A plate-and-frame filter press room unorganized gas treatment system

Abstract

The application relates to the technical field of waste gas treatment, in particular to a plate-and-frame filter press room unorganized gas treatment system which comprises a filter press room, a filtering device, an absorption device and an air induction device, the filter press room, the filtering device, the absorption device and the air induction device are sequentially connected, the filtering device comprises a filtering device body, a first air inlet is arranged on one side of the filtering device body, a first air outlet is arranged on the top surface of the filtering device body, a filtering screen is vertically arranged in the filtering device body and is in sliding connection with the filtering device body, a first limiting block and a second limiting block are arranged in the filtering device body, the first limiting block is located between the second limiting block and the first air inlet, the filtering screen is located between the first limiting block and the second limiting block, and the second limiting block is located on the side of the first air outlet close to the first air inlet; an arc-shaped elastic sheet is arranged on the side of the filtering screen away from the first air inlet and is connected with the filtering device body. The system can effectively prevent the filtering screen from being blocked.

Description

Technical Field

[0001] This invention relates to the field of waste gas treatment technology, specifically to an unorganized gas treatment system for a plate and frame filter press room. Background Technology

[0002] In current industrial production processes, fugitive emissions are a widespread and pressing problem. Many industrial activities, such as chemical, pharmaceutical, coating, and printing industries, inevitably generate various volatile organic compounds (VOCs), dust, and odorous gases during the storage, transportation, and processing of raw materials, as well as the production and packaging of products. If these waste gases are directly released into the atmosphere without effective collection and treatment, they will cause serious harm to the environment and human health.

[0003] Traditional gas treatment systems are often not adaptable enough to handle complex operating conditions and variable gas compositions. For example, filter devices often become clogged, affecting the treatment efficiency of subsequent gases. They also rely heavily on activated carbon adsorption devices, resulting in a large amount of activated carbon being used. Summary of the Invention

[0004] To address the problems existing in the prior art, the present invention provides a plate and frame filter press room unorganized gas treatment system to solve at least one of the above-mentioned technical problems.

[0005] To achieve the above-mentioned objectives, the present invention provides the following technical solution:

[0006] A fugitive gas treatment system for a plate and frame filter press chamber includes a filter press chamber, a filtration device, an absorption device, and an exhaust device. The filter press chamber, filtration device, absorption device, and exhaust device are connected sequentially. The filtration device includes a filter body with a first air inlet on one side, which communicates with the interior of the filter press chamber. A first exhaust port is provided on the top surface of the filter body, which communicates with the interior of the absorption device. A filter screen is vertically arranged inside the filter body and is slidably connected to the filter body. A first limiting block and a second limiting block are provided inside the filter body. The first limiting block is located between the second limiting block and the first air inlet, and the filter screen is located between the first limiting block and the second limiting block. The second limiting block is located on the side of the first exhaust port closer to the first air inlet. An arc-shaped spring is provided on the side of the filter screen opposite to the first air inlet, and the end of the arc-shaped spring that is not connected to the filter screen is connected to the filter body.

[0007] Preferably, the filter screen is provided with arc-shaped spring pieces at positions near both ends of the filter screen.

[0008] Preferably, the bottom of the filter device body is provided with a dust discharge hole, which is located between the filter screen and the first air inlet; the dust discharge hole is connected to a dust discharge channel, and a first valve is provided on the dust discharge channel.

[0009] Preferably, a ventilation block is provided on the filter press room, and an air inlet channel is provided on the ventilation block. One end of the air inlet channel is connected to the outside of the filter press room, and the other end is connected to the inside of the filter press room. A piston block is provided in the air inlet channel. A blocking body is provided on the ventilation block at one end near the outside of the filter press room to prevent the piston block from leaving the air inlet channel. A spring is provided on the side of the air inlet channel opposite to the blocking body to hold the piston block against the blocking body. A bypass hole is provided on the ventilation block at the position of the piston block near the spring.

[0010] Preferably, the ventilation block has a mounting body (5-6) for mounting the spring at one end away from the outside of the filter press room. The mounting body has a mounting groove, one end of the spring is located in the mounting groove, and the other end is connected to the piston block.

[0011] Preferably, the filter device body is provided with an electric heating wire mesh, and the arc-shaped spring is located between the electric heating wire mesh and the filter mesh; the bottom of the filter device body is provided with an air supply hole, the air supply hole is connected to an air supply channel, and a second valve is provided on the air supply channel.

[0012] Optionally, the heating wire mesh can be replaced with an igniter.

[0013] Preferably, the absorption device includes an absorption device body, a second air inlet is provided on one side of the absorption device body, the second air inlet is connected to the first exhaust port, a second exhaust port is provided on the top surface of the absorption device body, the second exhaust port is connected to the air intake device; an extension tube connected to the second air inlet is provided inside the absorption device, the bottom end of the extension tube is provided near the bottom surface of the absorption device; an activated carbon adsorption device is provided inside the absorption device near the top.

[0014] Preferably, the air-expelling device is an air-expelling fan, and an air-expelling pipe is provided on the top surface of the absorption device corresponding to the position of the second exhaust hole, and the air-expelling fan is connected to the air-expelling pipe.

[0015] Preferably, the activated carbon adsorption device is an activated carbon adsorption mesh or an activated carbon adsorption layer.

[0016] The aforementioned unorganized gas handling system for plate and frame filter press rooms has at least the following advantages:

[0017] 1. By combining the filter screen and the arc-shaped spring, when the filter screen gradually becomes clogged during use, the arc-shaped spring stores energy. After each use, the arc-shaped spring releases the energy, causing the filter screen to strike the first limit block, which helps the attached dust to fall off and effectively prevents the filter screen from clogging.

[0018] 2. By setting up an electric heating wire mesh or igniter to heat the gas, volatile organic compounds and other combustible gases are burned, thereby reducing the amount of them after passing through the filtration device, thus reducing the amount of harmful gases in contact with activated carbon, and thus reducing the amount of activated carbon used. Attached Figure Description

[0019] Figure 1 A schematic diagram of the structure of the unorganized gas treatment system in the plate and frame filter press room of the embodiment is shown;

[0020] Figure 2 A schematic diagram of the internal structure of the filtration device in the embodiment is shown;

[0021] Figure 3 A schematic diagram of the internal structure of the ventilation block in the embodiment is shown;

[0022] Figure 4 A schematic diagram of the internal structure of the absorption device in the embodiment is shown;

[0023] Marked in the attached diagram:

[0024] Filter press room 1, filtration device 2, absorption device 3, exhaust fan 4, ventilation block 5;

[0025] Filter device body 2-1, first air inlet 2-2, first exhaust outlet 2-3, filter screen 2-4, first limiting block 2-5, second limiting block 2-6, arc-shaped spring 2-7, dust discharge hole 2-8, dust discharge channel 2-9, electric heating wire mesh 2-10, air replenishment hole 2-11, air replenishment channel 2-12;

[0026] Absorption device body 3-1, second air inlet 3-2, second exhaust outlet 3-3, extension pipe 3-4, air duct 3-5; activated carbon adsorption device 3-6;

[0027] Air inlet channel 5-1, piston block 5-2, blocking body 5-3, spring 5-4, bypass hole 5-5, mounting body 5-6. Detailed Implementation

[0028] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0029] For examples, please refer to Figures 1-4This embodiment provides a fugitive gas treatment system for a plate and frame filter press chamber, including a filter press chamber 1, a filtration device 2, an absorption device 3, and an exhaust fan 4. The filter press chamber, filtration device, absorption device, and exhaust fan 4 are connected sequentially. The filtration device includes a filter body 2-1, with a first air inlet 2-2 on one side, communicating with the interior of the filter press chamber. A first exhaust port 2-3 is located on the top surface of the filter body, communicating with the interior of the absorption device. A filter screen 2-4 is vertically installed inside the filter body, and the filter screen is slidably connected to the filter body. The filter device body is provided with a first limiting block 2-5 and a second limiting block 2-6. The first limiting block is located between the second limiting block and the first air inlet. The filter screen is located between the first limiting block and the second limiting block. The second limiting block is located on the side of the first exhaust port near the first air inlet. An arc-shaped spring piece 2-7 is provided on the side of the filter screen opposite to the first air inlet. The end of the arc-shaped spring piece that is not connected to the filter screen is connected to the filter device body. In this embodiment, it is preferable that arc-shaped spring pieces are provided on the filter screen near both ends of the filter screen. A dust discharge hole 2-8 is provided at the bottom of the filter device body. Located between the filter screen and the first air inlet, preferably close to the first limiting block; the dust discharge hole is connected to a dust discharge channel 2-9, and a first valve is provided on the dust discharge channel; an electric heating wire mesh 2-10 is provided inside the filter device body, and the arc-shaped spring is located between the electric heating wire mesh and the filter screen; an air replenishment hole 2-11 is provided at the bottom of the filter device body, the air replenishment hole is connected to an air replenishment channel 2-12, and a second valve is provided on the air replenishment channel; a ventilation block 5 is provided on the filter press chamber, and an air inlet channel 5-1 is provided on the ventilation block 5, one end of the air inlet channel communicating with the outside of the filter press chamber, and the other end communicating with the inside of the filter press chamber; A piston block 5-2 is provided in the air inlet channel. A blocking body 5-3 is provided on the ventilation block at one end near the outside of the filter press room to prevent the piston block from leaving the air inlet channel. A spring 5-4 is provided on the side of the air inlet channel opposite to the blocking body to hold the piston block against the blocking body. A bypass hole 5-5 is provided on the ventilation block at the position of the piston block near the spring. In actual manufacturing, a mounting body 5-6 for installing the spring can be provided on the ventilation block at one end away from the outside of the filter press room. The mounting body is provided with a mounting groove 5-7. One end of the spring is located in the mounting groove, and the other end is connected to the piston block.The absorption device includes an absorption device body 3-1, a second air inlet 3-2 on one side of the absorption device body, which communicates with the first exhaust port, and a second exhaust port 3-3 on the top surface of the absorption device body, which communicates with the air-guiding device, wherein the air-guiding device is generally an exhaust fan. During installation, an exhaust pipe 3-5 can be installed on the top surface of the absorption device corresponding to the second exhaust port, and the exhaust fan is connected to the exhaust pipe. An extension pipe 3-4 communicating with the second air inlet is provided inside the absorption device, and the bottom end of the extension pipe is located near the bottom surface of the absorption device. An activated carbon adsorption device is provided near the top of the absorption device. In this embodiment, the activated carbon adsorption device can be an activated carbon adsorption mesh or an activated carbon adsorption layer, etc.

[0030] When using the aforementioned plate and frame filter press chamber fugitive gas treatment system, the induced draft fan is first started. Under the action of the induced draft fan, a negative pressure is generated inside the filter press chamber. Under the action of the negative pressure, the piston block compresses the spring until the bypass hole connects with the air inlet channel. The gas in the filter press chamber passes through the filtration device and the absorption device in sequence, and is finally discharged. When passing through the filtration device, the filter screen filters the dust contained in the gas. The filtered gas enters the absorption device. Before use, the absorption device is filled with adsorption liquid, such as water or alkaline solution. The height of the adsorption liquid is higher than the bottom of the extension pipe. Under the guidance of the extension pipe, the filtered gas first enters the adsorption liquid to remove the gas dissolved in the adsorption liquid. The remaining gas passes through the activated carbon adsorption device and obtains relatively pure gas, which is then discharged into the external environment. During this process, the gas can be heated by an electric heating wire to burn volatile organic compounds and other combustible gases, thereby reducing the amount of them after passing through the filtration device, thus reducing the amount of harmful gases in contact with the activated carbon, and thus reducing the amount of activated carbon used. In actual use, the electric heating wire can also be ignited. In addition to the filter replacement, air or oxygen can be supplied to the filter device by opening the second valve during combustible gas combustion. During combustion, the initial concentration of combustible gas is sometimes high, causing rapid gas expansion within the filter device. The induced draft fan attracts the expanding gas, preventing its accumulation and damage to the filter device. Furthermore, the negative pressure maintained within the filter press chamber quickly absorbs some of the expanding gas, causing the piston to return to its original position. This facilitates safe operation of the equipment. After the combustible gas is consumed, the processing system can resume normal operation. During use, the filter screen gradually becomes clogged, compressing the arc-shaped spring. When the induced draft fan stops after each use, the filter screen returns to its original position and strikes the first limit block under the action of the arc-shaped spring, facilitating the removal of adhering dust. Simultaneously, the piston returns to its original position under the action of the spring, creating negative pressure within the filter press chamber, further enhancing dust removal. After use, the first valve can be opened to allow the dislodged dust to be discharged through the dust exhaust channel.

[0031] It should be noted that the terms "one embodiment," "embodiment," "exemplary embodiment," "some embodiments," etc., mentioned in the specification indicate that the described embodiment may include a specific feature, structure, or characteristic, but not every embodiment necessarily includes that specific feature, structure, or characteristic. Furthermore, such phrases do not necessarily refer to the same embodiment. Moreover, when a specific feature, structure, or characteristic is described in connection with an embodiment, implementing such a feature, structure, or characteristic in conjunction with other embodiments, whether explicitly described or not, is within the knowledge scope of those skilled in the art.

[0032] It should be readily understood that “on,” “above,” and “on top of” in this disclosure should be interpreted in the broadest manner, such that “on” means not only “directly on something” but also “on something” with an intermediate feature or layer therebetween, and that “above” or “on top of” means not only “on something” but also “on something” without an intermediate feature or layer therebetween (i.e., directly on something).

[0033] Furthermore, for ease of explanation, spatially relative terms such as "below," "below," "under," "above," and "above" may be used to describe the relationship of one element or feature relative to other elements or features as shown in the figures. Spatially relative terms are intended to encompass different orientations of the device in use or operation other than those shown in the figures. The device may have other orientations (rotated 90 degrees or in other orientations), and the spatially relative descriptive terms used herein may be interpreted accordingly.

[0034] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0035] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A fugitive gas treatment system for a plate and frame filter press chamber, comprising a filter press chamber (1), a filtration device (2), an absorption device (3), and an exhaust fan (4), wherein the filter press chamber, the filtration device, the absorption device, and the exhaust fan are connected in sequence, characterized in that: The filtration device includes a filter device body (2-1), a first air inlet (2-2) on one side of the filter device body, the first air inlet communicating with the interior of the filter press chamber, a first exhaust port (2-3) on the top surface of the filter device body, the first exhaust port communicating with the interior of the absorption device, a filter screen (2-4) vertically arranged inside the filter device body, the filter screen being slidably connected to the filter device body, a first limiting block (2-5) and a second limiting block (2-6) arranged inside the filter device body, the first limiting block being located between the second limiting block and the first air inlet, the filter screen being located between the first limiting block and the second limiting block, and the second limiting block being located on the side of the first exhaust port closer to the first air inlet; An arc-shaped spring piece (2-7) is provided on the side of the filter screen facing away from the first air inlet. The end of the arc-shaped spring piece that is not connected to the filter screen is connected to the filter device body. The filter press room is provided with a ventilation block (5), and the ventilation block is provided with an air inlet channel (5-1). One end of the air inlet channel is connected to the outside of the filter press room, and the other end is connected to the inside of the filter press room. A piston block (5-2) is provided in the air inlet channel. A blocking body (5-3) is provided on the ventilation block at one end near the outside of the filter press room to prevent the piston block from leaving the air inlet channel. A spring (5-4) is provided on the side of the air inlet channel opposite to the blocking body to hold the piston block against the blocking body. A bypass hole (5-5) is provided on the ventilation block at the position of the piston block near the spring.

2. The fugitive gas treatment system for a plate and frame filter press room according to claim 1, characterized in that: The filter screen has arc-shaped spring pieces near both ends.

3. The fugitive gas treatment system for a plate and frame filter press room according to claim 1, characterized in that: The bottom of the filter device body is provided with a dust discharge hole (2-8), which is located between the filter screen and the first air inlet. The dust discharge hole is connected to a dust discharge channel (2-9), and a first valve is installed on the dust discharge channel.

4. The fugitive gas treatment system for a plate and frame filter press room according to claim 1, characterized in that: The ventilation block has a mounting body (5-6) for installing the spring at one end away from the filter press room. The mounting body has a mounting groove (5-7). One end of the spring is located in the mounting groove, and the other end is connected to the piston block.

5. The fugitive gas treatment system for a plate and frame filter press room according to claim 1, characterized in that: The filter device body is provided with an electric heating wire mesh (2-10), and the arc-shaped spring is located between the electric heating wire mesh and the filter mesh; The bottom of the filter device body is provided with an air supply hole (2-11), the air supply hole is connected to an air supply channel (2-12), and a second valve is provided on the air supply channel.

6. The fugitive gas treatment system for a plate and frame filter press room according to claim 5, characterized in that: The heating wire mesh is replaced by an igniter.

7. A fugitive gas treatment system for a plate and frame filter press room according to any one of claims 1-3, characterized in that: The absorption device includes an absorption device body (3-1), a second air inlet (3-2) is provided on one side of the absorption device body, the second air inlet is connected to the first exhaust port, and a second exhaust port (3-3) is provided on the top surface of the absorption device body, the second exhaust port is connected to the air duct. The absorption device is provided with an extension tube (3-4) that communicates with the second air inlet, and the bottom end of the extension tube is located close to the bottom surface of the absorption device. An activated carbon adsorption device (3-6) is installed near the top of the absorption device.

8. The fugitive gas treatment system for a plate and frame filter press room according to claim 7, characterized in that: The air-expelling device is an air blower, and an air-expelling pipe (3-5) is provided on the top surface of the absorption device corresponding to the position of the second exhaust hole. The air blower is connected to the air-expelling pipe.

9. The fugitive gas treatment system for a plate and frame filter press room according to claim 8, characterized in that: The activated carbon adsorption device is an activated carbon adsorption mesh or an activated carbon adsorption layer.

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