motor (301), which is fixedly installed on the top of the purification tank (1). The screw (302) is fixedly connected to the output end of the motor (301), and a protective cover (2) is fixedly installed on the top of the purification tank (1).

3. The multi-stage distillation device for removing harmful substances according to claim 1, characterized in that: The adjustment assembly (3) also includes two guide rods (304), both of which are fixedly connected to the top of the top plate (4) and slide in cooperation with the purification tank (1). Limiting blocks (305) are fixedly installed on the outer wall of the guide rods (304).

4. The multi-stage distillation device for removing harmful substances according to claim 1, characterized in that: The bottom of the activated carbon plate (402) and the outer shell (403) abuts against the top of the sealed heat-absorbing plate (101), which divides the interior of the purification tank (1) into a processing chamber and a heating chamber.

5. The multi-stage distillation device for removing harmful substances according to claim 1, characterized in that: The moving component (7) also includes a second motor (701) and a slider (703). A mounting base (700) is fixedly installed at one end of the bearing plate (5). The second motor (701) is fixedly installed at one end of the mounting base (700). The reciprocating screw (702) is fixedly connected to the output end of the second motor (701). The slider (703) is threaded onto the outer wall of the reciprocating screw (702) and fixedly connected to the fixing plate (704). The two sides of the fixing plate (704) abut against the two guide plates (501) respectively.

6. The multi-stage distillation device for removing harmful substances according to claim 1, characterized in that: Ventilation holes (103) are provided on the outer wall of the purification tank (1) and the outer wall of the top plate (4).

7. The multi-stage distillation device for removing harmful substances according to claim 1, characterized in that: Ethanol storage tank (9) and collection tank (10) are fixedly installed on the top and bottom of both the pretreatment tank 1 (801) and the pretreatment tank 2 (802).

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