An assembled modular biological filler purification tower

Abstract

The present application relates to a kind of assembled modular biological filler purification tower.The purification tower includes tower body, and the tower body is internally provided with shelf and biological filler module, at least two installation areas are provided on each shelf, and each biological filler module is horizontally movably installed in the installation area by mounting structure.Two biological filler modules with the same extension direction are provided with porous partition between adjacent ones, and the upper and lower sidewalls of the shell of biological filler module and the vertical sidewall towards adjacent biological filler module are all air-permeable sidewalls.Airtight cloth roll winding and unwinding device is provided on the upper end of each installation area on the shell shelf, and one end of the airtight cloth roll is connected to the upper sidewall of the biological filler module.When the biological filler module is extended to position, the rear side seals the installation area, and the airtight cloth roll seals and covers the upper part of the installation area, and the gas in the installation area enters the adjacent biological filler module through the porous partition.When replacing filler, it is not necessary to stop the machine, and the structure of the purification tower makes it very convenient and safe to replace and clean the filler.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of waste gas treatment, in particular to an assembled modular biological filler purification tower. BACKGROUND

[0002] With the rapid development of social economy and science and technology, the industrialization process at home and abroad is accelerating, which causes the environmental pollution problem to be increasingly serious, such as frequent severe pollution events, common haze, natural disasters, etc. Among them, air pollution not only has a complex formation mechanism but also has many components that are difficult to handle, especially the waste gas pollution caused by factory production has the characteristics of large discharge, high hazard, and foul odor, which causes serious impact on the surrounding ecological environment and residents' life, and also poses a severe challenge to the air pollution prevention and control work in China.

[0003] The biological filler tower is one of the main processes for waste gas purification, and compared with other waste gas purification processes, it has the advantages of simple process, low running cost, no secondary pollution, etc., and is suitable for degrading waste gas containing various pollutants and foul odor gas. The basic principle is to use the characteristics of strong and fast adaptability of microorganisms to pollutants to purify and absorb pollutants, and to convert waste gas into harmless and simple substances (such as CO2, H2O, etc.).

[0004] However, the current biological filler tower has the disadvantages of large filler loss and troublesome cleaning and maintenance due to technical limitations, and sometimes has the problems of uneven gas-liquid distribution and poor contact, which reduces the purification efficiency. These problems in the actual process affect the practical application of the biological filler tower. In order to increase the application scene of the biological filler tower and improve its purification efficiency, the filler replacement method and cleaning and maintenance process of the biological filler tower must be optimized and adjusted accordingly. SUMMARY

[0005] The purpose of the present application is to provide an assembled modular biological filler purification tower to solve the problems of inconvenient filler replacement and cleaning and maintenance in the biological tower in the prior art.

[0006] In order to achieve the above object, the assembly module type biological filler purification tower adopts the following technical scheme: an assembly module type biological filler purification tower, comprising a tower body, the tower body is provided with an air inlet at the bottom and an air outlet at the top, the tower body is internally provided with biological filler modules and a spraying structure, the tower body is internally provided with shelves, each shelf is provided with at least two installation areas, each biological filler module is horizontally movably installed in the corresponding installation area of the shelf through an installation structure, so as to realize the extension and retraction of each biological filler module; the tower body is provided with a hatch corresponding to each biological filler module; two biological filler modules with the same extension and retraction direction are provided with a porous partition plate for gas passing between them; the biological filler module comprises a square shell, the upper side wall, the lower side wall and the vertical side wall of the shell which faces the adjacent biological filler module are all air-permeable side walls; a closed cloth roll winding and unwinding device is arranged on the upper end of each installation area of the shell shelf, an air-tight cloth roll is wound on the closed cloth roll winding and unwinding device, one end of the air-tight cloth roll is connected to the upper side wall of the corresponding biological filler module; when the biological filler module in the installation area is extended to the position, the rear side of the shell blocks the installation area, and the corresponding air-tight cloth roll can seal and cover the upper part of the installation area, and the gas in the installation area enters the adjacent biological filler module through the porous partition plate.

[0007] The shelf is provided with a fixing structure for fixing each biological filler module when it is retracted to the position.

[0008] The fixing structure comprises a rotating shaft rotatably arranged on the shelf, the shelf is provided with a rotating shaft driving mechanism, a supporting frame is synchronously rotatably arranged on the rotating shaft, and the limiting and fixing of the biological filler module by the supporting frame are realized by driving the rotating shaft to rotate through the rotating shaft driving mechanism; the supporting frame has a fixed position which is turned to vertical to contact the shell of the biological filler module to limit and fix it, and the supporting frame also has a support position which is turned to horizontal to support the biological filler module to make it horizontally and stably slide out.

[0009] Each supporting frame is a triangular frame.

[0010] The number of the shelves is at least two and they are arranged in an interval upward and downward.

[0011] The installation structure comprises two chains which are arranged in an interval perpendicular to the movement direction of the biological filler module on the shelf, the shelf is provided with a first sprocket and a second sprocket which are arranged in an interval along the movement direction of the biological filler module for mounting each chain, the shelf is further provided with a sprocket driving motor for driving one of the sprockets to rotate, and the extension and retraction of the biological filler module are realized through the two chains.

[0012] The shell of each biological filler module is provided with a tension buckle.

[0013] The inner wall of the tower body and the side of each biological filler module towards the inner wall of the tower body are provided with a reinforcing layer for preventing the biological filler module shell from bulging and causing the biological filler module to be dislocated.

[0014] The lower part of the tower body is provided with a spray liquid washing pool, and a gas-liquid separation porous baffle is arranged between the spray liquid washing pool and the bottommost biological filler module in the tower body.

[0015] The gas-liquid separation porous baffle is in a conical structure with the middle part being high and the two sides gradually decreasing, so that the waste gas is concentrated in the middle part of the gas-liquid separation porous baffle and passes through, preventing the wall flow phenomenon; at the same time, it is beneficial to the dispersion of the spray liquid to the inner wall of the tower body and the reduction of the pressure difference generated by gas-liquid convection.

[0016] The beneficial effects of the present application are: when one of the biological filler modules is replaced, the module is stretched out, the closed cloth roll is released during the stretching out of the biological filler module, and the released closed cloth roll seals and blocks the upper part of the installation area as the biological filler module is stretched out to the position, at this time, the rear side of the shell blocks the installation area, the waste gas entering the installation area from the bottom of the tower body cannot directly overflow to the upper part of the tower body without purification treatment, but can only pass through the porous partition plate into the adjacent biological filler module for further purification, ensuring the purification effect of the waste gas. Moreover, the replacement of the filler does not affect the purification of the waste gas, and the machine does not need to be stopped, the clean gas working space and the filler replacement operation space are separated to ensure the safety of personnel. The purification tower of this structure is very convenient and safe for filler replacement and cleaning and maintenance. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 is a structural schematic diagram of an embodiment of an assembled modular biological filler purification tower of the present application;

[0018] Figure 2 is Figure 1 a structural schematic diagram of the spray structure in the middle;

[0019] Figure 3 is Figure 1 a structural schematic diagram of the cloth gas pipe in the middle;

[0020] Figure 4 is an installation structure schematic diagram between the shelf and the biological filler module; it is also a state schematic diagram of the supporting frame in the fixed position;

[0021] Figure 5 is a state schematic diagram of the supporting frame in the supporting position;

[0022] Figure 6 is a structural schematic diagram of the installation structure;

[0023] Figure 7 is a structural schematic diagram of the closed cloth roll blocking the installation area after the biological filler module is stretched out. Detailed Implementation

[0024] An embodiment of the present invention, namely a modular biological packing purification tower, is as follows: Figures 1-7 As shown, the tower includes a tower body 1, with an air inlet at the bottom and an air outlet 3 at the top. An air inlet pipe 2 is installed at the air inlet, and an air pump 4 is installed on the air inlet pipe. A first valve 5 is installed upstream of the air pump on the air inlet pipe, and a second valve 6 is installed downstream of the air pump on the air inlet pipe. An air distribution pipe 8, connected to the air inlet pipe, is installed inside the tower body. The air distribution pipe includes multiple air pipes arranged longitudinally and transversely, each with multiple air holes 9. A spray liquid washing tank 7 is located at the lower end of the tower body, and the air distribution pipe is situated in the spray liquid within the washing tank. A drain pipe 19 is installed at the bottom of the tower body. A spray structure is located inside the tower body and below the air outlet. The spray structure includes spray pipes 12 arranged in a cross shape, each with multiple spray heads 13. The spray pipes are connected to the spray liquid washing tank via a pipeline 10, on which a pressure pump 11 is installed. A gas-liquid separation porous baffle 30 is installed inside the tower, above the spray liquid washing tank and below the bottom biological packing module. The gas-liquid separation porous baffle has a conical structure that is higher in the middle and gradually lower on both sides, so that the waste gas is concentrated in the middle of the gas-liquid separation porous baffle and passes through it, preventing wall flow; at the same time, it facilitates the dispersion of the spray liquid to the inner wall of the tower and flows down, reducing the pressure difference caused by gas-liquid convection.

[0025] The tower body also houses biological packing modules 14, and internal shelves 17. Each shelf has two installation areas 18. Each biological packing module is horizontally and movable within its corresponding installation area on the shelf via an installation structure, enabling its extension and insertion. The tower body has doors corresponding to each biological packing module, and ladders and operating platforms are provided on the outer walls of the tower body to facilitate the replacement, cleaning, and maintenance of the biological packing modules inside the tower. Specifically, a porous baffle 15 for gas passage is provided between two adjacent biological packing modules along the direction perpendicular to their movement. The porous baffle can be connected to the shelves. In this embodiment, the extension and insertion direction of the biological packing module is defined as the front-to-back direction, and the direction perpendicular to the biological packing module's movement is defined as the left-to-right direction. Figure 4 The left and right directions in the middle.

[0026] The biological filler module comprises a square shell, the upper side wall, the lower side wall and the vertical side wall of the shell are all air-permeable side walls, the exhaust gas entering the biological filler module through the lower side wall can enter the upper part of the tower through the upper side wall and enter the adjacent biological filler module through the vertical side wall. The closed cloth roll winding and unwinding device 20 is arranged on the upper end of the shelf of the shell in each installation area, the air-tight cloth roll 21 is wound on the closed cloth roll winding and unwinding device, one end of the air-tight cloth roll is connected to the upper side wall of the corresponding biological filler module. During the extension process of the biological filler module, the closed cloth roll winding and unwinding device synchronously releases the air-tight cloth roll, and during the feeding process of the biological filler module, the closed cloth roll winding and unwinding device synchronously winds the air-tight cloth roll. When the biological filler module in the installation area is extended to the position, the rear side of the shell blocks the installation area, and the corresponding air-tight cloth roll can seal and cover the upper part of the installation area, so that the exhaust gas entering the installation area will not directly overflow to the upper part of the tower without purification treatment, but will enter the adjacent biological filler module through the perforated partition plate for purification treatment. The closed cloth roll winding and unwinding device comprises a winding rotating rod and a winding motor for driving the rotation of the winding rotating rod.

[0027] In order to stabilize each biological filler module, a fixing structure is arranged on the shelf for fixing each biological filler module when it is fed to the position. In the embodiment, the fixing structure comprises a rotating shaft 23 arranged on the shelf, and a rotating shaft driving mechanism 24 is arranged on the shelf, specifically, the rotating shaft driving mechanism is a driving motor. A supporting frame 25 is synchronously arranged on the rotating shaft, two spaced supporting frames are arranged on one rotating shaft, and the limiting and fixing of the biological filler module by the supporting frame are realized by driving the rotating shaft to rotate through the rotating shaft driving mechanism. The supporting frame has a fixed position which is turned to vertical to contact the shell of the biological filler module to limit and fix it, as shown in Figure 4 The supporting frame also has a support position which is turned to horizontal to support the biological filler module to make it horizontally stable and slide out, as shown in Figure 5 Each supporting frame is a triangular frame. In the embodiment, the number of shelves is three and they are arranged in an upper and lower interval.

[0028] In the embodiment, the extension and retraction of the biological filler modules are achieved by mechanical means. Specifically, the mounting structure includes two chains 26 arranged on the shelves in the direction perpendicular to the movement direction of the biological filler modules, the shelves are provided with first and second sprockets 27 and 28 arranged in the movement direction of the biological filler modules for mounting the chains, the shelves are further provided with a sprocket drive motor 29 for driving one of the sprockets to rotate, and the biological filler modules are extended and retracted by the two chains. The shell of each biological filler module is provided with a tension buckle 22, which can be used to pull out the biological filler module by external force when the sprocket drive motor is not working or needs to be repaired, so as to complete the cleaning or replacement of the filler. A reinforcing layer 16 is arranged between the inner wall of the tower body and the side of each biological filler module facing the inner wall of the tower body, which is used to prevent the biological filler module from being dislocated due to the bulging of the shell. The reinforcing layer can be a metal plate or a concrete plate.

[0029] In use, when the biological filler modules need to be replaced, one module can be replaced at a time. When one of the biological filler modules is replaced, the module is extended by the sprocket drive motor or manually by the tension buckle, and the closed roll is released during the extension of the biological filler module. With the biological filler module extended in place, the released closed roll seals and blocks the upper part of the installation area. At this time, the rear side of the shell of the biological filler module blocks the installation area, and the exhaust gas entering the installation area from the bottom of the tower body cannot directly overflow to the upper part of the tower body without purification treatment, but can only enter the adjacent biological filler module through the porous partition plate for further purification. In addition, the replacement of the filler does not affect the purification of the exhaust gas, and the clean air working space and the filler replacement operation space are separated to ensure the safety of personnel. The purification tower with the above structure is convenient and safe for filler replacement, cleaning and maintenance.

[0030] In other embodiments of the application, the number of shelves can be adjusted according to actual needs, such as 1 or 2 or 4 or more; the number of installation areas on each shelf can be three or four arranged horizontally; the number of installation areas on each shelf can be four arranged in a cross shape; the supporting frame can be a rectangular frame; the supporting frame can be formed by a supporting flat plate; and the number of supporting frames on each rotating shaft can also be adjusted according to actual needs, such as 1 or 3 or more.

Claims

1. A modular biological packing purification tower, comprising a tower body, an air inlet at the bottom and an air outlet at the top, wherein biological packing modules and a spray structure are arranged inside the tower body, characterized in that: The tower body is equipped with shelves, each shelf having at least two installation areas. Each biological packing module is horizontally and movable in its corresponding installation area on the shelf via an installation structure, enabling the extension and insertion of each biological packing module. The tower body is equipped with a hatch corresponding to each biological packing module. A porous baffle for gas passage is provided between two adjacent biological packing modules with the same extension direction. Each biological packing module includes a square shell, with the upper sidewall, lower sidewall, and vertical sidewall facing the adjacent biological packing module along the direction of movement being breathable sidewalls. A sealed fabric roll winding device is provided at the upper end of each installation area on the shell shelf. An airtight sealed fabric roll is wound on the sealed fabric roll winding device, with one end of the sealed fabric roll connected to the upper sidewall of the corresponding biological packing module. When the biological packing module in the installation area is extended into position, the rear side of the shell seals the installation area, and the corresponding sealed fabric roll can seal and cover the upper part of the installation area. The gas in the installation area enters the adjacent biological packing module through the porous baffle.

2. The modular biological packing purification tower according to claim 1, characterized in that: The shelf is equipped with a fixing structure for securing each biological filler module when it is inserted into place.

3. The modular biological packing purification tower according to claim 2, characterized in that: The fixing structure includes a rotating shaft rotatably mounted on a shelf, a rotating shaft drive mechanism on the shelf, and a support frame rotatably mounted on the rotating shaft. The rotating shaft is driven to rotate by the rotating shaft drive mechanism to limit and fix the biological filler module. The support frame has a fixing position that flips to a vertical position to contact the shell of the biological filler module for limiting and fixing it, and a support position that rotates to a horizontal position to support the biological filler module so that it can slide out horizontally and stably.

4. The modular biological packing purification tower according to claim 3, characterized in that: Each of the aforementioned support frames is a triangular frame.

5. The modular biological packing purification tower according to claim 1, characterized in that: The number of shelves is at least two, and they are arranged at vertical intervals.

6. The modular biological packing purification tower according to claim 1, characterized in that: The installation structure includes two chains spaced apart on a shelf along the direction of movement perpendicular to the biological filler module. The shelf is provided with a first sprocket and a second sprocket spaced apart along the direction of movement of the biological filler module for each chain to be installed. The shelf is also provided with a sprocket drive motor that drives one of the sprockets to rotate. The biological filler module is extended and fed in through the two chains.

7. The modular biological packing purification tower according to claim 1, characterized in that: Each biological packing module has a tension buckle on its shell.

8. The modular biological packing purification tower according to claim 1, characterized in that: A reinforcing layer is provided between the inner wall of the tower body and the side of each biological packing module facing the inner wall of the tower body. The reinforcing layer is used to prevent the biological packing module shell from bulging and causing the biological packing module to misalign.

9. The modular biological packing purification tower according to any one of claims 1-8, characterized in that: The lower part of the tower body is equipped with a spray liquid washing tank, and a gas-liquid separation porous baffle is installed between the spray liquid washing tank and the bottom biological packing module inside the tower body.

10. The modular biological packing purification tower according to claim 9, characterized in that: The gas-liquid separation porous baffle has a conical structure that is high in the middle and gradually decreases on both sides, so that the waste gas is concentrated in the middle of the gas-liquid separation porous baffle and passes through, preventing wall flow phenomenon; at the same time, it is conducive to the spray liquid being dispersed to the inner wall of the tower and flowing down, reducing the pressure difference generated by gas-liquid convection.

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