A waste gas filtering and discharging device for environmental protection engineering

Abstract

The utility model discloses a kind of waste gas filtering and discharging devices for environmental protection engineering, including tower body main body, the bottom of tower body main body is equipped with gas guide bottom and is connected with air inlet end;The front side hinged connection of tower body main body is equipped with access door, and the both are locked by lock catch component connection;Between access door and front side opening, the sealing gasket is equipped with the installation of reinforced sealing plate;In the inner chamber of tower body main body, from bottom to top, there are uniform gas grid and multiple layers of pull-out filter bin;The top of tower body main body is equipped with exhaust end, and exhaust end is connected with exhaust fan.The new type is equipped with activated carbon layer using drawer type structure, with the advantage of convenient maintenance, replacement, since can be whole layer and is removed to carry out activated carbon replacement, avoids the dust problem of picking operation, to improve environmental protection performance;Furthermore, the operation space of maintenance replacement is sufficient, to strengthen the protection of reinforced sealing plate at access door opening, to maintain the waste gas treatment performance of device.

Description

Technical Field

[0001] This utility model relates to a waste gas filtration and emission device, and more particularly to a waste gas filtration and emission device for environmental protection engineering. Background Technology

[0002] Activated carbon adsorption filtration devices are environmentally friendly equipment that utilizes the adsorption properties of activated carbon to remove harmful substances from waste gas, and are widely used in industrial waste gas treatment and other fields. For vertical small and medium-sized activated carbon adsorption filtration devices, traditionally, a fixed-fill type activated carbon layer is used, that is, the activated carbon layer for filtration is placed on a grid plate (fixed area) fixed inside the tower. If maintenance and replacement of the activated carbon layer are required, the top cover of the tower must be removed first, and then the old carbon must be removed from the top opening manually or with small equipment. This process easily generates carbon dust and is time-consuming, resulting in disadvantages such as poor environmental performance, time and labor costs, and limitations on the number of activated carbon layers that can be set. Utility Model Content

[0003] To address the shortcomings of the aforementioned technologies, this utility model provides an exhaust gas filtration and emission device for environmental engineering.

[0004] To solve the above technical problems, the technical solution adopted by this utility model is: an exhaust gas filtration and emission device for environmental protection engineering, including a tower body, the bottom of the tower body gradually shrinks downward to form a bucket-shaped air guide bottom, and the air guide bottom is connected to an air inlet end. A maintenance door is hinged to the front of the main tower body, and the maintenance door is locked to the main tower body by a locking assembly; a reinforcing sealing plate is installed between the maintenance door and the front opening of the main tower body where the maintenance door is located, and a sealing gasket is fixedly laid on the back side of the reinforcing sealing plate. Inside the main body of the tower, from bottom to top, there are air distribution grids and multi-layer pull-out filter chambers. The top of the main body of the tower is equipped with an exhaust end, which is connected to an exhaust fan.

[0005] Preferably, the pull-out filter compartment includes: a guide rail, a drawer box, and a sliding strip; The guide rail frame consists of a fixing strip and a sliding groove. The fixing strip is welded and fixed to the inner wall of the tower body, and the sliding groove is welded and fixed to the fixing strip and inserted into the sliding strip. The sliding strip is welded and fixed to the side wall of the drawer box.

[0006] Preferably, the edges of the upper and lower walls of the slide groove away from the fixed strip are bent, and the side cross-section of the slide strip is T-shaped.

[0007] Preferably, the sliding bar is provided with a lifting hole. Preferably, the inner cavity of the drawer box is used to hold activated carbon for filtration, and several ventilation holes are provided on the bottom wall of the drawer box.

[0008] Preferably, the gas distribution grid plate is located at the junction of the tower body and the bottom of the gas guide.

[0009] Preferably, a recessed area is formed at the lintel position of the opening on the front side of the tower body, and a threaded hole is provided in the recessed area; a countersunk fixing hole is provided at the top position of the reinforcing sealing plate. When the reinforced sealing plate is installed at the opening on the front side of the tower body, a countersunk bolt is locked between the countersunk fixing hole and the threaded hole.

[0010] Preferably, the locking assembly includes a first bending frame plate welded and fixed to the main body of the tower and a second horizontal frame plate welded and fixed to the maintenance door; The notch positions of the No. 1 bending frame plate and the No. 2 horizontal frame plate are jointly abutted by a strip plate, and a plum blossom twist screw is installed on the strip plate; The No. 1 bending frame plate is fixed with a screw fixing seat, and the screw section of the plum blossom twisting head screw is adapted to be assembled with the screw fixing seat.

[0011] Preferably, the main body of the tower is mounted on a tower frame.

[0012] This utility model discloses a waste gas filtration and emission device for environmental protection engineering. It adopts a drawer-type structure to set the activated carbon layer, which has the advantages of convenient maintenance and replacement. Since the activated carbon can be replaced by removing the entire layer, the dust problem of the removal operation is avoided, thereby improving the environmental protection performance. Furthermore, a full maintenance door is set on the front side of the tower body, which makes the operation space for maintenance and replacement ample. In addition, a reinforced sealing plate is used to strengthen the protection at the opening of the maintenance door, thereby maintaining the normal adsorption and filtration function of the activated carbon in this new waste gas filtration and emission device. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0014] Figure 2 This is a schematic diagram of the main structure of the tower body of this utility model.

[0015] Figure 3 This is a cross-sectional structural diagram of the pull-out filter chamber of this utility model.

[0016] Figure 4 for Figure 3 A schematic diagram of the middle drawer box.

[0017] Figure 5 for Figure 3 Schematic diagram of the middle guide rail frame.

[0018] Figure 6 for Figure 2 A schematic diagram of the structure of the uniform air grid plate.

[0019] Figure 7 This is a schematic diagram of the structure of the reinforced sealing plate of this utility model.

[0020] Figure 8 for Figure 1 A schematic diagram of the central locking assembly.

[0021] In the diagram: 1. Main body of the tower; 2. Bottom of the air guide; 3. Tower frame; 4. Air inlet end; 5. Inspection door; 6. Locking assembly; 61. No. 1 bending frame plate; 62. Bolt fixing seat; 63. Strip plate; 64. Plum blossom twisted head screw; 65. No. 2 horizontal frame plate; 7. Air outlet end; 8. Exhaust fan; 9. Air distribution grid plate; 10. Guide rail seat; 101. Fixing strip; 102. Slide groove; 11. Recessed area; 12. Threaded hole; 14. Drawer box; 141. Vent hole; 15. Sliding strip; 16. Reinforced sealing plate; 161. Countersunk fixing hole; 17. Sealing gasket. Detailed Implementation

[0022] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0023] Example 1 This embodiment discloses a waste gas filtration and emission device for environmental engineering, the overall structure of which is as follows: Figure 1 As shown, the main structure includes a tower body 1. Based on the tower body 1, an air inlet 4 for entering waste gas is provided at the bottom of the tower body 1, and an air outlet 7 for discharging filtered waste gas is provided at the top of the tower body 1. Multiple layers of activated carbon (i.e., pull-out filter chambers) for waste gas filtration are installed in the inner cavity of the tower body 1.

[0024] First, the main body of the tower 1 is supported on the tower frame 3, and is fixed by welding the main body of the tower 1 to the tower frame 3.

[0025] Secondly, the bottom of the main body 1 of the tower gradually narrows downward to form a bucket-shaped air guide bottom 2, which is connected to the air inlet end 4, and the air inlet end 4 is connected to the air inlet pipe. The air guide bottom 2 gradually expands from bottom to top. When the waste gas to be filtered enters the main body 1 of the tower through the air inlet end 4, it first enters the air guide bottom 2, and the air guide bottom 2 with its bucket-shaped structure spreads the waste gas.

[0026] like Figure 2 As shown, in the inner cavity of the main body 1 of the tower, a uniform air grid plate 9 and a multi-layer pull-out filter chamber are arranged sequentially from bottom to top. The structure of the air distribution grid plate 9 is as follows: Figure 6As shown, the gas equalization grid plate 9 is fixed at the junction of the tower body 1 and the bottom of the gas guide 2, which is densely covered with square holes. This allows the exhaust gas from the bottom of the gas guide 2 to be uniformly cut by the gas equalization grid plate 9 before entering the multi-layer pull-out filter chamber for filtration.

[0027] The waste gas filtration and emission device for environmental protection engineering disclosed in this invention adopts a pull-out structure to set the activated carbon layer, that is, to set a pull-out filter chamber to facilitate the replacement and maintenance of the activated carbon layer.

[0028] like Figure 3 As shown, the pull-out filter compartment mainly includes: a guide rail 10, a drawer box 14, and a sliding strip 15; The guide rail frame 10 is fixed to the main body 1 of the tower and provides guiding support for the pull-out movement of the drawer box 14; such as Figure 5 As shown, the guide rail frame 10 consists of a fixing strip 101 and a sliding groove 102. The fixing strip 101 is welded and fixed to the inner wall of the tower body 1 and provides a position for the sliding groove 102. The slide rail 102 is welded and fixed to the fixing strip 101 and is fitted and inserted into the sliding strip 15. The sliding strip 15, as a sliding block, is welded and fixed to the side wall of the drawer box 14. The drawer box 14 is driven to slide along the guide rail frame 10 by the sliding strip 15.

[0029] Furthermore, it should be noted that, under the support of the fixing strip 101, the slide groove 102 is exposed at the front opening door frame position of the tower body 1, which facilitates the assembly of the drawer box 14 onto the guide rail frame 10 via the sliding strip 15.

[0030] The top of the drawer box 14 is an open opening. The inner cavity of the drawer box 14 is used to hold activated carbon for waste gas filtration, preferably activated carbon blocks. Several vent holes 141 are provided on the bottom wall of the drawer box 14 to allow waste gas to pass through the bottom wall of the drawer box 14 and enter the activated carbon for adsorption and filtration. The vent holes 141 are designed so that they do not leak down into the activated carbon.

[0031] Furthermore, preferably, the edges of the upper and lower walls of the slide groove 102 away from the fixing strip 101 are bent, and the upper and lower bent structures together form an anti-side slippage effect. Correspondingly, the slide strip 15 is designed with a T-shaped side cross section to adapt to the slide groove 102 structure with bent edges.

[0032] Thus, the multi-layered pull-out filter chambers distributed at intervals perform multi-stage filtration and adsorption treatment on the exhaust gas. The exhaust gas flows from bottom to top. An exhaust end 7 is provided at the top of the main body 1. At the same time, an exhaust fan 8 is connected to the exhaust end 7. The exhaust fan is located on the rear side (purified gas side) of the exhaust end 7. The exhaust fan 8 generates suction at the air outlet of the main body 1, which creates a negative pressure inside the main body 1, thereby causing the exhaust gas to flow from bottom to top and finally be discharged by the exhaust fan 8.

[0033] Preferably, in order to allow the exhaust gas to pass through the activated carbon inside the drawer box 14 as much as possible, the pull-out filter compartment is sealed around its perimeter. First, the front side of the main body 1 of the tower is hinged to an inspection door 5, which is locked to the main body 1 of the tower via a locking assembly 6; the front side of the pull-out filter compartment is located at the front opening where the inspection door 5 is located.

[0034] A reinforced sealing plate 16 is installed between the inspection door 5 and the front opening of the tower body 1. Figure 7 As shown, a sealing gasket 17 is fixedly laid on the back side of the reinforcing sealing plate 16; For example Figure 2 As shown, a recessed area 11 is formed at the lintel position of the front opening of the main body 1 of the tower body. The recessed area 11 is adapted to the top area of ​​the reinforcing sealing plate 16 where no sealing gasket is provided. Furthermore, a threaded hole 12 is provided in the recessed area 11, which can be implemented by fixing and embedding a countersunk nut. For example Figure 7 As shown, a countersunk fixing hole 161 is provided at the top position of the reinforcing sealing plate 16; When the reinforcing sealing plate 16 is installed at the front opening of the tower body 1, a countersunk bolt is locked between the countersunk fixing hole 161 and the threaded hole 12.

[0035] By adopting structural forms such as countersunk bolts, it is possible to avoid a protrusion at the top position when installing the reinforcing sealing plate 16, thereby avoiding affecting the locking and closing of the inspection door 5; in addition, the use of bolt positioning and fixing can position the reinforcing sealing plate 16 and prevent it from falling off, and can also block and limit the drawer box 14.

[0036] After the inspection door 5 is locked and closed by the latch assembly 6, it will press the reinforced sealing plate 16. The sealing gasket 17 is elastic and fits the front side of the pull-out filter compartment, thereby achieving a front sealing effect.

[0037] Correspondingly, a sealing gasket is also provided at the position where the back of the pull-out filter compartment contacts the main body 1 of the tower. The drawer box 14 is slidable. After the side inspection door is locked and closed, the sealing gasket at the rear position will also be pressed and adhered to the drawer box 14 to a certain extent, thereby achieving the rear sealing effect.

[0038] Regarding the enhanced sealing between the slide groove 102 and the sliding strip 15, the bent shape of the slide groove 102 significantly reduces the probability of exhaust gas leakage. Preferably, a sealing gasket can be further provided at the contact surface between the slide groove 102 and the sliding strip 15 to improve the sealing effect without affecting the sliding of the drawer box 14.

[0039] Therefore, the exhaust gas filtration and emission device for environmental engineering disclosed in this embodiment adopts a design combining an inspection door and a drawer-type pull-out filter compartment, which facilitates the replacement of activated carbon in the drawer box, avoids dust problems during retrieval operations, and improves environmental performance. Furthermore, a reinforced sealing plate 16 with limiting and enhanced sealing performance is installed at the front opening of the tower body. This prevents the pull-out filter compartment from detaching when the inspection door is closed and ensures that the exhaust gas passes through the activated carbon in the drawer box 14 for filtration and adsorption as much as possible, thus maintaining the exhaust gas treatment effect of the exhaust gas filtration and emission device in this embodiment.

[0040] Example 2 This embodiment discloses a waste gas filtration and emission device for environmental protection engineering, based on the structure disclosed in Embodiment 1, such as... Figure 8 As shown, the specific structural configuration of the locking assembly 6 is as follows: The locking assembly 6 includes a first bending frame plate 61 that is welded and fixed to the main body 1 of the tower body, and a second horizontal frame plate 65 that is welded and fixed to the inspection door 5; The notch positions of the No. 1 bending frame plate 61 and the No. 2 horizontal frame plate 65 are jointly abutted by a strip plate 63, and a plum blossom twist screw 64 is installed on the strip plate 63. A screw fixing seat 62 is fixed on the No. 1 bending frame plate 61, and the screw section of the plum blossom twist screw 64 is adapted to be assembled with the screw fixing seat 62.

[0041] Therefore, by cooperating with the toggle screw 64 and the screw fixing seat 62 (usually a nut structure), the opening or closing and locking of the maintenance door can be completed conveniently and simply.

[0042] For multi-layer pull-out filter chambers, the activated carbon filled in the drawer box 14 can be selectively added according to the needs of waste gas filtration. For example, when a multi-layer pull-out filter compartment is designed with three layers, the bottom drawer can be filled with large-pore activated carbon to intercept dust and oil mist from large-molecule VOCs in the exhaust gas, such as esters and long-chain alkanes, protecting the subsequent activated carbon. The middle drawer can be filled with medium-pore activated carbon to filter and adsorb medium-molecular-weight pollutants such as benzene series compounds and alcohols in the exhaust gas; the top drawer can be filled with modified activated carbon, such as impregnated activated carbon, to filter and adsorb acidic or alkaline gases in the exhaust gas.

[0043] Furthermore, the assembly relationship between the sliding strip 15 and the guide rail 10 slide groove 102 allows the drawer box 14 to be completely removed for activated carbon replacement. Preferably, a lifting hole 151 can be opened on the side wall of the sliding strip 15 to facilitate the operation with lifting tools during the removal or installation of the drawer box.

[0044] Therefore, it can be seen that, for the waste gas filtration and emission device for environmental protection engineering disclosed in this new invention, the exhaust fan 8 draws the gas inside the main body of the tower body, so that a negative pressure is formed inside the main body of the tower body. The waste gas to be filtered and adsorbed is pressed in at the air inlet end, diffused at the bottom of the air guide, and then evenly divided by the gas equalization grid plate and passed from bottom to top through multiple pull-out filter chambers. Since the pull-out filter chambers are sealed around, the waste gas can effectively pass through the activated carbon in the drawer box to achieve multi-stage purification. Finally, the purified gas is discharged from the main body of the tower body from the air outlet end.

[0045] The above embodiments are not intended to limit the present utility model, nor is the present utility model limited to the examples given above. Any changes, modifications, additions or substitutions made by those skilled in the art within the scope of the technical solution of the present utility model are also within the protection scope of the present utility model.

Claims

1. A waste gas filtration and emission device for environmental protection engineering, comprising a tower body (1), characterized in that: The bottom of the tower body (1) gradually tapers downward to form a bucket-shaped air guide bottom (2), and the air guide bottom (2) is connected to an air inlet end (4). The front side of the main body of the tower (1) is hinged to an inspection door (5), and the inspection door (5) is locked to the main body of the tower (1) by a locking assembly (6); a reinforcing sealing plate (16) is installed between the inspection door (5) and the front opening of the main body of the tower (1) where the inspection door (5) is located, and a sealing gasket (17) is fixedly laid on the back side of the reinforcing sealing plate (16). In the inner cavity of the main body (1) of the tower, a uniform air grid plate (9) and a multi-layer pull-out filter chamber are arranged sequentially from bottom to top. The top of the tower body (1) is provided with an exhaust end (7), and the exhaust end (7) is connected to an exhaust fan (8).

2. The waste gas filtration and emission device for environmental protection engineering according to claim 1, characterized in that: The pull-out filter compartment includes: a guide rail (10), a drawer box (14), and a sliding bar (15). The guide rail frame (10) consists of a fixing strip (101) and a sliding groove (102). The fixing strip (101) is welded and fixed to the inner wall of the tower body (1). The sliding groove (102) is welded and fixed to the fixing strip (101) and is fitted and inserted into the sliding strip (15). The sliding strip (15) is welded and fixed to the side wall of the drawer box (14).

3. The waste gas filtration and emission device for environmental protection engineering according to claim 2, characterized in that: The upper and lower edges of the groove (102) away from the fixed strip (101) are bent, and the side cross section of the sliding strip (15) is T-shaped.

4. The waste gas filtration and emission device for environmental protection engineering according to claim 3, characterized in that: The sliding bar (15) has a lifting hole (151).

5. The waste gas filtration and emission device for environmental protection engineering according to claim 2, characterized in that: The inner cavity of the drawer box (14) is used to place activated carbon for filtration, and a number of ventilation holes (141) are provided on the bottom wall of the drawer box (14).

6. The waste gas filtration and emission device for environmental protection engineering according to claim 5, characterized in that: The gas equalization grid plate (9) is located at the junction of the tower body (1) and the bottom of the gas guide (2).

7. The waste gas filtration and emission device for environmental protection engineering according to claim 5, characterized in that: A recessed area (11) is formed at the lintel position of the front opening of the main body of the tower (1), and a threaded hole (12) is provided in the recessed area (11). A countersunk fixing hole (161) is provided at the top position of the reinforcing sealing plate (16). When the reinforced sealing plate (16) is installed at the front opening of the tower body (1), a countersunk bolt is locked between the countersunk fixing hole (161) and the threaded hole (12).

8. The waste gas filtration and emission device for environmental protection engineering according to claim 7, characterized in that: The locking assembly (6) includes a first bending frame plate (61) welded and fixed to the tower body (1) and a second horizontal frame plate (65) welded and fixed to the inspection door (5). The first bending frame plate (61) and the second horizontal frame plate (65) abut against a strip plate (63) at the notch position, and a plum blossom twist screw (64) is installed on the strip plate (63). A screw fixing seat (62) is fixed on the No. 1 bending frame plate (61), and the screw section of the plum blossom twist screw (64) is adapted to be assembled with the screw fixing seat (62).

9. The waste gas filtration and emission device for environmental protection engineering according to claim 1, characterized in that: The main body of the tower (1) is erected on the tower frame (3).

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